Patents by Inventor Isao Fujishima

Isao Fujishima 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: 11014455
    Abstract: A vehicle drive device that includes a rotating electrical machine that serves as a drive power source for a first wheel and a second wheel; a differential gear device that distributes drive power from the rotating electrical machine to the first wheel and the second wheel; a reduction device that includes a planetary gear mechanism with a sun gear, a carrier, and a ring gear; and a case that accommodates the rotating electrical machine, the differential gear device, and the reduction device.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: May 25, 2021
    Assignee: AISIN AW CO., LTD.
    Inventors: Daiki Suyama, Hiroaki Sanji, Mitsuhiro Ichioka, Yuki Kawaguchi, Koji Ota, Kazuyuki Sasaki, Isao Fujishima
  • Publication number: 20210091629
    Abstract: When a case of a rotary electric machine has an inner case member that houses a stator and an outer case member that houses the inner case member, a vibration that is transmitted from stator to the outer case member via inner case member is suppressed. The inner case portion is provided with a first tubular portion and a first protruding portion that protrudes toward a radial inner side from the first tubular portion on an axial first side. The outer case portion is provided with a second tubular portion and a second protruding portion that protrudes toward the radial inner side from the second tubular portion on the axial first side with respect to the first protruding portion. A coolant flow path is formed between the first tubular portion and the second tubular portion, and the first protruding portion and the second protruding portion are fixed to each other.
    Type: Application
    Filed: June 5, 2019
    Publication date: March 25, 2021
    Applicant: AISIN AW CO., LTD.
    Inventors: Takuro IWASE, Masaomi ASANO, Daisuke YAMAOKA, Takeshi TORII, Hiroaki SANJI, Jun SUZUKI, Isao FUJISHIMA, Keisuke NAKASHIMA
  • Publication number: 20200215920
    Abstract: A vehicle drive device that includes a rotating electrical machine that serves as a drive power source for a first wheel and a second wheel; a differential gear device that distributes drive power from the rotating electrical machine to the first wheel and the second wheel; a reduction device that includes a planetary gear mechanism with a sun gear, a carrier, and a ring gear; and a case that accommodates the rotating electrical machine, the differential gear device, and the reduction device.
    Type: Application
    Filed: August 24, 2018
    Publication date: July 9, 2020
    Applicant: AISIN AW CO., LTD.
    Inventors: Daiki SUYAMA, Hiroaki SANJI, Mitsuhiro ICHIOKA, Yuki KAWAGUCHI, Koji OTA, Kazuyuki SASAKI, Isao FUJISHIMA
  • Patent number: 8653704
    Abstract: A vehicle drive system configured with a dynamo within a case. The case is disposed on at least one axial side of the dynamo, and includes a wall portion overlapping the dynamo, which has a section that overlaps with the dynamo as viewed from the axial direction. The wall portion overlapping the dynamo includes a supply flow passage through which lubricating-cooling fluid flows, and which is formed with a first supply portion that supplies lubricating-cooling fluid to a rotor support bearing for the dynamo electric. The first supply portion includes a throttle portion whose flow passage cross-sectional area is small when compared to an upstream-side flow passage cross-sectional area in the flow direction of lubricating-cooling fluid. The supply flow passage includes a second supply portion that is a portion supplying lubricating-cooling fluid to the dynamo and higher than the first supply portion.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: February 18, 2014
    Assignee: Aisin AW Co., Ltd.
    Inventors: Tomoo Atarashi, Hirotaka Yata, Isao Fujishima
  • Publication number: 20110298314
    Abstract: A vehicle drive system configured with a dynamo within a case. The case is disposed on at least one axial side of the dynamo, and includes a wall portion overlapping the dynamo, which has a section that overlaps with the dynamo as viewed from the axial direction. The wall portion overlapping the dynamo includes a supply flow passage through which lubricating-cooling fluid flows, and which is formed with a first supply portion that supplies lubricating-cooling fluid to a rotor support bearing for the dynamo electric. The first supply portion includes a throttle portion whose flow passage cross-sectional area is small when compared to an upstream-side flow passage cross-sectional area in the flow direction of lubricating-cooling fluid. The supply flow passage includes a second supply portion that is a portion supplying lubricating-cooling fluid to the dynamo and higher than the first supply portion.
    Type: Application
    Filed: May 13, 2011
    Publication date: December 8, 2011
    Applicant: AISIN AW CO., LTD.
    Inventors: Tomoo ATARASHI, Hirotaka YATA, Isao FUJISHIMA
  • 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
  • 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