Patents by Inventor Kouhei Saitoh

Kouhei Saitoh 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).

  • Electrophotographic printer with light micro-shutters
    Patent number: 4763142
    Abstract: An image forming apparatus has a light source, and one or more liquid crystal units for forming a latent image on the photosensitive drum by controlling the passage of the light from the light source between the light source and the drum. The liquid crystal units have a plurality of shutter arrays arranged with a plurality of microshutters. The microshutter has a miniature region for controlling the passage of the light, and the regions are different at every microshutter for forming the individual shutter arrays.
    Type: Grant
    Filed: September 3, 1986
    Date of Patent: August 9, 1988
    Assignee: Casio Computer Co., Ltd.
    Inventors: Kouhei Saitoh, Hisashi Aoki, Kenzo Endo, Atsushi Mawatari