Patents by Inventor Yasuhiko Kondo
Yasuhiko Kondo 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: 11606044Abstract: The present power conversion device includes an inverter, a step-up/down converter, a first capacitor, a second capacitor, a voltage sensor, a control device, and a backup power supply. The auxiliary device is connected between the first DC power supply and the step-up/down converter, and the control device includes an abnormality determination unit configured to determine that an abnormality has occurred when a control voltage is equal to or lower than a first threshold value, and a control unit configured to execute discharge control when the abnormality determination unit determines that the abnormality has occurred and an inter-terminal voltage measured by the voltage sensor is equal to or lower than a second threshold value.Type: GrantFiled: September 30, 2020Date of Patent: March 14, 2023Assignee: HITACHI ASTEMO, LTD.Inventors: Nobukatsu Yamaguchi, Yuta Nakamura, Yasuhiko Kondo
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Patent number: 11404989Abstract: A power supply system (1) includes: a drive motor (M) coupled to drive wheels (W); a first inverter (23) which converts DC electric power into three-phase AC electric power; a first current sensor (23I) which generates a current detection signal according to electrical current flowing in the first inverter (23), and a system ECU (8) which executes discharge control for discharging electrical charge of a second smoothing capacitor (C2) connected to the first inverter (23), in a case of a discharge start condition being established. The system ECU (8), in a case of the drive motor (M) rotating upon starting the discharge control, executes the discharge control, after executing three-phase short-circuit control to turn ON all switching elements of an upper arm or all switching elements of a lower arm of the three-phase arm of the first inverter (23), based on the current detection signal of the sensor (23I).Type: GrantFiled: October 23, 2020Date of Patent: August 2, 2022Assignees: HONDA MOTOR CO., LTD., HITACHI ASTEMO, LTD.Inventors: Yasuhiko Kondo, Yuta Nakamura, Nobukatsu Yamaguchi
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Patent number: 11171505Abstract: An electric power control device includes: an ECU; a DC power supply; a backup power supply which has a control power supply as an operation source, supplies electric power to the ECU when an electric power supply from a battery to the ECU is stopped, and supplies electric power to the DC power supply when an electric power supply from the battery to the DC power supply is stopped; a first ground line connected to a ground terminal of the DC power supply; a second ground line connected to a ground terminal of the backup power supply; a current path formation unit which electrically connects the first ground line to the second ground line and forms a path in which a current flows from the first ground line to the second ground line in one direction; and a noise minimizing component connected to the current path formation unit in series.Type: GrantFiled: September 3, 2020Date of Patent: November 9, 2021Assignees: KEIHIN CORPORATION, HONDA MOTOR CO., LTD.Inventors: Kazuya Sugano, Kazutaka Senoo, Koji Suzuki, Yasuhiko Kondo, Yasushi Hori
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Publication number: 20210288604Abstract: A power supply system (1) includes: a drive motor (M) coupled to drive wheels (W); a first inverter (23) which converts DC electric power into three-phase AC electric power; a first current sensor (23I) which generates a current detection signal according to electrical current flowing in the first inverter (23), and a system ECU (8) which executes discharge control for discharging electrical charge of a second smoothing capacitor (C2) connected to the first inverter (23), in a case of a discharge start condition being established. The system ECU (8), in a case of the drive motor (M) rotating upon starting the discharge control, executes the discharge control, after executing three-phase short-circuit control to turn ON all switching elements of an upper arm or all switching elements of a lower arm of the three-phase arm of the first inverter (23), based on the current detection signal of the sensor (23I).Type: ApplicationFiled: October 23, 2020Publication date: September 16, 2021Inventors: Yasuhiko KONDO, Yuta NAKAMURA, Nobukatsu YAMAGUCHI
