Patents by Inventor Saburo Hanafusa

Saburo Hanafusa 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).

  • Patent number: 4505987
    Abstract: A sliding member highly improved with lubricating performance, wear resistant property and strength has a thin steel sheet or plate and sintered metal layer deposited on the steel sheet, wherein the sintered metal layer, comprises copper as a main component incorporated with a certain amount of tin, nickel, phosphorus, graphite and, optionally, with iron, and a sliding member exhibiting excellent lubricating performance, wear resistant property and strength even under impact and heavy loads includes a thick steel sheet or plate with which thin steel sheet of the above-mentioned sliding member is integrally joined.
    Type: Grant
    Filed: November 10, 1981
    Date of Patent: March 19, 1985
    Assignees: Oiles Industry Co., Ltd., Mitsuya Seiko Co. Ltd.
    Inventors: Shinji Yamada, Saburo Hanafusa