Patents by Inventor Yasuhiro Hashimoto
Yasuhiro Hashimoto 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: 12658772Abstract: Regarding a contact structure and a brush motor, wear resistance of a commutator and a brush and an insulating property of a slit is improved. The disclosed contact structure includes a commutator formed of phosphor bronze and containing at least tin ranging from 1.0% or more to 9.0% or less by mass; and a brush formed of copper carbon and provided to come into contact with the commutator.Type: GrantFiled: June 22, 2023Date of Patent: June 16, 2026Assignee: MABUCHI MOTOR CO., LTD.Inventor: Yasuhiro Hashimoto
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Patent number: 12596312Abstract: A toner processing apparatus processing an object comprising toner particles, comprising a processing chamber having a drive shaft rotatably provided at the bottom of chamber; a rotating member and a flow means pivotally supported by the drive shaft, wherein the rotating member comprises a main portion, and a processing portion protruding outward in the radial direction comprising a plate-shaped processing surface that collides with the object, and a rear wing coupled to the upstream side of the plate-shaped processing surface in a rotation direction; the plate-shaped processing surface protrudes upward from the rear wing; the plate-shaped processing surface away from the main portion is on the downstream side in the rotation direction of the rotating member; and where a radius of inner circumference of processing chamber is denoted by d, the shortest distance between inner wall of processing chamber and plate-shaped processing surface is 0.100d or less.Type: GrantFiled: August 22, 2022Date of Patent: April 7, 2026Assignee: Canon Kabushiki KaishaInventors: Shotaro Nomura, Takeshi Tsujino, Yasuhiro Hashimoto, Atsuhiko Ohmori
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Patent number: 12565930Abstract: A seal member including a resin portion that contains a resin and a polymerization inhibitor, in which when an SP value [(J/cm3)0.5] of the resin is defined as SPb and an SP value [(J/cm3)0.5] of the polymerization inhibitor is defined as SPp, a relationship of Expression (1) is satisfied, SPp - SPb ? 16.37 Expression ? ( 1 ) when an area of the polymerization inhibitor in a cross section is set to 100% by area in observation of the cross section of the resin portion of the seal member, an area of the domain of the polymerization inhibitor with a short diameter of 5 ?m or greater is 25% by area or less.Type: GrantFiled: April 2, 2024Date of Patent: March 3, 2026Assignee: Canon Kabushiki KaishaInventors: Yasuhiro Hashimoto, Yuu Sasano, Junya Asaoka, Motoya Fukushima, Kenta Katayama, Shota Amano, Kazunari Ohira
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Publication number: 20250369753Abstract: An object is to realize highly accurate and high-speed three-dimensional shape measurement. A photodetection device includes a light receiving sensor, a processing circuit, and a register. The light receiving sensor acquires pattern information projected onto a subject. The processing circuit acquires depth information on the basis of the pattern information, sets a point group density for each region in the depth information, sets a point group on the basis of the point group density, and outputs information regarding the point group. The register stores a parameter for processing in the processing circuit and a control signal of the processing circuit.Type: ApplicationFiled: May 30, 2023Publication date: December 4, 2025Inventor: Yasuhiro HASHIMOTO
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Publication number: 20250350080Abstract: The present invention is drawn to a sliding contact material for a motor brush, the sliding contact material containing: pure Ag as a matrix; and ZnO particles and Ta2O5 particles dispersed in the matrix, wherein the sliding contact material has a ZnO particle content of 0.1% by mass or more and 12% by mass or less and a Ta2O5 particle content of 0.1% by mass or more and 6.0% by mass or less. The present inventive sliding contact material is preferable as a constituent material of motor brushes of small DC motors, satisfactory in mechanical wear resistance and spark resistance, and superior in low-noise characteristics. In addition, the present invention is drawn to a sliding contact material that is capable of substituting for Ag—Pd-based alloys, which have become expensive because of the recent increase in palladium price.Type: ApplicationFiled: December 22, 2022Publication date: November 13, 2025Applicants: MABUCHI MOTOR CO., LTD., TANAKA KIKINZOKU KOGYO K.K.Inventors: Yasuhiro HASHIMOTO, Hideyuki UZAWA, Keiji NAKAMURA, Kazutoshi YOSHIMURA, Shunpei KAKIUCHI, Kentaro SATO, Yoshinori HORIUCHI, Ryuta IDO, Takao ASADA, Masahiro TAKAHASHI
