Patents by Inventor Tetsuya Aoki
Tetsuya Aoki 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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Publication number: 20260149292Abstract: A battery control system includes: pressure application means that applies pressure to a battery module by pressing the battery module along a stacking direction of battery cells having a negative electrode including a solid electrolyte and lithium; a controller that adjusts the value of the pressure by controlling the pressure application means; and discharge means that executes balancing of remaining discharge capacities among the battery cells in the battery module; wherein the controller starts a first pressurization control for increasing the pressure by the pressure application means to a predetermined pressure or higher before the balancing is started.Type: ApplicationFiled: October 21, 2022Publication date: May 28, 2026Inventor: Tetsuya Aoki
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Patent number: 12636773Abstract: A robot has a first pulley that is fixed to a rotation shaft of a motor, a second pulley that is fixed to a spline nut, an intermediate pulley that is supported by a support member and that rotates around a fourth rotation axis with respect to the second arm, a first belt that is wound around the first pulley and the intermediate pulley, and a second belt that is wound around the intermediate pulley and the second pulley, the intermediate pulley has a first intermediate pulley around which the first belt is wound, a second intermediate pulley around which the second belt is wound, and a shaft portion that couples the first intermediate pulley and the second intermediate pulley, the first intermediate pulley has a recess portion that is open to a surface on a second intermediate pulley side and into which the shaft portion is inserted.Type: GrantFiled: March 27, 2025Date of Patent: May 26, 2026Assignee: SEIKO EPSON CORPORATIONInventor: Tetsuya Aoki
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Publication number: 20250303551Abstract: A robot has a first pulley that is fixed to a rotation shaft of a motor, a second pulley that is fixed to a spline nut, an intermediate pulley that is supported by a support member and that rotates around a fourth rotation axis with respect to the second arm, a first belt that is wound around the first pulley and the intermediate pulley, and a second belt that is wound around the intermediate pulley and the second pulley, the intermediate pulley has a first intermediate pulley around which the first belt is wound, a second intermediate pulley around which the second belt is wound, and a shaft portion that couples the first intermediate pulley and the second intermediate pulley, the first intermediate pulley has a recess portion that is open to a surface on a second intermediate pulley side and into which the shaft portion is inserted.Type: ApplicationFiled: March 27, 2025Publication date: October 2, 2025Inventor: Tetsuya AOKI
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Publication number: 20250038548Abstract: A battery control system includes a discharge mechanism and a controller. The discharge mechanism performs balancing of residual discharge capacities among secondary batteries by discharging a battery having a residual discharge capacity greater than a residual discharge capacity of another battery in a battery group that includes a plurality of the batteries whose open circuit voltage at charge is greater than open circuit voltage at discharge. The controller executes pre-discharge that discharges the battery by at least the amount of power that causes the open circuit voltage to switch from the open circuit voltage at charge to the open circuit voltage at discharge prior to the balancing. The discharge mechanism performs the balancing based on a voltage of the battery after the pre-discharge is executed by the controller.Type: ApplicationFiled: October 17, 2022Publication date: January 30, 2025Inventors: Tetsuya Aoki, Toshikazu Kotaka
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Patent number: 12066852Abstract: A neutral return mechanism includes an interlocking shaft to be pushed and pulled in an axial direction in conjunction with a swinging operation of an operation member; a housing member to support the interlocking shaft such that the interlocking shaft is movable in the axial direction and accommodate the interlocking shaft such that one of opposite end portions thereof protrudes; a neutral return spring to return the interlocking shaft from a post-movement position to an initial position, the neutral return spring being accommodated in the housing member such that the neutral return spring extends in the axial direction of the interlocking shaft, wherein the housing member includes a supported portion between a spring accommodation portion in which the neutral return spring is accommodated and a protrusion opening through which the interlocking shaft protrudes, the supported portion being supported at a bracket member.Type: GrantFiled: June 2, 2023Date of Patent: August 20, 2024Assignees: KUBOTA CORPORATION, KYB CORPORATIONInventors: Hiroshi Horii, Tetsuya Aoki, Hirotaka Kobayashi
