Patents by Inventor Shoji Wako

Shoji Wako 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).

  • Electrostatic record image forming method
    Patent number: 4476473
    Abstract: The auxiliary electrodes in a multi-stylus electrode assembly are coated with an insulating paint to permit precharging of the recording medium.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: October 9, 1984
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Shoji Wako
  • Electrostatic record image forming method
    Patent number: 4468681
    Abstract: The precharging of the surface of an electrostatic recording medium is done sufficiently ahead of the electrode assembly so that all non-uniformities in charge distribution have time to settle out. Preferably, the precharge potential across the recording medium at the electrode assembly differs by no more than approximately 10 volts.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: August 28, 1984
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shoji Wako, Hidemasa Todo
  • Optical memory having serially stocked hologram plates
    Patent number: 4076370
    Abstract: An optical holographic memory device wherein a plurality of hologram plates, each plate comprising an array of sub-holograms, are arranged in a predetermined horizontally registered relation to one another, the amount of information recorded on the plates thereby not being restricted by the light deflecting device utilized to read a selected sub-hologram.
    Type: Grant
    Filed: January 19, 1976
    Date of Patent: February 28, 1978
    Assignee: Xerox Corporation
    Inventor: Shoji Wako