Patents by Inventor Hiroichi Oshiyama

Hiroichi Oshiyama 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: 4130997
    Abstract: A refrigerator comprises a refrigerating cycle in which a refrigerant is charged and which includes a cooler for a freezing compartment, a closed loop which is branched from the refrigerating cycle and includes a cooler for a refrigerating compartment, and a heating device provided in the closed loop which supplies the refrigerant to the closed loop by means of vapor bubble pumping action, to thereby control the refrigerant flow in the closed loop.
    Type: Grant
    Filed: December 8, 1976
    Date of Patent: December 26, 1978
    Assignee: Hitachi, Ltd.
    Inventors: Toshitsugu Hara, Yoritsune Abe, Katsuji Ootuka, Yasushige Kashiwabara, Hiroichi Oshiyama, Michio Yanadori, Eisaku Kato, Kichizaemon Okazaki