Patents by Inventor Hideki Yoshimura

Hideki Yoshimura 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).

  • Cutting-free bronze alloys
    Patent number: 6419766
    Abstract: A cutting-free bronze alloy which is substantially free of lead contains 1 to 13 wt. % of tin, not larger than 18 wt. % of zinc, 0.5 to 6 wt. % of bismuth, 0.05 to 3 wt. % of antimony, not larger than 1 wt. % of phosphorus, less than 0.4 wt. % of lead, and the balance being copper. The alloy may further contain 0.1 to 3 wt. % of nickel. When 3 to 8 wt. % of tin and 6 to 10 wt. % of zinc are present, the alloy is particularly suitable for use as a plumbing faucet and fixture. Likewise, when 8.5 to 13 wt. % of tin and not larger than 1 wt. % of zinc are present, the alloy is suitable for use as a sliding member.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: July 16, 2002
    Assignees: Tabuchi Corp., Chuetsu Metal Works Co., Ltd.
    Inventors: Yukinori Ikemiya, Hideki Yoshimura, Kenji Sugiyama, Kunio Nakashima, Masao Hosoda, Wataru Yago, Kazuyuki Inagaki