Patents by Inventor Sotoyuki Kitamura

Sotoyuki Kitamura 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).

  • Substrate for solar cell and solar cell employing the substrate
    Patent number: 5411601
    Abstract: A solar cell is constructed using a heterojunction formed by layering an n-type compound semiconductor followed by a p-type compound semiconductor on an insulator layer containing titanium oxide which has been formed on one side of a glass plate. The insulator layer can improve the photoelectric conversion efficiency of the solar cell by lowering the sheet resistance of the n-type semiconductor film which is used as the window material of the solar cell. In addition, light transmittance is improved.
    Type: Grant
    Filed: November 2, 1993
    Date of Patent: May 2, 1995
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroshi Higuchi, Takashi Arita, Sotoyuki Kitamura, Mikio Murozono