Patents by Inventor Hisaki Koyama

Hisaki Koyama 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: 20110194012
    Abstract: To provide a camera having improved efficiency. A camera is provided with a fitting portion to which a lens barrel is detachably fitted, and a first driving portion capable of driving an aperture portion included in the lens barrel. The first driving portion can be switched between an actuable state in which it is actuated in response to an input and drive the aperture portion and an actuation-restricted state to restrict the actuation. The first driving portion is brought into the actuation-restricted state when the lens barrel fitted to the fitting portion is equipped with a second driving portion capable of driving the aperture portion.
    Type: Application
    Filed: April 11, 2011
    Publication date: August 11, 2011
    Applicant: NIKON CORPORATION
    Inventor: Hisaki Koyama
  • Publication number: 20080117304
    Abstract: To provide a camera having improved efficiency. A camera is provided with a fitting portion to which a lens barrel is detachably fitted, and a first driving portion capable of driving an aperture portion included in the lens barrel. The first driving portion can be switched between an actuable state in which it is actuated in response to an input and drive the aperture portion and an actuation-restricted state to restrict the actuation. The first driving portion is brought into the actuation-restricted state when the lens barrel fitted to the fitting portion is equipped with a second driving portion capable of driving the aperture portion.
    Type: Application
    Filed: November 16, 2007
    Publication date: May 22, 2008
    Applicant: NIKON CORPORATION
    Inventor: Hisaki Koyama
  • Patent number: 5083879
    Abstract: In an image recording apparatus in which a pinch roller restrains lateral movement of image receiving paper, a skew feed roller and an edge guide are operative, by virtue of a curved portion of the paper feed path between the pinch roller and the skew roller, to position the paper laterally despite the restraint imposed by the pinch roller. The skew roller and the edge guide are disposed along a straight portion of the paper feed path.
    Type: Grant
    Filed: April 30, 1991
    Date of Patent: January 28, 1992
    Assignee: Nikon Corporation
    Inventors: Tsuyoshi Sato, Mikihito Furuya, Tsutomu Mitsuishi, Hisaki Koyama