Patents by Inventor Katsuaki Ando

Katsuaki Ando 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).

  • Variable reluctance-type resolver
    Patent number: 7030607
    Abstract: A variable reluctance-type resolver which does not deteriorate detecting accuracy, and which can fix the rotor to the rotate shaft cheaply is comprised of a stator 5 on which coils 6 are wound, a rotor provided with protrude poles 4a and an annular stopper 10 made of magnetic material. An outer diameter DS of the stopper 10 is selected to be smaller than a valley diameter DR of the rotor 4. Leakage of the magnetic flux from the stator to the stopper is prevented, and the stopper made of the magnetic material can fix the rotor in cheaper way.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: April 18, 2006
    Assignees: Favess Co., Ltd, Toyoda Koki Kabushiki Kaisha, Koyo Seiko Co., Ltd.
    Inventors: Katsuaki Ando, Hiroyuki Takahashi
  • Variable reluctance-type resolver
    Publication number: 20050040816
    Abstract: The present invention intends to provide a variable reluctance-type resolver which does not deteriorate detecting accuracy, and which can fix the rotor to the rotate shaft cheaply. For such purpose, the resolver 1 is comprised of a stator 5 on which coils 6 are wound, a rotor provided with protrude poles 4a, an annular stopper 10 made of magnetic material. An outer diameter DS of the stopper 10 is selected to be smaller than a valley diameter DR of the rotor 4. Leakage of the magnetic flux from the stator to the stopper is prevented, and stopper made of the magnetic material can fix the rotor in cheaper way.
    Type: Application
    Filed: July 15, 2004
    Publication date: February 24, 2005
    Applicants: FAVESS Co., Ltd., TOYODA KOKI KABUSHIKI KAISHA, Koyo Seiko Co., Ltd.
    Inventors: Katsuaki Ando, Hiroyuki Takahashi