Patents by Inventor Toshiaki Akashi

Toshiaki Akashi 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).

  • Magnetic noncontacting tension device for winding yarn
    Patent number: 6029923
    Abstract: A tension device for winding yarn includes a bracket with an inclined face and a braking member accommodated in the bracket. A rotary shaft protrudes from the center of the bracket. A tubular member has a through-hole for the rotary shaft. A forward guide member includes two hub members mounted on the axial end of the rotary shaft with a yarn winding portion joining the hub members.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: February 29, 2000
    Assignee: Ogura Clutch Co., Ltd.
    Inventors: Takashi Ishimaru, Yasuo Yokoyama, Toshiaki Akashi
  • Electromagnetic spring clutch with non-magnetic rotating members
    Patent number: 5952750
    Abstract: A compact, inexpensive electromagnetic spring clutch includes forming supporting bearing surfaces made of synthetic resin rotary members, in a magnetic excitor. Cylindrical magnetic pole parts are formed in the first core and second core and the inner surfaces of these magnetic pole parts are made into bearing surfaces.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: September 14, 1999
    Assignee: Ogura Clutch Co Ltd.
    Inventors: Yasuo Yokoyama, Toshiaki Akashi