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Publication number: 20250185675Abstract: A food processing apparatus includes: a reaction tank that contains a reaction liquid including a food ingredient; a reaction pipe that is disposed in the reaction tank and on whose outer surface a photocatalyst (included in a thin film layer) is provided; a light source that irradiates the photocatalyst with light from inside of the reaction pipe; a dissolved oxygen concentration measurer (dissolved oxygen meter) that measures a dissolved oxygen concentration in the reaction liquid; and a controller that stops light irradiation from the light source if a measured dissolved oxygen concentration exceeds a preset first dissolved oxygen concentration.Type: ApplicationFiled: February 19, 2025Publication date: June 12, 2025Inventors: KUNIHIRO UKAI, YASUHIRO HASHIMOTO, SATORU YAMAJI, DAISUKE INO
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Publication number: 20250031708Abstract: A food processing apparatus includes: a container that includes a space for accommodating a food item; a catalyst film that includes an activation surface in contact with the space; and a light source that is disposed closer to a principal surface of the catalyst film than to the activation surface in a thickness direction of the catalyst film, and emits ultraviolet light toward the catalyst film. The principal surface is on an opposite side of the catalyst film with respect to the activation surface. The catalyst film includes a surface layer including the activation surface and an absorption layer including the principal surface. The absorption layer contains an ultraviolet-light absorbing particle that absorbs a portion of the ultraviolet light.Type: ApplicationFiled: October 17, 2024Publication date: January 30, 2025Inventors: Satoru YAMAJI, Daisuke INO, Yasuhiro HASHIMOTO, Kunihiro UKAI
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Publication number: 20240337317Abstract: A seal member including a resin portion that contains a resin and a polymerization inhibitor, in which when an SP value [(J/cm3)0.5] of the resin is defined as SPb and an SP value [(J/cm3)0.5] of the polymerization inhibitor is defined as SPp, a relationship of Expression (1) is satisfied, SPp - SPb ? 16.37 Expression ? ( 1 ) when an area of the polymerization inhibitor in a cross section is set to 100% by area in observation of the cross section of the resin portion of the seal member, an area of the domain of the polymerization inhibitor with a short diameter of 5 ?m or greater is 25% by area or less.Type: ApplicationFiled: April 2, 2024Publication date: October 10, 2024Inventors: YASUHIRO HASHIMOTO, YUU SASANO, JUNYA ASAOKA, MOTOYA FUKUSHIMA, KENTA KATAYAMA, SHOTA AMANO, KAZUNARI OHIRA
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Publication number: 20240317442Abstract: Sterilization is efficiently performed with a small amount of sterilizing agent. A first partition plate separating an upstream zone and a downstream zone is provided with an opening for allowing a container holding section that moves according to rotation of a fifth rotation wheel (transfer rotation wheel) to pass through, and the fifth rotation wheel is disposed across the upstream zone and the downstream zone. A first tunnel that allows the container holding section of the fifth rotation wheel to pass through is provided along a movement path of the container holding section, and a sterilizing nozzle for spraying a sterilizing agent toward the container holding section is provided inside the first tunnel. The first tunnel is provided in the downstream zone, at a position adjacent to the opening where the container holding section passes through at a time of entering the upstream zone from the downstream zone.Type: ApplicationFiled: March 19, 2024Publication date: September 26, 2024Inventors: Yukinobu NISHINO, Satoshi MASUMOTO, Takashi HIGASHIZAKI, Yasuhiro HASHIMOTO, Ryota HAYASE
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Publication number: 20240306676Abstract: A food processing apparatus includes a reaction vessel that has a tubular shape with a bottom and contains a reactant that is liquid and to be used for food, a reactor (for example, a reaction pipe) that is disposed in the reaction vessel and provided with a photocatalyst, a light source that irradiates the photocatalyst with light, a cooler that cools the reactant in the reaction vessel, a lid that closes an opening of the reaction vessel, and a gas supplier (for example, a gas container) that supplies an oxygen-containing gas into the reaction vessel via a first through-hole formed in the lid or in a part of a side wall portion of the reaction vessel in a vicinity of the lid. An inside of the reaction vessel is controllably gastight.Type: ApplicationFiled: May 29, 2024Publication date: September 19, 2024Inventors: KUNIHIRO UKAI, SATORU YAMAJI, YASUHIRO HASHIMOTO, DAISUKE INO, HIRONORI TATSUMI
