Patents by Inventor Takuma Sakai
Takuma Sakai 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: 11959944Abstract: A current sensor includes an electrical-conduction member, a magnetoelectric converter and a shield. The shield includes a first shield and a second shield arranged such that surfaces are opposed to and spaced away from each other. A part of the electrical-conduction member and the magnetoelectric converter are located between the surface of the first shield and the surface of the second shield. The part of the electrical-conduction member located between the first shield and the second shield extends in an extension direction along the surface of the second shield. The second shield has two sides aligned in a lateral direction perpendicular to the extension direction, and has a plurality of extending parts extending toward the first shield at the sides and being aligned with and separated from each other in the extension direction. The magnetoelectric converter is located between the plurality of extending parts.Type: GrantFiled: June 22, 2022Date of Patent: April 16, 2024Assignee: DENSO CORPORATIONInventors: Takuma Esaka, Ryosuke Sakai, Hiroaki Miwa
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Patent number: 11953526Abstract: A current sensor includes a wiring board, a shield, an insulating sensor housing, and a shield adhesive. The wiring board and the shield are accommodated in the sensor housing. The sensor housing has a shield support part to support the shield, and a shield adhesion part. An application surface of the shield adhesion part is further from the shield than a contact surface of the shield support part. The shield is mounted on the contact surface of the shield support part, and the shield adhesive is disposed between the application surface of the shield adhesion part and the shield. The shield and the wiring board are aligned with and spaced from each other in the sensor housing.Type: GrantFiled: June 27, 2022Date of Patent: April 9, 2024Assignee: DENSO CORPORATIONInventors: Akito Sasaki, Ryosuke Sakai, Hiroaki Miwa, Takeshi Tsukamoto, Hiroshi Nomura, Takuma Esaka, Tatsuaki Sugito
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Patent number: 11948794Abstract: Provided is a method of manufacturing a silicon carbide epitaxial wafer appropriate for suppressing an occurrence of a triangular defect. A method of manufacturing a silicon carbide epitaxial wafer includes: an etching process of etching a surface of a silicon carbide substrate at a first temperature using etching gas including H2; a process of flattening processing of flattening the surface etched in the etching process, at a second temperature using gas including H2 gas, first Si supply gas, and first C supply gas; and an epitaxial layer growth process of performing an epitaxial growth on the surface flattened in the process of flattening processing, at a third temperature using gas including second Si supply gas and second C supply gas, wherein the first temperature T1, the second temperature T2, and the third temperature T3 satisfy T1>T2>T3.Type: GrantFiled: April 27, 2021Date of Patent: April 2, 2024Assignee: Mitsubishi Electric CorporationInventors: Masashi Sakai, Takuma Mizobe, Takuyo Nakamura
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Patent number: 11926492Abstract: A linear transport apparatus includes a transport cart, a first roller that rotates about a first rotation shaft extending from the transport cart along a first direction, a second roller that rotates about a second rotation shaft extending from the transport cart and forming an acute angle with the first rotation shaft, and a rail sandwiched between the first and second rollers to extend along a track on which the transport cart moves. The rail includes a first contact portion coming contact with the first roller and restricting movement of the transport cart in a second direction perpendicular to a direction in which the rail extends and the first direction, and a second contact portion that comes into contact with the second roller and is parallel to the second rotation shaft, and the rail includes a portion in which curvature of the track moves is different from another portion.Type: GrantFiled: June 17, 2021Date of Patent: March 12, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takuma Nakamura, Shin Sakai, Masaoki Iwase, Kazuhiko Fukushima
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Patent number: 11897573Abstract: An operating device for a human-powered vehicle comprises a base member, an operating member, a first substrate, and a second substrate. The operating member is movably coupled to the base member. The first substrate is provided to one of the base member and the operating member. The second substrate is provided to the one of the base member and the operating member. The second substrate is separate from the first substrate.Type: GrantFiled: November 17, 2020Date of Patent: February 13, 2024Assignee: SHIMANO INC.Inventors: Ayako Takahashi, Takuma Sakai, Yasuyuki Komada, Yusuke Nishikawa, Kentaro Kosaka, Takaya Masuda, Katsuhiro Tachibana, Shun Kakehashi, Yuichiro Hidaka, Fumihide Numata
