Patents by Inventor Teruhisa Tsuruga

Teruhisa Tsuruga 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).

  • Insoluble anode made of lead alloy
    Patent number: 4867858
    Abstract: The corrosion resistance of an insoluble anode for use under high current condition, which anode may be made from iron or copper for example, is improved by coating the anode with an alloy of lead, tin and indium.
    Type: Grant
    Filed: March 16, 1988
    Date of Patent: September 19, 1989
    Assignee: Yoshizawa LA Kabushiki Kaisha
    Inventors: Hirokage Matsuzawa, Ikuo Suzuki, Teruhisa Tsuruga, Takashi Orihashi, Katsushi Imanishi, Tadashi Takemura