| Toyo Tire & Rubber Co. Ltd. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120134656 | ILLUMINATION DEVICE AND INSPECTION DEVICE OF TIRE - Disclosed are an illumination device and an inspection device of a tire that can easily detect abnormality of the shape of the manufactured tire. A photographing portion | 05-31-2012 |
| 20120130010 | RAILCAR SHOCK ABSORBER RUBBER COMPOSITION - Provided is a railcar shock absorber rubber composition that can provide high cured rubber hardness and simultaneously achieve electrical insulating properties and suppression of a decrease in elastic modulus after strain loading, and includes a diene rubber as a main component, hydrous silicic acid or wet silica with a BET specific surface area of 70 to 130 m | 05-24-2012 |
| 20120118462 | PNEUMATIC TIRE - A pneumatic tire has a tread rubber provided in a tread portion. The tread rubber comprises a cap rubber which constructs a contact surface, a base rubber arranged in an inner peripheral side of the cap rubber, and a cushion rubber formed by a rubber having a smaller storage elastic modulus E′ than the cap rubber and the base rubber. The cap rubber has a penetration portion which reaches a bottom surface of the tread rubber from the contact surface in a center region. The base rubber is terminated by the penetration portion. The cushion rubber extends from a side surface of the tread rubber toward the center region along the base rubber, and bends to an outer peripheral side from a portion near a terminating portion of the base rubber so as to reach the contact surface. | 05-17-2012 |
| 20120118459 | PNEUMATIC TIRE - A pneumatic tire comprises a shoulder land portion extending a tire circumferential direction on a tread surface, and a narrow groove extending in the tire circumferential direction on the shoulder land portion, wherein dimples are arranged in a staggered manner with respect to the tire circumferential direction while overlapping with each other as seen in a depth direction of the narrow groove, on a groove wall in an inner side in a tire width direction of the narrow groove, and a plurality of rows of dimples are formed along the tire circumferential direction. | 05-17-2012 |
| 20120108149 | METHOD FOR MANUFACTURING POLISHING PAD - A method for manufacturing a polishing pad, which may be laminated, with a small number of manufacturing steps, high productivity and no peeling between a polishing layer and a cushion layer includes preparing a cell-dispersed urethane composition by a mechanical foaming method; continuously discharging the cell-dispersed urethane composition onto a face material, while feeding the face material; laminating another face material on the cell-dispersed urethane composition; curing the cell-dispersed urethane composition, while controlling its thickness to be uniform, so that a polishing layer including a polyurethane foam is formed; cutting the polishing layer parallel to the face into two pieces so that two long polishing layers each including the polishing layer and the face material are simultaneously formed; and cutting the long polishing layers to produce the polishing pad. | 05-03-2012 |
| 20120108065 | METHOD FOR MANUFACTURING POLISHING PAD - A method for manufacturing a polishing pad, which may be laminated, with a small number of manufacturing steps, high productivity and no peeling between a polishing layer and a cushion layer includes preparing a cell-dispersed urethane composition by a mechanical foaming method; continuously discharging the cell-dispersed urethane composition onto a face material, while feeding the face material; laminating another face material on the cell-dispersed urethane composition; curing the cell-dispersed urethane composition, while controlling its thickness to be uniform, so that a polishing layer including a polyurethane foam is formed; cutting the polishing layer parallel to the face into two pieces so that two long polishing layers each including the polishing layer and the face material are simultaneously formed; and cutting the long polishing layers to produce the polishing pad. | 05-03-2012 |
| 20120103484 | PNEUMATIC TIRE - A wear indicator provided on a tread surface is constituted of seven sipes of an uppermost sipe, a lowermost sipe and an intermediate sipe, each extending in a lateral direction; and an upper-left sipe, an upper-right sipe, a lower-left sipe and a lower-right sipe, each extending in a longitudinal direction. The sipe uses a combination of an indication part used to indicate a character, and a non-indication part having a narrower groove width and not used to indicate a character, in a depth direction of the sipe. Single numeral is indicated by the combination of the indication parts in the seven sipes, and the combination of the indication parts is changed in the depth direction of the sipe such that the numeral stepwise changes in the depth direction of the sipe. | 05-03-2012 |
| 20120090749 | PNEUMATIC TIRE - In a pneumatic tire in which the sipe extending in a direction crossing a tire circumferential direction is provided on a land portion (block) of a tread portion, a wide part having a wide groove width is provided at three or more places in a length direction of the sipe, and the wide part and a narrow part are formed alternately on a tread surface along the sipe length direction. A plurality of the wide parts are extended in a sipe depth direction from the tread surface, and are provided by changing extended lengths in the sipe depth direction. | 04-19-2012 |
| 20120090748 | PNEUMATIC TIRE - A pneumatic tire comprises a plurality of main grooves extending along a tire circumferential direction, and shoulder lateral grooves extending to an outer side in a tire width direction from a shoulder main groove positioned in an outermost side in the tire width direction among the main grooves, the main grooves and the shoulder lateral grooves being arranged on a tread surface, wherein a depression is formed on a wall surface of a land portion facing to the shoulder lateral groove, in a state in which it is not exposed to a surface of the land portion, and wherein the depression is formed in such a manner that a height of the depression in a depth direction of the shoulder lateral groove is reduced toward an inner side in the tire width direction, and an exposure length of the depression becomes longer in accordance with a progress of an abrasion of the land portion. | 04-19-2012 |
| 20120083571 | RUBBER COMPOSITION AND PNEUMATIC TIRE - A rubber composition, comprising a rubber component, and a carbon black, the carbon black satisfying the dibutyl phthalate (DBP) absorption number [unit: mL/100 g] of the carbon black is from 90 to 180, the difference of the BET specific surface area (BET5) [unit: m | 04-05-2012 |
| 20120074629 | LIQUID-SEALED ANTIVIBRATION DEVICE - In a liquid-sealed antivibration device | 03-29-2012 |
| 20120067478 | PNEUMATIC TIRE - A pneumatic tire has a tread pattern including a lateral groove extending in a direction intersecting a tire circumferential direction and a shoulder block comparted by the lateral groove. A depression region in which a plurality of depressions extending in the tire circumferential direction are arranged in a tire width direction are formed on a surface of the shoulder block in an outer side in the tire width direction than a ground-contact end. The depressions are open to the lateral groove, and are segmented in a center portion in the tire circumferential direction of the shoulder block. | 03-22-2012 |
| 20120056362 | AIR SPRING - In an air spring for a railway vehicle or the like, an upper end | 03-08-2012 |
| 20120055634 | METHOD OF BUILDING CARCASS BAND AND STITCHER APPARATUS - A stitcher apparatus for pressing a carcass ply sheet from its outer periphery as to be pressure-bonded onto a rubber sheet member after that the carcass ply sheet is pasted onto the rubber sheet member wound around a building drum, the stitcher apparatus including: a ring-shaped frame; and a plurality of pressure-bond rollers. | 03-08-2012 |
| 20120024481 | BAND DETACHING METHOD IN BAND BUILDING DRUM AND BAND BUILDING DRUM - The invention enables a built band (B) in a cylindrical shape to be easily and surely detached by peeling off the band (B) from being brought into close contact with a drum peripheral face in an expandable and contractable band building drum (D) constituted by two kinds of pluralities of segments ( | 02-02-2012 |
| 20120024480 | METHOD OF AND APPARATUS FOR MANUFACTURING A TIRE BEAD - A triangular-shaped can be held in an upright posture to be stuck to an outer peripheral surface of a bead core and a leading end and a trailing end can be butted against each other a crack. A filler rubber is held uprightly to be wound around an outer peripheral surface of a bead core supported by a rotary support body, and in joining a leading end and a trailing end of the filler rubber cut to a predetermined length, the neighborhood of the leading end and the neighborhood of the trailing end, respectively, are interposed by first and second interposing means and one of the interposing means is displaced toward the other from a state, in which the leading end and the trailing end are opposed to each other whereby end surfaces of the leading end and the trailing end are butted against each other. | 02-02-2012 |
| 20120018936 | LIQUID-SEALED ANTIVIBRATION DEVICE - A partition element | 01-26-2012 |
| 20120018935 | LIQUID-SEALED ANTIVIBRATION DEVICE - A partition element | 01-26-2012 |
| 20120012256 | Tire Building Method and Rotational Transfer Device for Drum Transfer Support Base in Tire Building Process - The invention can perform building in a process for building a carcass band or a belt/tread band of a tire, in which two drum transfer support bases ( | 01-19-2012 |
| 20120006461 | METHOD OF MANUFACTURING PNEUMATIC TIRE AND PNEUMATIC TIRE - A pneumatic tire is provided with a belt reinforcing layer obtained by spirally winding a reinforcing cord, in a tread side of a belt layer arranged in a tread portion. The method comprises a step of laminating a plurality of cylindrical belt plies including a belt cord extending while inclining with respect to a tire circumferential direction so as to form the belt layer, and a step of spirally winding the reinforcing cord on an outer periphery of the belt layer so as to form the belt reinforcing layer. A winding direction of the reinforcing cord is set to an inverse direction to a direction of inclination of the belt cord of the belt ply positioned in an outermost periphery. | 01-12-2012 |
| 20120006457 | PNEUMATIC TIRE - In a tread part, a land part (block) partitioned by a main transverse groove is provided with a thin groove having a narrower groove width than the main transverse groove and extending in a tire width direction. On a groove lateral face which is one of opposing groove lateral faces of the thin groove, ridges projecting toward the other groove lateral face and extending in a depth direction of the thin groove are provided. A plural number of the ridges are provided in parallel to each other at intervals in a length direction of the thin groove, and an extending length in the depth direction is set up to include at least two kinds. | 01-12-2012 |
| 20120001374 | CYLINDRICAL ELASTIC MEMBER, STRUT MOUNT, AND PRODUCTION METHOD FOR SAID STRUT MOUNT - A cylindrical elastic member for connecting an inner cylindrical section attached to an operating axis as an axial center to an outer cylindrical section arranged outside the inner cylindrical section concentrically therewith, so as to be apart from the inner cylindrical section and surround the section, the member comprising a non-foamed elastic body and a foamed elastic body, about which in a contacting-surface of the member with the inner cylindrical section, at least a contacting-surface area with an outer circumferential end-region of the inner cylindrical section comprises the non-foamed elastic body, and in a contacting-surface of the member with the outer cylindrical section, at least contacting-surface areas with both operating-axis-direction inside surfaces of the outer cylindrical section each comprise the foamed elastic body. | 01-05-2012 |
| 20110315289 | PNEUMATIC TIRE - A sipe extending in a tire width direction is provided in a land part (block) of a tread shoulder region. An inner region on the tire equator side in a length direction of the sipe is formed in a straight sipe portion over the whole of a sipe depth direction. A region on the tread ground contact end side relative to the inner region is divided and provided in the straight sipe portion on the sipe opening side and a waveform sipe portion on the sipe bottom part side in the sipe depth direction. | 12-29-2011 |
| 20110303332 | Pneumatic Tire - A tread rubber includes a cap portion formed by a nonconductive rubber, a base portion formed by a nonconductive rubber, and a conductive portion formed by a conductive rubber. A rubber hardness of the cap portion is higher than a rubber hardness of the base portion. The base portion is segmented in a tire width direction. A rubber forming the cap portion is filled in a recess at a segmented position. The conductive portion has a first portion which is provided in an outer side of the segmented position and extends to an inner side in the tire diametrical direction from the ground surface, and a second portion which is provided continuously in the first portion and extends in the tire width direction so as to run into the side surface or the bottom surface of the tread rubber. | 12-15-2011 |
| 20110297324 | METHOD AND APPARATUS OF ADHERING BELT EDGE TAPE - According to the present invention, in adhering a belt edge tape ( | 12-08-2011 |
| 20110297288 | TIRE MOLD, METHOD OF MANUFACTURING PNEUMATIC TIRE AND PNEUMATIC TIRE - A tire mold has a tire molding surface and a rough surface molding portion provided in the tire molding surface. In the rough surface molding portion, a maximum height Rz is not less than 4 μm, a material ratio Rmr(c) in a case where 20% of the maximum height Rz is set to a cutting level c is not less than 3.5%, and a material ratio Rmr(c) in a case where 30% of the maximum height Rz is set to the cutting level c is not more than 25%. | 12-08-2011 |
