Patents by Inventor Yasunobu Toyoda

Yasunobu Toyoda 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: 10196961
    Abstract: A device seating a valve body with the aid of an urging force of a spring by stopping the operation of a pump, changes over an energization state of a coil of at least one of the liquid shutoff valves which is changed over to the closed-valve state where the coil is energized, and then resumes the operation of the pump. Upon detecting the start of operation of the pump, a valve control unit causes a pump control unit to perform opening-closing force-feed control, where an amount of the cooling liquid force-fed by the pump is set to an amount within such a range that the valve body of the liquid shutoff valves whose coil is energized is not displaced in a valve-opening direction while the valve body of the liquid shutoff valves whose coil is not energized is displaced in the valve-opening direction.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: February 5, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Noboru Takagi, Yasunobu Toyoda, Hirotaka Watanabe, Masazumi Yoshida, Ryusuke Sasaki
  • Publication number: 20180252147
    Abstract: A cooling control device includes a first heat exchanger to which a coolant of an internal combustion engine is supplied, a radiator to which the coolant of is supplied, a coolant pump supplying the coolant, a flow amount control valve controlling a flow amount of the coolant, and a control unit controlling the flow amount control valve. The control unit acquires a first amount of heat which is accumulated in the coolant, a second amount of heat which is accumulated in the coolant by a heat exchange with the first heat exchanger, and a third amount of heat for changing a temperature level of the coolant to a targeted temperature level. A targeted dissipation amount is set from the first, second and third amounts of heat, and an opening of the flow amount control valve is set by a feedforward control.
    Type: Application
    Filed: September 12, 2016
    Publication date: September 6, 2018
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Hirotaka Watanabe, Yasunobu Toyoda, Masahiro Yoshida, Kazuyoshi Shimatani
  • Publication number: 20170037771
    Abstract: A device seating a valve body with the aid of an urging force of a spring by stopping the operation of a pump, changes over an energization state of a coil of at least one of the liquid shutoff valves which is changed over to the closed-valve state where the coil is energized, and then resumes the operation of the pump. Upon detecting the start of operation of the pump, a valve control unit causes a pump control unit to perform opening-closing force-feed control, where an amount of the cooling liquid force-fed by the pump is set to an amount within such a range that the valve body of the liquid shutoff valves whose coil is energized is not displaced in a valve-opening direction while the valve body of the liquid shutoff valves whose coil is not energized is displaced in the valve-opening direction.
    Type: Application
    Filed: July 19, 2016
    Publication date: February 9, 2017
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Noboru TAKAGI, Yasunobu TOYODA, Hirotaka WATANABE, Masazumi YOSHIDA, Ryusuke SASAKI
  • Patent number: 7061132
    Abstract: A reciprocating engine type electric generator includes means for recognizing a phase difference between a phase of an alternate voltage wave generated at a stator coil following rotation of a rotor and a phase of a reference alternate voltage, and means for controlling a speed of a rotational magnetic field generated at the stator coil by controlling the alternate voltage applied to the stator coil based upon the phase difference recognized by the means for recognizing the phase difference.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: June 13, 2006
    Assignees: Aisin Seiki Kabushiki Kaisha, Nihon Inverter Corporation
    Inventors: Yasunobu Toyoda, Yoshinobu Nakano, Yasuo Yokoi
  • Publication number: 20050023835
    Abstract: A reciprocating engine type electric generator includes means for recognizing a phase difference between a phase of an alternate voltage wave generated at a stator coil following rotation of a rotor and a phase of a reference alternate voltage, and means for controlling a speed of a rotational magnetic field generated at the stator coil by controlling the alternate voltage applied to the stator coil based upon the phase difference recognized by the means for recognizing the phase difference.
    Type: Application
    Filed: July 30, 2004
    Publication date: February 3, 2005
    Applicants: AISIN SEIKI KABUSHIKI KAISHA, NIHON INVERTER CORPORATION
    Inventors: Yasunobu Toyoda, Yoshinobu Nakano, Yasuo Yokoi