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Publication number: 20210104955Abstract: The present power conversion device includes an inverter, a step-up/down converter, a first capacitor, a second capacitor, a voltage sensor, a control device, and a backup power supply. The auxiliary device is connected between the first DC power supply and the step-up/down converter, and the control device includes an abnormality determination unit configured to determine that an abnormality has occurred when a control voltage is equal to or lower than a first threshold value, and a control unit configured to execute discharge control when the abnormality determination unit determines that the abnormality has occurred and an inter-terminal voltage measured by the voltage sensor is equal to or lower than a second threshold value.Type: ApplicationFiled: September 30, 2020Publication date: April 8, 2021Inventors: Nobukatsu YAMAGUCHI, Yuta NAKAMURA, Yasuhiko KONDO
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Publication number: 20210075250Abstract: An electric power control device includes: an ECU; a DC power supply; a backup power supply which has a control power supply as an operation source, supplies electric power to the ECU when an electric power supply from a battery to the ECU is stopped, and supplies electric power to the DC power supply when an electric power supply from the battery to the DC power supply is stopped; a first ground line connected to a ground terminal of the DC power supply; a second ground line connected to a ground terminal of the backup power supply; a current path formation unit which electrically connects the first ground line to the second ground line and forms a path in which a current flows from the first ground line to the second ground line in one direction; and a noise minimizing component connected to the current path formation unit in series.Type: ApplicationFiled: September 3, 2020Publication date: March 11, 2021Inventors: Kazuya SUGANO, Kazutaka SENOO, Koji SUZUKI, Yasuhiko KONDO, Yasushi HORI
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Patent number: 10804792Abstract: A control device of a rotary electric machine capable of preventing occurrence of electrical resonance when a conversion operation abnormality of a DC voltage converter occurs is provided. In a case that the DC voltage converter stops a conversion operation and the conversion operation abnormality that input/output voltages become equal occurs, when a vehicle speed proportional to an electric motor rotation number exceeds a torque limit start vehicle speed, i.e., when the electric motor rotation number exceeds a torque limit start rotation number, a torque limit control for limiting an output torque of the electric motor is executed. The torque limit start vehicle speed is set to a vehicle speed corresponding to a lower limit frequency of a predetermined frequency range where there is a high likelihood of an electrical resonance occurring in the DC voltage converter when the conversion operation abnormality occurs.Type: GrantFiled: August 7, 2019Date of Patent: October 13, 2020Assignee: Honda Motor Co., Ltd.Inventors: Takeo Saito, Yasuhiko Kondo
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Publication number: 20200052577Abstract: A control device of a rotary electric machine capable of preventing occurrence of electrical resonance when a conversion operation abnormality of a DC voltage converter occurs is provided. In a case that the DC voltage converter stops a conversion operation and the conversion operation abnormality that input/output voltages become equal occurs, when a vehicle speed proportional to an electric motor rotation number exceeds a torque limit start vehicle speed, i.e., when the electric motor rotation number exceeds a torque limit start rotation number, a torque limit control for limiting an output torque of the electric motor is executed. The torque limit start vehicle speed is set to a vehicle speed corresponding to a lower limit frequency of a predetermined frequency range where there is a high likelihood of an electrical resonance occurring in the DC voltage converter when the conversion operation abnormality occurs.Type: ApplicationFiled: August 7, 2019Publication date: February 13, 2020Applicant: Honda Motor Co.,Ltd.Inventors: Takeo SAITO, Yasuhiko KONDO
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Patent number: 9824025Abstract: An information processing system comprising a storage device and an information processing device, wherein the information processing device includes a data holding unit which holds first data, a first detection unit which detects a first state of access, and a transmission unit which transmits the first state of access detected by the first detection unit to the storage device, and the storage device includes a storage unit which stores second data, a reception unit which receives the first state of access transmitted from the transmission unit, a second detection unit which detects a second state of access, which is a state of access to the second data, and a control unit which rearranges the second data in the storage unit on the basis of the states of access.Type: GrantFiled: February 13, 2015Date of Patent: November 21, 2017Assignee: FUJITSU LIMITEDInventors: Atsushi Takada, Kazuo Mineno, Isamu Ooishi, Tetsuya Sano, Satoshi Hongo, Satoshi Matsumoto, Yasuhiko Kondo, Kazuhisa Hiramatsu, Makoto Iwadare
