Patents by Inventor Tomotaka Kurozu

Tomotaka Kurozu 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: 11289778
    Abstract: A power storage module includes a power storage component unit and a connector module. The power storage component unit includes power storage components including electric terminals positive terminals, negative terminals) on one side. The connector module is attached to the power storage component unit to electrically connect the power storage components. The connector module includes bus bars and a holder. The bus bars connect the electric terminals of the power storage components that are adjacent to each other. The holder holds the bus bars. The holder includes a bus bar holding surface that includes bus bar placing sections on which the bus bars are placed. The holder includes restricting receptacles and restricting tabs fitted to the bas bars placed on the bus bar placing sections to restrict removal of the bus bars from the holder and displacement of the bus bars from the bus bar placing sections.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: March 29, 2022
    Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Akihiro Nagafuchi, Tomotaka Kurozu, Rintaro Negishi, Yusuke Kunii
  • Patent number: 10943752
    Abstract: A relay cooling device includes a container, a liquid coolant that is stored in the container, and a relay that is immersed in the liquid coolant.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: March 9, 2021
    Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hiroomi Hiramitsu, Tomotaka Kurozu
  • Publication number: 20210043908
    Abstract: A power storage module includes a power storage component unit and a connector module. The power storage component unit includes power storage components including electric terminals positive terminals, negative terminals) on one side. The connector module is attached to the power storage component unit to electrically connect the power storage components. The connector module includes bus bars and a holder. The bus bars connect the electric terminals of the power storage components that are adjacent to each other. The holder holds the bus bars. The holder includes a bus bar holding surface that includes bus bar placing sections on which the bus bars are placed. The holder includes restricting receptacles and restricting tabs fitted to the bas bars placed on the bus bar placing sections to restrict removal of the bus bars from the holder and displacement of the bus bars from the bus bar placing sections.
    Type: Application
    Filed: March 1, 2019
    Publication date: February 11, 2021
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Akihiro NAGAFUCHI, Tomotaka KUROZU, Rintaro NEGISHI, Yusuke KUNII
  • Patent number: 10637224
    Abstract: An electrical junction box configured to be disposed between a power supply and a load includes a cooling case that has an opening, a circuit assembly that is disposed closing the opening of the cooling case, and a liquid coolant that is stored in the cooling case. The circuit assembly has a case-facing surface that faces the cooling case, and includes a plurality of busbars that are disposed on the case-facing surface and constitute a conductive path between the power supply and the load. The busbars are immersed in the liquid coolant R.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: April 28, 2020
    Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hiroomi Hiramitsu, Tomotaka Kurozu, Masato Tsutsuki
  • Publication number: 20200051765
    Abstract: A relay is provided with a housing, a coil arranged inside the housing, a fixed terminal, and a movable member. The housing is filled with an insulating liquid refrigerant, and the coil and the movable member are immersed in the liquid refrigerant, and at least a fixed contact of the fixed terminal is immersed in the liquid refrigerant. Heat generated in the coil, the movable member, and the fixed terminal is cooled by the liquid refrigerant, and thus the efficiency of cooling the relay is improved.
    Type: Application
    Filed: January 31, 2017
    Publication date: February 13, 2020
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hiroomi HIRAMITSU, Tomotaka KUROZU, Hiroki HIRAI, Makoto HIGASHIKOZONO, Hideyuki KUBOKI, Masato TSUTSUKI
  • Publication number: 20190214805
    Abstract: An electrical junction box configured to be disposed between a power supply and a load includes a cooling case that has an opening, a circuit assembly that is disposed closing the opening of the cooling case, and a liquid coolant that is stored in the cooling case. The circuit assembly has a case-facing surface that faces the cooling case, and includes a plurality of busbars that are disposed on the case-facing surface and constitute a conductive path between the power supply and the load. The busbars are immersed in the liquid coolant R.
    Type: Application
    Filed: August 9, 2017
    Publication date: July 11, 2019
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hiroomi HIRAMITSU, Tomotaka KUROZU, Masato TSUTSUKI
  • Publication number: 20180330906
    Abstract: A relay cooling device includes a container, a liquid coolant that is stored in the container, and a relay that is immersed in the liquid coolant.
