Patents by Inventor Atsuya Seko

Atsuya Seko 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).

  • Optical memory playback apparatus
    Patent number: 4190775
    Abstract: Disclosed is an optical memory playback apparatus using an electroluminescent semiconductor element as a combination light source and sensor, which apparatus permits information in an information storage medium to be reproduced in the form of variation in electrical characteristics of the semiconductor element by causing a beam of light issuing from the electroluminescent semiconductor element to be directed to the information storage medium, allowing the light reflected by the information storage medium to impinge on the semiconductor element for thereby inducing variation in the optical and electrical characteristics of the semiconductor element owing to the self-coupling effect.
    Type: Grant
    Filed: June 26, 1978
    Date of Patent: February 26, 1980
    Assignee: Agency of Industrial Science & Technology
    Inventors: Kenjiro Sakurai, Junichi Shimada, Takitaro Morikawa, Yoshinobu Mitsuhashi, Satoshi Ishihara, Atsuya Seko, Tetsutaro Yasuhira