Patents by Inventor Daisuke Iimura

Daisuke Iimura 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).

  • Publication number: 20210123439
    Abstract: An electric oil pump apparatus includes a housing, an electric motor, an oil pump, a shaft, a first bearing, and a second bearing. The electric motor is housed in the housing. The oil pump is provided in the housing and positioned on a first side in an axial direction with respect to the electric motor so as to be adjacent to the electric motor, and includes a pump rotational element rotatable coaxially with a motor rotor. The motor rotor and the pump rotational element are fitted to the shaft to be rotatable together with the shaft. The first bearing is disposed on the first side with respect to the pump rotational element, and supports the shaft while allowing rotation relative to the housing. The second bearing is disposed on a second side with respect to the pump rotational element, and supports the shaft while allowing rotation relative to the housing.
    Type: Application
    Filed: October 16, 2020
    Publication date: April 29, 2021
    Applicant: JTEKT CORPORATION
    Inventor: Daisuke IIMURA
  • Patent number: 8708855
    Abstract: A vehicle drive system, including a motor generator; a gear group having a plurality of gears; and a motor cooling circuit for cooling the motor generator. The system further includes a lubricating circuit for lubricating the gear group; a cooler circuit in which an oil cooler is provided; and an oil pump that supplies oil to each circuit. The motor cooling circuit is arranged in series with and downstream of the cooler circuit, and the lubricating circuit is arranged parallel to the cooler circuit with respect to the oil pump.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: April 29, 2014
    Assignees: Aisin AW Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Junji Matsushita, Akira Isogai, Daisuke Iimura, Hironari Toyoda
  • Publication number: 20110232786
    Abstract: A vehicle drive system, including a motor generator; a gear group having a plurality of gears; and a motor cooling circuit for cooling the motor generator. The system further includes a lubricating circuit for lubricating the gear group; a cooler circuit in which an oil cooler is provided; and an oil pump that supplies oil to each circuit. The motor cooling circuit is arranged in series with and downstream of the cooler circuit, and the lubricating circuit is arranged parallel to the cooler circuit with respect to the oil pump.
    Type: Application
    Filed: March 10, 2011
    Publication date: September 29, 2011
    Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Junji MATSUSHITA, Akira ISOGAI, Daisuke IIMURA, Hironari TOYODA
  • Patent number: 7819707
    Abstract: An electrical connection structure that includes a first connection portion of the connection member that is fixedly fastened to the first terminal by a fastening bolt, and a second connection portion of the connection member that is connected to the second terminal through an insertable/removable plug, the first connection portion is fixedly fastened to the first terminal by inserting the fastening bolt through an insertion hole provided in one of the connection member and the first terminal, and fastening the fastening bolt in a fastening hole provided in the other of the connection member and the first terminal, the insertion hole is formed larger than a diameter of a shaft-like portion of the fastening bolt, and an inserting/removing direction of the plug and an axial direction of the fastening bolt are substantially parallel to each other.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: October 26, 2010
    Assignee: Aisin AW Co., Ltd.
    Inventors: Kazuo Aoki, Hiromichi Agata, Tatsuyuki Uechi, Tomoo Atarashi, Natsuki Sada, Masahiro Tanae, Manabu Miyazawa, Isao Fujishima, Daisuke Iimura
  • Patent number: 7786640
    Abstract: A drive device includes an input shaft connected to an engine; a first rotating electrical machine and a second rotating electrical machine; a differential gear unit including a first rotating element, a second rotating element, and a third rotating element; and a control device. The first rotating electrical machine and the differential gear unit are positioned coaxially with the input shaft. The first rotating electrical machine and the second rotating electrical machine are positioned on different axes from each other so as to axially overlap each other. A first component of the control device is positioned lower than the first rotating electrical machine and positioned so that at least a part of the first component overlaps the first rotating electrical machine when viewed in a vertical top plan view.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: August 31, 2010
    Assignee: Aisin AW Co., Ltd.
    Inventors: Natsuki Sada, Masahiro Tanae, Manabu Miyazawa, Tomohiko Ito, Takafumi Koshida, Tatsuyuki Uechi, Tomoo Atarashi, Daisuke Iimura
  • Publication number: 20100105253
    Abstract: An electrical connection structure that includes a first connection portion of the connection member that is fixedly fastened to the first terminal by a fastening bolt, and a second connection portion of the connection member that is connected to the second terminal through an insertable/removable plug, the first connection portion is fixedly fastened to the first terminal by inserting the fastening bolt through an insertion hole provided in one of the connection member and the first terminal, and fastening the fastening bolt in a fastening hole provided in the other of the connection member and the first terminal, the insertion hole is formed larger than a diameter of a shaft-like portion of the fastening bolt, and an inserting/removing direction of the plug and an axial direction of the fastening bolt are substantially parallel to each other.
    Type: Application
    Filed: September 29, 2009
    Publication date: April 29, 2010
    Applicant: AISIN AW CO., LTD.
    Inventors: Kazuo Aoki, Hiromichi Agata, Tatsuyuki Uechi, Tomoo Atarashi, Natsuki Sada, Masahiro Tanae, Manabu Miyazawa, Isao Fujishima, Daisuke Iimura
  • Publication number: 20090267352
    Abstract: A drive device includes an input shaft connected to an engine; a first rotating electrical machine and a second rotating electrical machine; a differential gear unit including a first rotating element, a second rotating element, and a third rotating element; and a control device. The first rotating electrical machine and the differential gear unit are positioned coaxially with the input shaft. The first rotating electrical machine and the second rotating electrical machine are positioned on different axes from each other so as to axially overlap each other. A first component of the control device is positioned lower than the first rotating electrical machine and positioned so that at least a part of the first component overlaps the first rotating electrical machine when viewed in a vertical top plan view.
    Type: Application
    Filed: April 1, 2009
    Publication date: October 29, 2009
    Applicant: AISIN AW CO., LTD.
    Inventors: Natsuki Sada, Masahiro Tanae, Manabu Miyazawa, Tomohiko Ito, Takafumi Koshida, Tatsuyuki Uechi, Tomoo Atarashi, Daisuke Iimura