| 20110290392 | PNEUMATIC TIRE - A sipe extending in a tire width direction is provided in a land part (block) of a tread shoulder region, and the sipe is configured to include a first sipe part, a second sipe part having a groove width larger than the first sipe part and a third sipe part larger than the second sipe part. The first sipe part is formed over the whole of a sipe length direction in an opening side region of the sipe and the whole of a sipe depth direction in an inner region on the side of a tire equator; the third sipe part is formed in an outer region on the side of a tread ground contact end in a sipe bottom part region; and the second sipe part is formed in a region between the first sipe part and the third sipe part. | 12-01-2011 |
| 20110285064 | TIRE MOLD AND MANUFACTURING METHOD OF PNEUMATIC TIRE - A tire mold has an annular rough surface molding portion extending along a circumferential direction in a region of a tire molding surface for molding a side wall portion. The rough surface molding portion is provided with a projection extending spirally along a circumferential direction at a protruding height between 5 and 300 μm. | 11-24-2011 |
| 20110284168 | Tire Belt Manufacturing Method And Apparatus - In obliquely cutting a belt band-shaped material (B) to a predetermined length and joining belt material pieces (b) as cut to fabricate a belt member (B | 11-24-2011 |
| 20110277897 | PNEUMATIC TIRE - An object of the present invention is to provide a pneumatic tire capable of, while restricting deformation of groove portions to prevent groove cracks, preventing chipping-off or break-off of protruding portions formed on wall surfaces of the groove as well as preventing irregular wear of the tire. In order to achieve the object, a pneumatic tire comprises a tread surface formed with a plurality of groove portions thereon, wherein at least one of the wall surfaces of the groove portion includes protruding portions and cut-off portions opened to the groove wall surface, and the protruding portions and the cut-off portions are formed alternately on the groove wall surface in an extending direction thereof. | 11-17-2011 |
| 20110277895 | PNEUMATIC TIRE - A pneumatic tire has a shoulder land portion including a tread edge and a plurality of lateral grooves which are open to an outer wall of the shoulder land portion in a tread surface. One end in a tire circumferential direction of the outer wall is positioned on an inner side in a tire width direction with respect to another end between the lateral grooves which are adjacent to each other. A vacancy communicating with the lateral groove from the one end of the outer wall is formed so as to face the outer wall. A pawl portion protruding in the tire circumferential direction is provided in a wall surface of the lateral groove which is close to the other end of the outer wall. A height of the pawl portion from a bottom of the lateral groove is gradually decreased toward a leading end. | 11-17-2011 |
| 20110277894 | PNEUMATIC TIRE - A pneumatic tire has a first wall surface faces one side of a circumferential groove, and a second wall surface faces another side of that. The first wall surface alternately has a first inclined surface portion and a first concave portion. The second wall surface alternately has a second inclined surface portion and a second concave portion. A first land portion has a first connection portion connected to a second land portion and a first bottom surface portion constitutes the bottom of the circumferential groove. The second land portion has a second connection portion connected to the first land portion and a second bottom surface portion constitutes the bottom of the circumferential groove. The first inclined surface portion and the second inclined surface portion are alternately arranged along a tire circumferential direction overlapping with each other and a see-through region of the circumferential groove is formed between them. | 11-17-2011 |
| 20110265924 | PNEUMATIC TIRE - The present invention provides a pneumatic tire with reduced air columnar resonance noise level in comparison with the conventional pneumatic tires. The pneumatic tire comprises large-volume oblong holes | 11-03-2011 |
| 20110256817 | POLISHING PAD AND METHOD FOR PRODUCING SAME - An object of the invention is to provide a polishing pad that achieves a high polishing rate and has high thickness precision so that the break-in time (dummy polishing time) can be shortened, and to provide a method for producing same. The invention is directed to a polishing pad including a base material layer and a polishing layer provided on the base material layer, wherein the polishing layer includes a thermoset polyurethane foam having roughly spherical interconnected cells with an average cell diameter of 35 to 200 μm, and the polishing layer has a storage modulus E′ (40° C.) of 130 to 400 MPa at 40° C., a ratio of storage modulus E′ (30° C.) at 30° C. to storage modulus E′ (60° C.) at 60° C. [E′(30° C.)/E′(60° C.)] of 1 to less than 2.5, and a ratio of storage modulus E′ (30° C.) at 30° C. to storage modulus E′ (90° C.) at 90° C. [E′(30° C.)/E′(90° C.)] of 15 to 130. | 10-20-2011 |
| 20110247740 | PNEUMATIC TIRE, TIRE MOLD AND MANUFACTURING METHOD OF PNEUMATIC TIRE - A pneumatic tire has a rough surface portion which is provided on an outer surface of a side wall portion. In the rough surface portion, a maximum height Rz is equal to or more than 4 μm and a skewness Rsk satisfies Rsk>0. | 10-13-2011 |
| 20110240227 | JOINTING HOLDER OF CORD FABRIC - The invention enables easy jointing of cord fabric performed when cord fabric (F) for topping is alternately drawn from two supply positions (P | 10-06-2011 |
| 20110240226 | APPARATUS OF JOINTING CORD FABRIC - The invention enables easy jointing of cord fabric performed when cord fabric (F) for topping is alternately drawn from two supply positions (P | 10-06-2011 |
| 20110226886 | METHOD OF AND APPARATUS FOR WINDING A LENGTHY RUBBER MATERIAL - In the case where a lengthy rubber material (R) is wound on a winding roll ( | 09-22-2011 |
| 20110226398 | Pneumatic Tire - A pneumatic tire is provided with a main groove extending along a tire circumferential direction in a tread. A side wall of a land portion facing the main groove extends so as to be inclined with respect to a tire circumferential direction between a pair of corner portions. The corner portion positioned in an inner side in a width direction of the main groove is set to an inner corner portion and the corner portion positioned in an outer side is set to an outer corner portion. In the inner corner portion, the side wall is formed by a stepped surface expanding to the outer side in the width direction toward a groove bottom and an expansion to the outer side in the width direction in the stepped surface is made smaller from the inner corner portion toward the outer corner portion. | 09-22-2011 |
| 20110225783 | METHOD AND APPARATUS OF REMOVING WEFT OF CORD FABRIC FOR TOPPING SHEET - The invention can firmly and easily remove a finely divided weft piece without leaving the weft piece by constituting a method and an apparatus of removing weft from a cord fabric for a topping sheet in a calender line for topping rubber on a number of pieces of aligned cords by a calender roll. In the midst of transferring a cord fabric transferred to a calender apparatus, weft is finely divided by passing the cord fabric through weft dividing means, thereafter, a plurality of blades arranged movably in a width direction on an upper face side of the cord fabric are reciprocally moved in the width direction over an entire width thereof to be brought into contact with the cord fabric, and the divided weft piece is wiped off to remove by respectively striking respective cords of the cord fabric by the respective blades. | 09-22-2011 |
| 20110220264 | PNEUMATIC TIRE AND METHOD OF MANUFACTURING OF THE SAME - A pneumatic tire has a plurality of projections extending in a tire width direction while protruding out of an inner surface of a tire. The projections are formed in a region coming to an inner side in a tire width direction than an end portion of a belt layer embedded in a tread portion so as to be spaced in a tire circumferential direction. | 09-15-2011 |
| 20110220258 | Pneumatic Tire - A pneumatic tire has a tread that is provided with a plurality of blocks comparted in a tire circumferential direction by a lateral groove. A sipe formed in each of the blocks has a narrow portion that is open in a tread surface, and a wide portion that is communicated with an inner side in a tire diametrical direction of the narrow portion and is widened than the narrow portion. The wide portion gradually increases a widening length in one side in a width direction and gradually decreases a widening length in other side in the width direction, from one end portion of the sipe toward other end portion, and accompanies an angle change at a time of appearing on the tread surface due to a progress of a wear. | 09-15-2011 |
| 20110218263 | POLISHING PAD - A polishing pad generates very few scratches on a surface of a polishing object, and is excellent in planarization property. The polishing pad has a high polishing rate and is excellent in planarization property. The polishing pad grooves become very little clogged with abrasive grains or polishing swarf during polishing and, even when continuously used for a long period of time, the polishing rate is scarcely reduced. | 09-08-2011 |
| 20110214817 | METHOD AND APPARATUS OF FABRICATING CARCASS MEMBER FOR TIRE - The invention can efficiently provide a carcass member constituting a carcass layer of a radial tire, particularly, a carcass member a direction of a cord of which constitutes an angle of substantially 90° relative to a tire circumferential direction, and can easily adjust a length in accordance with a size, one piece of a cord (C) is continuously passed through a rubber coating die ( | 09-08-2011 |
| 20110210488 | LIQUID-SEALED TYPE VIBRATION ISOLATOR - In a liquid-sealed type vibration isolator having a first orifice flow channel | 09-01-2011 |
| 20110207857 | Tire Rubber Composition - An object thereof is to provide a tire rubber composition about which the ice braking-performance is largely improved while the tire-abrasion resistance is kept. In order to achieve the object, a tire rubber composition comprises a diene-based rubber component, and banana fiber in an amount of 0.1 to 20 parts by weight for 100 parts by weight of the diene-based rubber component. | 08-25-2011 |
| 20110198006 | Pneumatic Tire - In a pneumatic tire having a tread rubber which is provided with a plurality of main grooves extending along a tire circumferential direction, and a land portion comparted by the main grooves, a belt layer which is embedded in the tread rubber, and a belt reinforcing layer which is arranged in an outer periphery of the belt layer, the belt reinforcing layer has a reinforcement laminated portion constructed by at least three layers in an inner region of the land portion, and the reinforcement laminated portion is structured such that a depth from a tread surface to an outermost layer is smaller than a groove depth of the main groove, and the outermost layer covers a side of an end portion of a layer positioned in an inner periphery thereof. | 08-18-2011 |
| 20110193276 | LIQUID-SEALED TYPE VIBRATION ISOLATOR - A partitioning member | 08-11-2011 |
| 20110186199 | Pneumatic Tire - An object of the present invention is to provide a pneumatic tire that increases the on-ice performance while ensuring the on-dry road performance and the anti-abrasion performance without loosing advantages of radial sipes. In order to achieve the object, a pneumatic tire comprises a tread surface including a block formed with a plurality of radial sipes disposed radially, each of the radial sipes extends radially from a central area of the block and terminating in an edge area of the block, and the width of the sipes in the edge area of the block is larger than the width of the sipes in the central area of the block. | 08-04-2011 |
| 20110180214 | METHOD AND APPARATUS OF ADHERING AND BUILDING BELT MEMBER - A belt member on a supply conveyor is transferred onto a building drum from an inclined distal end portion while holding on both side edge portions in the width direction thereof. A supply conveyor places the belt member thereon and a hand device which includes holding members, extending in the feeding direction of the supply conveyor. In a state that a distal end portion of the belt member on the supply conveyor is held on a lower surface of the press plates, of the hand device, the belt member is transferred to the building drum along with a feeding operation of the supply conveyor and, at the same time, the belt member is adhered by pressing to a peripheral surface of the building drum from a distal end portion thereof while rotating the building drum along with the transfer of the belt member. | 07-28-2011 |
| 20110151240 | LAYERED SHEETS AND PROCESSES FOR PRODUCING THE SAME - Provided herein is a process for producing a layered sheet. The process involves preparing a cell dispersed urethane composition by a mechanical foaming method. The cell dispersed urethane composition is applied to a base material sheet and cured to produce a polyurethane foam layer of uniform thickness. A releasing sheet may be utilized to make the thickness of the polyurethane foamed layer uniform. Also, provided herein is a layered sheet produced by the above process. The polyurethane foamed layer may have spherical fine cells having an average cell diameter of 20 to 300 μm. The polyurethane foamed layer may have a specific gravity of 0.2 to 0.5. The polyurethane foamed layer may also have a Asker C hardness of 10 to 50 degrees. | 06-23-2011 |
| 20110147975 | APPARTUS FOR PRODUCING HARD POLYURETHANE FOAM BY FROTH PROCESS - The present invention provides an apparatus for producing a hard polyurethane foam by a froth process in which interlocking of the supply of the inert gas compressed or liquefied as a foaming agent with the operation of a foaming machine is made possible. Provided is an apparatus for producing hard polyurethane foam by a froth process having a foaming agent supply means that quantitatively supplies the inert gas as a foaming agent and a foaming means that discharges a hard polyurethane foam obtained by forming a foaming polyol composition by mixing the inert gas and a polyol composition and then by mixing the foaming polyol composition with a polyisocyanate component, in which the foaming agent supply means has a pressure-reducing valve that reduces and adjusts the pressure of the inert gas and a needle valve that adjusts the flow rate of the inert gas, the foaming means has a compression cylinder for compressing and supplying the polyol composition, a regulation means that regulates the supply of the inert gas to the foaming means is provided between the foaming means and the foaming agent supply means, and a control means that controls the regulation means by sensing the operation of the compression cylinder is connected to the regulation means. | 06-23-2011 |
