Patents by Inventor Hideaki Tsuchiyama

Hideaki Tsuchiyama 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).

  • Fluid compressor with selector valve
    Patent number: 5547344
    Abstract: A fluid compressor comprising a closed casing, compression mechanism provided in the casing for compressing an uncompressed low-pressure fluid and discharging a compressed high-pressure fluid into an inside space of the casing, and a selector valve attached to the casing and including a valve disk which is rotatable in the casing so as to change the passage of the high-pressure fluid flowing out from the inside space of the casing to an outside space of the casing and to switch the passage of the low-pressure fluid flowing from the outside of the casing into the selector valve to communicate with the compression mechanism.
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: August 20, 1996
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akihiko Sugiyama, Hideaki Tsuchiyama, Toshihiko Futami, Hisataka Kato, Takao Hoshi