Patents by Inventor Yoshio Kawamata

Yoshio Kawamata 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).

  • Compound image recording apparatus
    Patent number: 4552449
    Abstract: An electrophotographic printer for producing a print of compound copied image and printed character image on a printing medium. The printer has a copying exposure system for forming the first electrostatic latent image on the printing medium on a drum by the exposure of the medium to an image in a certain area of a copy text through an electrically controlled optical switch, and a printing exposure system for forming the second electrostatic latent image by the exposure of the printing medium to a scanning laser beam which is modulated by a laser beam generator in accordance with literal information to be printed.
    Type: Grant
    Filed: October 21, 1983
    Date of Patent: November 12, 1985
    Assignee: Hitachi, Ltd.
    Inventors: Kazuhiro Wakamatsu, Yoshio Kawamata