Patents by Inventor Katsuhisa Niwa

Katsuhisa Niwa 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).

  • Patent number: 5280161
    Abstract: Light emitted from either one or two light sources is converged by first and second lenses to illuminate a strip shaped area where an object with a bar code is disposed. Alternatively, the first and second lenses may be combined with one another to form a single, multi-functional lens.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: January 18, 1994
    Assignee: West Electric Company, Ltd.
    Inventor: Katsuhisa Niwa
  • Patent number: 4572635
    Abstract: In an automatic film loading system, a film winding spool (9) is driven at a higher speed by a motor (20) through gears (120, 12, 122, 13), and the film advancing sprocket (4) is driven by a speed to drive the film at a slower speed before catching of the film by a rubber member of the spool, and after the catching, a clutch (121) disconnects the driving of the sprocket (4) from the gears (120, 12).
    Type: Grant
    Filed: June 5, 1984
    Date of Patent: February 25, 1986
    Assignee: West Electric Company, Ltd.
    Inventors: Yu Tsuzuki, Hiroshi Watanabe, Katsuhisa Niwa
  • Patent number: 4545667
    Abstract: A camera with automatic strobe is provided with an electric motor which rotates only in a predetermined single direction, a motion transmitting apparatus comprising to spring means and an abutting means to transmit the energy of rotation to the strobe part with freedom of manual pushing of the strobe part and the motor is controlled by a motor drive control circuit which is configurated to prohibit a necessary motion of the strobe part and protrude the strobe part only for necessary occasion.
    Type: Grant
    Filed: October 25, 1983
    Date of Patent: October 8, 1985
    Assignee: West Electric Company, Ltd.
    Inventors: Katsuhisa Niwa, Takahiro Ikeda
  • Patent number: 4502770
    Abstract: Controlling of film winding-up and film rewinding are carried out responding to an insertion of film, open and close of the back lid of the camera and moving of the film; and the motor is stopped when the status of the camera operation is abnormal, such as film is not filled or film is caught or the back lid is not completely closed; and when the film is set and back lid is closed, the film is automatically wound up to the position of the first frame photographing by a half-pushing of a shutter release button, thereby eliminating necessity of the film frame number counter or the like; by quick stopping of the motor at abnormal states, waste of power source current due to motor over current is eliminated.
    Type: Grant
    Filed: November 8, 1983
    Date of Patent: March 5, 1985
    Assignee: West Electric Company, Ltd.
    Inventors: Katsuhisa Niwa, Takahiro Ikeda