Patents by Inventor Masashi Uematsu

Masashi Uematsu 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 apparatus having spring holding means for lenses
    Patent number: 5157536
    Abstract: An optical apparatus according to this invention has an optical member for scanning light beams, a datum surface to which the optical member is fixed, an elastic member for fixing the optical member to the datum surface by pressing the optical member against the datum surface so that the optical member is placed easily and accurately on the datum surface by means of the elastic member. The optical member is fixed to the datum surface only by means of the elastic member, enabling the optical member to be replaced easily.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: October 20, 1992
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Masashi Uematsu
  • Image forming apparatus
    Patent number: 4632585
    Abstract: In an image forming apparatus, a holder for holding a roll wound in a rolled state from a sheet is provided on a housing for covering a body having an image forming function.
    Type: Grant
    Filed: March 13, 1985
    Date of Patent: December 30, 1986
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuyuki Oyamatsu, Masashi Uematsu, Hiroshi Sakai