    Type: Application
    Filed: November 10, 2016
    Publication date: November 15, 2018
    Inventors: Hiroomi HIRAMITSU, Tomotaka KUROZU
  • Patent number: 9490094
    Abstract: An overcurrent protection apparatus that is connectable to a battery control unit to protect the battery control unit from an overcurrent. The overcurrent protection apparatus includes a fuse member that is provided with a fuse and a fusible wire that is connected in series to the fuse. The fusible wire is made of a conductor that has a melting point lower than that of copper, and has a fusing current value that is higher than that of the fuse. The fuse member is connected in series to the battery control unit.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: November 8, 2016
    Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Ryoya Okamoto, Kazuyuki Nakagaki, Tomotaka Kurozu, Takehiro Hosokawa, Yasuyuki Otsuka, Akiko Inoue, Ryoma Uegaki
  • Publication number: 20150022931
    Abstract: An overcurrent protection apparatus that is connectable to a battery control unit to protect the battery control unit from an overcurrent. The overcurrent protection apparatus includes a fuse member that is provided with a fuse and a fusible wire that is connected in series to the fuse. The fusible wire is made of a conductor that has a melting point lower than that of copper, and has a fusing current value that is higher than that of the fuse. The fuse member is connected in series to the battery control unit.
    Type: Application
    Filed: December 26, 2012
    Publication date: January 22, 2015
    Inventors: Ryoya Okamoto, Kazuyuki Nakagaki, Tomotaka Kurozu, Takehiro Hosokawa, Yasuyuki Otsuka, Akiko Inoue, Ryoma Uegaki
  • Patent number: 7786886
    Abstract: A display system for a steering wheel includes: a vehicle information acquiring unit for acquiring vehicle information; an irradiation unit mounted to the steering column such that the irradiation unit is stationary during rotation of the steering wheel; a display device mounted to the steering wheel; and a display controller for controlling display content based on the vehicle information. A method includes: acquiring vehicle information; detecting a steering direction and/or a steering amount of the steering wheel; calculating a display range and/or a display speed to be displayed based on the steering information; controlling display content, based on information acquired by the vehicle information acquiring unit and a result calculated by the display portion calculating unit; and displaying the steering direction, the steering amount, and/or the steering time at a position on the steering wheel that is stationary during rotation of the steering wheel.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: August 31, 2010
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Hyundai-Kia Motor Japan R & D Center Inc.
    Inventors: Shuji Maruyama, Tomotaka Kurozu
  • Publication number: 20080143505
    Abstract: A display system for a steering wheel includes: a vehicle information acquiring unit for acquiring vehicle information; an irradiation unit mounted to the steering column such that the irradiation unit is stationary during rotation of the steering wheel; a display device mounted to the steering wheel; and a display controller for controlling display content based on the vehicle information. A method includes: acquiring vehicle information; detecting a steering direction and/or a steering amount of the steering wheel; calculating a display range and/or a display speed to be displayed based on the steering information; controlling display content, based on information acquired by the vehicle information acquiring unit and a result calculated by the display portion calculating unit; and displaying the steering direction, the steering amount, and/or the steering time at a position on the steering wheel that is stationary during rotation of the steering wheel.
    Type: Application
    Filed: December 3, 2007
    Publication date: June 19, 2008
    Inventors: Shuji Maruyama, Tomotaka Kurozu
  • Patent number: 6037745
    Abstract: A charging apparatus for charging batteries of automobiles includes an inverter for converting the direct current from a direct current power source into an alternating current and a transformer having a first coil and a second coil. When an alternating current from the inverter is applied to the first coil, the second coil produces an alternating voltage. A capacitor is connected between the terminals of the second coil to increase the alternating voltage produced in the second coil. A rectifier circuit rectifies the alternating voltage increased in the booster circuit into a direct current voltage and the direct current voltage is applied to the battery. Two transistors, which function as a short circuit, are provided in the rectifier circuit. When the direct current voltage from the rectifier circuit is equal to or higher than a predetermined permissible value, a drive signal from a drive circuit turns on the two transistors.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: March 14, 2000
    Assignees: Kabushiki Kaisha Toyoda Jidoshokki, Nissan Motor Co., Ltd.
    Inventors: Yasuhiro Koike, Seiki Sakata, Yoshiaki Ishihara, Kazuki Najima, Tomotaka Kurozu, Masayuki Fukuda, Hajime Satoh
  • Patent number: 5293160
    Abstract: A keyless lock system for a vehicle includes a card for transmitting a radio signal, at least one onboard antenna for receiving the radio signal, and a control unit for allowing and preventing keyless lock and unlock operations in dependence on the existence or nonexistence of the card in a predetermined area near the antenna. The control unit monitors the position of of at least one monitored door, and produces a card warning signal each time the monitored door is closed if the card is absent in the vehicle.
    Type: Grant
    Filed: May 29, 1991
    Date of Patent: March 8, 1994
    Assignee: Nissan Motor Company, Ltd.