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Publication number: 20240038750Abstract: A semiconductor module includes: first and second switching devices coupled in series; a casing housing the first and second switching devices, and having first to fourth edges respectively on first to forth edge sides thereof; positive and negative terminals provided on the first edge side of the casing; an output terminal provided on the second edge side of the casing; a first control terminal and a first sense terminal for the first switching device, and a second control terminal and a second sense terminal for the second switching device, all provided on the third edge side of the casing; first and second conductive patterns respectively coupled to the positive terminal and the output terminal, and on which the first and second switching device are respectively arranged; and a third conductive pattern coupled to the negative terminal and the second switching device, on a side corresponding to the fourth edge side.Type: ApplicationFiled: June 28, 2023Publication date: February 1, 2024Applicant: FUJI ELECTRIC CO., LTD.Inventors: Takuma SAKAI, Seiki IGARASHI
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Patent number: 11827306Abstract: An electrical switch device includes an electrical switch unit, a wireless communicator, a power source, an electrical cable, and a connecting part. The electrical switch unit is at least partly disposed outside of a handlebar. The wireless communicator is inserted to an internal space of the handlebar. The power source and the wireless communicator are separated away from the electrical switch unit and arranged at different positions from the electrical switch unit. The electrical cable is configured to electrically connect the electrical switch unit to the wireless communicator and the power supply. The connecting part is electrically connected to the electrical cable. The connecting part is configured to electrically and detachably connect the electrical switch unit to the wireless communicator and the power supply.Type: GrantFiled: November 23, 2022Date of Patent: November 28, 2023Assignee: SHIMANO INC.Inventors: Akihiko Syouge, Takuma Sakai, Kazuma Mori, Yasuyuki Komada, Takehiko Nakajima, Noor Ashyikkin Binti Mohd Noor
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Publication number: 20230271668Abstract: An operating device comprises a base and an operating member. The base includes a base body and a cover. The cover includes an upper outer surface, a first lateral outer surface, a second lateral outer surface, a first shoulder, and a second shoulder. The first shoulder is provided between the upper outer surface and the first lateral outer surface. The first shoulder includes a first curved surface connecting the upper outer surface and the first lateral outer surface. The second shoulder is provided between the upper outer surface and the second lateral outer surface. The second shoulder includes a second curved surface connecting the upper outer surface and the second lateral outer surface. The first curved surface is gentler than the second curved surface as viewed in a longitudinal direction.Type: ApplicationFiled: February 25, 2022Publication date: August 31, 2023Applicant: SHIMANO INC.Inventors: Hayata MIZUTANI, Takuma SAKAI, Shun KAKEHASHI, Yuichiro HIDAKA, Hiroshi MATSUMOTO
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Publication number: 20230085765Abstract: An operating device for a human-powered vehicle includes a base member and an operating member. The base member includes a first end portion, a second end portion, a base body, and an accommodating structure. The first end portion is configured to be coupled to a handlebar. The second end portion is opposite to the first end portion. The base body is configured to accommodate at least one of a hydraulic unit. The accommodating structure is configured to accommodate at least one of circuitry accommodating part and a power-supply accommodating part. The operating member is pivotally coupled to the base member about a pivot axis. The accommodating structure is a separate member from the base body. The accommodating structure is detachably attached to the base body at the second end portion.Type: ApplicationFiled: November 23, 2022Publication date: March 23, 2023Applicant: SHIMANO INC.Inventors: Yasuyuki KOMADA, Takaya MASUDA, Takuma SAKAI, Yuichiro HIDAKA, Shun KAKEHASHI
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Publication number: 20230093210Abstract: An electrical switch device includes an electrical switch unit, a wireless communicator, a power source, an electrical cable, and a connecting part. The electrical switch unit is at least partly disposed outside of a handlebar. The wireless communicator is inserted to an internal space of the handlebar. The power source and the wireless communicator are separated away from the electrical switch unit and arranged at different positions from the electrical switch unit. The electrical cable is configured to electrically connect the electrical switch unit to the wireless communicator and the power supply. The connecting part is electrically connected to the electrical cable. The connecting part is configured to electrically and detachably connect the electrical switch unit to the wireless communicator and the power supply.Type: ApplicationFiled: November 23, 2022Publication date: March 23, 2023Applicant: SHIMANO INC.Inventors: Akihiko SYOUGE, Takuma SAKAI, Kazuma MORI, Yasuyuki KOMADA, Takehiko NAKAJIMA, Noor Ashyikkin BINTI MOHD NOOR
