Patents by Inventor Kazuyuki Hirata
Kazuyuki Hirata has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10486219Abstract: A metal plate punching method for forming a strip portion by punching a metal plate via shearing includes a former step for forming a first side of the strip portion in the metal plate by punching the metal plate and a latter step for forming the strip portion by forming a second side of the strip portion in the metal plate by punching the metal plate while retaining the first side.Type: GrantFiled: June 9, 2016Date of Patent: November 26, 2019Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Kazuyuki Hirata
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Patent number: 10478886Abstract: A recess is formed in a plate-like workpiece. Then, an inner ejector is engaged with the recess to restrict deformation of a body portion. In this state, a flange is formed in the outer periphery of the workpiece. A processed product portion is then punched out.Type: GrantFiled: December 11, 2014Date of Patent: November 19, 2019Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Kazuyuki Hirata
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Patent number: 10464331Abstract: The liquid container includes: a container main body including a containment chamber containing a liquid and has some walls including a front-end wall, a rear-end wall, and an upper-surface wall; a liquid outlet connected to a liquid-consuming device to flow out the liquid from the containment chamber to the liquid-consuming device; a liquid inlet on the upper-surface wall at a position closer to the rear-end wall and accepts injection of the liquid from outside of the container main body into the containment chamber; and a visual recognition portion that is provided on the rear-end wall and is see-through so that a position of a liquid surface of the liquid in the containment chamber is recognizable. The rear-end wall has scale marks as indexes of an amount of the liquid in the containment chamber on an outer wall surface and an inner wall surface.Type: GrantFiled: July 9, 2018Date of Patent: November 5, 2019Assignee: SEIKO EPSON CORPORATIONInventors: Naoki Naito, Yuji Aoki, Kazuyuki Hirata, Hiroshi Nose, Keita Ichihara
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Patent number: 10434784Abstract: There is provided with a cartridge comprising a liquid supply portion; a contact portion that is located on a +Z-axis direction side of the liquid supply portion and that is arranged to contact with an electrical connecting element; and a positioning structure that is located between the liquid supply portion and the contact portion in a Z-axis direction. The liquid supply portion is configured to receive a first external force in a ?Y-axis direction from the liquid introducing structure when the liquid supply portion is connected with the liquid introducing structure. The contact portion is configured to receive a second external force in a direction including a ?Y-axis direction component from the electrical connecting element when the contact portion comes into contact with the electrical connecting element. This configuration suppresses position misalignment of the cartridge or a connector to a mounting structure.Type: GrantFiled: September 27, 2017Date of Patent: October 8, 2019Assignee: SEIKO EPSON CORPORATIONInventors: Kazuyuki Hirata, Masahiro Karasawa, Hiroshi Nose, Takeshi Komaki, Naoki Natio, Yuji Aoki, Tomoji Suzuki
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Patent number: 10421114Abstract: A workpiece manufacturing apparatus includes a lower die assembly, an upper die assembly, a workpiece extracting device, and a workpiece conveying device. The lower die assembly includes a punch configured to punch out a workpiece into the upper die assembly. The upper die assembly includes an ejector configured to eject the punched out workpiece. The extracting device includes a catch plate configured to receive the ejected workpiece and a moving mechanism, which moves the catch plate between positions below the upper die assembly and the conveying device. The moving mechanism is configured to move the catch plate from the conveying device to the positions below the upper die assembly as the upper die assembly moves upward and to move the catch plate from the positions below the upper die assembly to the conveying device as the upper die assembly moves downward.Type: GrantFiled: June 7, 2018Date of Patent: September 24, 2019Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Kazuyuki Hirata
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Patent number: 10384250Abstract: A method for forming bulging portions on a metal plate by performing cold-pressing on the metal plate is provided. The method includes a first step and a second step. In the first step, a pre-formed body including pre-formed bulging portions is formed with a first die. Each pre-formed bulging portion includes sidewalls. Each sidewall includes dents. In the second step, the sidewalls are pressed by a second die so that the dents of the pre-formed body disappear.Type: GrantFiled: June 28, 2016Date of Patent: August 20, 2019Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Kazuyuki Hirata
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Patent number: 10381660Abstract: A separator for a fuel cell includes a thin metal plate, a protrusion formed on the thin metal plate, a gas passage formed by the protrusion, and a trap that is formed by forming a recess in a wall portion of the protrusion such that the trap is provided in the gas passage to correspond to the recess.Type: GrantFiled: February 13, 2015Date of Patent: August 13, 2019Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Kazuyuki Hirata
