Patents by Inventor Toshiharu Yoshidomi

Toshiharu Yoshidomi 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).

  • Vortex flow blower
    Patent number: 5281083
    Abstract: A vortex flow blower including a blower casing having an annular flow passageway extending from an inlet port for receiving fluid to an outlet port for discharging the fluid, the outlet port being disposed adjacent to the inlet port, and an impeller accommodated in the blower casing for producing a vortex flow of the fluid in the annular flow passageway.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: January 25, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Eiichi Ito, Susumu Yamazaki, Masayuki Fujio, Toshiharu Yoshidomi, Hiroshi Asabuki, Kazuo Kobayashi
  • Vortex blower
    Patent number: D327316
    Type: Grant
    Filed: April 19, 1991
    Date of Patent: June 23, 1992
    Assignee: Hitachi, Ltd.
    Inventors: Toshiharu Yoshidomi, Takeshi Abe, Eiichi Ito, Masayuki Fujio, Kazuo Kobayashi, Kengo Hasegawa, Yukio Chihara