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Patent number: 11554834Abstract: An operating system for a human-powered vehicle comprises a first operating device, a second operating device, a first user interface, and a second user interface. The first operating device comprises a first base member and a first operating member. The second operating device comprises a second base member and a second operating member. The first user interface is configured to receive a first user input and mounted to the first operating device. The second user interface is configured to receive a second user input and mounted to the second operating device. At least one of the first user interface and the second user interface is configured to be operated to control an assist driving unit configured to assist a human power.Type: GrantFiled: July 29, 2019Date of Patent: January 17, 2023Assignee: SHIMANO INC.Inventors: Toshio Tetsuka, Taihei Nishihara, Eiji Mishima, Takuma Sakai, Takafumi Nishino, Takehiko Nakajima
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Patent number: 11548586Abstract: An operating device for a human-powered vehicle comprises a base member and an operating member. The base member extends in a longitudinal direction. The base member includes a first end portion, a second end portion, and an accommodating structure. The first end portion is configured to be coupled to a handlebar. The second end portion is opposite to the first end portion in the longitudinal direction. The accommodating structure is provided to the second end portion. The operating member is pivotally coupled to the base member about a pivot axis. The accommodating structure is disposed at a location which is the farthest from the first end portion in the second end portion along the longitudinal direction as viewed along the pivot axis. The accommodating structure includes an accommodating part configured to accommodate at least one of a power supply and circuitry.Type: GrantFiled: November 13, 2019Date of Patent: January 10, 2023Assignee: SHIMANO INC.Inventors: Yasuyuki Komada, Takaya Masuda, Takuma Sakai, Yuichiro Hidaka, Shun Kakehashi
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Patent number: 11535334Abstract: An electrical switch device for a human-powered vehicle comprises an electrical switch unit and a connecting part. The electrical switch unit is configured to generate a signal in response to a user input. The connecting part is provided on the electrical switch unit so as to electrically connect an additional electrical switch device to the electrical switch device. The electrical switch device is configured to selectively transmit the signal from the electrical switch unit and an additional signal from the additional electrical switch device to an operating device configured to operate the electric component.Type: GrantFiled: March 28, 2019Date of Patent: December 27, 2022Assignee: SHIMANO INC.Inventors: Akihiko Syouge, Takuma Sakai, Kazuma Mori, Yasuyuki Komada, Takehiko Nakajima, Noor Ashyikkin Binti Mohd Noor
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Patent number: 11472510Abstract: An electric device for a human-powered vehicle comprises an accommodating structure. The accommodating structure includes a main body, an attachment member, and a power-supply accommodating part. The attachment member is configured to be attached to the main body. The power-supply accommodating part is provided at least one of the main body and the attachment member so as to accommodate a power supply, the power-supply accommodating part including an insertion opening and a first inner surface. The first inner surface extends along a reference plane and having a first outline defining a first area as viewed in a direction perpendicular to the reference plane. The insertion opening extends along an insertion opening plane non-parallel to the reference plane. The insertion opening has an opening outline defining an insertion opening area as viewed in a direction perpendicular to the insertion opening plane. The first area is larger than the insertion opening area.Type: GrantFiled: November 13, 2019Date of Patent: October 18, 2022Assignee: SHIMANO INC.Inventors: Yasuyuki Komada, Takuma Sakai, Yuichiro Hidaka, Shun Kakehashi, Kazuma Mori
