Patents by Inventor Haruyoshi Matsuura

Haruyoshi Matsuura 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).

  • Method of making a frictionally sliding component
    Patent number: 5185923
    Abstract: In a frictionally sliding structure, a metallic intermediate member is provided, which has a head and a stud. The stud is interfit into a recess provided with a tappet, while the head has a ceramic chip on which a cam is adapted to frictionally slide.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: February 16, 1993
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Masato Taniguchi, Haruyoshi Matsuura