Patents by Inventor Soji Ohhara

Soji Ohhara 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).

  • Production of photoelectric conversion film and contact type image sensor
    Patent number: 4828876
    Abstract: A process for preparing a photoelectric conversion film containing one or more compound semiconductor made from Cd and group Vi element comprises coating a paste containing (a) a photoelectric conversion material, (b) a dopant, (c) a flux, (d) an organic binder, and optionally (e) a glass frit on a substrate, and sintering it at 300.degree. C.-800.degree. C. in an inert gas blanket.
    Type: Grant
    Filed: February 4, 1986
    Date of Patent: May 9, 1989
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Soji Ohhara, Satoshi Nishigaki, Shuhei Tsuchimoto, Ryusuke Kita
  • Heat-treating Cd-containing photoelectric conversion film in the presence of a cadmium halide
    Patent number: 4759951
    Abstract: A process for producing a photoelectric conversion film comprising heat-treating a coating (A) of a photoconductive material composed chiefly of at least one of CdSe, CdS, CdTe, CdS.sub.x Se.sub.1-x and CdS.sub.x Te.sub.1-x wherein x is a real number of less than 1, opposite from a coating (B) in proximity thereto, the coating (B) being made of a material composed chiefly of CdS and a Cd halide.
    Type: Grant
    Filed: September 23, 1986
    Date of Patent: July 26, 1988
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masataka Itoh, Masaya Nagata, Shuhei Tsuchimoto, Atsushi Yoshinouchi, Hiroshi Wada, Katsushi Okibayashi, Soji Ohhara