| 20110126951 | PNEUMATIC TIRE - An object of the present invention is to provide a pneumatic tire which prevents not only partial wear but also clack generation in land portion of tread surface. In order to achieve the object, the land portion is formed with a first type sipe having a step portion extending in a width direction of the tire on one sipe wall surface and a second type sipe having a step portion extending in the width direction of the tire on a sipe wall surface facing in the opposite direction of the first type sipe as viewed in the circumferential direction of the tire. | 06-02-2011 |
| 20110053377 | POLISHING PAD - An object of the present invention is to provide a polishing pad that is prevented from causing an end-point detection error due to a reduction in light transmittance from the early stage to the final stage of the process, and to provide a method of producing a semiconductor device with the polishing pad. The present invention is directed to a polishing pad, comprising a polishing layer comprising a polishing region and a light-transmitting region, wherein a polishing side surface of the light-transmitting region is subjected to a surface roughness treatment, and the light-transmitting region has a light transmittance of 40% to 60% at a wavelength of 600 nm before use. | 03-03-2011 |
| 20110048613 | TIRE FORMING METHOD AND TIRE FORMING MOLD - The invention provides a tire forming mold and a tire forming method such that letters and lines of a formed tire can be clearly displayed in the case of forming the tire in which the letters and the lines having different colors are formed in a side wall portion. In a tire forming mold for vulcanization forming by being brought into contact with an outer surface of a tire which is provided with a side rubber layer | 03-03-2011 |
| 20110048600 | Pneumatic Tire - A pneumatic tire has a center rib extending along a tire circumferential direction in a center portion of a tread surface. A width of the center rib is equal to or more than 10% of a grounding width. An outside rubber having a relatively high tension modulus is arranged outside a vehicle and an inside rubber having a relatively low tension modulus is arranged inside the vehicle, by setting an interface formed in the center rib along a tire diametrical direction to a boundary. 300% tension modulus Mo and a rubber hardness Ho of the outside rubber, and 300% tension modulus Mi and a rubber hardness Hi of the inside rubber satisfy the following relationship: | 03-03-2011 |
| 20110005654 | Pneumatic Tire - The present invention provides a pneumatic tire that can exhibit high ice performance throughout a period of use of the tire, and can reduce a rejection rate without complicating production of the tire. The pneumatic tire includes: a plurality of land portions | 01-13-2011 |
| 20110005650 | Pneumatic Tire - An object of the present invention is to provide a pneumatic tire capable of preventing the step-wear in shoulder land portion and increases anti-irregular wear performance. In order to achieve the object, a thin groove is included on the tread surface, the thin groove comprises a first cut groove and a second cut groove, both of which have a start point thereof on an inner side wall of the thin groove as viewed in the width direction of the tire, the second cut groove is located at the inner side than the first cut groove as viewed in the diameter direction of the tire, and the bottom of the first cut groove is located at the inner side than an upper position of the opening of the second cut groove as viewed in the diameter direction of the tire. | 01-13-2011 |
| 20110000594 | Pneumatic Tire - A pneumatic tire is provided with a main groove extending along a tire circumferential direction, and a land portion comparted by the main groove in a tread surface. A reinforcing member having a cord which is inclined at an angle between 75 and 90 degrees with respect to the tire circumferential direction is buried in the vicinity of a groove bottom height of the main groove in an inner region of the land portion. | 01-06-2011 |
| 20100327490 | Pneumatic Tire And Manufacturing Method Of The Same - In a block pattern, transverse grooves | 12-30-2010 |
| 20100326179 | METHOD AND APPARATUS FOR INSPECTING PNEUMATIC TIRE DURING PRODUCTION - An inspection method for inspecting beads provided on a tire building drum in process of production a pneumatic tire includes measuring a displacement amount in a radial direction on each of the beads lying axially on both sides of the drum with a distance sensor such as an eddy current sensor while rotating the drum, synthesizing displacement amounts so obtained on the beads on both the sides, calculating a harmonic of the displacement amounts in the radial direction of the beads by performing harmonic analysis on a resultant synthesized displacement amount, and determining whether the magnitude of the harmonic so calculated falls within a predetermined range. | 12-30-2010 |
| 20100317263 | POLISHING PAD - A method for manufacturing a polishing pad that has high level of optical detection accuracy and is prevented from causing slurry leak from between the polishing region and the light-transmitting region includes preparing a cell-dispersed urethane composition by a mechanical foaming method; placing a light-transmitting region at a predetermined position on a face material or a belt conveyor, continuously discharging the cell-dispersed urethane composition onto part of the face material or the belt conveyor where the light-transmitting region is not placed; placing another face material or belt conveyor on the discharged cell-dispersed urethane composition; curing the cell-dispersed urethane composition to form a polishing region including a polyurethane foam, so that a polishing sheet is prepared; applying a coating composition containing an aliphatic and/or alicyclic polyisocyanate to one side of the polishing sheet and curing the coating composition to form water-impermeable film; and cutting the polishing sheet. | 12-16-2010 |
| 20100314013 | Pneumatic Tire - The object of the present invention is to provide a pneumatic tire which reduces the partial wear while maintaining the durability in the shoulder land portion. In order to achieve the above object, the thin groove extending in the circumferential direction of the tire on the shoulder land portion is arranged so as to be perpendicular to or inclined outward to the groove bottom from the tread surface as viewed in the cross-section of the meridian direction of the tire, and the buttress groove is arranged to position at the inner side than the groove bottom of the thin groove with respect to a normal line of the tread surface as viewed in the radial direction of the tire, at the same time, at the outer side than the inner surface of the tire as viewed in the radial direction of the tire. | 12-16-2010 |
| 20100307663 | RUBBER STRIP MATERIAL EXTRUSION APPARATUS AND RUBBER STRIP MATERIAL EXTRUSION METHOD - An object is to extrude stably a rubber strip material of a predetermined cross-sectional shape without reducing an extruding speed of the rubber strip material from an extruding die. As a means therefor, there is provided an extrusion apparatus | 12-09-2010 |
| 20100307652 | Pneumatic Tire - A pneumatic tire comprises main grooves | 12-09-2010 |
| 20100288424 | METHOD FOR MANUFACTURING PNEUMATIC TIRE - The present invention is to provide a method for manufacturing a pneumatic tire with reduced dynamic unbalance and enhanced durability. The method for manufacturing a pneumatic tire having projections in a buttress portion comprises the steps of laminating a sidewall rubber | 11-18-2010 |
| 20100288409 | Pneumatic Tire - A pneumatic tire has a pair of bead portions, side wall portions extending to an outer side in a tire diametrical direction from the bead portions, and a tread portion connected to an outer end in a tire diametrical direction of each of the side wall portions. An outer wall surface of the side wall portion is provided with a circumferential projection annularly extending along a tire circumferential direction, and a plurality of diametrical projections extending to an inner side in a tire diametrical direction from the circumferential projection and arranged so as to be spaced in the tire circumferential direction. A gap portion formed between the diametrical projections is open to an inner side in the tire diametrical direction. | 11-18-2010 |
| 20100288408 | Pneumatic Tire - A pneumatic tire with improved steering stability without raising air columnar resonance noise level is provided. The pneumatic tire comprises upper thin grooves | 11-18-2010 |
| 20100263776 | Pneumatic Tire - A pneumatic tire comprises main grooves | 10-21-2010 |
| 20100243119 | Pneumatic Tire - A pneumatic tire has a sipe is formed in a land portion of a tread surface. The sipe has a wide region in which a sipe width is made larger than a tread at position which is at a distance from the tread. The wide region is constructed by alternately providing a concave groove extending in a depth direction of the sipe in both sides of a sipe wall surface along a longitudinal direction of the sipe. | 09-30-2010 |
| 20100243116 | Tire Vulcanizing Die and Pneumatic Tire - An object of the present invention is to provide a pneumatic tire, in which a light is prevented from occurring on a wear indicator itself, edge portions and surfaces of a land portion located in the vicinity of the wear indicator, as well as a tire vulcanizing die therefor. In order to achieve the object, the main groove of the pneumatic tire includes on a groove bottom a wear indicator protruding by a predetermined height and in wall portions of the main groove located at both sides of the wear indicator as viewed in a width direction of the groove, at least one of the wall portions of the main groove is formed with at least one concave portion opening to a tread surface. | 09-30-2010 |
| 20100230640 | SEMICONDUCTIVE RUBBER BELT, AND PROCESS FOR PRODUCING THE SAME - An object of the present invention is to provide a semiconductive rubber belt wherein a variation in the electric resistance is decreased, in particular, in the belt circumferential direction so that high-quality images can be formed, and a process for producing the same. In order to achieve the object, in a case where on any single straight line extended in the belt circumferential direction, the maximum value of the molecular orientation degree MOR-C of the semiconductive rubber belt, the minimum value thereof, and the average thereof are set to satisfy a specified relationship. | 09-16-2010 |
| 20100230055 | DRIVING APPARATUS FOR TIRE BUILDING DRUM - The invention provides a driving apparatus for a tire building drum which can reduce load when the drum is rotating, which enables stable expanding and contracting operations and in which a center shaft portion ( | 09-16-2010 |
| 20100230034 | PROCESS FOR PRODUCING TIRE THROUGH VOLUME EXTRUSION - A process for producing a tire according to a strip build technique by the use of an injection molding machine, in which strip rubber injection can be performed in the state of being uniform in the blending degree and plasticity level of rubber material. There is provided a process for producing a tire by the use of injection molding machine (A) equipped with material feeding aperture ( | 09-16-2010 |
| 20100221984 | POLISHING PAD MANUFACTURING METHOD - A method for manufacturing a polishing pad prevents slurry leaks and provides a pad that can be used to provide high optical detection accuracy. The method for manufacturing a polishing pad includes forming a groove for injecting a light-transmitting region forming material on the back surface of a polishing layer; injecting the light-transmitting region forming material into the groove and curing the material to form a light-transmitting region; and buffing the front surface of the polishing layer to expose the light-transmitting region on the front surface. | 09-02-2010 |
| 20100218867 | PNEUMATIC TIRE - The present invention has an object to provide a pneumatic tire having a sipe, which can increase ice braking performance without reducing anti-wear performance. The pneumatic tire includes: a plurality of land portions | 09-02-2010 |
| 20100212793 | Pneumatic Tire - A pneumatic tire has a main groove extending along a tire circumferential direction in a tread surface. A plurality of projections having different heights are provided in a groove bottom of the main groove in such a manner that an outer peripheral surface is inclined so as to repeat trough portions depressed to an inner side in a tire diametrical direction and peak portions protruding to an outer side in the tire diametrical direction along the tire circumferential direction. | 08-26-2010 |
| 20100206447 | Pneumatic Tire - An object of the present invention is to provide a pneumatic tire that ensures both of the on-ice braking performance and the dry braking performance. In order to achieve the object, a pneumatic tire comprises a tread surface including a land portion in which a plurality of sipes are formed, wherein each of the sipes includes a reference plane extending in a depth direction of the sipe from a wavy or zigzag line in the surface of the land portion and each of the sipes is formed with a convex portion having a convex shape in a vertical section with respect to the reference plane in a top area at the front side and the rear side thereof. | 08-19-2010 |
| 20100200153 | Molding Method for a Pneumatic Tire - A pneumatic tire provided with a pair of bead cores, a troidal-shaped carcass surrounding said bead cores, a tread rubber, a carcass, a plurality of belt layers reinforced by steel cords, wherein in at least one of said belt layers, the maximum value of deviation of an angle θc of said steel cords is not greater than 3 degrees with respect to the angle made by said steel cords at the center in the tire width direction and the tire circumferential direction. | 08-12-2010 |