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Publication number: 20220306242Abstract: A control system is provided for a control device of a human-powered vehicle. The control system includes a first operating device, a second operating device, a wireless communication unit and a control unit. The first operating device includes a first base, a first operating member, a first handlebar and a first electrical switch unit. The second operating device includes a second base, a second handlebar attachment and a second electrical switch unit. The second operating device is electrically connected to the first operating device. The wireless communication unit is electrically connected to the first operating device and the second operating device. The control unit is configured to selectively control the wireless communication unit to establish wireless communication with an operated device in accordance with a control state of the control unit.Type: ApplicationFiled: March 2, 2022Publication date: September 29, 2022Inventors: Ayako TAKAHASHI, Takuma SAKAI, Yasuyuki KOMADA, Takaya MASUDA
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Patent number: 11425472Abstract: An operating device for a human-powered vehicle comprises a base member and circuitry. The base member includes a power-supply accommodating part configured to accommodate a power supply extending along a reference plane. The circuitry is provided to the base member to extend along an additional reference plane intersecting with the reference plane.Type: GrantFiled: November 13, 2019Date of Patent: August 23, 2022Assignee: SHIMANO INC.Inventors: Yasuyuki Komada, Takuma Sakai, Yuichiro Hidaka, Shun Kakehashi, Kazuma Mori
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Patent number: 11396343Abstract: An operating device for a human-powered vehicle comprises a base member and an operating member. The base member extends in a longitudinal direction. The base member includes a first end portion and a second end portion. The first end portion has a coupling surface configured to be coupled to a handlebar. The second end portion includes a pommel portion and an end surface extending from the pommel portion. The end surface is arranged on a reverse side of the coupling surface in the longitudinal direction. The operating member is movably coupled to the base member about a pivot axis between a rest position and an operated position. The operating member extends from a proximal end portion to a distal end portion in an extending direction. The indicator is configured to indicate information relating to the human-powered vehicle. The indicator is provided to the end surface.Type: GrantFiled: May 1, 2020Date of Patent: July 26, 2022Assignee: SHIMANO INC.Inventors: Yasuyuki Komada, Shun Kakehashi, Takuma Sakai
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Publication number: 20220227458Abstract: An operating system comprises a first operating device, a second operating device, a first user interface, a second user interface, and a controller. The first user interface is configured to receive a first user input. The second user interface is configured to receive a second user input. At least one of the first user interface and the second user interface is configured to be operated to control at least one electric component. The controller is configured to control the at least one electric component based on at least one of the first user input and the second user input. The at least one electric component includes at least one of a gear changing unit, a gear changing unit, an adjustable seatpost, an internal gear hub, a front suspension, a rear suspension, a cycle computer, a smartphone, a tablet computer, and a light emitting device.Type: ApplicationFiled: April 6, 2022Publication date: July 21, 2022Applicant: SHIMANO INC.Inventors: Toshio TETSUKA, Taihei NISHIHARA, Eiji MISHIMA, Takuma SAKAI, Takafumi NISHINO, Takehiko NAKAJIMA
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Patent number: 11390353Abstract: An operating device for a human-powered vehicle comprises a base member and an operating member. The base member extends in a longitudinal direction. The base member includes a first end portion and a second end portion. The second end portion includes a cover portion provided on a reverse side of the first end portion in the longitudinal direction. The operating member includes an outer surface configured to face away from the first end portion in a rest state where the operating member is in a rest position. The cover portion is configured to be arranged on a pivotal movement track of the operating member so as to at least partly overlap with the outer surface of the operating member in the rest state as viewed in the longitudinal direction.Type: GrantFiled: May 1, 2020Date of Patent: July 19, 2022Assignee: SHIMANO INC.Inventors: Yuichiro Hidaka, Takuma Sakai, Yasuyuki Komada, Shun Kakehashi
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Publication number: 20220063755Abstract: An operating device for a human-powered vehicle comprises a base member, an operating member, a first substrate, and a second substrate. The operating member is movably coupled to the base member. The first substrate is provided to one of the base member and the operating member. The second substrate is provided to the one of the base member and the operating member. The second substrate is separate from the first substrate.Type: ApplicationFiled: November 17, 2020Publication date: March 3, 2022Applicant: SHIMANO INC.Inventors: Ayako TAKAHASHI, Takuma SAKAI, Yasuyuki KOMADA, Yusuke NISHIKAWA, Kentaro KOSAKA, Takaya MASUDA, Katsuhiro Tachibana, Shun Kakehashi, Yuichiro Hidaka, Fumihide Numata