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Patent number: 9717858Abstract: A gasket for prefilled syringe according to the present invention is a gasket for prefilled syringe that includes a fluid contacting portion, a sliding portion with a circumferential surface, a film layer made of a fluororesin coated on the fluid contacting portion and sliding portion and further, and a coating layer including trimethylsiloxysilicate laminated on the film layer covering the sliding portion.Type: GrantFiled: February 3, 2015Date of Patent: August 1, 2017Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Seiji Hara, Hiroaki Nakano, Hiroyuki Kaneko, Yasuhiko Kondo
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Publication number: 20170211288Abstract: Provided is a rubber bearing formed from a polychloroprene composition and having higher ozone resistance. The rubber bearing comprises a laminate prepared by alternately laminating a plurality of soft layers having rubber elasticity and a plurality of hard layers having rigidity, and a covering layer covering an outer peripheral part of the laminate. The soft layer comprises a rubber composition containing a polychloroprene, and the covering layer comprises a blend rubber composition containing 30 to 95 parts by mass of a polychloroprene and 70 to 5 parts by mass of an elastomer other than the polychloroprene.Type: ApplicationFiled: September 29, 2015Publication date: July 27, 2017Applicant: DENKA COMPANY LIMITEDInventors: Yasushi KAMIHIGASHI, Shinichirou KUMAGAI, Takumi NISHIMURA, Koji FUJITA, Takehiro TOMITA, Tatsuji MATSUMOTO, Yasuhiko KONDO, Yasuchika ITO, Takashi SUNADA, Nobuhiko FUJII, Hideki TOYA, Yasushi ABE
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Patent number: 9394391Abstract: Provided are: surface modification method for imparting slidability to surface of elastic body such as vulcanized rubber or thermoplastic elastomer without using expensive self-lubricating resin; surface-modified elastic body with polymer brush formed on its surface; and gasket for injector and injector formed of surface-modified elastic body. The surface modification method applies to surface of thermoplastic elastomer or vulcanized rubber.Type: GrantFiled: June 3, 2015Date of Patent: July 19, 2016Assignees: SUMITOMO RUBBER INDUSTRIES, LTD., KYUSHU UNIVERSITYInventors: Yasuhisa Minagawa, Yasuhiko Kondo, Tetsuo Mizoguchi, Atsushi Takahara, Motoyasu Kobayashi
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Publication number: 20150266984Abstract: Provided are: surface modification method for imparting slidability to surface of elastic body such as vulcanized rubber or thermoplastic elastomer without using expensive self-lubricating resin; surface-modified elastic body with polymer brush formed on its surface; and gasket for injector and injector formed of surface-modified elastic body. The surface modification method applies to surface of thermoplastic elastomer or vulcanized rubber.Type: ApplicationFiled: June 3, 2015Publication date: September 24, 2015Applicants: SUMITOMO RUBBER INDUSTRIES, LTD., KYUSHU UNIVERSITYInventors: Yasuhisa MINAGAWA, Yasuhiko KONDO, Tetsuo MIZOGUCHI, Atsushi TAKAHARA, Motoyasu KOBAYASHI
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Publication number: 20150253994Abstract: An information processing system comprising a storage device and an information processing device, wherein the information processing device includes a data holding unit which holds first data, a first detection unit which detects a first state of access, and a transmission unit which transmits the first state of access detected by the first detection unit to the storage device, and the storage device includes a storage unit which stores second data, a reception unit which receives the first state of access transmitted from the transmission unit, a second detection unit which detects a second state of access, which is a state of access to the second data, and a control unit which rearranges the second data in the storage unit on the basis of the states of access.Type: ApplicationFiled: February 13, 2015Publication date: September 10, 2015Inventors: ATSUSHI TAKADA, Kazuo Mineno, Isamu Ooishi, Tetsuya Sano, Satoshi Hongo, Satoshi MATSUMOTO, Yasuhiko KONDO, Kazuhisa Hiramatsu, Makoto Iwadare
