Patents by Inventor Masahiko Ohtsuji

Masahiko Ohtsuji 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).

  • Copying machine with original-position confirming device
    Patent number: 4707117
    Abstract: An original-position confirming device adaptable to a relatively large sized copying machine is disclosed. The device comprises a transparent base plate which is supported on a platform of a copying machine and a pair of cylindrical lamps changable between two kinds of light intensity. During a mode for confirming the position of a desired original image, the lamps are moved to a desired position suitable for confirming the original image therethrough by manipulating manual operation switches. During a mode for copying the original, the lamps traverse the original at a predetermined rate.An operator can easily confirm the position of the original image to be copied by referring to a measuring scale provided on the platform.
    Type: Grant
    Filed: October 2, 1986
    Date of Patent: November 17, 1987
    Assignee: Dainippon Screen Mfg. Co., Ltd.
    Inventors: Kiyoshi Takenaka, Masahiko Ohtsuji, Hiroaki Kabuto