Patents by Inventor Tadatsugu Nishida

Tadatsugu Nishida 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).

  • Switching mechanism for optical component, lens barrel, and imaging device
    Patent number: 8194176
    Abstract: A switching mechanism for optical component includes: an optical component; a holder member holding the optical component; a drive mechanism having a drive motor that drives the optical component held by the holder member to rotate on a plane orthogonal to an optical axis from an optical axis position at which the optical component is on the optical axis to an evacuation position at which the optical component is off the optical axis; and a restriction member restricting a rotation of the holder member, by which at least a rotation of the optical component held by the holder member is restricted at the optical axis position. The drive mechanism includes the drive motor, a worm attached to a rotation shaft of the drive motor, and a worm wheel meshed with the worm and provided to the holder member.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: June 5, 2012
    Assignee: Sony Corporation
    Inventors: Atsuya Ishii, Tadatsugu Nishida, Atsushi Horidan, Junichi Maenishi
  • Switching mechanism for optical component, lens barrel, and imaging device
    Publication number: 20100165173
    Abstract: A switching mechanism for optical component includes: an optical component; a holder member holding the optical component; a drive mechanism having a drive motor that drives the optical component held by the holder member to rotate on a plane orthogonal to an optical axis from an optical axis position at which the optical component is on the optical axis to an evacuation position at which the optical component is off the optical axis; and a restriction member restricting a rotation of the holder member, by which at least a rotation of the optical component held by the holder member is restricted at the optical axis position. The drive mechanism includes the drive motor, a worm attached to a rotation shaft of the drive motor, and a worm wheel meshed with the worm and provided to the holder member.
    Type: Application
    Filed: December 15, 2009
    Publication date: July 1, 2010
    Applicant: Sony Corporation
    Inventors: Atsuya Ishii, Tadatsugu Nishida, Atsushi Horidan, Junichi Maenishi