Patents by Inventor Koshi ASAO

Koshi ASAO 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).

  • Lock-up clutch for torque converter
    Patent number: 11519485
    Abstract: The present invention relates to a lock-up clutch of a torque converter. A cover (10) is separated to a pilot (48) and includes an opening (10-1) for installing the pilot (48). Before assembling a clutch driving portion such as a piston, a separator, drive plates, a seal ring, and driven plates, to the pilot (48), rivets (53) are press-fitted into the pilot (48), the cover (10) is abutted to respective head portions of the rivets (53), and the pilot (48) is installed in the cover (10) and is fixed to the cover (10) by welding. Thereafter, the piston, the drive plates and the driven plates are disposed between the separator and the cover (10), the seal ring is contact with the separator, the separator is press-fitted into projection ends of the rivets (53), and then projection portions (53-2) of the rivets (53) are crimped.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: December 6, 2022
    Assignees: UNIPRES CORPORATION, JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Nobuhiko Furuya, Ryuta Mori, Mitsuyoshi Tako, Daisuke Nakahara, Koshi Asao, Daisuke Usui, Takumi Watanabe, Yasuhiro Ishikawa
  • LOCK-UP CLUTCH FOR TORQUE CONVERTER
    Publication number: 20210215239
    Abstract: The present invention relates to a lock-up clutch of a torque converter. A cover (10) is separated to a pilot (48) and includes an opening (10-1) for installing the pilot (48). Before assembling a clutch driving portion such as a piston, a separator, drive plates, a seal ring, and driven plates, to the pilot (48), rivets (53) are press-fitted into the pilot (48), the cover (10) is abutted to respective head portions of the rivets (53), and the pilot (48) is installed in the cover (10) and is fixed to the cover (10) by welding. Thereafter, the piston, the drive plates and the driven plates are disposed between the separator and the cover (10), the seal ring is contact with the separator, the separator is press-fitted into projection ends of the rivets (53), and then projection portions (53-2) of the rivets (53) are crimped.
    Type: Application
    Filed: August 23, 2019
    Publication date: July 15, 2021
    Applicants: UNIPRES CORPORATION, JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Nobuhiko FURUYA, Ryuta MORI, Mitsuyoshi TAKO, Daisuke NAKAHARA, Koshi ASAO, Daisuke USUI, Takumi WATANABE, Yasuhiro ISHIKAWA