Patents by Inventor Kunitomo Yamasaki

Kunitomo Yamasaki 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).

  • Electrophotographic copying machine with paper feeding and discharge trays
    Patent number: 5111252
    Abstract: An electrophotographic copying machine includes a paper feeding tray and a paper discharging tray respectively attached to both end surfaces of a body, each of which has a first, a second and a third tray plates which are rotatably connected to each other. When the machine is not used, the first, second and third tray plates are contained in the body in a state where the same are collapsed and folded over each other and, when the machine is used, the first, second and third tray plates are withdrawn and developed. A plurality of ribs which are extended in a paper feeding direction are on one upper surface of the first plate attached to the body in a rotatable manner, and a plurality of through holes, or slits, which receive the ribs when the first, second and third tray plates are collapsed are formed on the second and third tray plates.
    Type: Grant
    Filed: August 22, 1990
    Date of Patent: May 5, 1992
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Fumihiko Hamada, Kunio Tsuboi, Mitihiko Hasegawa, Yasuji Ichizawa, Toshiya Yabe, Kunitomo Yamasaki, Yasunobu Takahashi, Katsuji Mizuta