Patents by Inventor Keiichi Urano

Keiichi Urano 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).

  • Cylinder liner and method for manufacturing the same
    Patent number: 5148780
    Abstract: A cylinder liner comprises an alloy plating film of Ni-B or Ni-P or Ni-Co-P formed on at least a part contacting with cooling liquid in an outer peripheral surface and further a nitrided layer formed on an inner peripheral surface to improve an anti-cavitation characteristic, a sliding characteristic and an anti-corrosion characteristic and facilitate a manufacturing of the cylinder liner.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: September 22, 1992
    Assignee: Teikoku Piston Ring Co., Ltd.
    Inventors: Keiichi Urano, Kazunori Mizutani, Nobuyuki Yamashita