| 20100200141 | RUBBER COMPOSITION FOR COVERING STEEL CORD AND PNEUMATIC TIRE - A rubber composition for covering a steel cord is used to form a rubber-steel cord composite used as a reinforcing material of a pneumatic tire and the like. The rubber composition includes 100 parts by weight of a diene rubber, from 0.3 to 1.5 parts by weight of N-t-butyl-2-benzothiazole sulfenimide, and from 5 to 20 parts by weight of active zinc oxide having a specific surface area by nitrogen adsorption using BET method of 20 m | 08-12-2010 |
| 20100200135 | Pneumatic Tire - An object of the present invention is to provide a pneumatic tire excellent in running performance on a rough road. In order to achieve the object, a pneumatic tire comprises a tread surface having a plurality of lug grooves each of which opens to a sidewall, the sidewall includes a plurality of protrusions disposed thereon, wherein each of the lug grooves includes a protruding strip portion disposed on a groove bottom of the lug groove and extending along an extending direction of the lug groove, the protruding strip portion has a start point thereof at an inner side than a ground-contact point in a width direction as viewed from a front side thereof, and extends up to one of the protrusions beyond an open end of the lug groove located at the sidewall side and is connected to the protrusion. | 08-12-2010 |
| 20100200131 | NON-PNEUMATIC TIRE AND ITS MANUFACTURING METHOD - In a non-pneumatic tire having a support structure body supporting a load from a vehicle, the support structure body (SS) comprises an inner annular portion ( | 08-12-2010 |
| 20100193100 | Pneumatic Tire - A pneumatic tire with improved steering stability without raising air columnar resonance noise is provided. The pneumatic tire comprises first oblong holes | 08-05-2010 |
| 20100175812 | METHOD OF AND APPARATUS FOR MANUFACTURING A BELT MEMBER - The invention makes a rubber covering process for cords and processes of cutting and aligning cords a series of processes to enable simplification of installations and processes and manufactures a belt member of high quality, in which straightness and rubber adhesiveness of cords can be improved. As measures therefor, a belt member | 07-15-2010 |
| 20100170602 | PNEUMATIC TIRE AND METHOD OF CARRYING OUT HAND GROOVING ON THE SAME - An object of the present invention is to provide a pneumatic tire on a tread surface of which hand grooving can be carried out swiftly and easily, and a method of carrying out the hand grooving thereon. In order to achieve the object, a pneumatic tire comprises a tread surface formed with a plurality of grooves. The tread surface includes a guide line previously disposed as a reference for carrying out hand grooving. The guide line extends along at least one edge line of the grooves or a virtual extension line of at least one edge line of the grooves. | 07-08-2010 |
| 20100170601 | Pneumatic Tire - In a pneumatic tire, at least one groove wall face of at least one of the grooves includes a portion located at the tread surface side and a portion located at a groove bottom side with respect to the portion located at the tread surface side, the portion located at the tread surface side includes a plane face that forms a right angle or an obtuse angle with respect to the land portion surface, and a bottom face extending outward in a width direction of the groove from an end at the groove bottom side of the plane face, the portion located at the groove bottom side has an inclined face extending from the groove bottom in the width direction toward the outside of the bottom face, the inclined face and the bottom face form therebetween a recess portion recessed outward in the width direction of the groove. | 07-08-2010 |
| 20100162631 | PROCESS FOR MANUFACTURING POLISHING PAD - A method for manufacturing a polishing pad that has a high level of optical detection accuracy and is prevented from causing slurry leak from between the polishing region and the light-transmitting region includes preparing a cell-dispersed urethane composition by a mechanical foaming method; placing a light-transmitting region at a predetermined position on a face material or a belt conveyor, continuously discharging the cell-dispersed urethane composition onto a part of the face material or the belt conveyor where the light-transmitting region is not placed; placing another face material or belt conveyor on the discharged cell-dispersed urethane composition; curing the cell-dispersed urethane composition to form a polishing region including a polyurethane foam, so that a polishing sheet is prepared; applying a coating composition containing an aliphatic and/or alicyclic polyisocyanate to one side of the polishing sheet and curing the coating composition to form a water-impermeable film; and cutting the polishing sheet. | 07-01-2010 |
| 20100139831 | Pneumatic Tire - A pneumatic tire has a pair of bead portions, side wall portions, a tread portion, and a carcass ply rolled up in its end portion so as to pinch a bead filler. An outer surface of the side wall portion is provided with a concavo-convex region formed by arranging a lot of projecting lines extending in a tire circumferential direction in parallel in the tire diametrical direction, and an arranged density of the projecting lines becomes larger toward the outer side in the tire diametrical direction. An outer peripheral end of the concavo-convex region is positioned in the outer side than a position where an interface between a tread rubber and a side rubber is exposed, and an inner peripheral end of the concavo-convex region is positioned in an inner side than a leading end of the bead filler. | 06-10-2010 |
| 20100132865 | Non-Pneumatic Tire - The invention provides a non-pneumatic tire in which a fluctuation in a circumferential direction of tire rigidity is hard to be generated by a positional relationship between a spoke position and a center position of a ground surface, and a buckling of a ground portion between the spokes can be sufficiently suppressed. In a non-pneumatic tire T comprising a support structure body SS supporting a load from a vehicle, the support structure body SS includes an inner annular portion | 06-03-2010 |
| 20100132858 | Non-Pneumatic Tire - The invention provides a non-pneumatic tire which can improve a riding quality, a noise performance and the like while improving a durability, and can further sufficiently suppress a buckling of a ground portion between spokes, because a circumferential fluctuation of a tire rigidity is hard to be generated due to a positional relationship between a spoke position and a center position of the ground surface, and a strain can be dispersed into each of portions of a support structure body. In a non-pneumatic tire T comprising a support structure body SS supporting a load from a vehicle, the support structure body SS includes an inner annular portion | 06-03-2010 |
| 20100126649 | RADIAL TIRE AND METHOD OF MANUFACTURING THE SAME - A radial tire that has excellent weight balance and appearance quality and that can be produced at excellent productivity. These are achieved by forming a carcass layer ( | 05-27-2010 |
| 20100126646 | METHOD AND APPARATUS FOR PRODUCING TIRE INNER LINER MEMBERS, AND TIRE HAVING INNER LINER - A process for producing easily in high efficiency an inner liner having strip pieces obtained by cutting a ribbonlike rubber strip at given length arranged in parallel relationship in the across-the-width direction, aligned in the direction of tire circumference and bonded together. The process comprises spirally winding ribbonlike rubber strip ( | 05-27-2010 |
| 20100124641 | SEMICONDUCTIVE BELT AND METHOD FOR PRODUCING THE SAME - The present invention provides a semiconductive belt in which the generation of cracks is suppressed by enhancing conformability of a surface layer-composing coating film to the expansion and contraction of the belt while maintaining a practically required low friction coefficient, and a method for producing the same. Disclosed is a semiconductive belt including an elastic layer made of a semiconductive rubber and a surface layer, wherein the surface layer is composed of a resin layer containing a polytetrafluoroethylene resin fine powder, and a hardness-corresponding peak voltage value of the surface layer measured by a SPM (scanning probe microscope) method is −6.35V or less. | 05-20-2010 |
| 20100122761 | Heavy Load Pneumatic Tire - A belt layer of the heavy load pneumatic tire includes a first reinforcement belt, a first function belt, a second reinforcement belt, and a second function belt, and when defining, as viewed in the width direction of the tire, the length from the outer end of the first reinforcement belt to a tire equator as “W | 05-20-2010 |
| 20100122760 | Pneumatic Tire - A pneumatic tire has a rib sectionalized by main grooves extending along a tire circumferential direction in a center portion of a tread surface. Depressions are arranged in series in a center portion in a width direction of the rib so as to leave a space in the tire circumferential direction. The depressions extend in the tire circumferential direction and become wider from both end portions in a longitudinal direction toward a center portion. | 05-20-2010 |
| 20100120249 | PROCESS FOR PRODUCING POLYURETHANE FOAM - A method for manufacturing a polishing pad containing substantially spherical cells and having high thickness accuracy includes preparing a cell-dispersed urethane composition by a mechanical foaming method; continuously discharging the cell-dispersed urethane composition from a single discharge port to a substantially central portion in the width direction of a face material A, while feeding the face material A; laminating a face material B on the cell-dispersed urethane composition; then uniformly adjusting the thickness of the cell-dispersed urethane composition by thickness adjusting means; curing the cell-dispersed urethane composition with the thickness adjusted in the preceding step without applying any additional load to the composition so that a polishing sheet including a polyurethane foam is formed; and cutting the polishing sheet. | 05-13-2010 |
| 20100119636 | DIE FOR EXTRUSION FORMING HEAD - The invention is made to accelerate extrusion forming by reducing a friction between a forming rubber formed to cover a cord or formed to extrude and an inner wall face of a path at inside of a die as the die used for an extrusion forming head, a portion of an upstream portion of a rubber forming path ( | 05-13-2010 |
| 20100116401 | Pneumatic Tire - A pneumatic tire has an annular bead core, a bead filler, a carcass ply rolled up in such a manner as to pinch the bead core and the bead filler, and a white rubber arranged in an outer side of the carcass ply of the side wall portion. The white rubber has an inner peripheral end positioned in an outer side of the bead filler. The bead filler has a main body rubber portion running into the bead core from a leading end, and a soft rubber portion constructing a part of an outer surface of the bead filler and positioned in an inner side of the inner peripheral end of the white rubber. The soft rubber portion is harder than the white rubber and softer than the main body rubber portion. | 05-13-2010 |
| 20100116394 | Pneumatic Tire - A pneumatic tire has a tread pattern having shoulder blocks arranged in a tire circumferential direction in a shoulder portion of a tread surface, and slits to sectionalize the shoulder blocks. Slit wall surfaces in a trailing side and a leading side of the shoulder blocks are inclined to the slit side from both end portions in a width direction of the shoulder block toward a center portion in the width direction. A notch portion is provided in the center portion in the width direction in the slit wall surface in the trailing side or the leading side of the shoulder block. | 05-13-2010 |
| 20100116393 | Pneumatic Tire - A pneumatic tire has a tread pattern including a plurality of main grooves extending along a tire circumferential direction, and a shoulder land portion constructed by a rib or a block row formed in an outer side in a tire width direction of the main groove positioned in an outermost side. A circumferential sipe is provided in each of the shoulder land portions in both sides in the tire width direction. The number of the circumferential sipes provided in the shoulder land portion in a vehicle inner side is larger than the number of the circumferential sipes provided in the shoulder land portion in a vehicle outer side. | 05-13-2010 |
| 20100084068 | Pneumatic Tire - A pneumatic tire has a belt arranged in such a manner that cords are inclined with respect to a tire circumferential direction. A quarter portion is set to a portion which is between 50 to 80% of a belt width around a tire equator line, a center portion is set to a portion which is inside than the quarter portion, and a shoulder portion is set to a portion which is outside than the quarter portion. A relation θc>θs>θq is satisfied on the assumption that a cord angle in the quarter portion is set to θq, a cord angle in the center portion is set to θc, and a cord angle in the shoulder portion is set to θs, with regard to the cord angle of the belt with respect to the tire circumferential direction. | 04-08-2010 |
| 20100084062 | Pneumatic Tire - An object of the present invention is to provide a pneumatic tire capable of ensuring both of the ice braking performance and the ice turning performance while increasing the dry steering stability performance. To achieve the above object, a sipe extending in a width direction of the tire is formed a land portion, the sipe having: pluralities of wide portions each having an inclined plane that begins from the tread surface of a road surface, and terminates in the half way of a sipe wall while inclining so that a sipe width decreases toward the groove bottom of the sipe, and a pair of side faces connecting the inclined plane and the sipe wall therebetween, wherein the pluralities of wide portions are located alternately on both sipe walls along a longitudinal direction of the sipe. | 04-08-2010 |