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Patent number: 10328707Abstract: Provided is a technique that makes it possible to mitigate impact acting on a liquid container. The liquid container includes a liquid storage portion that is surrounded by a plurality of wall portions, and contains liquid therein, and a plurality of contact portions that are provided on a first wall portion among the plurality of wall portions, and are in contact with terminals on-the-apparatus-side provided in a liquid consumption apparatus. The contact portions are provided at a position close to a first edge side, at least some of the plurality of contact portions form at least one column arranged along the first edge side, the liquid container includes protruding portions outward of outer contact portions, and the protruding portions are provided between an end portion the first edge side of the outer contact portions and the first edge side in a direction from the first edge side toward the column.Type: GrantFiled: February 27, 2018Date of Patent: June 25, 2019Assignee: SEIKO EPSON CORPORATIONInventors: Keita Ichihara, Kazuyuki Hirata, Ryota Takahashi
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Patent number: 10328482Abstract: A heat sink having a base and a projecting portion that extends from the base is manufactured by cold pressing a metal component. In the first process, a preparatory compact is formed by pressing the metal component with a first die including a first die block and a first punch. The preparatory compact has a depression on a surface of the metal component that faces the first punch and a protrusion on a surface of the metal component that faces the first die block. In the second process, by pressing the preparatory compact with the second die including a second punch and a second die block, the depression is crushed and the protrusion is pushed out toward the back of the hole of the second die block to form the projecting portion.Type: GrantFiled: May 27, 2016Date of Patent: June 25, 2019Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Kazuyuki Hirata
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Publication number: 20190119599Abstract: A lubricating oil for press working contains a base oil and a fat or oil-containing additive and a calcium-containing additive added to the base oil. The proportion of the fat or oil-containing additive with respect to the whole volume of the lubricating oil for press working is 10 to 30%. The proportion of the calcium-containing additive with respect to the whole volume of the lubricating oil for press working is 5 to 15%.Type: ApplicationFiled: October 18, 2018Publication date: April 25, 2019Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Ryota SASAKI, Kazuyuki HIRATA, Naoki KATO
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Patent number: 10265750Abstract: A press die apparatus includes a die block and a punch. The die block includes a first shaping face, which is constituted by first die segments. The punch includes a second shaping face, which is constituted by second die segments. Any two first die segments that are adjacent to each other contact each other at first contacting surfaces. Any two second die segments that are adjacent to each other contact each other at second contacting surfaces. The first contacting surface of each of two first die segments that contact each other has a first communicating groove, which communicates with the first shaping face. The second contacting surface of each of two second die segments that contact each other has a second communicating groove, which communicates with the second shaping face.Type: GrantFiled: June 10, 2016Date of Patent: April 23, 2019Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Kazuyuki Hirata
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Publication number: 20190039112Abstract: A pressing device for a metal plate includes a support frame configured to support an outer edge of a metal plate that extends horizontally, a lower die, and an upper die. The support frame includes a tray that supports the outer edge of the metal plate by mounting the metal plate on the tray and a positioning member that positions the metal plate, which is mounted on the tray, relative to the tray. The upper die includes a frame-shaped pushing member that moves integrally with the upper die and holds the outer edge of the metal plate between the pushing member and the tray of the support frame when the upper die and the lower die are clamped.Type: ApplicationFiled: July 20, 2018Publication date: February 7, 2019Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Kazuyuki HIRATA, Harutaka ODA
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Publication number: 20190016147Abstract: The liquid container includes: a container main body including a containment chamber containing a liquid and has some walls including a front-end wall, a rear-end wall, and an upper-surface wall; a liquid outlet connected to a liquid-consuming device to flow out the liquid from the containment chamber to the liquid-consuming device; a liquid inlet on the upper-surface wall at a position closer to the rear-end wall and accepts injection of the liquid from outside of the container main body into the containment chamber; and a visual recognition portion that is provided on the rear-end wall and is see-through so that a position of a liquid surface of the liquid in the containment chamber is recognizable. The rear-end wall has scale marks as indexes of an amount of the liquid in the containment chamber on an outer wall surface and an inner wall surface.Type: ApplicationFiled: July 9, 2018Publication date: January 17, 2019Applicant: Seiko Epson CorporationInventors: Naoki NAITO, Yuji Aoki, Kazuyuki Hirata, Hiroshi Nose, Keita Ichihara
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Publication number: 20180361608Abstract: A workpiece manufacturing apparatus includes a lower die assembly, an upper die assembly, a workpiece extracting device, and a workpiece conveying device. The lower die assembly includes a punch configured to punch out a workpiece into the upper die assembly. The upper die assembly includes an ejector configured to eject the punched out workpiece. The extracting device includes a catch plate configured to receive the ejected workpiece and a moving mechanism, which moves the catch plate between positions below the upper die assembly and the conveying device. The moving mechanism is configured to move the catch plate from the conveying device to the positions below the upper die assembly as the upper die assembly moves upward and to move the catch plate from the positions below the upper die assembly to the conveying device as the upper die assembly moves downward.Type: ApplicationFiled: June 7, 2018Publication date: December 20, 2018Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Kazuyuki HIRATA
