Patents by Inventor Kazuhisa Katoh

Kazuhisa Katoh 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).

  • Flexible multi-layer photoreceptor of electrophotography
    Patent number: 4226929
    Abstract: A photoreceptor of electrophotography having a flexibility and a sensitivity to electromagnetic wavelengths of a wide range extending as far as the red color region of the spectrum of light rays is produced by forming a layer of a halogen-doped Se-S alloy on a substrate and further forming on said layer a halogen-doped Se-Te alloy layer. The Se-S alloy contains sulfur in a weight ratio of 0.1 to 0.35 to the Se-S alloy. The Se-Te alloy contains tellurium in a weight ratio of 0.05 to 0.35 to the Se-Te alloy.
    Type: Grant
    Filed: November 7, 1978
    Date of Patent: October 7, 1980
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Toru Teshima, Hiroshi Nozaki, Minoru Koyama, Kazuhisa Katoh