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Itami, JP

Akihiko Itami, Hachioji-Shi JP

Patent application numberDescriptionPublished
20090197195ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMING METHOD - Provide is an electrophotographic photoreceptor exhibiting excellent evenness of halftone images together with fine line reproduction, and an image forming method thereof, as to a photoreceptor in which an oxytitanium phthalocyanine pigment having a maximum diffraction peak at a Bragg angle (2θ±0.2°) of 27.2° in CuKα X-ray diffraction. Also disclosed is an electrophotographic photoreceptor possessing a body having cylindrical conductive support provided thereon photosensitive layer containing oxytitanium phthalocyanine pigment having maximum diffraction peak at a Bragg angle (2θ±0.2°) of 27.2° in CuKα X-ray diffraction, and flanges jointed at both ends of the body, wherein at least one of flanges is fitted with driving shaft having drive hole having at least 3 sides, and a ratio B/A of cross-sectional area B of engaging part of rotation shaft to rotate the electrophotographic photoreceptor with respect to cross-sectional area A of the drive hole is 0.890-0.998.08-06-2009

Atsushi Itami, Tokyo JP

Patent application numberDescriptionPublished
20110232807High yield ratio and high-strength thin steel sheet superior in weldability and ductility, high-yield ratio high-strength hot-dip galvanized thin steel sheet, high-yield ratio high-strength hot-dip galvannealed thin steel sheet, and methods of production of same - High yield ratio high-strength thin steel sheet superior in weldability and ductility characterized by; 09-29-2011

Daisuke Itami, Sakai-Shi JP

Patent application numberDescriptionPublished
20100022374METHOD FOR PRODUCING POUCH CONTAINER WITH SPOUT AND APPARATUS FOR PRODUCING POUCH CONTAINER WITH SPOUT - Score lines are formed on package material. A spout attachment hole is formed in a portion corresponding to a top gusset section of a pouch. A spout is attached to the spout attachment hole. A portion corresponding to a peripheral edge of the top gusset section of the pouch and a portion corresponding to a top edge of a body section of the pouch are heat-sealed, and the package material is cut in the width direction. Portions corresponding to side edges of the body section of the pouch are heat-sealed, and a portion corresponding to a peripheral edge of a bottom gusset section and a portion corresponding to a peripheral edge of a bottom end portion of the body section are heat-sealed. The heat-sealed portions formed at the portions corresponding to the side edges of the body section of the pouch are cut so a spouted pouch package is released.01-28-2010

Daisuke Itami, Kodaira-Shi JP

Patent application numberDescriptionPublished
20120037290AIRCRAFT TIRE - The present invention provides an aircraft tire having a carcass structure capable of sufficiently satisfying recent demands for high pressure resistance without increase in tire weight. An aircraft tire 9 includes a pair of bead portions 2 and a carcass 4 made by stacking two or more carcass layers 3 composed of cords coated with rubber, which toroidally extend between the bead portions 2. Further, with respect to carcass layers 3 of the carcass 4 which are adjacent to each other, elongation at break of a widthwise outer carcass layer 3 is smaller than elongation at break of a widthwise inner carcass layer 3.02-16-2012

Eiji Itami, Aichi JP

Patent application numberDescriptionPublished
20110167730APPARATUS FOR CONTROLLING OPENING/CLOSING BODY - An apparatus for controlling an opening/closing body for automatically opening/closing the opening/closing body. The apparatus includes a displacement body movable and displaced between movable regions including a closing region, a releasing region and a neutral region, a neutral detecting first switch configured to output a first detection signal in response to passage of the displacement body through a first boundary portion of the neutral region, a neutral detecting second switch configured to output a second detection signal in response to passage of the displacement body through a second boundary portion of the neutral region, and a control unit which, when effecting a neutral returning movement for returning the displacement body from the closing region to the neutral region, stores switchover information indicative of switchover of the first detection signal detected in the course of the latch closing movement and to effect the neutral returning movement in accordance with the switchover information.07-14-2011