| 20100078103 | Pneumatic Tire - A pneumatic tire that can be manufactured according to the conventional method without requiring special tire manufacturing steps and without needing addition of material members and production steps, and having excellent rolling resistance and wet properties, and having conductivity is to be provided. A pneumatic tire | 04-01-2010 |
| 20100078102 | Pneumatic Tire - A pneumatic tire that can be manufactured according to the conventional method without requiring special tire manufacturing steps and without needing addition of material members and production steps, and having excellent rolling resistance and wet properties, and having conductivity is to be provided. A pneumatic tire | 04-01-2010 |
| 20100071844 | BELT MEMBER PRODUCING METHOD - There is provided a belt member producing method including forming a strip piece | 03-25-2010 |
| 20100071838 | MANUFACTURING METHOD OF PNEUMATIC TIRE - A double-layer rubber ribbon in which at least one surface of an outer surface is configured by a sheet-like thin rubber ribbon is formed by co-extruding a different color rubber ribbon having a second color different from a side rubber of a first color and the thin rubber ribbon. Further, the double-layer rubber ribbon is wound for one or more turns along a tire circumferential direction in such a manner that the thin rubber ribbon is positioned close to a carcass side. Thereafter, the wound double-layer rubber ribbon is covered by a cover rubber having the first color, and the different color rubber ribbon is exposed by scraping off a portion corresponding to a letter or a line of the cover rubber. | 03-25-2010 |
| 20100051159 | PNEUMATIC TIRE - A pneumatic tire has a distinguishing mark is formed on a surface of a side wall portion. The pneumatic tire comprises a first protruding portion protruding along a profile of the mark and a second protruding portion protruding at a height which is lower than the first protruding portion, adjacent to an outer side of the first protruding portion. | 03-04-2010 |
| 20100048102 | POLISHING PAD - A polishing pad capable of maintaining a high level of dimensional stability upon moisture absorption or water absorption and providing high polishing rate includes a polishing layer of a polyurethane foam having fine cells, wherein the polyurethane foam includes a cured product of a reaction of (1) an isocyanate-terminated prepolymer (A) that includes an isocyanate monomer, a high molecular weight polyol (a), and a low molecular weight polyol, (2) an isocyanate-terminated prepolymer (B) that includes a polymerized diisocyanate and a polyethylene glycol with a number average molecular weight of 200 to 1,000, and (3) a chain extender. | 02-25-2010 |
| 20100043949 | METHOD OF BUILDING CARCASS BAND AND STITCHER APPARATUS - The invention enables to pressure-bond a carcass ply sheet pasted onto a rubber laminating member wound around a periphery of a building drum firmly along a recessed and projected shape of the rubber laminating member without producing a deformation or a warp of a carcass cord, by using a stitcher apparatus ( | 02-25-2010 |
| 20100029185 | POLISHING PAD AND A METHOD FOR MANUFACTURING THE SAME - An object of the invention is to provide a polishing pad excellent in durability and in the adhesiveness between a polishing layer and a base material layer. The first invention relates to a polishing pad comprising a polishing layer arranged on a base material layer, wherein the polishing layer comprises a thermosetting polyurethane foam having roughly spherical interconnected cells having an average cell diameter of 20 to 300 μm, the polyurethane foam comprises an isocyanate component and an active hydrogen-containing compound as starting components, and the active hydrogen-containing compound comprises 30 to 85% by weight of a high-molecular-weight polyol having 2 to 4 functional groups and a hydroxyl value of 20 to 100 mg KOH/g. | 02-04-2010 |
| 20100029182 | POLISHING PAD - A polishing pad of excellent durability has a polishing layer is arranged on a base material layer, and the polishing layer comprises a thermosetting polyurethane foam having roughly spherical interconnected cells with an average cell diameter of 35 to 300 μm. | 02-04-2010 |
| 20100024986 | PERFORATING APPARATUS FOR TIRE CONSTITUENT MEMBER - The invention provides a perforating apparatus, which can efficiently form air vent holes in necessary locations on a tire constituent member and facilitates setting and changes of perforated positions to be able to readily accommodate for a change in size of the tire constituent member, and as perforating means | 02-04-2010 |
| 20100018619 | Pneumatic Tire - A pneumatic tire has a tread surface is provided with a groove portion, and a land portion sectioned by the groove portion. In wall surfaces facing the groove portion in the land portion, an inside wall surface facing an inner side at a time of being installed to a vehicle is formed by a zigzag surface, and an outside wall surface facing an outer side at a time of being installed to the vehicle is formed by a flat surface. | 01-28-2010 |
| 20100015893 | POLISHING PAD - An object of the invention is to provide a polishing pad having excellent planarization performance and wear resistance and to provide a method for manufacture thereof. The invention is directed to a polishing pad including a polishing layer including a polyurethane foam having fine cells, wherein the polyurethane foam is a cured product of a reaction of (1) an isocyanate-terminated prepolymer (A) that is capable of reacting with 4,4′-methylenebis(o-chloroaniline) to form a non-foamed polyurethane having a tan δ peak temperature of 100° C. or more, (2) an isocyanate-terminated prepolymer (B) that is capable of reacting with 4,4′-methylenebis(o-chloroaniline) to form a non-foamed polyurethane having a tan δ peak temperature of 40° C. or less, and (3) 4,4′-methylenebis(o-chloroaniline), and the isocyanate-terminated prepolymers (A) and (B) are mixed in an (A)/(B) ratio of 50/50 to 90/10 (by wt %). | 01-21-2010 |
| 20100012259 | PROCESS FOR PRODUCING TIRE - A process for producing a tire, in which a tire improved in qualities, such as uniformity and weight balance, is produced through inhibiting of rubber lumping under the influence of gravitational force at the time of initiation of rubber discharge. There is provided a process for producing a tire, comprising, while rotating forming drum (B), discharging strip rubber (S) of given sectional configuration by means of injection molding machine (A) and sequentially winding the discharged strip rubber (S) around the forming drum (B) to thereby attain forming of a tire configuration, wherein the strip rubber (S) discharged from the injection molding machine (A) is dropped in a vertical downward direction and wound around the surface of the forming drum (B), and wherein the position of dropping of the strip rubber (S) is set so as to fall within the range of rotation upward 45° to rotation downward 90° with respect to, as a baseline, the segment binding the uppermost point and the center of rotation of the forming drum (B). | 01-21-2010 |
| 20100012242 | PNEUMATIC TIRE - An object is to provide a pneumatic tire which can exhibit a static elimination function in an ensured fashion and be fabricated easily. As a means therefor, there is provided a pneumatic tire in which a conductive layer | 01-21-2010 |
| 20100009611 | METHOD FOR MANUFACTURING A POLISHING PAD - A method for inexpensively and easily manufacturing a polishing pad of excellent durability and polishing speed stability includes preparing a cell dispersed urethane composition by mechanical foaming, applying the cell dispersed urethane composition onto a base material layer, forming a polyurethane foamed layer having roughly spherical interconnected cells by curing the cell dispersed urethane composition, and regulating the thickness of the polyurethane foamed layer uniformly. | 01-14-2010 |
| 20100003896 | POLISHING PAD - A polishing pad capable of maintaining a high level of dimensional stability during absorption of moisture or water includes a polishing layer including a polyurethane foam having fine cells, wherein the polyurethane foam includes a cured product of a reaction of an isocyanate-terminated prepolymer (A), a polymerized diisocyanate, and a chain extender, and the isocyanate-terminated prepolymer (A) includes an isocyanate monomer, a high molecular weight polyol (a), and a low molecular weight polyol. A method for manufacturing such a polishing pad includes mixing a first component containing an isocyanate-terminated prepolymer with a second component containing a chain extender and curing the mixture to form a polyurethane foam. The pad so made is used in the manufacture of semiconductor devices. | 01-07-2010 |
| 20100000685 | DRIVING APPARATUS OF BUILDING DRUM FOR TIRE - The invention is for enabling one piece of rotation driving means | 01-07-2010 |
| 20090320989 | METHOD OF AND APPARATUS FOR WINDING A LENGTHY RUBBER MATERIAL - In the case where a lengthy rubber material (R) is wound on a winding roll ( | 12-31-2009 |
| 20090320985 | RUBBER STRIP MATERIAL - When forming a rubber member which is made up of a combination of a plurality of rubber compounds by winding spirally a ribbon-shaped unvulcanized rubber strip material in an overlapping fashion, the number of times of winding is reduced so as to shorten a fabrication cycle time of the rubber member to thereby increase the productivity thereof. As a means therefore, a rubber strip material whose cross section is divided into two or more regions which are made up of different rubber compounds is wound spirally on to a drum in an overlapping fashion so as to build a green tire or a tire rubber member. | 12-31-2009 |
| 20090314436 | BEAD SUPPLY SYSTEM IN TIRE BUILDING PROCESS - The invention provides a bead supply system which stocks annular beads without bringing the beads into contact with each other and supplies the beads to a building machine in steps where bead setting and turning up are carried out in tire building and includes a bead stocking unit ( | 12-24-2009 |
| 20090314401 | METHOD OF FABRICATING PNEUMATIC TIRE AND PNEUMATIC TIRE - An object is to reduce a cycle time for fabricating a low rolling resistance pneumatic tire and to provide the same pneumatic tire. As a means therefor, in building a tread portion by winding spirally a rubber strip material whose cross section is divided into a first region made of a conductive rubber and a second region made of a non-conductive rubber in a tire circumferential direction in a partially overlapping fashion by the use of an extruding machine which extrudes continuously the rubber strip material, an area ratio of the first region relative to the cross section of the rubber strip material is made to change in a tire width direction. | 12-24-2009 |
| 20090301640 | METHOD AND APPARATUS OF ADHERING BELT EDGE TAPE - According to the present invention, in adhering a belt edge tape ( | 12-10-2009 |
| 20090301639 | METHOD AND APPARATUS OF FABRICATING CARCASS MEMBER FOR TIRE - The invention can efficiently provide a carcass member constituting a carcass layer of a radial tire, particularly, a carcass member a direction of a cord of which constitutes an angle of substantially 90° relative to a tire circumferential direction, and can easily adjust a length in accordance with a size, one piece of a cord (C) is continuously passed through a rubber coating die ( | 12-10-2009 |
| 20090289399 | VIBRATION-ISOLATING BUSH - An intermediate cylinder | 11-26-2009 |
| 20090266476 | METHOD AND APPARATUS OF JOINTING CORD FABRIC AND JOINTING HOLDER IN CALENDER LINE - The invention enables easy jointing of cord fabric performed when cord fabric (F) for topping is alternately drawn from two supply positions (P | 10-29-2009 |
| 20090266474 | METHOD OF AND APPARATUS FOR MANUFACTURING A TIRE BEAD - A filler rubber being triangular-shaped in cross section can be held in an upright posture to be stuck to an outer peripheral surface of a bead core and a leading end and a trailing end can be butted against each other to be joined without the generation of crack. A filler rubber (F) is held in an upright posture to be wound around an outer peripheral surface of a bead core (C) supported by a rotary support body ( | 10-29-2009 |
| 20090266459 | Pneumatic Tire - An object of the present invention is to provide a pneumatic tire having low rolling resistance and higher resistance against irregular wear. To achieve the above object, a pneumatic tire includes a tread portion comprising a plurality of block arrays each of which is constituted of a plurality of blocks that are partitioned by a plurality of main grooves extending in a circumferential direction of the tire and a plurality of lateral grooves crossing the main grooves, wherein at least one of the block arrays is provided with a thin rib that continuously extends in the circumferential direction of the tire in a central area of the block array as viewed in a width direction of the tire and is partitioned by two sipes extending in the circumferential direction of the tire, the depth of the sipes extending in the circumferential direction of the tire is 0.7 times or less of the depth of the lateral grooves. | 10-29-2009 |
| 20090266456 | Pneumatic Tire - A pneumatic tire that can be manufactured according to the conventional method without requiring special tire manufacturing steps and without needing addition of material members and production steps, has excellent rolling resistance and wet properties, and has conductivity. A pneumatic tire | 10-29-2009 |
| 20090261509 | VENT PLUG FOR A TIRE VULCANIZATION MOLD, TIRE VULCANIZATION MOLD AND METHOD FOR MANUFACTURING A PNEUMATIC TIRE USING THE TIRE VULCANIZATION MOLD - The invention relates to a vent plug for a tire vulcanization mold used for a vent hole of the mold, the tire vulcanization mold, and a manufacturing method for the tire using the mold. The vent plug includes a plug holder with a hollow ventilation portion and a plug head within the ventilation portion. The plug holder includes a tapered seat portion, an inside diameter of which becomes smaller toward a mold rear side, and a cylinder portion located at the mold rear side of the seat portion. The plug head includes a tapered head portion, an outer diameter of which becomes smaller toward the mold rear side, a base body portion located at the mold rear side of the head portion, and a slit portion communicating with the ventilation portion from an upper end face of the plug head. | 10-22-2009 |
