Patents by Inventor Akifumi Kamitanigawa

Akifumi Kamitanigawa 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).

  • Chain-type driving force transmitting apparatus
    Patent number: 8701837
    Abstract: A chain-type driving force transmitting apparatus includes a case having a lower space accumulating therein lubricating oil, an input shaft rotatably supported by the case, an output shaft arranged in parallel with the input shaft and rotatably supported by the case, and a chain wound around the input shaft and the output shaft and lifting up the lubricating oil accumulated in the lower space of the case. The chain-type driving force transmitting apparatus further includes a separator positioned adjacent to the chain and dividing the lower space of the case into a first chamber housing the chain and a second chamber. The separator has an inclined portion formed at an upper end of the separator and inclining towards the chain so as to receive the lubricating oil lifted up by the chain, wherein the lubricating oil received by the inclined portion flows into the second chamber.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: April 22, 2014
    Assignees: Aisin AI Co., Ltd, Toyota Jidosha Kabushiki Kaisha
    Inventors: Osamu Yamamoto, Toru Inoue, Shinji Kitaoka, Yukio Ueda, Akifumi Kamitanigawa, Satoshi Munakata
  • CHAIN-TYPE DRIVING FORCE TRANSMITTING APPARATUS
    Publication number: 20080026893
    Abstract: A chain-type driving force transmitting apparatus includes a case having a lower space accumulating therein lubricating oil, an input shaft rotatably supported by the case, an output shaft arranged in parallel with the input shaft and rotatably supported by the case, and a chain wound around the input shaft and the output shaft and lifting up the lubricating oil accumulated in the lower space of the case. The chain-type driving force transmitting apparatus further includes a separator positioned adjacent to the chain and dividing the lower space of the case into a first chamber housing the chain and a second chamber. The separator has an inclined portion formed at an upper end of the separator and inclining towards the chain so as to receive the lubricating oil lifted up by the chain, wherein the lubricating oil received by the inclined portion flows into the second chamber.
    Type: Application
    Filed: July 24, 2007
    Publication date: January 31, 2008
    Applicants: AISIN AI CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Osamu YAMAMOTO, Toru Inoue, Shinji Kitaoka, Yukio Ueda, Akifumi Kamitanigawa, Satoshi Munakata