Patent application number | Description | Published |
20100320662 | COIL SPRING FOR VEHICLE SUSPENSION AND METHOD FOR MANUFACTURING THE SAME - A spring wire with hardness of 50 to 56 HRC is subjected to first and second shot peening processes within a warm working temperature range of 150 to 350° C. In the first shot peening process, the first shot of a shot size of 1.0 mm or more is used. In the second shot peening process, the second shot smaller in shot size than the first shot is used. Through these shot peening processes, compressive residual stress is imparted to the spring wire. The spring wire includes a residual stress increase part, residual stress peak part, and residual stress decrease part. In the residual stress decrease part, a part including the compressive residual stress magnitude of which is equivalent to the magnitude of the compressive residual stress at the surface of the spring wire exists at a position at a depth exceeding the permissible pit depth. | 12-23-2010 |
20110232810 | METHOD FOR HEAT TREATMENT OF COILED SPRING - A method for heat treatment of a coiled spring includes cold forming a coiled spring, annealing the coiled spring after the cold forming, thereby removing of residual stress generated in the cold forming, in which the annealing is performed by electric resistance heating. | 09-29-2011 |
20120013059 | COMPRESSION COIL SPRING AND MANUFACTURING DEVICE AND MANUFACTURING METHOD FOR COIL SPRING - Bending deformation exceeding a yield stress is applied by winding a material on a mandrel. Coiling is performed simultaneously with the application of the bending deformation, and the load is removed after the coiling. This spring includes an outside surface region having a compressive residual stress and a compressive stress reduction region in which the compressive residual stress is reduced from the outside surface region toward the center of the material. A stress change portion at which a change from the compressive residual stress to a tensile residual stress occurs exists between the outside surface region and the center of the material. The spring further includes a tensile stress peak portion, tensile stress reduction region, and inside surface region. The inside surface region has the tensile compressive residual stress having an absolute value smaller than that of the outside surface region. | 01-19-2012 |
20120055023 | METHOD FOR MANUFACTURING A COIL SPRING FOR VEHICLE SUSPENSION - A spring wire with a hardness of 50 to 56 HRC is subjected to first and second shot peening processes within a warm working temperature range of 150 to 350° C. In the first shot peening process, a first shot of a shot size of at least 1.0 mm is used. In the second shot peening process, a second shot smaller in shot size than the first shot is sued. Through these shot peening processes, compressive residual stress is imparted to the spring wire. The spring wire includes a residual stress increase part, residual stress peak part, and residual stress decrease part. In the residual stress decrease part, a part including a compressive residual stress magnitude equivalent to the magnitude of the compressive residual stress at a surface of the spring wire exists at a region at a depth exceeding the permissible pit depth. | 03-08-2012 |
20120055216 | MANUFACTURING METHOD FOR COIL SPRING - A spring wire is subjected to a first shot peening process and a second shot peening process. In the first shot peening process, a first, shot is projected on the spring wire at a first projectile speed. High kinetic energy of the first shot produces compressive residual stress in a region ranging from the surface of the spring wire to a deep position. In the second spring wire process, a second shot is projected at a second projectile speed lower than the speed of the first shot. The kinetic energy of the second shot is lower than that of the first shot. The low kinetic energy of the second shot increases the compressive residual stress in a region near the surface of the spring wire. | 03-08-2012 |
20130240093 | STEEL FOR HIGH-STRENGTH SPRING, METHOD FOR PRODUCING SAME, AND HIGH-STRENGTH SPRING - A steel for high-strength spring has an Ac | 09-19-2013 |
Patent application number | Description | Published |
20100261109 | TONER, METHOD FOR FORMING IMAGE, AND IMAGE FORMING APPARATUS - A toner includes toner base particles containing at least a binder resin, a coloring agent, and a release agent; and alumina fine particles whose phase angle (θ) is |80°| or less at an alternating current frequency of 1 to 10 kHz in an alternating current impedance method. | 10-14-2010 |