    Inventors: Tomotaka Kurozu, Mikio Takeuchi
  • Patent number: 5233872
    Abstract: An acceleration sensor includes a tubular bobbin only one end of which is fixed to a body whereas the other end is movable relative to the body axially of the bobbin. Supported on the body are magnets for attracting a magnetic member, mounted within the bobbin, to a reference position. A detection member is mounted around the bobbin so as to detect a displacement of the magnetic member from the reference position. A gel can be filled in a receiving space of the body in which the bobbin is received. The body can be of a tubular shape, with covers fixedly secured respectively to opposite ends of the body, in which case opposite ends of the bobbin are disposed in opposed, spaced relation to inner sides of the covers, respectively. The body can be received in a housing, and a circuit board can be received in an auxiliary receiving space in the housing.
    Type: Grant
    Filed: August 16, 1990
    Date of Patent: August 10, 1993
    Assignees: Zexel Corporation, Nissan Motor Company, Ltd.
    Inventors: Takeo Kushida, Tomotaka Kurozu, Issei Ohmura, Mikio Takeuchi
  • Patent number: 5196663
    Abstract: In a transmission control apparatus for an automotive vehicle having a shift lever, a controller and a transmission actuator, a shift operation detector is additionally connected between the controller and the transmission actuator to apply an actuator control signal to the transmission actuator only when the shift lever is being operated, thus preventing erroneous operation of the transmission due to external noise. The shift operation detector comprises a touch switch provided on the shift lever knob so as to be closed only when the driver grips the knob and a hold relay energized by the actuator control signal applied from the controller via the closed touch switch.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: March 23, 1993
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tomotaka Kurozu, Mikio Takeuchi
  • Patent number: 5157389
    Abstract: A keyless lock system for a vehicle includes a card for transmitting a radio signal, at least one onboard antenna for receiving the radio signal, and a control unit for allowing and preventing keyless lock and unlock operations in dependence on the existence or nonexistence of the card in a predetermined area near the antenna. The control unit monitors the position of at least one monitored door, and produces a card warning signal each time the monitored door is closed if the card is absent in the vehicle.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: October 20, 1992
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tomotaka Kurozu, Mikio Takeuchi
  • Patent number: 5117664
    Abstract: Sensors such as switches are arranged to detect the insertion of a key into a key cylinder, the rotation of the key to one or more operative positions, the position of a transmission shift level, the depressions of a brake pedal and the like, and to produce signals which are processed by logic circuits in a manner to determine the energization mode and timing of the solenoid or the like motor arrangement in a manner which locks or releases a safety button which must be pressed before the steering column of a vehicle can be locked. The mechanism which performs the locking operation is mounted on the exterior of the housing in which the key cylinder is disposed, thus facilitating assembly.
    Type: Grant
    Filed: March 6, 1989
    Date of Patent: June 2, 1992
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tomotaka Kurozu, Yoshimitsu Takeda, Mikio Takeuchi, Hiroshi Kato
  • Patent number: 5036687
    Abstract: A steering lock system for an automotive vehicle includes a steering lock actuator, a control rod, a solenoid with a corresponding plunger and a portable transmitter which produces a radio signal indicative of a transmitter self-identifying code. When the transmitter self-identifying code matches a preset reference code, the solenoid is energized to move the plunger so as to release an engagement between the plunger and the control rod. Accordingly, the control rod is free to move to a position where no engagement between the control rod and the steering lock actuator is established, to allow the steering lock actuator to shift to a steering wheel unlocking position from a steering wheel locking position.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: August 6, 1991
    Assignee: Nissan Motor Company, Limited
    Inventors: Mikio Takeuchi, Tomotaka Kurozu
  • Patent number: 4934769
    Abstract: A power supply circuit for automotive headlamps includes an electrical wire establishing communication between one of the headlamps and a power source at a first position of a combination switch, and a control unit selectively establishing communication between the other headlamp and the power source at the first position and between both of the headlamps and the power source in series at a second position of the combination switch.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: June 19, 1990
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tomotaka Kurozu, Sachiro Kataoka, Kazuhiro Sugai
  • Patent number: 4909199
    Abstract: A system for controlling an ignition device for a a motor vehicle comprises a key operated movable member, a blocking mechanism for automatically blocking the key operated movable member against return movement once the key operated movable member has moved beyond a predetermined position, and means responsive to a predetermined condition of the vehicle for restraining a manual release member of the blocking mechanism from actuation for releasing the blocking mechanism.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: March 20, 1990
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tomotaka Kurozu, Yoshimitsu Takeda, Hiroyuki Asano, Terukiyo Murakami, Yuichi Abe