Patents by Inventor Shuhei Aoki

Shuhei Aoki 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).

  • Clutch-release bearing unit
    Patent number: 6343683
    Abstract: A sleeve 2 is made from a composition of polyamnide resin and denatured, high-density polyethylene, wherein the polyethylene is denatured with unsaturated dicenboxylic acid or unsaturated dicarboxylic acid anhydride or both to have a molecular weight of 50,000 to 400,000 in average.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: February 5, 2002
    Assignee: NSK Ltd.
    Inventors: Shuhei Aoki, Masao Takeda
  • Damper apparatus for an autotensioner
    Patent number: 5569105
    Abstract: An autotensioner for use in applying a tension to a moving belt, having a damper apparatus which can follow a sudden change in tension of the belt by improving the piston and plunger structure of the damper apparatus so that the viscous fluid has a liquid surface kept high even when the plunger rises its uppermost position to prevent air from entering underneath the piston.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: October 29, 1996
    Assignee: NSK, Ltd.
    Inventors: Kouichi Sakai, Shuhei Aoki, Shigenori Murata, Hayato Oumi, Hiroshi Suzuki