Patents by Inventor Hiroya Sawairi

Hiroya Sawairi 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 actuator including piezoelectric elements fixed to the arms of a fired glass-ceramic substrate
    Patent number: 7277259
    Abstract: A magnetic head actuator includes a head-holding substrate having a pair of movable arms for clamping a magnetic head, and piezoelectric elements fixed along the pair of movable arms to move the pair of movable arms in response to an applied voltage. The head-holding substrate comprises a fired glass-ceramic compact containing at least one of SiO2, B2O3, and Al2O3. The piezoelectric elements are formed on the head-holding substrate with a piezoelectric material by printing and low-temperature firing.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: October 2, 2007
    Assignee: Alps Electric Co., Ltd.
    Inventors: Yutaka Yamamoto, Jun-ichi Murakami, Hiroya Sawairi
  • Magnetic head actuator and method for manufacturing the same
    Publication number: 20040160703
    Abstract: A magnetic head actuator includes a head-holding substrate having a pair of movable arms for clamping a magnetic head, and piezoelectric elements fixed along the pair of movable arms to move the pair of movable arms in response to an applied voltage. The head-holding substrate comprises a fired glass-ceramic compact containing at least one of SiO2, B2O3, and Al2O3. The piezoelectric elements are formed on the head-holding substrate with a piezoelectric material by printing and low-temperature firing.
    Type: Application
    Filed: February 6, 2004
    Publication date: August 19, 2004
    Applicant: Alps Electric Co., Ltd.
    Inventors: Yutaka Yamamoto, Jun-ichi Murakami, Hiroya Sawairi