Patents by Inventor Kiichi F. Komatsubara

Kiichi F. Komatsubara 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).

  • Patent number: 4289822
    Abstract: A photoconductive material comprising an amorphous substance whose indispensable constituent elements are silicon, carbon and hydrogen is disclosed. The photoconductive material preferably has a structure expressed by [Si.sub.1-x C.sub.x ].sub.1-y [H].sub.y where 0.02.ltoreq.x.ltoreq.0.3 and 0.02.ltoreq.y.ltoreq.0.3. Up to 40% of the carbon can be substituted by germanium. The peak of response can be established for light of any desired wavelength between approximately 5,600 A-4,500 A. This photoconductive material is particularly useful when applied to a light-sensitive film which is operated in the storage mode. The light-sensitive film includes the photoconductive material in a region in which pairs of free electrons and positive holes are created upon incidence of light.
    Type: Grant
    Filed: June 15, 1979
    Date of Patent: September 15, 1981
    Assignee: Hitachi, Ltd.
    Inventors: Toshikazu Shimada, Yoshifumi Katayama, Kiichi F. Komatsubara