Patents by Inventor Masayoshi Ohya

Masayoshi Ohya 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).

  • Publication number: 20040264352
    Abstract: An object of the invention is to provide an optical pickup apparatus in which a condensing lens can be bonded with as large an adhesive coating area as possible. The optical pickup apparatus includes a condensing lens for gathering light emitted from a light source on an optical recording medium, and a lens holder for supporting the condensing lens. The condensing lens has, in an outer periphery in a radial direction thereof, a plurality of lens-side concavities equi-spaced circumferentially so as to open to face the optical recording medium. That part of the condensing lens which faces the lens-side concavity is bonded to the lens holder with an adhesive.
    Type: Application
    Filed: May 14, 2004
    Publication date: December 30, 2004
    Inventor: Masayoshi Ohya