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Patent number: 11881341Abstract: Disclosed is a method of manufacturing a core sheet. The core sheet has an annular core back portion and a plurality of tooth portions extending from the core back portion toward a radial center thereof. The method includes a blanking step, a rolling step and a removing step. In the removing step, an insulation coating, which is on a region of a grain-oriented magnetic steel sheet for forming a band-shaped core back portion, on a band-shaped core back portion of a sheet piece or on the core back portion of the core sheet, is at least partially removed.Type: GrantFiled: March 31, 2020Date of Patent: January 23, 2024Assignees: DENSO CORPORATION, NIPPON STEEL CORPORATIONInventors: Tetsuya Aoki, Makoto Taniguchi, Atsuo Ishizuka, Satoshi Doi, Keiichi Okazaki, Hiroshi Fujimura, Tatsuya Takase
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Publication number: 20230324944Abstract: A neutral return mechanism includes an interlocking shaft to be pushed and pulled in an axial direction in conjunction with a swinging operation of an operation member; a housing member to support the interlocking shaft such that the interlocking shaft is movable in the axial direction and accommodate the interlocking shaft such that one of opposite end portions thereof protrudes; a neutral return spring to return the interlocking shaft from a post-movement position to an initial position, the neutral return spring being accommodated in the housing member such that the neutral return spring extends in the axial direction of the interlocking shaft, wherein the housing member includes a supported portion between a spring accommodation portion in which the neutral return spring is accommodated and a protrusion opening through which the interlocking shaft protrudes, the supported portion being supported at a bracket member.Type: ApplicationFiled: June 2, 2023Publication date: October 12, 2023Applicants: KUBOTA CORPORATION, KYB CORPORATIONInventors: Hiroshi HORII, Tetsuya AOKI, Hirotaka KOBAYASHI
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Patent number: 11333265Abstract: An electromagnetic valve used in a fuel system, in which at least a portion of a member constituting an magnetic circuit in an electromagnetic drive unit includes 0.15-0.45 mass % (inclusive) Ni, 0.65-1.0 mass % (inclusive) Al, 9.2-10.3 mass % (inclusive) Cr, and 0.90-1.6 mass % (inclusive) Mo, and the remainder comprises an alloy material comprising Fe and unavoidable impurities. The alloy material may further include 0.05-0.15 mass % (inclusive) Pb.Type: GrantFiled: August 30, 2018Date of Patent: May 17, 2022Assignees: DAIDO STEEL CO., LTD., DENSO CORPORATIONInventors: Akihiko Saito, Takeshi Takano, Yu Nakama, Satoshi Doi, Takeshi Senoo, Tetsuya Aoki, Masatsune Ozawa, Makoto Saizen
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Patent number: 11169337Abstract: An optical module includes at least one optical sub-assembly; at least one control circuit configured to control the at least one optical sub-assembly; and a housing including a first case and a second case, wherein the optical module is configured to be plugged in and unplugged from an optical transmission equipment including a heat sink provided at a joining portion with the first case, wherein, through fitting of the first case and the second case, the housing accommodates the at least one optical sub-assembly and the at least one control circuit inside the housing, and wherein a material of the first case has a thermal conductivity higher than a material of the second case.Type: GrantFiled: March 30, 2020Date of Patent: November 9, 2021Assignee: Lumentum Japan, Inc.Inventors: Hiroyoshi Ishii, Tetsuya Aoki, Koichi Takahashi
