Patents by Inventor Honami Oosawa

Honami Oosawa 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).

  • Counterrotating axial blower
    Patent number: 7156611
    Abstract: An axial-flow fan with double impellers is provided that can produce a larger amount of air and a higher static pressure than can be achieved with conventional fans. The axial-flow fan with double impellers has a first axial-flow fan unit and a second axial-flow fan unit. The first axial-flow fan unit includes a first case, a first impeller and a plurality of webs that fix a first motor to the first case. The second axial-flow fan unit includes a second case, a second impeller and a plurality of webs that fix a second motor to the second case. The first case and the second case are coupled together to form a housing. The webs of the first axial-flow fan unit and the webs of the second axial-flow fan unit are combined together to form a plurality of stationary webs arranged in the housing. The number of front blades provided at the first impeller is set to five, the number of stationary blades is set to three, and the number of rear blades provided at the second impeller is set to four.
    Type: Grant
    Filed: April 28, 2003
    Date of Patent: January 2, 2007
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Honami Oosawa, Katsumichi Ishihara, Toshiyuki Nakamura, Takashi Kaise, Yoshihiko Aizawa, Seiji Nishimura
  • Counterrotating axial blower
    Publication number: 20050106026
    Abstract: An axial-flow fan with double impellers is provided that can produce a larger amount of air and a higher static pressure than can be achieved with conventional fans. The axial-flow fan with double impellers has a first axial-flow fan unit Sand a second axial-flow fan unit. The first axial-flow fan unit includes a first case, a first impeller and a plurality of webs that fix a first motor to the first case. The second axial-flow fan unit includes a second case, a second impeller and a plurality of webs that fix a second motor to the second case. The first case and the second case are coupled together to form a housing. The webs of the first axial-flow fan unit and the webs of the second axial-flow fan unit are combined together to form a plurality of stationary webs arranged in the housing. The number of front blades provided at the first impeller is set to five, the number of stationary blades is set to three, and the number of rear blades provided at the second impeller is set to four.
    Type: Application
    Filed: April 28, 2003
    Publication date: May 19, 2005
    Applicant: Sanyo Denki Co., Ltd.
    Inventors: Honami Oosawa, Katsumichi Ishihara, Toshiyuki Nakamura, Takashi Kaise, Yoshihiko Aizawa, Seiji Nishimura
  • Axial fan with double impellers rotating in mutually opposite directions
    Patent number: D516194
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: February 28, 2006
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Honami Oosawa, Katsumichi Ishihara, Yoshihiko Aizawa
  • Axial fan with double impellers rotating in mutually opposite directions
    Patent number: D516693
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: March 7, 2006
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Honami Oosawa, Katsumichi Ishihara, Yoshihiko Aizawa
  • Impeller for an axial fan
    Patent number: D517674
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: March 21, 2006
    Assignee: Sanyo Denki Co., Ltd.
    Inventors: Honami Oosawa, Katsumichi Ishihara, Yoshihiko Aizawa