20100261110 | TONER, TONER PRODUCTION METHOD, AND IMAGE FORMING DEVICE USING THE SAME - A toner, has a number mode diameter of 3 μm or more and 6 μm or lower and a particle size distribution of a toner including an externally-applied agent in the range of 0.6 μm to 400 μm in which the number frequency of a toner smaller than the number mode diameter is smaller than the number frequency of a toner equal to or larger than the number mode diameter. | 10-14-2010 |
20100261111 | TONER, IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS - A toner includes at least a binder resin, a colorant, and a release agent. The toner contains base toner particles having an average volume particle size of 2 μm to 6 μm, small particle silica having an average volume particle size of 7 nm to 15 nm, large particle silica having an average volume particle size of 50 nm to 400 nm, small particle transition alumina having an average volume particle size of 7 nm to 20 nm, and large particle α-type alumina having an average volume particle size of 50 nm to 400 nm or large particle cerium oxide having an average volume particle size of 50 nm to 400 nm. | 10-14-2010 |
20100261113 | TONER, METHOD FOR FORMING IMAGE, AND IMAGE FORMING APPARATUS - A toner includes toner base particles containing at least a binder resin, a coloring agent, and a release agent and having a volume-average particle size of 2 to 6 μm; a small particle size silica having an average particle size of 7 to 15 nm; a large particle size silica having an average particle size of 50 to 400 nm; and a small particle size transition alumina obtained by a dawsonite method and having an average particle size of 7 to 20 nm. | 10-14-2010 |
20110242196 | INK JET RECORDING METHOD - An ink jet recording method includes ejecting at least two color ink compositions onto a recording medium so as to be deposited one on another. When one ink composition is deposited to form a first image and then another ink composition is deposited to form a second image on the first image, the ink composition forming the second image has a higher yield value than the ink composition forming the first image. | 10-06-2011 |
20110242213 | INK JET RECORDING METHOD - The ink jet recording method includes performing printing by depositing droplets of an ink composition ejected from the ink ejection nozzles on a recording medium transported in the direction perpendicular to the nozzle alignment direction in such a manner that the droplets ejected from at least one ink ejection nozzle located at an end of each of ink jet heads adjacent to each other in the direction perpendicular to the nozzle alignment direction are deposited one on the other. The volume of droplet ejected from the ink ejection nozzle at the end of the ink jet head is smaller than the volume of ink droplet ejected from each of the other ink ejection nozzles of the ink jet head, and the ink composition has a yield value of 0.50 to 2.00 mPa. | 10-06-2011 |
20120262516 | INK JET RECORDING AQUEOUS PIGMENT INK - An ink jet recording aqueous pigment ink contains a self-dispersing pigment, a quaternary amino acid, a non-polymeric, nonionic material having a melting point of 40° C. or more, and at least one of trialkylamine and trialkanolamine. The content of the non-polymeric, nonionic material is 3% to 15% by mass relative to the total mass of the ink jet recording aqueous pigment ink. | 10-18-2012 |
20130241991 | INK JET RECORDING METHOD - An ink jet recording method using a recording apparatus including a plurality of ink jet heads, comprising performing printing by depositing droplets of an ink composition ejected from the ink jet heads on a recording medium, wherein the ink jet heads are aligned in a direction cross to a transporting direction of the recording medium and the ink composition has a yield value of 0.50 to 2.00 mPa. | 09-19-2013 |
20130286118 | Ink Jet Recording Method - An ink jet recording method includes ejecting at least two color ink compositions onto a recording medium so as to be deposited one on another. When one ink composition is deposited to form a first image and then another ink composition is deposited to form a second image on the first image, the ink composition forming the second image has a higher yield value than the ink composition forming the first image. | 10-31-2013 |
Patent application number | Description | Published |
20120006883 | APPARATUS AND METHOD FOR FRICTION STIR WELDING - The apparatus includes a welding head having a welding tool to be pressed against workpieces and a rotation drive unit to drive the welding tool to be rotated; a head drive unit to drive the welding head to be displaced, the head drive unit including a cylinder actuator having a piston rod to which the welding head is attached; a first pressure unit to supply a pressure fluid into a first chamber of the cylinder actuator; a second pressure unit to supply a pressure fluid into a second chamber of the cylinder actuator; a control unit to control pressures of respective pressure fluids supplied by the first pressure unit and the second pressure unit. | 01-12-2012 |
