Patents by Inventor Tsugio Hatanaka

Tsugio Hatanaka 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).

  • Outer wall structure of a torque converter and others
    Patent number: 4867641
    Abstract: An outer wall structure of a torque converter or the like including an input housing (1) having an end portion (2), and a pump impeller shell 4 having an end portion (5) fixed to the end portion of the input housing (1). one (5) of the end portions (2, 5) is provided at the outer peripheral surface with a surface portion (15) of a relatively small diameter and a surface portion (16) of a relatively large diameter. A space (27) for accumulating spatter therein is formed between an inner peripheral surface (20) of the other end portion (2) and the surface portion (15) of the relative small diameter.
    Type: Grant
    Filed: March 15, 1988
    Date of Patent: September 19, 1989
    Assignee: Kabushiki Kaisha Daikin Seisakusho
    Inventors: Yoshihiro Okuno, Jun Sakanoue, Yoshitsugu Sakamoto, Tsugio Hatanaka, Takashi Okuno