Patents by Inventor Yoshihisa Takeo

Yoshihisa Takeo 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 slider, head gimbal assembly and method for manufacturing the same
    Patent number: 8125734
    Abstract: Embodiments of the present invention provide a magnetic slider of which terminals have a sufficiently large process margin for the laser condition in the SBB process. According to one embodiment, a magnetic slider comprises: a read element and a write element; plural wiring lines which are connected to the read element and the write element; a protective film which covers the read element, the write element and the plural-wiring lines; plural slider pads formed on the protective film; and plural studs which respectively connect the slider pads and the wiring lines and are covered by the protective film, wherein each of the slider pads comprises a chromium film, a nickel iron film and a gold film, the nickel iron film is formed between the chromium film and the gold film, and the chromium film is formed between the nickel iron film and one of the studs and is in contact with the protective film.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: February 28, 2012
    Assignee: Hitachi Global Storage Technologies, Netherlands B.V.
    Inventors: Hiroshi Umezaki, Seiji Nakagawa, Yuhsuke Matsumoto, Yoshihisa Takeo, Gen Oikawa, Hiroshi Kamio
  • Magnetic slider, head gimbal assembly and method for manufacturing the same
    Publication number: 20080062565
    Abstract: Embodiments of the present invention provide a magnetic slider of which terminals have a sufficiently large process margin for the laser condition in the SBB process. According to one embodiment, a magnetic slider comprises: a read element and a write element; plural wiring lines which are connected to the read element and the write element; a protective film which covers the read element, the write element and the plural-wiring lines; plural slider pads formed on the protective film; and plural studs which respectively connect the slider pads and the wiring lines and are covered by the protective film, wherein each of the slider pads comprises a chromium film, a nickel iron film and a gold film, the nickel iron film is formed between the chromium film and the gold film, and the chromium film is formed between the nickel iron film and one of the studs and is in contact with the protective film.
    Type: Application
    Filed: September 5, 2007
    Publication date: March 13, 2008
    Applicant: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Hiroshi Umezaki, Seiji Nakagawa, Yuhsuke Matsumoto, Yoshihisa Takeo, Gen Oikawa, Hiroshi Kamio