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Patent number: 11054473Abstract: A state estimation device for a fuel cell for generating power upon receiving the supply of anode gas and cathode gas, comprising: an internal impedance measurement unit configured to measure an internal impedance of the fuel cell on the basis of an alternating-current signal of a predetermined frequency output from the fuel cell; a state quantity preliminary estimation value calculation unit configured to calculate a first preliminary estimation value for a state quantity of an electrode obtained from a real component of a measurement value of the internal impedance and a second preliminary estimation value for the state quantity of the electrode obtained from an imaginary component of the measurement value of the internal impedance; and a state quantity final estimation value determination unit configured to determine a final estimation value of the state quantity of the electrode on the basis of the calculated first and second preliminary estimation values.Type: GrantFiled: October 30, 2014Date of Patent: July 6, 2021Assignee: NISSAN MOTOR CO., LTD.Inventor: Tetsuya Aoki
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Patent number: 10971742Abstract: In a fuel cell state determination method for determining an internal state of a fuel cell supplied with an anode gas and a cathode gas to generate electricity, a decrease of a reaction resistance value of the cathode caused by hydrogen evolution reaction generated in the cathode as the fuel cell has an oxygen deficiency state is detected, and the oxygen deficiency state is determined on the basis of detection of the decrease of the reaction resistance value.Type: GrantFiled: October 5, 2015Date of Patent: April 6, 2021Assignee: NISSAN MOTOR CO., LTD.Inventor: Tetsuya Aoki
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Patent number: 10847820Abstract: A fuel cell system for generating power by supplying a reaction gas to a fuel cell includes a wet state detection unit configured to detect a wet state of an electrolyte membrane of the fuel cell, a steady time target wet state setting unit configured to set a steady time target wet state of the electrolyte membrane during a steady operation of the fuel cell system based on an operating condition of the fuel cell system, and a transient time target wet state setting unit configured to set a transient time target wet state so that the wet state of the electrolyte membrane gradually changes from a wet state detected before a transient operation starts to the steady time target wet state during the transient operation in which the operating condition of the fuel cell system changes.Type: GrantFiled: February 23, 2012Date of Patent: November 24, 2020Assignee: NISSAN MOTOR CO., LTD.Inventor: Tetsuya Aoki
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Publication number: 20200340598Abstract: According to the present invention, there is provided an electromagnetic valve used in a fuel system, in which at least a portion of a member constituting an magnetic circuit in an electromagnetic drive unit includes 0.15-0.45 mass % (inclusive) Ni, 0.65-1.0 mass % (inclusive) Al, 9.2-10.3 mass % (inclusive) Cr, and 0.90-1.6 mass % (inclusive) Mo, and the remainder comprises an alloy material comprising Fe and unavoidable impurities. The alloy material may further include 0.05-0.15 mass % (inclusive) Pb.Type: ApplicationFiled: August 30, 2018Publication date: October 29, 2020Inventors: Akihiko SAITO, Takeshi TAKANO, Yu NAKAMA, Satoshi DOI, Takeshi SENOO, Tetsuya AOKI, Masatsune OZAWA, Makoto SAIZEN
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Publication number: 20200326494Abstract: An optical module includes at least one optical sub-assembly; at least one control circuit configured to control the at least one optical sub-assembly; and a housing including a first case and a second case, wherein the optical module is configured to be plugged in and unplugged from an optical transmission equipment including a heat sink provided at a joining portion with the first case, wherein, through fitting of the first case and the second case, the housing accommodates the at least one optical sub-assembly and the at least one control circuit inside the housing, and wherein a material of the first case has a thermal conductivity higher than a material of the second case.Type: ApplicationFiled: March 30, 2020Publication date: October 15, 2020Inventors: Hiroyoshi ISHII, Tetsuya AOKI, Koichi TAKAHASHI
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Patent number: 10749416Abstract: A method is for manufacturing a core plate having an annular core back and teeth extending from the core back toward the center. The core plate is obtained by performing a punching step, a winding step, a straining step and an annealing step. At the straining step, compressive strain is applied to the core back or the band-shaped core back that is to be the core back after winding. At the annealing step, the core back or the band-shaped core back is annealed to be recrystallized after the applying of strain.Type: GrantFiled: January 17, 2019Date of Patent: August 18, 2020Assignees: DENSO CORPORATION, NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Tetsuya Aoki, Takeshi Senoo, Keiichi Okazaki, Satoshi Doi, Hiroshi Fujimura, Hiroaki Sato
