Patents by Inventor Fusao Yomoda

Fusao Yomoda 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).

  • Semiconductive silicone rubber roller
    Patent number: 6390961
    Abstract: Disclosed is a semiconductive rubber roller used as a developing roller in a photocopying printer machine exhibiting excellent performance and outstanding durability. The rubber roller is an integral body comprising (a) a shaft of a metallic material, (b) a base rubber layer on and around the shaft formed from a semiconductive silicone rubber having a specified volume resistivity and (c) a cladding layer having a specified thickness on and around the base rubber layer formed from a synthetic resin composition compounded with a specified amount of particles of a dielectric material, such as silica, having a dielectric constant of 2.0 to 8.0 and a specified average particle diameter.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: May 21, 2002
    Assignee: Shin-Etsu Polymer Co., Ltd.
    Inventors: Kazuya Nakada, Tsuneo Ohki, Fusao Yomoda