Patents by Inventor Yoichiro Toyama

Yoichiro Toyama 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).

  • Coated sliding material
    Patent number: 5573390
    Abstract: In order to prevent the cracking of a coating of sliding material, in which an electroless Ni-B plating coating layer is formed on the surface of aluminum alloy, an electroless Ni-P plating coating layer is provided on the aluminum alloy.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: November 12, 1996
    Assignees: Surtec Kariya Co., Ltd., Taiho Kogyo Co., Ltd
    Inventors: Katsuhiro Takeuchi, Shogo Muramatsu, Yoichiro Toyama, Hirokazu Kondo