Eiji Itami, Arichi JP

Patent application numberDescriptionPublished
20110181051APPARATUS FOR CONTROLLING OPENING/CLOSING BODY - An apparatus for controlling an opening/closing body for automatically opening/closing the opening/closing body. The apparatus includes a displacement body movable and displaced between movable regions including a closing region, a releasing region and a neutral region, a neutral detecting first switch configured to output a first detection signal in response to passage of the displacement body through a first boundary portion of the neutral region, a neutral detecting second switch configured to output a second detection signal in response to passage of the displacement body through a second boundary portion of the neutral region, and a control unit for effecting braking control for reducing the moving speed of the opening/closing body if neither the first detection signal nor the second detection signal are detected within a predetermined period after starting of a neutral returning movement which is effected after a latch closing movement of the opening/closing body.07-28-2011

Eiji Itami, Aichi-Ken JP

Patent application numberDescriptionPublished
20090237023Device for Controlling Opening/Closing Body for Vehicle - The rotating speed of an output shaft of a door opening and closing motor actuating a sliding door is monitored, and whether a fluctuation value of the rotating speed is equal to or more than a first determination threshold value is determined (step S09-24-2009

Kenichiro Itami, Nagoya-Shi JP

Patent application numberDescriptionPublished
20130041155CARBON NANORING, METHOD FOR PRODUCING SAME, COMPOUND SUITABLE AS STARTING MATERIAL FOR PRODUCING THE CARBON NANORING, AND METHOD FOR PRODUCING THE COMPOUND - This invention provides: a compound for accurately forming a carbon nanoring that contains a specific number of organic rings and has a definite diameter; a method for producing the compound; a method for efficiently producing a carbon nanoring; and a cycloparaphenylene obtained by the production method. The carbon nanoring of the present invention is a compound obtained by bonding a specific number of organic ring groups. The method for producing a carbon nanoring of the present invention comprises a modification step wherein a halogen atom in a U-shaped compound is modified into a boron compound, and a coupling step wherein the U-shaped compound is subjected to a coupling reaction. The U-shaped compound is a novel compound that has cyclohexane rings, benzene rings, and specific organic ring groups.02-14-2013

Masahiro Itami, Osaka JP

Patent application numberDescriptionPublished
20130014545DRUM-TYPE WASHING MACHINEAANM Ushijima; HideakiAACI KyotoAACO JPAAGP Ushijima; Hideaki Kyoto JPAANM Inoue; YutakaAACI ShigaAACO JPAAGP Inoue; Yutaka Shiga JPAANM Itami; MasahiroAACI OsakaAACO JPAAGP Itami; Masahiro Osaka JPAANM Taguchi; TomoyukiAACI ShigaAACO JPAAGP Taguchi; Tomoyuki Shiga JP - In a drum-type washing machine, a plurality of dampers include a first damper and a second damper, the second damper is provided in such a manner that compression force on the second damper from a rotary drum rotated in the forward direction is larger than that on the first damper, the second damper and a vibration detection portion are arranged posterior to a gravity center of a water tank in the front and rear direction, and the first damper is arranged anterior to the second damper. Thus, precise imbalance determination is performed, so that low vibration is realized.01-17-2013
20130014546DRUM-TYPE WASHING MACHINEAANM Kobayashi; ShinichiroAACI OsakaAACO JPAAGP Kobayashi; Shinichiro Osaka JPAANM Inoue; YutakaAACI ShigaAACO JPAAGP Inoue; Yutaka Shiga JPAANM Itami; MasahiroAACI OsakaAACO JPAAGP Itami; Masahiro Osaka JPAANM Ushijima; HideakiAACI KyotoAACO JPAAGP Ushijima; Hideaki Kyoto JP - A drum-type washing machine includes left and right side plates formed of steel plates, the side plates defining side surfaces of an outer case, a front cover provided with an openable and closable door, the front cover defining a front surface of the outer case, an upper cover defining an upper surface of the outer case, a water tank oscillatably arranged in the outer case, and a rotary drum axially supported in the water tank, wherein a plurality of concave portions are formed on the left and right side plates, and the concave portion closer to the front surface of the outer case as a door side has an arc shape with a larger curvature. Thus, rigidity of the side plates in the up and down direction and the left and right direction is increased, so that vibration at the time of spin-drying is reduced.01-17-2013

