Patents by Inventor Shinichi Imaoka

Shinichi Imaoka 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).

  • Method and apparatus for detecting position/variance of input light using linear and quadratic outputs
    Patent number: 4874939
    Abstract: An apparatus for detecting position/variance of input light is disclosed which includes a photoelectric conversion device receiving input light constituted of a first resistive layer formed of a first photoelectric conversion material and a second resistive layer formed of a second photoelectric conversion material connected with the first resistive layer through a depletion layer or directly, wherein the first resistive layer is provided with uniform resistivity throughout its surface so that a linear output proportional to the average of the distances between one end of the photoelectric conversion device and positions of the input light is detected and the second resistive layer is provided with resistivity dependent upon the distance from its one end so that a quandratic ouput proportional to the average of the squares of the distances between one end of the photoelectric conversion device and positions of the input light is detected.
    Type: Grant
    Filed: September 25, 1987
    Date of Patent: October 17, 1989
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Yoshiro Nishimoto, Yasuji Yoneda, Shinichi Imaoka, Yasuhide Nakai, Akimitsu Nakaue, Yoshihiko Onishi, Hiroyuki Tachibana, Takayoshi Inoue, Takuya Kusaka, Hiroyuki Takamatsu, Shigeki Tojyo, Hiroshi Kajikawa, Kozo Nishimura