Patents by Inventor Yasuil Takagi

Yasuil Takagi 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).

  • Patent number: 6940695
    Abstract: A semi-finished suspension (55) is used for manufacturing a head suspension (11) for a disk drive. The semi-finished suspension includes a base plate (37), a rigid part (27) solidly joined with the base plate through a bridge (57), and a protrusion being the bridge protruding from one of a base plate and rigid part and having a positioning hole (63) formed through the protrusion of the bridge. This positioning hole is aligned with a positioning hole (51) formed through part of a flexure (41).
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: September 6, 2005
    Assignee: NHK Spring Co., Ltd.
    Inventors: Yasuil Takagi, Takeshi Kamisaku
  • Publication number: 20040068859
    Abstract: A method manufactures a head suspension for a disk drive. The method includes a first step of forming a semi-finished suspension (55) having a base plate (37), a rigid part (27) solidly joined with the base plate through a bridge (57), and a positioning hole (63) formed through the bridge. This positioning hole is aligned with a positioning hole (51) formed through part of a flexure (41). A second step of the method fixes a resilient material (31) to the base plate and rigid part of the semi-finished suspension so that the base plate may resiliently support the rigid part through the resilient material. A third step of the method aligns the positioning hole of the flexure with the positioning hole of the bridge and fixes the flexure to the rigid part. A fourth step of the method cuts off the positioning-hole-formed part of the flexure and the bridge including the positioning hole. This suspension is compact and the load beam and flexure thereof are correctly positioned to secure balance.
    Type: Application
    Filed: April 11, 2003
    Publication date: April 15, 2004
    Inventors: Yasuil Takagi, Takeshi Kamisaku