Naoshige Itami, Kawasaki JP

Patent application numberDescriptionPublished
20090148616REFLECTION TYPE LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF - The present invention is a method of manufacturing a liquid crystal display device, wherein light having an exposure energy is irradiated on the surface of a photo-sensitive resin layer having a predetermined film thickness, and a distribution of thermal deformation characteristics in the thickness direction (or the plane direction) of the photo-sensitive resin layer is formed, then heat treatment is performed to form random undulation (micro-grooves or micro-wrinkles) on the surface of the photo-sensitive resin layer.06-11-2009

Satoshi Itami, Hyogo JP

Patent application numberDescriptionPublished
20100322998SKIN ULCER PREVENTIVE CURATIVE AGENT CONTAINING HUMAN RECOMBINANT HGF - A neovascularization promoting composition, a granulation formation-promoting composition and a preventive or curative composition for skin ulcer, comprising a human recombinant HGF wherein five amino acid residues are deleted in the first Kringle domain thereof. The provided compositions of the present invention are useful as a drug capable of promoting granulation formation and neovascularization and being effective in tissue restoration, especially as a preventive and curative agent for skin ulcer.12-23-2010

Seima Itami, Osaka JP

Patent application numberDescriptionPublished
20090028820Antiviral Agent - An antiviral agent consisting of hepatocyte growth factor (HGF) or an agonist of the HGF receptor, and a medicament for prophylactic and/or therapeutic treatment of a disease caused by hepatitis C virus comprising using said agent simultaneously or separately with other anti-viral agent.01-29-2009

Setsuo Itami, Chiba JP

Patent application numberDescriptionPublished
20080255297INK-JET INK - An ink-jet ink suitable for forming a cured film with a balance of flame resistance, adhesion, chemical resistance, heat resistance, and softness, and a cured film with an excellent balance of the above properties are provided. The ink-jet ink of the invention contains larger than or equal to 10 wt % of a compound of formula (1) as follows:10-16-2008
20120183768COATING FORMING COMPOSITION USED FOR FORMING TRANSPARENT CONDUCTIVE FILM - A subject is to provide a material capable of obtaining a transparent conductive film having an excellent conductivity, optical transparency, environmental resistance, process resistance and close contact in a single application process, and to provide a transparent conductive film and a device element using the same. The means is to prepare a coating forming composition containing at least one kind of materials selected from the group of metal nanowires and metal nanotubes as a first component, polysaccharides and a derivative thereof as a second component, a thermosetting resin compound as a third component, and water as a fourth component to obtain a transparent conductive film by using the coating.07-19-2012

Setsuo Itami, Ichihara-Shi JP

Patent application numberDescriptionPublished
20090056993METHOD FOR FORMING CURED FILM - The invention provides a method for forming a cured film, comprising discharging an ink-jet ink, which comprises predetermined compounds, whose viscosity at 25° C. is approximately 150 to approximately 3,000 mPa·s, from an ink-jet head at a discharging temperature of approximately 80 to approximately 150° C., which has a low degree of spread of an ink-jet ink after landing, and which is able to form a highly-fine pattern.03-05-2009

Shotaro Itami, Aichi JP

Patent application numberDescriptionPublished
20090277911PACKAGING METHOD AND PACKAGING CONTAINER - A packaging container comprises an openable outer case and a bag for packaging a resin material in the outer case. The bag is partially turned back at fold portions so that part of the bag is turned inside out, and at least part of the out-turned part is fixed as a fixing part to any part other than the bag. The inner surfaces of the bag at the fold portions are placed in contact with each other, forming a contact portion, to seal the resin material. The contact portion is placed in correspondence with an openable part of an opening flap of the outer case.11-12-2009

Shunsuke Itami, Saitama-Shi JP

Patent application numberDescriptionPublished
20110070516SOLID POLYMER ELECTROLYTE FUEL CELL - A fuel cell is formed by sandwiching a membrane electrode assembly between a first separator and a second separator. The membrane electrode assembly includes a cathode, an anode, and a solid polymer electrolyte membrane interposed between the cathode and the anode. In the membrane electrode assembly, a catalyst area of an electrode catalyst layer of the cathode and an electrode catalyst layer of the anode terminates at a position spaced upwardly from lower ends of an oxygen-containing gas flow field and a fuel gas flow field.03-24-2011