| 20090253353 | POLISHING PAD - It is an object of the invention to provide a polishing pad capable of high precision optical detection of an endpoint during polishing in progress and prevention of slurry leakage from between a polishing region and a light-transmitting region during the use thereof even after the polishing pad has been used for a long period. It is a second object of the invention to provide a polishing pad capable of suppression of deterioration of polishing characteristics (such as in-plane uniformity) and generation of scratches due to a difference in behavior of a polishing region and a light-transmitting region during polishing. It is a third object of the invention to provide a polishing pad having a polishing region and a light-transmitting region with a concentration of a specific metal equal to or lower than a specific value (threshold value). | 10-08-2009 |
| 20090249598 | Cord Aligning Method In Calender Line And Apparatus Therefor - The invention is aimed at shortening time and reducing labor in a work of fitting a multiplicity of cords, respectively, into grooves of a grooved press roll and of a grooved comb roll to align the same in a calender apparatus, in which rubber is topped on the multiplicity of cords as aligned, in an aligning work, the multiplicity of cords are first fitted into grooves on an upper surface side of the comb roll to be aligned, the press roll is then displaced to an alignment transfer position from a standby position close to a topping roll to be opposed to the upper surface side of the comb roll to thereby transfer an aligned state of the cords fitted into the grooves of the comb roll to the press roll as it is to fit the respective cords into grooves of the press roll and to displace the press roll to the standby position while maintaining the fitted state, to set the cords in an aligned state. | 10-08-2009 |
| 20090249597 | METHOD AND APPARATUS OF REMOVING WEFT OF CORD FABRIC FOR TOPPING SHEET - The invention can firmly and easily remove a finely divided weft piece without leaving the weft piece by constituting a method and an apparatus of removing weft from a cord fabric for a topping sheet in a calender line for topping rubber on a number of pieces of aligned cords by a calender roll. In the midst of transferring a cord fabric (F) transferred to a calender apparatus, weft is finely divided by passing the cord fabric (F) through weft dividing means, thereafter, a plurality of blades ( | 10-08-2009 |
| 20090242090 | Pneumatic Tire - A pneumatic tire has main grooves | 10-01-2009 |
| 20090229752 | BAND DETACHING METHOD IN BAND BUILDING DRUM AND BAND BUILDING DRUM - The invention enables a built band (B) in a cylindrical shape to be easily and surely detached by peeling off the band (B) from being brought into close contact with a drum peripheral face in an expandable and contractable band building drum (D) constituted by two kinds of pluralities of segments ( | 09-17-2009 |
| 20090188608 | METHOD FOR MANUFACTURING TIRE - This invention provides a method for manufacturing a tire in which the time necessary for the manufacture can be reduced without deteriorating uniformity in manufacturing the tire by a strip-build process. The method for manufacturing the tire comprises discharging a strip rubber (S) having a predetermined sectional shape by rubber discharging devices (A | 07-30-2009 |
| 20090188607 | TIRE BUILDING METHOD AND RUBBER STRIP BONDING APPARATUS - The invention can surely accomplish lamination without the generation of voids in building a tire constructed to comprise a plurality of rubber members for a tire when a ribbon-shaped rubber strip (R) is spirally wound and laminated, and uses holding rolls ( | 07-30-2009 |
| 20090188606 | METHOD AND APPARATUS OF ADHERING AND BUILDING BELT MEMBER - The present invention can transfer a belt member on a supply conveyor onto a building drum from an inclined distal end portion while holding on both side edge portions in the width direction thereof and can efficiently adhere the belt member according to the rotation of the building drum. As a means for such building, using a supply conveyor ( | 07-30-2009 |
| 20090184192 | METHOD AND APPARATUS OF CONNECTING STRIP-LIKE MATERIAL - The invention enables to automatically connect a terminal end portion of a strip-like material drawn out from a winding member constituting an apparatus of supplying the strip-like material and a start end portion of a succeeding strip-like material, at supply support portions | 07-23-2009 |
| 20090183814 | Pneumatic Tire - W is the width of the belt layer | 07-23-2009 |
| 20090173419 | PNEUMATIC TIRE AND METHOD FOR MANUFACTURING THE SAME - A pneumatic tire according to the invention includes a cap rubber | 07-09-2009 |
| 20090165911 | PNEUMATIC TIRE - An object of the present invention is to provide a pneumatic tire capable of reducing the narrowing of the openings of sipes and increasing ground-contact performance by ensuring the edge effect and the water removal effect thereby increasing on-ice braking performance while providing a satisfactory durability to a sipe-forming blade mounted on the tire manufacturing die. To achieve the above object, each of the sipes formed in a land portion of a tread surface which a pneumatic tire comprises has: a first sipe portion in which a first wide portion having a bottom portion thereof is formed, a second sipe portion in which a second wide portion having a bottom portion thereof and extending in a depth direction from a depth position closer to the tread surface side than the bottom portion of the first wide portion is formed at the side opposite to the first wide portion as viewed in a sipe width direction, the second sipe portion being positioned on the side of the bottom portion of the first sipe portion, and a third sipe portion in which a third wide portion having a bottom portion thereof and extending in a depth direction from a depth position closer to the tread surface side than the bottom portion of the second wide portion is formed at the same side as the first wide portion as viewed in a sipe width direction, the third sipe portion being positioned on the side of the bottom portion of the second sipe portion. | 07-02-2009 |
| 20090159166 | Pneumatic Tire - Protrusions | 06-25-2009 |
| 20090151839 | Rubber Composition For Adhering Steel Cord - A rubber composition for adhering a steel cord that improves wet heat-resistant adhesioness, particularly heat-resistant adhesioness, by preventing adhesion deterioration due to heat, as well as initial adhesioness between a steel cord and a rubber, is disclosed. The rubber composition comprising 100 parts by weight of a diene rubber component and from 0.1 to 30 parts by weight of composite graphite particles containing boron, obtained by heating and graphitizing carbon black together with boron or a compound containing boron. | 06-18-2009 |
| 20090145532 | Method of Manufacturing A Carcass Ply - A large-width ply base material | 06-11-2009 |
| 20090145529 | Pneumatic Tire - In a tire, a phase difference L | 06-11-2009 |
| 20090137718 | PNEUMATIC TIRE - A pneumatic tire having excellent balance between low fuel consumption and grip property and capability of suppressing crack generation in a tread groove bottom while maintaining abrasion resistance is provided. The pneumatic tire has a tread formed from a rubber composition includes per parts by weight of a diene rubber, from 30 to 150 parts by weight of a reinforcing filler comprising at least one of carbon black and silica, and from 5 to 40 parts by weight of a terminally-amine modified liquid polybutadiene. | 05-28-2009 |
| 20090137701 | Pneumatic Tire - A pneumatic tire having excellent balance between low fuel consumption and grip property and capability of suppressing crack generation in a tread groove bottom while maintaining abrasion resistance is provided. The pneumatic tire has a tread formed from a rubber composition includes per 100 parts by weight of a diene rubber containing a styrene-butadiene rubber, from 30 to 150 parts by weight of a reinforcing filler containing from 20 to 100 parts by weight of silica, and from 5 to 40 parts by weight of a carboxyl-terminally modified liquid polybutadiene, and further includes a silane coupling agent in an amount of from to 25 parts by weight per 100 parts by weight of the silica. | 05-28-2009 |
| 20090134556 | LIQUID ENCLOSING TYPE VIBRATION ISOLATING APPARATUS - To provide a liquid enclosing type vibration isolating apparatus capable of achieving two resonance characteristics by one orifice path, in a liquid enclosing type vibration isolating apparatus including a main liquid chamber a portion of a chamber wall of which is constituted by a vibration isolating base member, an auxiliary liquid chamber a portion of a chamber wall of which is constituted by a first diaphragm | 05-28-2009 |
| 20090133808 | Tire Building Method and Building Facility - A tire building method and a tire building facility according to the invention attains reduction of an installation space of the tire building facility and substantially equal building cycles for respective building stages to increase building efficiency and facilitate arrangement switching. For attaining these, a step for building a cylindrical carcass band, a subsequent step for building a cylindrical green case, a step for building a cylindrical belt and tread band, a step for combining the green case and the belt and tread band to build the final shape are divided as first through fourth building stages (S | 05-28-2009 |
| 20090133791 | METHOD OF MANUFACTURING PNEUMATIC TIRE AND MANUFACTURING PNEUMATIC TIRE - An object of the present invention is to provide a manufacturing method of a pneumatic tire capable of appropriately maintaining electrical conductivity performance and satisfactorily exerting improvement effect obtained by using a tread rubber blended with silica at a high ratio, and to provide such a pneumatic tire. To achieve the above object, the method of manufacturing a pneumatic tire according to the present invention comprises a step of forming an electrically non-conductive tread rubber that constitutes an outer periphery portion of the tread and a step of forming an electrically conductive layer that extends along the circumferential direction of the tire formed on the tread surface while changing the position in a width direction of the tire so as to alternately pass through a first position and a second position, and a step of forming the outer end of the sidewall rubber as viewed in a tire-diameter direction disposed on an imaginary extension line or at a point that is outer than the imaginary extension line as viewed in a tire-diameter direction, the imaginary extension line extending outwardly from a point of 15% depth of wear limit depth in a shoulder portion along the tread surface in a width direction of the tire, as well as at a point that is located at an outer side than the ground contact end as viewed in a width direction of the tire. | 05-28-2009 |
| 20090126846 | Tire And Method Of Building Tire - A tire, in which excessively overlapping portions can be made small and excessively overlapping portions on a winding beginning side and on a winding terminating side are not present in the same cross sectional position in a width direction and which is good in tire weight balance and can improve RFV. In the case where a rubber strip material is wound in a first round on a winding beginning side without being inclined in a tire circumferential direction, wound in a second round and after in a state of being inclined to the tire circumferential direction so that feed of a predetermined pitch in a tire width direction is given every round in a part of a region in the tire circumferential direction, wound in the remaining part of the region without being inclined, and wound in a final round on a winding terminating side without being inclined in the tire circumferential direction, phases of the rubber strip material in the second round and after in an inclined region every round are successively shifted in a direction, in which inclination begins a little early every round. | 05-21-2009 |
| 20090126844 | Pneumatic Tire - A pneumatic tire that can maintain processability of a rubber and tire performance such as rolling resistance or a wet performance, overcome the problem of non-conductivity by a tread rubber of silica formulation or the like, and sustain conductive performance of a tire over a long period of time is provided. The pneumatic tire includes a non-conductive tread, and a side wall, a cement rubber being applied to a tire outer surface of from a shoulder of the tread to a rim strip to form a continuous coating film, wherein the cement rubber includes a rubber composition comprising 100 parts by weight of a rubber component containing from 50 to 100 parts by weight of a diene rubber having a weight average molecular weight (Mw) of from 250,000 to 450,000, and from 10 to 30 parts by weight of carbon black having a nitrogen adsorption specific surface area (N | 05-21-2009 |
| 20090124738 | Rubber Composition And Pneumatic Tire - A rubber composition that can improve rolling resistance of a tire without impairing other performances such as processability or wet performance, and a pneumatic tire using the same are provided. The rubber composition includes a diene rubber as a rubber component, and clay treated with a fatty acid. | 05-14-2009 |
| 20090124724 | Rubber Composition And Pneumatic Tire - A rubber composition that can improve rolling resistance of a tire without impairing other performances such as processability or wet performance, and a pneumatic tire using the same are provided. The rubber composition includes a diene rubber as a rubber component, and clay treated with a lignin sulfonate. | 05-14-2009 |
| 20090120561 | TIRE FORMING MOLD AND TIRE MANUFACTURING METHOD - A tire forming mold has a side mold portion and an annular mold portion fitted to an outer side in a tire diametrical direction of the side mold portion at a time of clamping the mold, wherein the annular mold portion is constructed by a combination of sectors which are divided in a tire circumferential direction, and each of the sectors is capable of displacing in the tire diametrical direction, wherein a fitting diameter of the annular mold portion is set to be equal to or more than a fitting diameter of the pair of side mold portions, an annular rubber introduction groove extending along the tire circumferential direction is provided at least in one of a fitting surface of the annular mold portion and a fitting surface of the pair of side mold portions, and a shallow groove portion is formed in an introduction port of the rubber introduction groove. | 05-14-2009 |