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Patent number: 12055889Abstract: A toner comprising: a toner particle that comprises a core particle comprising a binder resin, and a shell layer comprising a thermoplastic resin on a surface of the core particle; and organosilicon polymer particles on a surface of the toner particle, wherein a peak top molecular weight of the thermoplastic resin, according to measurement by gel permeation chromatography, is 30000 to 500000, a number-average primary particle diameter of the organosilicon polymer particles is 10 nm to 500 nm, and an absolute value of a difference (?SP) between an SP value (SPSi) of the organosilicon polymer particles and an SP value (SPSh) of the thermoplastic resin present in the shell layer is not more than 2.30.Type: GrantFiled: March 9, 2021Date of Patent: August 6, 2024Assignee: CANON KABUSHIKI KAISHAInventors: Koji Nishikawa, Yasuhiro Hashimoto, Yuujirou Nagashima, Tomoya Nagaoka
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Publication number: 20240245078Abstract: A food processing apparatus in the present disclosure includes a reaction tank, a stirring body, and catalyst-attached members. The reaction tank stores a liquid reactant for food. The stirring body stirs the reactant stored in the reaction tank by rotating. The catalyst-attached members each have an outer surface at which a photocatalyst is present. The food processing apparatus satisfies the following condition (I), the following condition (II), or the following conditions (I) and (II). (I) A diameter of a circle that is a track formed by an outermost end of the stirring body in a direction perpendicular to a rotation axis when the stirring body rotates is greater than or equal to a maximum dimension. (II) The stirring body pushes the reactant toward a bottom of the reaction tank in a direction parallel to the rotation axis Ax when the stirring body rotates.Type: ApplicationFiled: February 16, 2024Publication date: July 25, 2024Inventors: DAISUKE INO, KUNIHIRO UKAI, YASUHIRO HASHIMOTO, SATORU YAMAJI
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Patent number: 12027647Abstract: A semiconductor light-emitting element according to the present invention includes an n-type semiconductor layer, an active layer, a p-type semiconductor layer, and a p-electrode. The n-type semiconductor layer has a composition of AlGaN or AlInGaN. The active layer is formed on the n-type semiconductor layer. The active layer contains an AlGaN semiconductor or an AlInGaN semiconductor. The p-type semiconductor layer is formed on the active layer. The p-type semiconductor layer has a composition of AlN, AlGaN, or AlInGaN. The p-electrode is formed on the p-type semiconductor layer. The p-type semiconductor layer includes a contact layer formed on the p-electrode. The contact layer includes an AlGaN layer or an AlInGaN layer in which a band gap decreases toward an interface with the p-electrode. The contact layer includes a tunneling contact layer in contact with the p-electrode. The tunneling contact layer is connected to the p-electrode by a tunnel junction.Type: GrantFiled: October 7, 2019Date of Patent: July 2, 2024Assignee: STANLEY ELECTRIC CO., LTD.Inventors: Toshiyuki Obata, Yasuhiro Hashimoto
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Patent number: 11990564Abstract: A semiconductor light-emitting element according to the present invention includes an n-type semiconductor layer, an active layer, a p-type semiconductor layer, and a p-electrode. The n-type semiconductor layer has a composition of AlGaN or AlInGaN. The active layer is formed on the n-type semiconductor layer. The active layer contains an AlGaN semiconductor or an AlInGaN semiconductor. The p-type semiconductor layer is formed on the active layer. The p-type semiconductor layer has a composition of AlN, AlGaN, or AlInGaN. The p-electrode is formed on the p-type semiconductor layer. The p-type semiconductor layer includes a contact layer formed on the p-electrode. The contact layer includes an AlGaN layer or an AlInGaN layer in which a band gap decreases toward an interface with the p-electrode. The contact layer includes a tunneling contact layer in contact with the p-electrode. The tunneling contact layer is connected to the p-electrode by a tunnel junction.Type: GrantFiled: October 7, 2019Date of Patent: May 21, 2024Assignee: STANLEY ELECTRIC CO., LTD.Inventors: Toshiyuki Obata, Yasuhiro Hashimoto
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Patent number: 11934147Abstract: A toner comprising a toner particle comprising a binder resin and organosilicon polymer particles on a surface of the toner particle, wherein the binder resin comprising an amorphous resin and a crystalline polyester resin, an absolute value |SPcpes?SPsi| of a difference between an SP value (SPsi) of the organosilicon polymer particles and an SP value (SPcpes) of the crystalline polyester resin is not more than 2.00 (cal/cm3)1/2, and an amount of adsorbed water in the organosilicon polymer particles at a temperature of 30° C. and a humidity of 80% RH is not more than 20 mg/g.Type: GrantFiled: March 9, 2021Date of Patent: March 19, 2024Assignee: CANON KABUSHIKI KAISHAInventors: Yasuhiro Hashimoto, Koji Nishikawa, Yuujirou Nagashima, Tomoya Nagaoka