Taichi Itami, Saitama-Shi JP

Patent application numberDescriptionPublished
20110033606Method for Deodorizing Collagen Peptide and Food, Beverage, or Composition Using The Same - A method for deodorizing collagen peptide by removing the caprylic odor of the peptide. A collagen peptide solution undergoes an initial preliminary heating and a second primary heating, after which the solution is depressurized and cooled. The resulting deodorized collagen can be used in foods, beverages, or other compositions.02-10-2011

Takahiro Itami, Tokyo JP

Patent application numberDescriptionPublished
20110245065NONLINEAR RESISTOR CERAMIC COMPOSITION AND ELECTRONIC COMPONENT - A nonlinear resistor ceramic composition includes zinc oxide as main component, and, as subcomponents, with respect to 100 mol of zinc oxide in terms of respective elements, more than 0.05 to less than 30 at. % of oxide of Co, more than 0.05 to less than 20 at. % of oxide of Sr, more than 0.01 to less than 20 at. % of oxides of rare earth except for Sc and Pm, more than 0.01 to less than 10 at. % of oxide of Si and does not include Al, Ga and In. Alternatively, a nonlinear resistor ceramic composition includes zinc oxide as main component, and, as subcomponents, with respect to 100 mol of zinc oxide in terms of respective elements, more than 0.05 at. % and less than 30 at. % of an oxide of Co, more than 0.05 to less than 20 at. % of oxide of Sr, more than 0.01 to less than 20 at. % of oxides of rare earth except for Sc and Pm, more than 0.01 to less than 10 at. % of oxide of Si and more than 0.01 to less than 10 at. % of calcium zirconate in terms of CaZrO10-06-2011
20120139688CHIP VARISTOR AND CHIP VARISTOR MANUFACTURING METHOD - A chip varistor is provided with a varistor section, a plurality of electroconductive sections, and a plurality of terminal electrodes. The varistor section is comprised of a sintered body containing ZnO as a major component and exhibits the nonlinear voltage-current characteristics. The plurality of electroconductive sections are arranged on both sides of the varistor section and each electroconductive section has a first principal surface connected to the varistor section and a second principal surface opposed to the first principal surface. The terminal electrodes are connected to the respective second principal surfaces of the electroconductive sections.06-07-2012
20130021133VARISTOR AND METHOD FOR MANUFACTURING VARISTOR - A varistor is provided with a varistor element body, a plurality of internal electrodes arranged in the varistor element body so as to sandwich a partial region of the varistor element body between them, and a plurality of external electrodes arranged on the surface of the varistor element body and connected to the corresponding internal electrodes. The external electrode has a sintered electrode layer formed by attaching an electroconductive paste containing an alkali metal to the surface of the varistor element body and sintering it. The varistor element body has a high-resistance region formed by diffusing the alkali metal in the electroconductive paste into the varistor element body from an interface between the surface of the varistor element body and the sintered electrode layer.01-24-2013

Patent applications by Takahiro Itami, Tokyo JP

Tetsuro Itami, Tokyo JP

Patent application numberDescriptionPublished
20080233833Transformable Toy and Leg Structure for Toys - The present invention provides a transformable toy with which the user can enjoy the transforming process of the figure of the toy much more than ever. A movable toy includes an assembly composed of a plurality of components. The assembly is mounted onto an upper body of a toy doll to constitute an exterior 09-25-2008
20090275409GAME MACHINE, GAME SYSTEM, AND COMPUTER-READABLE STORAGE MEDIUM - A game machine of playing a game is provided in which music unique to a character is generated as the character advances its morphologic changes. The game machine of the present invention obtains a morphology changing factor and changes a morphologic change status of a character. When the morphologic change status of the character satisfies any of the evolution requirements provided to the next evolution stage of the current character, the game machine sets the evolution morphology correlated to the evolution requirement as a character morphology. It also generates an evolution melody on the basis of the character melody for the character and a morphology melody which is a melody unique to the evolution morphology of the character, and sets the evolution melody generated as an advanced character melody.11-05-2009
20100234108MUSIC GENRE JUDGING DEVICE AND GAME MACHINE HAVING THE SAME - A music genre judging device able to judge a genre of music in a relatively simple structure.09-16-2010
20110218041GAME MACHINE AND COMPUTER GAME PROGRAM - There is provided a game machine configured such that the activity is enhanced in a game where points are gained depending on the state of the plural component objects being piled up in a game image.09-08-2011

