Patents by Inventor Tohru Ohi

Tohru Ohi 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).

  • Patent number: 5054296
    Abstract: A pipe for a cooling unit comprises an outer pipe, and an inner pipe shorter than the outer pipe and located at an evaporating portion in the outer pipe, a circulation gap being defined between the inner wall surface of the outer pipe and the outer wall surface of the inner pipe and leading from one end to the other end of the inner pipe, whereby working liquid is permitted to boil up continuously and stably in the evaporating portion even uder a low temperature flow of working liquid.
    Type: Grant
    Filed: May 15, 1990
    Date of Patent: October 8, 1991
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Junji Sotani, Tetsuo Okuyama, Susumu Seo, Tohru Ohi, Naoki Mori, Minoru Mabuchi