Patents by Inventor Hidemasa Todo

Hidemasa Todo 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: 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
  • Electrostatic recording medium having an electrically conductive layer containing pre-dispersed electrically conductive carbon black and polyurethane binder resin
    Patent number: 4442160
    Abstract: An electrostatic recording medium is disclosed comprising a recording layer, a conductive layer, and a support, the conductive layer being a dried coating film of a mixture composed of (A) a polyurethane binder resin prepared by reaction of a polyester and a polyisocyanate, and (B) a predispersion of carbon black.
    Type: Grant
    Filed: July 13, 1982
    Date of Patent: April 10, 1984
    Assignees: Daicel Chemical Industries, Ltd., Fuji Xerox Co., Ltd.
    Inventors: Hirotaka Toba, Masanori Itoh, Keita Nakano, Shoji Wakoh, Toshihiko Toyoshima, Hidemasa Todo