Patents by Inventor Yoshitaka Ogino

Yoshitaka Ogino 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: 4365888
    Abstract: A drive motor (3) for a photoconductive belt (1) is energized for continuous rotation and connected to the belt (1) through a clutch. The clutch is disengaged and the belt (1) held stationary while an electrostatic image of an original document is formed on the belt (1). Then, the clutch is engaged and the belt (1) driven for developing the electrostatic image into a toner image and transferring and fixing the toner image to a copy sheet. The motor (3) also drives a pulse generator (18) which produces timing pulses. The timing pulses are counted by a counter. A control unit (E19) such as a microcomputer (19) controls the operation of the apparatus in accordance with predetermined counts in the counter. Marks (15.sub.1), (15.sub.2) are provided on the belt (1) in spaced relation. A compensation unit senses the number of timing pulses counted by the counter between sensing of the marks (15.sub.1), (15.sub.2).
    Type: Grant
    Filed: October 29, 1980
    Date of Patent: December 28, 1982
    Assignee: Ricoh Company, Ltd.
    Inventors: Masao Hosaka, Yoshitaka Ogino, Nobuyuki Yanagawa