Patents by Inventor Tomomitsu Hamaguchi

Tomomitsu Hamaguchi 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: 4150916
    Abstract: An axial flow inducer for hydraulic devices is disclosed. The inducer is coaxially arranged in front of a fluid suction inlet side of a main impeller of an hydraulic device, for example, a pump and constituted by at least two axial flow blade parts which are constructed and arranged so as to prevent an occurrence of noise over all flow amount region of the impeller.
    Type: Grant
    Filed: March 22, 1977
    Date of Patent: April 24, 1979
    Assignee: Nikkiso Co., Ltd.
    Inventors: Toshiaki Tsutsui, Akira Oyamada, Tomomitsu Hamaguchi, Akihiko Agata