Patents by Inventor Iko Fukasawa

Iko Fukasawa 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).

  • Polygon mirror motor and polygon mirror supporting structure
    Patent number: 6118568
    Abstract: A polygon mirror assembly includes a polygon mirror and a supporting stand for supporting the polygon mirror. The supporting stand and the polygon mirror are combined in a pressure joining manner. The polygon mirror supporting structure can be provided so that the fastening of the polygon mirror is easily carried out, no unbalance of the center of rotation occurs and any eccentricity can be made extremely small.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: September 12, 2000
    Assignees: Hitachi, Ltd., Hitachi Taga Engineering, Ltd.
    Inventors: Iko Fukasawa, Takeshi Nakajima
  • Polygon mirror motor and polygon mirror supporting structure
    Patent number: 5883455
    Abstract: A polygon mirror assembly includes a polygon mirror and a supporting stand for supporting the polygon mirror. The supporting stand and the polygon mirror are combined in a pressure combination manner. The polygon mirror supporting structure can be provided so that the fastening of the polygon mirror is easily carried out, no unbalance of the center of rotation occurs and any eccentricity can be made extremely small.
    Type: Grant
    Filed: July 3, 1996
    Date of Patent: March 16, 1999
    Assignees: Hitachi, Ltd., Hitachi Taga Engineering,Ltd.
    Inventors: Iko Fukasawa, Takeshi Nakajima
  • Electric rotary machine with toroidal windings on an annular stator core
    Patent number: 4563606
    Abstract: An electric rotary machine provided with a toroidal winding has a stator core made of annular punched seamless laminations. Insulation members, each having partition plates, are mounted on the stator core. Crossover conductor portions interconnecting unit coils of the toroidal winding are retained and guided by the partition plates. The unit coils in each of the slots formed in the stator core are wound by a single continuous electrical conductor, to yield a machine of highly improved performance.
    Type: Grant
    Filed: July 13, 1983
    Date of Patent: January 7, 1986
    Assignee: Hitachi, Ltd.
    Inventors: Iko Fukasawa, Yuji Kumagai