Patent applications by Tetsuro Itami, Tokyo JP

Tetsuro Itami, Setagaya-Ku JP

Patent application numberDescriptionPublished
20120218209INFORMATION PROCESSING DEVICE, METHOD OF CONTROLLING AN INFORMATION PROCESSING DEVICE, AND INFORMATION STORAGE MEDIUM - A determination unit executes determination on whether or not a target area, which is set based on one of a plurality of contact points where a user has touched a touch panel and which includes the one of the plurality of contact points, includes any other contact point out of the plurality of contact points. If the target area includes the any other contact point, a setting unit sets, as a new target area, an area that includes an area other than an area formerly set as the target area and that includes the one the plurality of contact points and the any other contact point. If the determination unit executes the determination multiple times, processing is executed based on the one of the plurality of contact points and on each contact point determined as being included in the target area.08-30-2012

Tsuyoshi Itami, Kawasaki-Shi JP

Patent application numberDescriptionPublished
20090231615JOB PROCESSING SYSTEM, SERVER APPARATUS, INFORMATION PROCESSING APPARATUS, AND JOB PROCESSING METHOD - An information processing apparatus transmits photographic data of a job operator and identification information of the job operator to a server apparatus. The server apparatus calculates a matching rate for each piece of identification information based on a comparison between photographic data registered beforehand in a storage device and the received photographic data. Then, the server apparatus transfers the calculated matching rate to the information processing apparatus. The information processing apparatus performs processing based on the matching rate to reduce the data amount of the photographic data of the job operator.09-17-2009
20100058175ELECTRONIC DOCUMENT PROCESSING APPARATUS AND ELECTRONIC DOCUMENT PROCESSING METHOD - An electronic document processing apparatus and an electronic document processing method are provided that can perform a sophisticated search such as concept search with a high precision even on images including decorated text strings. Text strings are extracted from an electronic document containing layout information, and a baseline of the extracted text string is detected. Subsequently, a line segment A extending forward from the baseline and a line segment B of a different type from the line segment A extending backward from the baseline are provided. It is determined, for different text strings, that the different text strings are concatenated if the line segments A and B, which are provided for the different text string, overlap with each other.03-04-2010
20100208303DOCUMENT PROCESSING APPARATUS - A document processing apparatus includes: a unit configured to detect a leading-edge point of an object in a page; a unit configured to calculate an association of objects to determine whether they should be merged into one based on the area matching rate between the leading-edge points of the objects; a unit configured not only to slide the objects in a normally appropriate direction for merging but also to perform fine-tuning in the vicinity thereof so as to derive a maximum area matching rate and improve the completeness of finished form of merging; a unit configured to merge the mating leading edges of the objects and further merge sets of overlapping objects; a unit configured to calculate the association by comparing attribute values included in the objects instead of using the area matching rate between the mating leading-edge points thereof, depending on a kind of the objects; and a unit configured to reduce the merged objects so that they fit into one page.08-19-2010

