Patents by Inventor Koichi MATSUYAMA

Koichi MATSUYAMA 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).

  • Optical element retaining device, optical element transfer device and optical pickup device
    Patent number: 8520487
    Abstract: An element holding device of the present invention includes: a guide portion engaging with a guide shaft; a lens fixing portion on which to fix a collimator lens; an arm portion; an insertion portion having a hole portion in which to insert a guide shaft; a wire fixing portion made by protruding a side surface of the insertion portion in a ?Y direction; and a wire fixed on the wire fixing portion. A bent portion being a leading end portion of the wire is housed in a slit. Thereby, excess deformation of a contact portion is suppressed.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: August 27, 2013
    Assignees: SANYO Electric Co., Ltd., SANYO Optec Design Co., Ltd.
    Inventors: Mitsuhiro Hashimoto, Koichi Matsuyama
  • OPTICAL ELEMENT RETAINING DEVICE, OPTICAL ELEMENT TRANSFER DEVICE AND OPTICAL PICKUP DEVICE
    Publication number: 20130039161
    Abstract: An element holding device of the present invention includes: a guide portion engaging with a guide shaft; a lens fixing portion on which to fix a collimator lens; an arm portion; an insertion portion having a hole portion in which to insert a guide shaft; a wire fixing portion made by protruding a side surface of the insertion portion in a ?Y direction; and a wire fixed on the wire fixing portion. A bent portion being a leading end portion of the wire is housed in a slit. Thereby, excess deformation of a contact portion is suppressed.
    Type: Application
    Filed: August 9, 2012
    Publication date: February 14, 2013
    Applicants: SANYO OPTEC DESIGN CO. LTD., SANYO ELECTRIC CO., LTD.
    Inventors: Mitsuhiro HASHIMOTO, Koichi MATSUYAMA