Patents by Inventor Yooji Surisawa

Yooji Surisawa 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).

  • Heat collector
    Patent number: 4505263
    Abstract: A heat collector for a solar heat utilization system comprises a heat collecting pipe and a reflecting plate for focusing solar light on the pipe. This pipe has a first tubular portion for receiving solar light collected by the reflecting plate, and a second tubular portion for receiving direct solar light. The second portion has thermal expansion coefficient larger by a predetermined amount than that of the first portion, and thermally expands at the same rate as the first portion.
    Type: Grant
    Filed: January 27, 1983
    Date of Patent: March 19, 1985
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Naoyoshi Nameda, Yooji Surisawa, Yasunobu Nakamoto, Hideshi Sekiya