Patent applications by Tsuyoshi Itami, Kawasaki-Shi JP

Yasuo Itami, Osaka JP

Patent application numberDescriptionPublished
20090208728SURFACE MODIFIER - A surface modifier comprising an organosilicone compound represented by General Formula (A) and/or General Formula (B): F—(CF08-20-2009
20090216035SURFACE MODIFIER AND ITS USE - A surface modifier comprising an organosilicone compound represented by General Formula (A) and/or General Formula (B): F—(CF08-27-2009
20100126380FLUOROSILICONE MOLD RELEASE COMPOSITION - Disclosed in a mold release composition comprising a fluorosilicone compound of the formula (I): (I) wherein R1, R2, R4, R5, R6, R7, R8 and R9 each is, the same or different, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, R3 and R10 each is; the same or different, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, or Rf-X—, or Z—Y— in which X and Y each is; the same or different, a divalent organic group, Rf is a C1-6 fluoroalkyl group, Z is a silyl group containing a hydrolyzable site, m is 1-100, n is 1-50, and o is 0-200. The mold release composition can give excellent mold releasability and durability of mold releasability (repeated mold releasability).05-27-2010
20110135905HIGH ENERGY RAY-CURABLE COMPOSITION - Disclosed is a high energy ray-curable composition which is excellent in storage stability before curing and enables to form a cured coating film which is excellent in hardness, property of preventing adhesion of fats and oils, property of wiping off fats and oils, abrasion resistance, transparency, water repellency, adhesion, smoothness and uniformity. Specifically disclosed is a high energy ray-curable composition containing the following components (A)-(D). (A) 100 parts by weight of a polyfunctional acrylate (B) 1-30 parts by weight of an organoalkoxysilane having an aliphatic unsaturated bond (C) 1-100 parts by weight of colloidal silica (D) 0.2-20 parts by weight of a fluorine compound having an aliphatic unsaturated bond.06-09-2011
20110306713METHOD OF PREPARING WATER- AND OIL-REPELLENT SOIL-RESISTANT COMPOSITION - The present invention provides a water- and oil-repellent soil-resistant composition comprising (A) a fluorine-containing polymer having repeating units derived from a monomer comprising a fluorine-containing monomer and (B) a silane compound. The water- and oil-repellent soil-resistant composition comprising the fluorine-containing acrylate polymer can impart the excellent water- and oil-repellency and soil resistance to the porous substrate and is free from an organic solvent.12-15-2011

Patent applications by Yasuo Itami, Osaka JP

Yoshiaki Itami, Chiba JP

Patent application numberDescriptionPublished
20090142586Titanium Sheet Covered with Protective Film Superior in High Temperature Oxidation Resistance and High Temperature Salt Damage Resistance, Automobile Exhaust System Using Same, and Methods of production of Same - The present invention provides a titanium sheet covered with a protective film superior in high temperature oxidation resistance and high temperature salt damage resistance and a method of production of the same and an automobile exhaust system using the same. The titanium sheet covered with a protective film is formed on its surface with a protective film of a thickness of 1 to 100 μm where flake-shaped metal Al with an average thickness of 0.1 to 5 μm and average width or average length of 1 to 50 μm or grain-shaped metal Al with an average size of 0.1 to 30 μm is dispersed in 20 to 60 mass % silicone resin or silicone grease and comprised of Si: 15 to 55 mass % and C: 10 to 45 mass % and having a balance of unavoidable impurities. Preferably the titanium sheet of the substrate contains one or both of 0.5 to 2.1 mass % of Cu and 0.4 to 2.5 mass % of Al. The method of production is to brush or spray the above composition of a silicone resin on a titanium sheet to form a protective film and heat it at 150 to 300° C. for 5 to 60 minutes.06-04-2009

Yoshikazu Itami, Tokyo JP

Patent application numberDescriptionPublished
20090158920SOUND PRODUCING DEVICE WHICH USES PHYSIOLOGICAL INFORMATION - To provide a sound producing system using physiological information to create sound outputs based on the user's physiological data, without individual differences between human instructors who provide the instructions for human movement, by using sounds that regulate human movement by machine. A sound system using physiological information comprising: a plurality of sensors that acquire physiological data, a MIDI device for producing sound information, a control unit that combines digital voice file data, sensor information, and sound information to control the output from speakers.06-25-2009

Yukihito Itami, Hiroshima JP

Patent application numberDescriptionPublished
20090243272SUSPENSION SUBFRAME STRUCTURE OF VEHICLE - Disclosed is a suspension subframe structure of a vehicle, which is capable of improving the overall rigidity of a suspension subframe to effectively receive input loads from suspension arms, while reducing the overall weight of the suspension subframe. The suspension subframe structure for supporting a plurality of suspension arms 10-01-2009

