Patents by Inventor Akihiko Kumagai

Akihiko Kumagai 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).

  • Method and apparatus for modeling coil springs using a force field generator
    Patent number: 7606690
    Abstract: A method for modeling a coil spring on a suspension system in terms of derived torque and force characteristics of the spring comprising the steps of providing a force field generator for simulating the spring, securing the force field generator to the suspension system, activating the force field generator to produce forces for characterizing the spring, measuring the forces; and deriving a spring design based upon the measured forces.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: October 20, 2009
    Assignee: NHK International Corporation
    Inventors: Shinichi Nishizawa, Akihiko Kumagai
  • Method and apparatus for modeling coil springs using a force field generator
    Publication number: 20030111309
    Abstract: A method for modeling a coil spring on a suspension system in terms of derived torque and force characteristics of the spring comprising the steps of providing a force field generator for simulating the spring, securing the force field generator to the suspension system, activating the force field generator to produce forces for characterizing the spring, measuring the forces; and deriving a spring design based upon the measured forces.
    Type: Application
    Filed: March 4, 2002
    Publication date: June 19, 2003
    Inventors: Shinichi Nishizawa, Akihiko Kumagai
  • Facsimile
    Patent number: 6556314
    Abstract: A facsimile provided with a easily detachable scanner disclosed. When a button 7 provided in a panel 6 of a facsimile body F is pushed, lower a right end 10R of a release lever 10 is depressed, and the release lever 10 is turned on a pivot 10C to raise its left end 10L, thereby boosting a bottom 11 of the scanner S. In consequence thereof, the scanner S is ached from the facsimile body F.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: April 29, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kenichi Shiraishi, Hiroshi Kawamoto, Hiroaki Takeshima, Mamoru Fujii, Akihiko Kumagai