Patents by Inventor Yasuhiko Tsuchihashi

Yasuhiko Tsuchihashi 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).

  • Compressed powder magnetic core and method for fabricating same
    Patent number: 5160447
    Abstract: A compressed powder magnetic corer is disclosed in which the mixing ratio (vol %) of the parts occupied by binder resin, ferromagnetic powder and void formed therebetween is set for a specified value so as to obtain desired magnetic characteristics.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: November 3, 1992
    Assignee: Kabushiki Kaisha Sankyo Seiki Seisakusho
    Inventors: Masayuki Ishikawa, Tadashi Taguchi, Yasuhiko Tsuchihashi