Patents by Inventor Tomoaki Satomi

Tomoaki Satomi 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).

  • Bearing
    Patent number: 4872771
    Abstract: A bearing comprising inner and outer rings formed of a metal and a plurality of balls formed of calcined carbon which has self-lubricating properties and hardness higher than that of the inner and outer rings and has been baked beforehand at a temperature higher than a working temperature of the bearing so as to prevent the outgassing even when used in the circumstances of high temperature.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: October 10, 1989
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Hiroshi Ueno, Tomoaki Satomi, Teruo Yoshida
  • Method of making a bearing
    Patent number: 4821385
    Abstract: A bearing comprising inner and outer rings formed of a metal and a plurality of balls formed of calcined carbon which has self-lubricating properties and hardness higher than that of the inner and outer rings and has been baked beforehand at a temperature higher than a working temperature of the bearing so as to prevent the outgassing even when used in the circumstances of high temperature.
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: April 18, 1989
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Hiroshi Ueno, Tomoaki Satomi, Teruo Yoshida