Yukio Itami, Kanagawa JP

Patent application numberDescriptionPublished
20080239432OPTICAL DEFLECTOR, METHOD OF MANUFACTURING OPTICAL DEFLECTOR, OPTICAL SCANNING APPARATUS, AND IMAGE FORMING APPARATUS - An optical deflector is disclosed that includes a rotary shaft; plural rotary polygon mirrors laminated in an axis direction of the rotary shaft, the rotary polygon mirrors having reflection surfaces and the reflection surfaces of one rotary polygon mirror and those of another rotary polygon mirror facing in different directions; and a joining section provided between the rotary polygon mirrors. In the optical deflector, the joining section is integrally formed with at least one of the rotary polygon mirrors.10-02-2008
20090231659OPTICAL DEFLECTOR, OPTICAL SCANNER, AND IMAGE FORMING APPARATUS - An optical deflector includes a rotary body including a polygon mirror; a rotation shaft fixed to the rotary body; a bearing unit rotatably supporting the rotation shaft; and a board to which the bearing unit is fixed. Where P [rpm] is the number of revolutions of the rotary body, l [m] is a distance between a center of gravity of the rotary body and the board, m [kg] is mass of the rotary body, r [m] is a radius of the rotation shaft, E [Pa] is Young's modulus of the rotation shaft, and t [mm] is a thickness of the board, the following inequalities are satisfied:09-17-2009
20100091083OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - An optical scanning device includes an optical housing in which a polygon mirror that is rotated by a motor is accommodated and an air inlet that includes a filter. An airflow guiding member is arranged at a position opposite to a surface of the polygon mirror on the air inlet side. An air inducing path is provided, which includes a first flowing path and a second flowing path. The first flowing path includes a first end linked to the air inlet and a second end arranged close to a mirror surface of the polygon mirror. The second flowing path is formed with a surface of the airflow guiding member on an opposite side of the air inlet and a top surface of the polygon mirror.04-15-2010
20120056968OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - Provided is an optical scanning device including: a plurality of light sources; an optical deflector that includes reflection surfaces that deflect different light beams toward opposite sides of the optical deflector; and a light-shielding member provided in an area between incident light beams emitted from the plurality of light sources. The light-shielding member is positioned such that a portion of the light-shielding member is in a light-shield area surrounded by a circumscribed circle of the optical deflector, a line tangent to the circumscribed circle and orthogonal to a Y direction, and the incident light beam, the Y direction being a direction parallel to a main scanning direction and passing through a rotation center of the optical deflector, the main scanning direction being a direction, in which surfaces of image carriers are scanned.03-08-2012
20120182367OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS - An optical scanning device includes: a light source unit; a light deflecting unit that deflects a light beam emitted from the light source unit; a scanning optical device that focuses the light beam deflected by the light deflecting unit on a scanned surface; and a light shielding member. The scanning optical device is provided in a direction in which a sound pressure level of a noise caused by rotation of a rotating polygon mirror included in the light deflecting unit is highest.07-19-2012

Patent applications by Yukio Itami, Kanagawa JP

Yukio Itami, Yokohama-Shi JP

Patent application numberDescriptionPublished
20080204539Rotary drive apparatus, optical scan apparatus, and image formation apparatus - A rotary drive apparatus includes a rotary body with a support portion, a rotor magnet supported by the support portion of the rotary body, a fixation section facing the rotor magnet and rotatably supporting the rotary body, and a winding coil provided in the fixation section, in which an expression E08-28-2008
20080259424HYDRODYNAMIC BEARING UNIT, AND OPTICAL DEFLECTOR, OPTICAL SCANNER AND IMAGE FORMING APPARATUS USING THE SAME - A hydrodynamic bearing unit using oil includes a shaft to be driven, a bearing member configured to support the shaft in a non-contact manner through a bearing gap by a hydrodynamic pressure of the oil, which is generated in the bearing gap while the shaft relatively rotate with respect to the bearing member, a housing configured to house the bearing member and having an opening at one end thereof, another end thereof being enclosed, a sealing member configured to seal a part of the opening of the housing, a channel configured to communicate a space formed between the shaft, the bearing member and the housing with an outside air, and a pressing member configured to press and fix the bearing member on the housing. At least one open part configured to release an air bubble contained in the housing is provided between the bearing member and the sealing member.10-23-2008