Patents by Inventor Yoshihori Takeuohi

Yoshihori Takeuohi 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).

  • Magnetic head slider having optimized ratio of negative pressure bearing to a front or center step bearing
    Patent number: 6842309
    Abstract: A magnetic head slider, for sliding on a magnetic disk, which comprises a leading edge, a trailing edge, an air bearing surface having a front step bearing of submicron depth made from the leading edge, and a rail surface made from the front step bearing. A negative pressure recess, which is more profound than the front step bearing, is made from the rail surface, and a side step bearing with a depth identical to that of the front step bearing is made from the rail surface, wherein the ratio of depth R of the recess and depth ?s of the front step bearing is R/?s?5.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: January 11, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Hidekazu Kohira, Masaaki Matsumoto, Kiyoshi Hashimoto, Masayoshi Endo, Akio Takakura, Yoshihori Takeuohi, Shinsuke Higuchi, Akira Iida
  • Magnetic head slider and magnetic disk apparatus using the same
    Publication number: 20040037006
    Abstract: A magnetic head slider for sliding on the magnetic disk, which comprises:
    Type: Application
    Filed: August 27, 2003
    Publication date: February 26, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Hidekazu Kohira, Masaaki Matsumoto, Kiyoshi Hashimoto, Masayoshi Endo, Akio Takakura, Yoshihori Takeuohi, Shinsuke Higuchi, Akira Iida