Patents by Inventor Hirofumi Kariya

Hirofumi Kariya 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).

  • Thin-form centrifugal fan
    Patent number: 6913444
    Abstract: A small, lightweight and inexpensive thin-form centrifugal fan having a first moving blade; a second moving blade; and a stationary blade disposed between the first moving blade and the second moving blade and directing gas taken in by rotation of the first moving blade to the second moving blade. The first and second moving blades are formed such that the rigidity of their central portions is smaller than the rigidity of their outer perimeter areas.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: July 5, 2005
    Assignee: Minebea Co., Ltd.
    Inventors: Hirofumi Kariya, Hiroki Yamashita
  • Thin-form centrifugal fan
    Publication number: 20030228215
    Abstract: A small, lightweight and inexpensive thin-form centrifugal fan having a first moving blade; a second moving blade; and a stationary blade disposed between the first moving blade and the second moving blade and directing gas taken in by rotation of the first moving blade to the second moving blade. The first and second moving blades are formed such that the rigidity of their central portions is smaller than the rigidity of their outer perimeter areas.
    Type: Application
    Filed: March 14, 2003
    Publication date: December 11, 2003
    Applicant: Minebea Co., Ltd.
    Inventors: Hirofumi Kariya, Hiroki Yamashita