20140069985 | FRICTION STIR SPOT WELDING DEVICE AND FRICTION STIR SPOT WELDING METHOD - A tool driving section of a friction stir spot welding device is configured to cause each of a pin member and a shoulder member to advance and retract, and is controlled by a tool driving control section. A press-fit reference point setting section sets a position where the pin member or the shoulder member contacts an object to be welded as a press-fit reference point, and the tool driving control section controls the position of the pin member with respect to the shoulder member on the basis of the press-fit reference point, thereby controlling the press-fit depth of a rotating tool press-fitted from the surface of the object to be welded. This achieves the excellent welding quality at suitable precision according to welding conditions especially in a double-acting friction stir spot welding method. | 03-13-2014 |
20140069986 | FRICTION STIR SPOT WELDING DEVICE AND FRICTION STIR SPOT WELDING METHOD - A tool driving section of a friction stir spot welding device is configured to advance and retract each of a pin member and a shoulder member. A tool driving control section is configured to control the tool driving section such that an absolute value of a tool average position Tx defined by a following equation:
| 03-13-2014 |
20150183054 | WELDING TOOL FOR USE IN DOUBLE-ACTING FRICTION STIR WELDING OR DOUBLE-ACTING FRICTION STIR SPOT WELDING AND WELDING APPARATUS USING THE SAME - A double-acting friction stir welding tool according to the present invention at least includes: a columnar pin member; and a shoulder member positioned outside the pin member and having a cylindrical shape, the shoulder member being configured to rotate around an axis, which is the same as an axis of rotation of the pin member. A contact surface and an outer peripheral surface of the pin member, the contact surface coming into contact with a workpiece, have non-affinity for the workpiece. The shoulder member is configured such that an inner peripheral surface and an outer peripheral surface, the inner peripheral surface facing the pin member, have non-affinity for the workpiece, and only a contact surface coming into contact with the workpiece has an affinity for the workpiece. A clearance between the pin member and the shoulder member may be suitably set. | 07-02-2015 |
Patent application number | Description | Published |
20140357895 | TRIPHENYLAMINE DERIVATIVE, METHOD FOR MANUFACTURING THE SAME, AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER - A triphenylamine derivative is represented by General Formula (1). | 12-04-2014 |
20150037069 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER AND IMAGE FORMING APPARATUS - An electrophotographic photosensitive member containing a terphenoquinone derivative represented by the following formula (1): | 02-05-2015 |
20150093696 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER - An electrophotographic photosensitive member includes a photosensitive layer that contains a charge generating material, a hole transport material, a binder resin, and a plasticizer. The hole transport material contains a triarylamine derivative represented by General Formula (1) below. The plasticizer contains at least one of a compound represented by General Formula (2a) and a compound represented by General Formula (2b) below. | 04-02-2015 |
20150118606 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER - An electrophotographic photosensitive member includes a photosensitive layer containing a naphthalenediimide derivative represented by the following general formula (1). In the general formula (1), R | 04-30-2015 |
20150118607 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER - An electrophotographic photosensitive member includes a photosensitive layer containing a naphthalenediimide derivative represented by the following formula (1) or (2). In the formula (1) or (2), R | 04-30-2015 |
20150118608 | MULTI-LAYER ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER - A multi-layer electrophotographic photosensitive member contains a charge generating material including oxo-titanium phthalocyanine that among diffraction peaks for Bragg angles 2θ±0.2° with respect to characteristic X-rays of CuKα having a wavelength of 1.542 Å, at least exhibits a highest diffraction peak at 27.2°. The multi-layer electrophotographic photosensitive member also contains a hole transport material including a triarylamine derivative shown in Generic Formula (1). A ratio of the hole transport material relative to a binder resin in a charge transport layer is no greater than 0.55. In Generic Formula (1), Ar | 04-30-2015 |