| 20090120178 | TIRE WEAR TEST METHOD - A method of tire wear test capable of testing tire wear precisely by appropriately setting running modes in a simple manner. | 05-14-2009 |
| 20090114321 | Pneumatic Tire - A pneumatic tire that can maintain processability and tire performance such as rolling resistance or a wet performance of a tire, overcome the problem of non-conductivity by a tread rubber of silica formulation or the like, and sustain conductive performance of a tire over a long period of time is provided. The pneumatic tire includes a non-conductive tread and a side wall, a rubber member comprising a conductive rubber, penetrating a tread rubber from the outer surface of a cap tread being provided to form a continuous conducting path to a rim via a cap ply, a belt, a carcass and a rim strip, wherein the rubber member includes a rubber composition comprising 100 parts by weight of a rubber component containing from 50 to 100 parts by weight of a diene rubber having a weight average molecular weight (Mw) of from 250,000 to 450,000, and from 10 to 30 parts by weight of carbon black having a nitrogen adsorption specific surface area (N | 05-07-2009 |
| 20090107598 | Rubber Composition For Tire Base Tread - The rubber composition for a tire base tread includes a rubber component containing not less than 15 % by weight of a terminal-modified diene rubber having a number average molecular weight prior to modification of 150000 to 400000, a filler, and a compound (vulcanizing agent) represented by the following general formula (1) in an amount of 0.5 to 5 parts by weight based on 100 parts by weight of the rubber component: | 04-30-2009 |
| 20090107595 | Pneumatic Tire - A pneumatic tire that can maintain processability and tire performance such as rolling resistance or a wet performance, overcome the problem of non-conductivity by a tread rubber of silica formulation or the like, and sustain conductive performance of a tire over a long period of time is provided. The pneumatic tire includes a non-conductive tread, and a continuous conducting path comprising a conductive rim strip and a side wall, a cement rubber being applied to a ground region of the tread and a contact region between the tread and the side wall to form a continuous coating film, wherein the cement rubber includes a rubber composition comprising 100 parts by weight of a rubber component containing from 50 to 100 parts by weight of a diene rubber having a weight average molecular weight (Mw) of from 250,000 to 450,000, and from 10 to 30 parts by weight of carbon black having a nitrogen adsorption specific surface area (N | 04-30-2009 |
| 20090105403 | Rubber Composition For Tire Tread - A rubber composition for a tire tread which improves grip performance on dry pavement and wet pavement and driveability is provided. The rubber composition includes 100 parts by weight of a rubber component comprising from 50 to 95 parts by weight of a copolymer rubber having a glass transition point of −40° C. or higher obtained by copolymerization of 1,3-butadiene with styrene using an organic lithium compound as an initiator, from 5 to 20 parts by weight of an epoxidized natural rubber having a degree of epoxidation of from 5 to 60% by weight, and from 0 to 45 parts by weight of other diene rubber; from 20 to 100 parts by weight of silica; and from 0 to 100 parts by weight of carbon black, the total amount of silica and carbon black being from 70 to 150 parts by weight, and further includes a silane coupling agent in an amount of from 2 to 25 parts by weight per 100 parts by weight of the silica. | 04-23-2009 |
| 20090105398 | Rubber Composition For Pneumatic Tire - A rubber composition for a pneumatic tire which improves workability of rubber processing and heat generation characteristics, and further improves driveability on dry pavement while maintaining grip performance is provided. The rubber composition for a pneumatic tire includes a rubber component comprising a copolymer rubber having a glass transition point of −40° C. or higher obtained by copolymerization of 1,3-butadiene with styrene using an organic lithium compound as an initiator, alone or a blend of 50% by weight or more of the copolymer rubber and 50% by weight or less of other diene rubber, silica and a silane coupling agent, and further includes a polymer gel which is diene polymer particles having a toluene swelling index Qi of less than 16 and a glass transition point of from 20 to 80° C. in an amount of from 1 to 30 parts by weight per 100 parts by weight of the rubber component. | 04-23-2009 |
| 20090104850 | POLISHING PAD - An object of the present invention is to provide a polishing pad excellent in polishing rate and superior in longevity without generating center slow. Another object of the present invention is to provide a method of manufacturing a semiconductor device with the polishing pad. Disclosed is a polishing pad having a polishing layer consisting of a polyurethane foam having fine cells, wherein a high-molecular-weight polyol component that is a starting component of the polyurethane foam contains a hydrophobic high-molecular-weight polyol A having a number-average molecular weight of 550 to 800 and a hydrophobic high-molecular-weight polyol B having a number-average molecular weight of 950 to 1300 in an A/B ratio of from 10/90 to 50/50 by weight. | 04-23-2009 |
| 20090101258 | Pneumatic Tire - A pneumatic tire using a rubber composition that can reduce rolling resistance of a tire and promote low fuel consumption in a base rubber is provided. The pneumatic tire includes a tread rubber which comprises a cap rubber provided at a road surface side and a base rubber provided at its inner periphery side, wherein the base rubber comprises a rubber composition which comprises 100 parts by weight of a diene rubber component containing from 15 to 50 parts by weight of a butadiene rubber or a styrene-butadiene rubber, its molecular end being modified with a modifier, polymerized using an organic lithium catalyst, and from 20 to 50 parts by weight of carbon black having a nitrogen adsorption specific surface area (N | 04-23-2009 |
| 20090099281 | Rubber Composition And Pneumatic Tire - A rubber composition that can improve rolling resistance of tires without impairing running performances such as braking performance, driveability (grip performance), abrasion resistance and the like, and a pneumatic tire using the same are provided. The rubber composition includes a diene rubber as a rubber component, and lignin derivatives. | 04-16-2009 |
| 20090095427 | MANUFACTURING METHOD OF TIRE FORMING MOLD AND TIRE FORMING MOLD - A manufacturing method of a tire forming mold in which an annular mold portion is constituted by a combination of sectors includes a step of manufacturing a circular arc shaped inner segment provided with a concavo-convex shape, a step of dividing the inner segment by a non-flat surface division so as to obtain a first segment piece and a second segment piece, and a step of incorporating the first segment piece into an inner peripheral side of a back segment of one sector out of a pair of sectors which are adjacent to each other in the tire circumferential direction, incorporating the second segment piece into an inner peripheral side of a back segment of the other sector, and arranging the non-flat surface divided surface in an end surface of the sector. | 04-16-2009 |
| 20090095065 | GREEN TIRE INSPECTION APPARATUS AND METHOD THEREFOR - An improvement is achieved in productivity of a tire by preventing an unacceptably molded green tire, which is produced in a molding process, from flowing to a vulcanizing process. Measures therefor comprise putting an unvulcanized green tire on a mount surface of a mount stage, sticking an information label to a side wall of the green tire with a label sticking device arranged below a through-hole formed in a position, which corresponds to an inside of a bead body of the green tire, on the mount surface, and measuring a weight of the green tire with a gravimeter, which supports the mount stage. | 04-16-2009 |
| 20090093202 | METHOD FOR MANUFACTURING POLISHING PAD - A method for manufacturing a polishing pad, which may be laminated, with a small number of manufacturing steps, high productivity and no peeling between a polishing layer and a cushion layer includes preparing a cell-dispersed urethane composition by a mechanical foaming method; continuously discharging the cell-dispersed urethane composition onto a face material, while feeding the face material; laminating another face material on the cell-dispersed urethane composition; curing the cell-dispersed urethane composition, while controlling its thickness to be uniform, so that a polishing layer including a polyurethane foam is formed; cutting the polishing layer parallel to the face into two pieces so that two long polishing layers each including the polishing layer and the face material are simultaneously formed; and cutting the long polishing layers to produce the polishing pad. | 04-09-2009 |
| 20090088496 | METHOD FOR PRODUCING RUBBER-FILLER COMPOSITE - A rubber-filler composite exhibiting low heat build-up, fatigue resistance and heat aging resistance equal to those of a concentrated natural rubber latex, despite using a field latex of a natural rubber and omitting a concentration step is disclosed. The rubber-filler composite is obtained by jetting a field latex of a natural rubber in a form of a high-speed flow having a flow rate of 500 m/sec or more into a mixing chamber while supplying a filler slurry containing a filler to the mixing chamber, thereby separating and removing protein in the field latex from a rubber component and at the same time, mixing the field latex and the filler slurry. | 04-02-2009 |
| 20090078350 | PNEUMATIC TIRE - A pneumatic tire structured such that a sipe is formed in a land portion of a tread surface. The sipe has a wide portion extending along a longitudinal direction at least at one position in a depth direction. The wide portion is structured by alternately arranging concave portions which are smaller in the longitudinal direction and the depth direction than the sipe, in both sides of a sipe wall surface along the longitudinal direction of the sipe. | 03-26-2009 |
| 20090078348 | Rubber Composition For Tire Cap Tread - The rubber composition for a tire cap tread includes a rubber component containing not less than 15% by weight of a terminal-modified diene rubber having a number average molecular weight prior to modification of 150000 to 400000, a filler, and a compound (vulcanizing agent) represented by the following general formula (1) in an amount of 0.5 to 5 parts by weight based on 100 parts by weight of the rubber component: | 03-26-2009 |
| 20090075568 | POLISHING PAD, METHOD OF PRODUCING THE SAME AND METHOD OF PRODUCING SEMICONDUCTOR DEVICE BY USING THE SAME - The present invention provides a polishing pad used for planarizing inter layer dielectrics and the like by CMP (chemical mechanical polishing) in the manufacturing process of a semiconductor device, a method of producing the polishing pad and a method of producing a semiconductor device by using the polishing pad. The present invention relates to a semiconductor wafer polishing pad having grooves in a polishing surface and formed from a foamed polyurethane, wherein a processed surface of the groove comprising a side surface and a bottom surface has a surface roughness Ra of not more than 10. | 03-19-2009 |
| 20090071586 | Rubber Composition And Pneumatic Tire - A rubber composition is provided that is capable of improving both the road/tire noise and the rolling resistance simultaneously, and is suitable for a side wall. The rubber composition contains a rubber component containing from 20 to 80 parts by weight of at least one of natural rubber and isoprene rubber and from 80 to 20 parts by weight of butadiene rubber, a reinforcing agent, a plasticizer, an additive and a crosslinking agent, and having a dynamic elastic modulus (E′) and a loss factor (tan δ), which are measured according to JIS K6394 at an initial strain of 5%, a dynamic strain of 5%, a frequency of 10 Hz and a temperature of 35° C., satisfying relationships, E′≧4 and tan δ/E′≦0.03. The butadiene rubber preferably contains at least one selected from the group consisting of (A) a coordination polymer of butadiene with a transition metal compound or a metallocene complex of a transition metal compound as a catalyst, (B) an anionic polymer of butadiene with a lithium compound as a catalyst, and (C) butadiene rubber containing syndiotactic 1,2-polybutadiene crystals. | 03-19-2009 |
| 20090062455 | Rubber Composition For Tire And Its Producing Method - A rubber composition for tire, which combines low heat build-up properties and breakage property, reduces fuel consumption of a tire, and has excellent good processability is provided. The rubber composition for tire is obtained by blending sulfur and caprolactam disulfide with a diene rubber component to obtain a pre-mixture which does not contain a reinforcing filler and a vulcanization accelerator, and blending and mixing a reinforcing filler and a vulcanization accelerator with the pre-mixture in a post-mixing step. | 03-05-2009 |
| 20090062433 | Rubber Composition And Pneumatic Tire - A rubber composition is provided that attains both low heat generating property and high reinforcement property simultaneously at high levels, is capable of attaining low fuel consumption through the tire, is excellent in durability, and is good in workability and surface property. The rubber composition contains 100 parts by weight of a diene rubber component, from 0.5 to 50 parts by weight of bagasse charcoal having a BET specific surface area of from 10 to 300 m | 03-05-2009 |
| 20090050252 | METHOD OF MANUFACTURING RUN-FLAT TIRE - A method of manufacturing a run-flat the capable of manufacturing a run-flat tire with excellent uniformity due to its less occurrence of eccentricity than in conventional methods by simple facility and steps. The method comprises a step for disposing an inner liner rubber ( | 02-26-2009 |
