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).

  • Patent number: 11606044
    Abstract: 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: Grant
    Filed: September 30, 2020
    Date of Patent: March 14, 2023
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Nobukatsu Yamaguchi, Yuta Nakamura, Yasuhiko Kondo
  • Patent number: 11404989
    Abstract: 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: Grant
    Filed: October 23, 2020
    Date of Patent: August 2, 2022
    Assignees: HONDA MOTOR CO., LTD., HITACHI ASTEMO, LTD.
    Inventors: Yasuhiko Kondo, Yuta Nakamura, Nobukatsu Yamaguchi
  • Patent number: 11171505
    Abstract: 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: Grant
    Filed: September 3, 2020
    Date of Patent: November 9, 2021
    Assignees: KEIHIN CORPORATION, HONDA MOTOR CO., LTD.
    Inventors: Kazuya Sugano, Kazutaka Senoo, Koji Suzuki, Yasuhiko Kondo, Yasushi Hori
  • Publication number: 20210288604
    Abstract: 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: Application
    Filed: October 23, 2020
    Publication date: September 16, 2021
    Inventors: Yasuhiko KONDO, Yuta NAKAMURA, Nobukatsu YAMAGUCHI
  • Publication number: 20210104955
    Abstract: 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: Application
    Filed: September 30, 2020
    Publication date: April 8, 2021
    Inventors: Nobukatsu YAMAGUCHI, Yuta NAKAMURA, Yasuhiko KONDO
  • Publication number: 20210075250
    Abstract: 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: Application
    Filed: September 3, 2020
    Publication date: March 11, 2021
    Inventors: Kazuya SUGANO, Kazutaka SENOO, Koji SUZUKI, Yasuhiko KONDO, Yasushi HORI
  • Patent number: 10804792
    Abstract: 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: Grant
    Filed: August 7, 2019
    Date of Patent: October 13, 2020
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takeo Saito, Yasuhiko Kondo
  • Publication number: 20200052577
    Abstract: 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: Application
    Filed: August 7, 2019
    Publication date: February 13, 2020
    Applicant: Honda Motor Co.,Ltd.
    Inventors: Takeo SAITO, Yasuhiko KONDO
  • Patent number: 9824025
    Abstract: 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: Grant
    Filed: February 13, 2015
    Date of Patent: November 21, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Atsushi Takada, Kazuo Mineno, Isamu Ooishi, Tetsuya Sano, Satoshi Hongo, Satoshi Matsumoto, Yasuhiko Kondo, Kazuhisa Hiramatsu, Makoto Iwadare
  • Patent number: 9717858
    Abstract: 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: Grant
    Filed: February 3, 2015
    Date of Patent: August 1, 2017
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Seiji Hara, Hiroaki Nakano, Hiroyuki Kaneko, Yasuhiko Kondo
  • Publication number: 20170211288
    Abstract: 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: Application
    Filed: September 29, 2015
    Publication date: July 27, 2017
    Applicant: DENKA COMPANY LIMITED
    Inventors: Yasushi KAMIHIGASHI, Shinichirou KUMAGAI, Takumi NISHIMURA, Koji FUJITA, Takehiro TOMITA, Tatsuji MATSUMOTO, Yasuhiko KONDO, Yasuchika ITO, Takashi SUNADA, Nobuhiko FUJII, Hideki TOYA, Yasushi ABE
  • Patent number: 9394391
    Abstract: 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: Grant
    Filed: June 3, 2015
    Date of Patent: July 19, 2016
    Assignees: SUMITOMO RUBBER INDUSTRIES, LTD., KYUSHU UNIVERSITY
    Inventors: Yasuhisa Minagawa, Yasuhiko Kondo, Tetsuo Mizoguchi, Atsushi Takahara, Motoyasu Kobayashi
  • Publication number: 20150266984
    Abstract: 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: Application
    Filed: June 3, 2015
    Publication date: September 24, 2015
    Applicants: SUMITOMO RUBBER INDUSTRIES, LTD., KYUSHU UNIVERSITY
    Inventors: Yasuhisa MINAGAWA, Yasuhiko KONDO, Tetsuo MIZOGUCHI, Atsushi TAKAHARA, Motoyasu KOBAYASHI
  • Publication number: 20150253994
    Abstract: 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: Application
    Filed: February 13, 2015
    Publication date: September 10, 2015
    Inventors: ATSUSHI TAKADA, Kazuo Mineno, Isamu Ooishi, Tetsuya Sano, Satoshi Hongo, Satoshi MATSUMOTO, Yasuhiko KONDO, Kazuhisa Hiramatsu, Makoto Iwadare
  • Publication number: 20150231337
    Abstract: 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: Application
    Filed: February 3, 2015
    Publication date: August 20, 2015
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Seiji HARA, Hiroaki NAKANO, Hiroyuki KANEKO, Yasuhiko KONDO
  • Patent number: 9074023
    Abstract: 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: Grant
    Filed: December 26, 2011
    Date of Patent: July 7, 2015
    Assignees: SUMITOMO RUBBER INDUSTRIES, LTD., KYUSHU UNIVERSITY
    Inventors: Yasuhisa Minagawa, Yasuhiko Kondo, Tetsuo Mizoguchi, Atsushi Takahara, Motoyasu Kobayashi
  • Publication number: 20130274367
    Abstract: 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: Application
    Filed: December 26, 2011
    Publication date: October 17, 2013
    Applicants: KYUSHU UNIVERSITY, SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Yasuhisa Minagawa, Yasuhiko Kondo, Tetsuo Mizoguchi, Atsushi Takahara, Motoyasu Kobayashi
  • Patent number: 8422230
    Abstract: 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: Grant
    Filed: January 21, 2011
    Date of Patent: April 16, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tsukasa Aiba, Hitoshi Saika, Yasuhiko Kondo
  • Publication number: 20110188279
    Abstract: 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: Application
    Filed: January 21, 2011
    Publication date: August 4, 2011
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Tsukasa AIBA, Hitoshi Saika, Yasuhiko Kondo
  • Patent number: 6995031
    Abstract: 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: Grant
    Filed: August 31, 2004
    Date of Patent: February 7, 2006
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Yasuhiko Kondo, Makoto Sugiya