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Publication number: 20180361609Abstract: A workpiece manufacturing apparatus includes a punch, which is provided in a lower die assembly and punches out a workpiece from an unprocessed material, and an ejector, which is provided in an upper die assembly so as to be capable of approaching and moving away from the lower die assembly. The manufacturing apparatus further includes a spring, which is provided in the upper die assembly and urges the ejector toward the lower die assembly, and a locking device, which locks the ejector with respect to the upper die assembly at a position at which the punch punches out the workpiece and releases the ejector when the die assemblies are opened. The locking device includes an actuator, which is provided in the upper die assembly and slides a slider between a locking position, at which the ejector is locked, and a releasing position, at which the ejector is released.Type: ApplicationFiled: June 7, 2018Publication date: December 20, 2018Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Kazuyuki HIRATA, Taira ITO
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Patent number: 10150152Abstract: A fixed die and a punch, which moves toward and away from the die, are provided. A series of bulges is formed in sheet metal between depressions and projections of the die and projections and depressions of the punch. In forming, the punch moves toward the die such that the sheet metal is pressed between first convex sections and second and third convex sections of the die and the punch, and subsequently the sheet metal is pressed between fourth convex sections.Type: GrantFiled: November 16, 2017Date of Patent: December 11, 2018Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Kazuyuki Hirata
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Patent number: 10071411Abstract: A press die having a shaping face includes a holding frame, die members, a reference member, and a pressing bolt. Each of the die members includes a first surface that configures the shaping face. The die members are aligned in the holding frame. The reference member is arranged on an inner side surface of the holding frame to position the die members. The pressing bolt is supported by the holding frame on a side opposite to the reference member. The pressing bolt presses the die members against the reference member.Type: GrantFiled: November 22, 2017Date of Patent: September 11, 2018Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Kazuyuki Hirata, Harutaka Oda
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Publication number: 20180244053Abstract: Provided is a technique that makes it possible to mitigate impact acting on a liquid container. The liquid container includes a liquid storage portion that is surrounded by a plurality of wall portions, and contains liquid therein, and a plurality of contact portions that are provided on a first wall portion among the plurality of wall portions, and are in contact with terminals on-the-apparatus-side provided in a liquid consumption apparatus. The contact portions are provided at a position close to a first edge side, at least some of the plurality of contact portions form at least one column arranged along the first edge side, the liquid container includes protruding portions outward of outer contact portions, and the protruding portions are provided between an end portion the first edge side of the outer contact portions and the first edge side in a direction from the first edge side toward the column.Type: ApplicationFiled: February 27, 2018Publication date: August 30, 2018Applicant: SEIKO EPSON CORPORATIONInventors: Keita ICHIHARA, Kazuyuki HIRATA, Ryota TAKAHASHI
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Publication number: 20180239704Abstract: A transmitting and receiving system includes a first information processing apparatus and a second information processing apparatus. The first information processing apparatus includes a first cache memory, and the second information processing apparatus includes a second cache memory. The second information processing apparatus is configured to transmit and receive information to and from the first information processing apparatus. When transmission information to be transmitted from the first information processing apparatus to the second information processing apparatus is stored in the first cache memory of the first information processing apparatus, the first information processing apparatus transmits partial information that is included in the stored transmission information to the second information processing apparatus or transmits identification information that identifies the transmission information to the second information processing apparatus.Type: ApplicationFiled: October 25, 2017Publication date: August 23, 2018Applicant: FUJI XEROX CO., LTD.Inventors: Daizo TOMINAGA, Masahiko MIZUMURA, Masaki YAJIMA, Takahisa KOGA, Yusuke MORITA, Kazuyuki HIRATA, Kenta KOIZUMI, Shuntaro HONJO, Junki MIZUKAMI
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Publication number: 20180169740Abstract: A press die includes: a die base; a plurality of die members arranged on the die base so as to produce a forming surface; a plurality of shims each of which is interposed between the die base and each of the plurality of die members; and a frame that surrounds the die base, the plurality of die members, and the plurality of shims. Each of the plurality of shims has a hardness higher than the plurality of die members. A regulating means that carries out a regulation so that an amount of displacement of each of the plurality of die members caused by pressure applied during press forming becomes smaller in proportion to proximity of the die member to the frame is provided between the die base and the plurality of die members or provided on the die base.Type: ApplicationFiled: November 20, 2017Publication date: June 21, 2018Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Kazuyuki HIRATA