| 20090050248 | PNEUMATIC TIRE - A sipe formed in a block of a tread surface is provided with a first sipe portion having a first wide portion, a second sipe portion having a second wide portion in a different side from the first wide portion in a sipe width direction and positioned close to a sipe bottom portion side of the first sipe portion so as to become wider than the first sipe portion, and a third sipe portion having a third wide portion in the same side as the first wide portion in the sipe width direction and positioned close to a sipe bottom portion side of the second sipe portion so as to become wider than the second sipe portion. | 02-26-2009 |
| 20090043014 | RUBBER COMPOSITION FOR TIRE AND ITS PRODUCING METHOD - A rubber composition for tire, which combines low heat build-up properties and breakage property in high level, reduces fuel consumption of a tire, and has excellent durability and good processability is provided. The rubber composition for tire is obtained by kneading a diene rubber component, sulfur and a pyrithione metal salt to obtain a rubber mixture, and adding and kneading a vulcanization accelerator in a post-mixing step using the rubber mixture. The pyrithione metal salt can use a compound represented by the following formula (1): | 02-12-2009 |
| 20090038722 | Manufacturing Method of Pneumatic Tire and Pneumatic Tire - A tread forming step of forming a non-conductive tread rubber includes a first step of forming the tread rubber in such a manner that a shoulder portion becomes smaller in diameter than a finish cross sectional shape, a second step of setting up a conductive layer extending along a tire circumferential direction while alternately passing through a first position which is exposed to a tread surface of the shoulder portion, and a second position which comes into contact with a sidewall rubber in an outer side in a tire width direction than the first position, and a third step forming a finish cross sectional shape of the tread rubber by adding a non-conductive rubber to the shoulder portion of the tread rubber. | 02-12-2009 |
| 20090036596 | METHOD FOR PRODUCING RUBBER-FILLER COMPOSITE - In a rubber-filler composite, the filler is uniformly finely dispersed, thereby improving low heat build-up, fatigue resistance and processability of a rubber composition. The rubber-filler composite is obtained by irradiating a filler slurry containing a filler such as carbon black or silica with high amplitude ultrasonic waves having amplitude of 80 μm or more to finely disperse the filler in the slurry, and mixing the dispersion-treated filler slurry with a concentrated natural rubber latex while conducting irradiation with high amplitude ultrasonic waves having amplitude of 80 μm or more, followed by coagulating and drying. | 02-05-2009 |
| 20090035404 | Tire Mold And Pneumatic Tire Using The Same - In a tire mold | 02-05-2009 |
| 20090032181 | Tire Belt Manufacturing Method And Apparatus - In obliquely cutting a belt band-shaped material (B) to a predetermined length and joining belt material pieces (b) as cut to fabricate a belt member (B | 02-05-2009 |
| 20090032175 | Tire Building Method And Rotational Transfer Device For Drum Transfer Support Base In Tire Building Process - The invention can perform building in a process for building a carcass band or a belt/tread band of a tire, in which two drum transfer support bases ( | 02-05-2009 |
| 20090032174 | METHOD OF FABRICATING PNEUMATIC TIRE - A smooth resin film including an ultraviolet ray absorbing agent is pasted to an outer surface of a side portion of an unvulcanized tire, the unvulcanized tire is vulcanized and molded in a state of pasting the resin film, thereby, a pneumatic tire provided with the resin film at the outer surface of the tire side portion to be able to be exfoliated therefrom is fabricated. | 02-05-2009 |
| 20090032173 | Method of Fabricating Pneumatic Tire - A pneumatic tire provided with a resin film at an outer surface of the tire side portion to be able to be exfoliated therefrom by pasting a smooth resin film having a melting point equal to or higher than 23° C., a Young's modulus equal to or larger than 2.5 GPa and a thickness of 10 through 150 μm to an outer surface of a side portion of an unvulcanized tire and vulcanizing and molding the unvulcanized tire in a state of pasting the resin film. | 02-05-2009 |
| 20090032172 | Method of Fabricating Pneumatic Tire - A resin film having a melting point equal to or higher than 230° C. and a thickness of 20 through 150 μm is pasted to an outer surface of a side portion of an unvulcanized tire and by vulcanizing and molding the unvulcanized tire in a state of pasting the resin film, a pneumatic tire provided with the resin film at the outer surface of the tire side portion to be able to be exfoliated therefrom is fabricated. | 02-05-2009 |
| 20090032159 | Pneumatic Tire And Its Fabricating Method - Two kinds or more of resin films having different surface roughnesses are pasted to an outer surface of a side portion of an unvulcanized tire, the unvulcanized tire is vulcanized and molded in a state of pasting the resin films, thereby, a pneumatic tire provided with two kinds or more of the resin films at the outer surface of the tire side portion to be able to be exfoliated therefrom is fabricated. | 02-05-2009 |
| 20090030105 | METHOD FOR PRODUCING RUBBER-FILLER COMPOSITE - In a rubber-filler composite, the filler is uniformly finely dispersed, thereby improving low heat build-up, fatigue resistance and processability of a rubber composition. The rubber-filler composite is obtained by irradiating a filler slurry containing a filler such as carbon black or silica with high amplitude ultrasonic waves having amplitude of 80 μm or more to finely disperse the filler in the slurry, and mixing the dispersion-treated filler slurry with a rubber latex such as a natural rubber latex while conducting irradiation with high amplitude ultrasonic waves having amplitude of 80 μm or more, followed by coagulating and drying. | 01-29-2009 |
| 20090025858 | Manufacturing Method of Pneumatic Tire - A side surface of an apex rubber is exposed annularly by injection molding the annular apex rubber and opening a forming mold while retaining the annular apex rubber in an unvulcanized state. Further, a side surface of a rubber pad is exposed annularly by injection molding the annular rubber pad and opening a forming mold while retaining the annular rubber pad in an unvulcanized state. Thereafter, an integrated compound rubber member is formed by overlapping a lower mold retaining the apex rubber and a lower mold retaining the rubber pad and laminating the side surface of the apex rubber to the side surface of the rubber pad, and an unvulcanized tire is formed by laminating the compound rubber member to the carcass ply. | 01-29-2009 |
| 20090020201 | Pneumatic Tire Assembly - A pneumatic tire assembly comprising a rim, a pneumatic tire that has a double structure including an outer tire and an inner tire inserted thereinto, and is assembled with the rim, and air chambers formed inside and outside the inner tire, wherein the rim includes a pair of bead seats on which bead portions of the outer tire and the inner tire are placed, a first rim flange protruding outward in a diameter direction of the tire from a side end of the bead seat, a second rim flange disposed inside the first rim flange in a rim width direction and formed on at least one of the bead seats while protruding therefrom, and an air valve provided to the second rim flange, the outer tire is held by the first rim flange and the second rim flange with the bead portion thereof being nipped therebetween, the inner tire is mounted with the bead portion thereof being in internal contact with the second rim flange, and in an outer wall surface area of the inner tire extending outward from a position of a maximum height of the second rim flange in a diameter direction of the tire, a groove portion for feeding air supplied via the air valve into the air chamber formed outside the inner tire is formed into a concave shape. | 01-22-2009 |
| 20090000714 | Pneumatic Tire and Tire Assembly - The pneumatic tire includes an outer tire installed such that a bead portion is inscribed in a rim flange, and an inner tire inserted inside the outer tire and installed such that a bead portion is inscribed in the bead portion of the outer tire. A plurality of protrusions are provided in an annular outer side wall surface region extending in an outer side in a tire diametrical direction from a bead heel of the inner tire so as to be differentiated in the positions in the tire diametrical direction and overlap with one another when seen in a tire circumferential direction, and a ventilation path for feeding an air supplied to a portion near the bead heel into an air chamber is formed between the protrusions in a state where the outer side wall surface region is inscribed in the bead portion. | 01-01-2009 |
| 20080314505 | METHOD FOR MANUFACTURING TIRE RUBBER MEMBER - A method for manufacturing a tire rubber member, the method comprising: spirally winding a rubber ribbon including a first rubber portion and a second rubber portion, each composed of a rubber having different physical characteristics and joined to each other with a boundary face extending therebetween along a longitudinal direction thereof, along a circumferential direction of a tire so that the second rubber portion is disposed on an outer peripheral side of the first rubber portion, to form the tire rubber member in which a second rubber layer formed with the second rubber portion is built up on the outer periphery of the tire of a first rubber layer formed with the first rubber portion. | 12-25-2008 |
| 20080305720 | Method for Production of a Laminate Polishing Pad - Disclosed is a method for production of a laminate polishing pad which comprises a reduced number of steps and is excellent in productivity rate, and which causes no detachment between a polishing layer and a cushion layer and can prevent the groove clogging caused by a slurry or the like. Also disclosed is a laminate polishing pad produced by the method. A method for production of a laminate polishing pad, comprising the steps of: preparing a cell-dispersed urethane composition by a mechanical frothing process; ejecting the cell-dispersed urethane composition onto a cushion layer continuously while feeding the cushion layer; curing the cell-dispersed urethane composition while controlling the thickness of the composition evenly to form a polishing layer made of a polyurethane foam, thereby producing a long laminate sheet; and cutting the long laminate sheet. | 12-11-2008 |
| 20080305196 | TIRE CURING FORMING MOLD - In a tire curing forming mold in which an annular mold portion brought into contact with a tread portion of a tire is constructed by sectors divided in a tire circumferential direction, an end portion of the sector is constructed by a piece attachable to and detachable from a sector main body, and the piece is structured to include all ridge lines between an end surface of the sector and a tread forming surface provided on an inner peripheral side of the annular mold portion. | 12-11-2008 |
| 20080302466 | TIRE DESIGN METHOD - A tire is designed using a tire FEM model by obtaining an optimal solution for a tire structure which optimizes an objective function with a tread pattern shape kept fixed and performing a numerical optimization for obtaining an optimal solution for the tread pattern shape which optimizes the objective function with the tire structure kept fixed. The optimization for the tire structure is performed using a tire model having a tread pattern shape optimized at the immediately preceding cycle of the operation of optimizing the tread pattern shape. The optimization for the tread pattern shape is performed using a tire model having a tire structure optimized at the preceding cycle of the operation of optimizing the tire structure. The optimizing operations are repeated until convergence of optimal solutions obtained by those operations takes place. | 12-11-2008 |
| 20080302465 | TIRE DESIGN METHOD - In a tire design method, a numerical optimization is performed according to a basis vector process using an FEM model to obtain an optimal solution which optimizes an objective function for a tread pattern shape. A numerical optimization is performed according to an ECAT using the FEM model to obtain an optimal solution which optimizes the objective function for the tread pattern shape. Either of the calculations is executed first, and the optimal solution obtained at the first calculation is used as an initial shape when the other numerical optimization is performed. | 12-11-2008 |
| 20080300840 | Tire Design Method - An initial layout of one pitch unit of a tire tread pattern is decided. A finite element model of a tire is created by developing the one pitch unit of the initial layout into a plurality of pitches in the circumferential direction of the tire to carry out a structural analysis. Evaluation indices calculated through the analysis are integrated into one pitch unit for each element associated with the indices. The elements are classified according to the magnitudes of the integrated evaluation indices to determine a plurality of classes to which elements subject to removal belong, and elements to be removed are selected from each of classes thus determined. Elements to be added are selected from among the elements which have been removed to decide a layout of the current generation. A finite element model of a tire is created by developing the layout of the current generation into a plurality of pitches to carry out a structural analysis, and convergence of an objective function is determined. | 12-04-2008 |
| 20080299240 | METAL MOLD FOR VULCANIZING TIRE TREADS - A metal mold for vulcanizing tire treads reliably preventing incorrect assembling of split pieces. The metal mold | 12-04-2008 |
| 20080295937 | Pneumatic Tire - A sipe is formed in a block provided in a tread surface, wide portions extending in a sipe length direction are formed in each of a kick-out side and a step-in side of the sipe, and a total of heights of the wide portions in the kick-out side of the sipe is made larger than a total of heights of the wide portions in the step-in side of the sipe. | 12-04-2008 |
