Patents by Inventor Akinori Akanuma

Akinori Akanuma 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).

  • Hydrogen compressor system
    Patent number: 8151834
    Abstract: A hydrogen compressor system comprises a hydrogen generating apparatus for generating hydrogen gas to be supplied to a fuel cell vehicle and a multi-stage reciprocating compressor for pressurizing the hydrogen gas generated by the hydrogen generating apparatus. High pressure tanks having maximum use pressure of 20 MPa are connected to middle stages of the multi-stage reciprocating compressor by gas supplying lines via valves. By opening/closing the valves, hydrogen gas in the high pressure tanks can be selectively supplied to the middle stages of the multi-stage reciprocating compressor.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: April 10, 2012
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Shinichiro Kurita, Shigeru Arai, Akinori Akanuma, Youichirou Fukai, Haruo Miura
  • Hydrogen compressor system
    Publication number: 20070227614
    Abstract: A hydrogen compressor system comprises a hydrogen generating apparatus for generating hydrogen gas to be supplied to a fuel cell vehicle and a multi-stage reciprocating compressor for pressurizing the hydrogen gas generated by the hydrogen generating apparatus. High pressure tanks having maximum use pressure of 20 MPa are connected to middle stages of the multi-stage reciprocating compressor by gas supplying lines via valves. By opening/closing the valves, hydrogen gas in the high pressure tanks can be selectively supplied to the middle stages of the multi-stage reciprocating compressor.
    Type: Application
    Filed: January 25, 2007
    Publication date: October 4, 2007
    Applicant: Hitachi Plant Technologies, Ltd.
    Inventors: Shinichiro Kurita, Shigeru Arai, Akinori Akanuma, Youichirou Fukai, Haruo Miura