Patents by Inventor Mineo Ohyama

Mineo Ohyama 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
    Patent number: 4926200
    Abstract: In an electrophotographic printer, a photoconductive drum is scanned with a light spot provided by scanning light sources to electrostatically form a latent image with dot on it. The light sources comprise at least two LED print heads different in linear density are provided to print out data different in linear density on one and the same page.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: May 15, 1990
    Inventors: Mineo Ohyama, Shigenobu Katagiri, Hiroomi Kozawa, Koutaro Yamada