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Publication number: 20200234870Abstract: Disclosed are a core sheet and a manufacturing method thereof. The core sheet has an annular core back portion and a plurality of tooth portions extending from the core back portion toward a radial center thereof. The core sheet is obtained by performing a blanking step, a rolling step and a removing step. In the removing step, an insulation coating, which is on a region of a grain-oriented magnetic steel sheet for forming a band-shaped core back portion, on a band-shaped core back portion of a sheet piece or on the core back portion of the core sheet, is at least partially removed.Type: ApplicationFiled: March 31, 2020Publication date: July 23, 2020Inventors: Tetsuya AOKI, Makoto TANIGUCHI, Atsuo ISHIZUKA, Satoshi DOI, Keiichi OKAZAKI, Hiroshi FUJIMURA, Tatsuya TAKASE
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Publication number: 20200153008Abstract: In a fuel cell state determination method for determining an internal state of a fuel cell supplied with an anode gas and a cathode gas to generate electricity, a decrease of a reaction resistance value of the cathode caused by hydrogen evolution reaction generated in the cathode as the fuel cell has an oxygen deficiency state is detected, and the oxygen deficiency state is determined on the basis of detection of the decrease of the reaction resistance value.Type: ApplicationFiled: October 5, 2015Publication date: May 14, 2020Applicant: NISSAN MOTOR CO., LTD.Inventor: Tetsuya AOKI
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Patent number: 10640875Abstract: A wet type processing apparatus includes a processing bath for reserving inside the processing liquid and rendering the resin film pass through the processing liquid; a pair of conveyance members arranged on a loading side for the resin film of the processing bath and on a delivery side for resin film of the processing bath at a position higher than a liquid surface of the processing liquid reserved in the processing bath; and a spouting unit arranged between the pair of the conveyance members at a position lower than the conveyance members and formed with a circumferential surface having plural holes for spouting the processing liquid from the circumferential surface to change a direction of the resin film along the circumferential surface in a non-contact manner in the processing liquid according to spouted flows from the holes.Type: GrantFiled: January 12, 2016Date of Patent: May 5, 2020Assignees: JCU CORPORATION, CHUO KIKAI CO., LTDInventors: Makoto Kohtoku, Yaichiro Nakamaru, Yukio Shinozaki, Tetsuya Aoki, Takashi Matsukura, Goki Hashimoto
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Patent number: 10530287Abstract: An electric power adjustment system includes a fuel cell connected to a load, and a multi-phase converter connected between the fuel cell and the load. The multi-phase converter is constituted of a plurality of phases and converts an output voltage from the fuel cell by a predetermined required voltage ratio. The electric power adjustment system includes a ripple current characteristic switching unit configured to switch a ripple current characteristic with respect to an input current to the multi-phase converter by changing at least one of a drive phase number and the voltage ratio of the multi-phase converter according to an operation state of the fuel cell and a required electric power of the load.Type: GrantFiled: March 6, 2015Date of Patent: January 7, 2020Assignee: NISSAN MOTOR CO., LTD.Inventors: Michihiko Matsumoto, Hideo Yoshida, Tetsuya Aoki
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Patent number: 10307713Abstract: The invention provides cleaning agents, cleaning liquids and cleaning methods that effectively remove contaminants which are impossible to remove sufficiently with conventional cleaning liquids at the occurrence of a decrease in performances such as permeation flux and salt rejection rate due to contamination of permeable membranes, in particular aromatic polyamide RO membranes used in water treatment. Permeable membranes are cleaned with a cleaning liquid which is an aqueous solution including a chloramine compound and an alkali agent and having a pH of 10 or above. The chloramine compound is preferably one obtained by mixing a compound having a primary amino group with hypochlorous acid and/or a hypochlorite.Type: GrantFiled: April 9, 2013Date of Patent: June 4, 2019Assignee: KURITA WATER INDUSTRIES LTD.Inventors: Tetsuya Aoki, Takahiro Kawakatsu, Kunihiro Hayakawa