Patents by Inventor Kazuo Morinaga

Kazuo Morinaga 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).

  • Optical exposure unit for electrophotographic printing device
    Patent number: 4435064
    Abstract: An electrophotographic printing device is provided with an exposure unit comprising light-emitting diodes which are light sources and means for transmitting the light beams emitted from the light-emitting diodes and converging or focusing them like converging lenses, whereby electrostatic latent images of characters and the like are formed on the surface of a photosensitive member.
    Type: Grant
    Filed: June 24, 1981
    Date of Patent: March 6, 1984
    Assignee: Ricoh Co., Ltd.
    Inventors: Toshiji Tsukada, Kazuo Morinaga