Patents by Inventor Toshio Shiigi

Toshio Shiigi 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).

  • Suspension for disc drive
    Patent number: 6731472
    Abstract: A suspension for disc drive having a micro actuator mechanism comprises a base plate, a connecting plate having a hinge portion thinner than the base plate, a load beam provided with a flexure, a pair of actuator elements such as PZT, etc. The micro actuator mechanism includes a pivot portion formed between a pair of slits and support walls formed on the connecting plate. The actuator elements are provided individually on the opposite sides of the pivot portion. Each support wall is a bent portion that is formed by raising an edge portion of the connecting plate in the thickness direction of the main portion of the connecting plate.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: May 4, 2004
    Assignees: NHK Spring Co., Ltd., Hitachi, Ltd.
    Inventors: Hiroshi Okamoto, Koji Uozumi, Masao Hanya, Tetsuya Fujiwara, Toshio Shiigi, Kenichi Takikawa, Osamu Iriuchijima
  • Suspension for disc drive
    Publication number: 20010043443
    Abstract: A suspension for disc drive having a micro actuator mechanism comprises a base plate, a connecting plate having a hinge portion thinner than the base plate, a load beam provided with a flexure, a pair of actuator elements such as PZT, etc. The micro actuator mechanism includes a pivot portion formed between a pair of slits and support walls formed on the connecting plate. The actuator elements are provided individually on the opposite sides of the pivot portion. Each support wall is a bent portion that is formed by raising an edge portion of the connecting plate in the thickness direction of the main portion of the connecting plate.
    Type: Application
    Filed: March 12, 2001
    Publication date: November 22, 2001
    Applicant: NHK Spring Co., Ltd.
    Inventors: Hiroshi Okamoto, Koji Uozumi, Masao Hanya, Tetsuya Fujiwara, Toshio Shiigi, Kenichi Takikawa, Osamu Iriuchijima