Patents by Inventor Yu Tsuzuki

Yu Tsuzuki 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: 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: 4083058
    Abstract: Flash and camera apparatus integrally incorporating an electronic flashing device for firing a flash discharge tube and a photographic camera device with a fixed focus lens system. The apparatus includes an aperture change-over mechanism for changing the aperture to an appropriate value depending on the paticular mode of photography selected. The selectable modes include both far and near modes for objects which are within allowable range of the camera to achieve proper flash mode photography and also daylight mode photography. An indication element for indicating the existence of a condition under which the electronic flash device is able to fire in the flash mode and which indicates whether the distance to the object is far or near is also provided. Further provided is a switch mechanism for simultaneously performing the functions of operating the aperture changeover mechanism, operating the indication element and supplying power to the electronic flash device.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: April 4, 1978
    Assignee: West Electric Company, Ltd.
    Inventors: Hiroshi Iwata, Yu Tsuzuki