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Publication number: 20150231337Abstract: A gasket for prefilled syringe according to the present invention is a gasket for prefilled syringe that includes a fluid contacting portion, a sliding portion with a circumferential surface, a film layer made of a fluororesin coated on the fluid contacting portion and sliding portion and further, and a coating layer including trimethylsiloxysilicate laminated on the film layer covering the sliding portion.Type: ApplicationFiled: February 3, 2015Publication date: August 20, 2015Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Seiji HARA, Hiroaki NAKANO, Hiroyuki KANEKO, Yasuhiko KONDO
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Patent number: 9074023Abstract: Provided are: surface modification method for imparting slidability to surface of elastic body such as vulcanized rubber or thermoplastic elastomer without using expensive self-lubricating resin; surface-modified elastic body with polymer brush formed on its surface; and gasket for injector and injector formed of surface-modified elastic body. The surface modification method applies to surface of thermoplastic elastomer or vulcanized rubber.Type: GrantFiled: December 26, 2011Date of Patent: July 7, 2015Assignees: SUMITOMO RUBBER INDUSTRIES, LTD., KYUSHU UNIVERSITYInventors: Yasuhisa Minagawa, Yasuhiko Kondo, Tetsuo Mizoguchi, Atsushi Takahara, Motoyasu Kobayashi
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Publication number: 20130274367Abstract: Provided are: surface modification method for imparting slidability to surface of elastic body such as vulcanized rubber or thermoplastic elastomer without using expensive self-lubricating resin; surface-modified elastic body with polymer brush formed on its surface; and gasket for injector and injector formed of surface-modified elastic body. The surface modification method applies to surface of thermoplastic elastomer or vulcanized rubber.Type: ApplicationFiled: December 26, 2011Publication date: October 17, 2013Applicants: KYUSHU UNIVERSITY, SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Yasuhisa Minagawa, Yasuhiko Kondo, Tetsuo Mizoguchi, Atsushi Takahara, Motoyasu Kobayashi
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Patent number: 8422230Abstract: A power converter including a switching element, a switching power module containing a driving circuit for driving the switching element, a smoothing capacitor module for smoothing an input to the switching power module, and a heat sink for cooling the switching power module, wherein the switching power module is mounted on the heat sink, and the smoothing capacitor module is provided on a side surface of the heat sink.Type: GrantFiled: January 21, 2011Date of Patent: April 16, 2013Assignee: Honda Motor Co., Ltd.Inventors: Tsukasa Aiba, Hitoshi Saika, Yasuhiko Kondo
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Publication number: 20110188279Abstract: A power converter including a switching element, a switching power module containing a driving circuit for driving the switching element, a smoothing capacitor module for smoothing an input to the switching power module, and a heat sink for cooling the switching power module, wherein the switching power module is mounted on the heat sink, and the smoothing capacitor module is provided on a side surface of the heat sink.Type: ApplicationFiled: January 21, 2011Publication date: August 4, 2011Applicant: HONDA MOTOR CO., LTD.Inventors: Tsukasa AIBA, Hitoshi Saika, Yasuhiko Kondo
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Patent number: 6995031Abstract: An electrode substrate of a PDP has an electrode pattern on a glass substrate and is made by baking and removing a resin binder in a conductive pattern composed of a conductive ink. The conductive pattern is formed by printing the conductive ink on the glass substrate by an intaglio offset printing method. The conductive ink is formed by dispersing or dissolving a metal powder and a resin binder into a solvent. A printing blanket used for printing the conductive pattern has a rubber layer on the surface of the printing blanket, and the rubber layer poses a volume increasing rate under 20% when the rubber is immersed in the solvent for 24 hours at 23° C. The printing blanket is heated such that a surface temperature TB of the printing blanket is about 40˜200° C., and then the printing blanket is cooled in a condition that the surface temperature TB (° C.) of the printing blanket with respect to a surface temperature TP (° C.) of the intaglio satisfies the equation |TP?TB|?5° C.Type: GrantFiled: August 31, 2004Date of Patent: February 7, 2006Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Yasuhiko Kondo, Makoto Sugiya