Patents by Inventor Kohshin Nakayama

Kohshin Nakayama 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: 6922842
    Abstract: An optical pick-up device includes a lens that focuses light onto a recording medium, a lens holder that holds the lens, a suspension holder that supports the lens holder disposed opposite a distal end of the lens holder, a frame formed so as to be disposed opposite both lateral surfaces of the lens holder and the distal end of the lens holder, the frame supporting the suspension holder, a plurality of elastic supports that movably support the lens holder, a distal end of the elastic supports mounted on the suspension holder, and an actuator that drives the lens holder, wherein a plurality of projections is provided on at least one of the lens holder, the frame and the suspension holder, the projections acting as stoppers that restrict a rotation of the lens holder so as to prevent excessive deformation of the elastic supports.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: July 26, 2005
    Assignee: TEAC Corporation
    Inventors: Kenji Takahashi, Kohshin Nakayama
  • Publication number: 20020071357
    Abstract: An optical pick-up device includes a lens that focuses light onto a recording medium, a lens holder that holds the lens, a suspension holder that supports the lens holder disposed opposite a distal end of the lens holder, a frame formed so as to be disposed opposite both lateral surfaces of the lens holder and the distal end of the lens holder, the frame supporting the suspension holder, a plurality of elastic supports that movably support the lens holder, a distal end of the elastic supports mounted on the suspension holder, and an actuator that drives the lens holder, wherein a plurality of projections is provided on at least one of the lens holder, the frame and the suspension holder, the projections acting as stoppers that restrict a rotation of the lens holder so as to prevent excessive deformation of the elastic supports.
    Type: Application
    Filed: August 7, 2001
    Publication date: June 13, 2002
    Applicant: TEAC CORPORATION
    Inventors: Kenji Takahashi, Kohshin Nakayama