Patents by Inventor Akiyoshi Kitazima

Akiyoshi Kitazima 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).

  • Laminated piezoelectric element for use as a drive device
    Patent number: 6595628
    Abstract: A reliable piezoelectric actuator whose warpage is prevented and of which electrodes are prevented from peeling off, and an ink-jet print head including the piezoelectric actuator are manufactured. A piezoelectric sheet having individual electrodes formed thereon and another piezoelectric sheet having common electrodes formed thereon are stacked alternately on top of each other in layers, with an insulating sheet having surface electrodes placed on the top. Each piezoelectric sheet has through holes. The through holes are formed such that through holes adjacent in a direction parallel to the alignment of the individual electrodes are not aligned.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: July 22, 2003
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Atsuhiro Takagi, Akiyoshi Kitazima
  • Laminated piezoelectric element
    Publication number: 20020113847
    Abstract: A reliable piezoelectric actuator whose warpage is prevented and of which electrodes are prevented from peeling off, and an ink-jet print head including the piezoelectric actuator are manufactured. A piezoelectric sheet having individual electrodes formed thereon and another piezoelectric sheet having common electrodes formed thereon are stacked alternately on top of each other in layers, with an insulating sheet having surface electrodes placed on the top. Each piezoelectric sheet has through holes. The through holes are formed such that through holes adjacent in a direction parallel to the alignment of the individual electrodes are not aligned.
    Type: Application
    Filed: February 19, 2002
    Publication date: August 22, 2002
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Atsuhiro Takagi, Akiyoshi Kitazima