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Patent number: 11934146Abstract: A toner comprises a toner particle containing a resin component and a wax; and an inorganic fine particle on a surface of the toner particle, wherein in the cross section of the toner particle, domains including the wax are present in a region ranging from a surface of the toner particle to a depth of 600 nm from the surface, wherein when a percentage ratio of sum of areas of all the domains in the region with respect to an area of the region is R2, and when a percentage ratio of sum of areas of the domains having a major diameter of 10 to 120 nm in the region with respect to the area of the region is R1, R1 and R2 satisfy the following formulae (1) and (2): 2.0?R1(%)?15.0??formula(1) R1(%)/R2(%)?0.60??formula (2).Type: GrantFiled: August 10, 2021Date of Patent: March 19, 2024Assignee: CANON KABUSHIKI KAISHAInventors: Atsuhiko Ohmori, Takaaki Furui, Yasuhiro Hashimoto
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Publication number: 20230421029Abstract: Regarding a contact structure and a brush motor, wear resistance of a commutator and a brush and an insulating property of a slit is improved. The disclosed contact structure includes a commutator formed of phosphor bronze and containing at least tin ranging from 1.0% or more to 9.0% or less by mass; and a brush formed of copper carbon and provided to come into contact with the commutator.Type: ApplicationFiled: June 22, 2023Publication date: December 28, 2023Inventor: Yasuhiro HASHIMOTO
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Patent number: 11841680Abstract: A toner comprising: a toner particle containing a resin component and a wax; and an inorganic fine particle on the surface of the toner particle, wherein, in a cross section of the toner particle, domains containing the wax are observed, and when among the domains, domains having a major diameter of 10-300 nm are defined as domains S, an occupation area percentage of which a ratio of a total sum of areas occupied by the domains S in a region from a surface of the toner particle to a depth of 600 nm in the cross section with respect to an area of the region, is 3.0-15.0%, and wherein the inorganic fine particle contains a fine particle A having a volume resistivity of 1.0×103 to 3.0×105 ?·cm, and having a relative permittivity ?r of 100 or more.Type: GrantFiled: August 18, 2021Date of Patent: December 12, 2023Assignee: Canon Kabushiki KaishaInventors: Takaaki Furui, Atsuhiko Ohmori, Yasuhiro Hashimoto
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Patent number: 11809132Abstract: A toner is provided, which has a toner particle that contains a binder resin, and organosilicon polymer particle on a surface of the toner particle. A methanol concentration a (vol %) of the organosilicon polymer particle in a wettability test and a methanol concentration b (vol %) of the toner particle in a wettability test satisfy Expression (I) below: |a?b|?25??(I), and an adhesion index of the organosilicon polymer particle on a polycarbonate film, calculated on the basis of Expression (II) below, is not more than 3.5: Adhesion index=area ratio c of the organosilicon polymer particle having migrated to the polycarbonate film/coverage ratio d of the organosilicon polymer particle on the surface of the toner particle×100??(II).Type: GrantFiled: March 10, 2021Date of Patent: November 7, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Yuujirou Nagashima, Yasuhiro Hashimoto, Koji Nishikawa, Tomoya Nagaoka, Shuntaro Watanabe, Hiroki Akiyama, Hiroki Kagawa
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Publication number: 20230332078Abstract: A method for operating a food processing apparatus is provided. The food processing apparatus includes a reaction vessel that has a space that accumulates a liquid reactant used for a food product; a catalytic reactor that includes a reaction tube and a light source; and an introducing tube for introducing the reactant into the reaction vessel. The reaction tube has an outer surface where a photocatalyst is provided. The reaction tube transmits light. The light source generates heat at a time of light emission in which the light source emits light from an inner side of the reaction tube. The method for operating the food processing apparatus includes introducing the reactant into the reaction vessel from the introducing tube. In the introducing, the reactant is introduced up to a position at which a liquid surface of the reactant is positioned higher than an opening portion of the introducing tube.Type: ApplicationFiled: June 12, 2023Publication date: October 19, 2023Inventors: KUNIHIRO UKAI, DAISUKE INO, YASUHIRO HASHIMOTO, HIDENOBU WAKITA, SATORU YAMAJI