Patents by Inventor Yoichi Nishizawa

Yoichi Nishizawa 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).

  • Patent number: 6859704
    Abstract: A self-alignment torque correcting apparatus for a vehicle that compensates for a surplus and a shortage of self-alignment torque of the vehicle. The apparatus includes a driving source that confers a driving force to a steering mechanism of the vehicle; a steering angle detecting portion that detects a steering angle of an operating member; a vehicle speed detecting portion that detects a speed of the vehicle; and a self-alignment torque compensating portion that compensates for a surplus and a shortage of self-alignment torque of the vehicle by controlling the driving source based on the steering angle detected by the steering angle detecting portion and the vehicle speed detected by the vehicle speed detecting portion.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: February 22, 2005
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Kaname Aoki, Yoichi Nishizawa, Hiroyuki Kondou
  • Publication number: 20030217885
    Abstract: A self-alignment torque correcting apparatus for a vehicle that compensates for a surplus and a shortage of self-alignment torque of the vehicle. The apparatus includes a driving source that confers a driving force to a steering mechanism of the vehicle; a steering angle detecting portion that detects a steering angle of an operating member; a vehicle speed detecting portion that detects a speed of the vehicle; and a self-alignment torque compensating portion that compensates for a surplus and a shortage of self-alignment torque of the vehicle by controlling the driving source based on the steering angle detected by the steering angle detecting portion and the vehicle speed detected by the vehicle speed detecting portion.
    Type: Application
    Filed: January 28, 2003
    Publication date: November 27, 2003
    Inventors: Kaname Aoki, Yoichi Nishizawa, Hiroyuki Kondou
  • Patent number: 4214893
    Abstract: A method is provided for making a magnetic powder composed principally of cobalt from a mixture solution containing metal salts, such as cobalt salt, and the like, catalysts, such as palladium chloride, and the like, and reducing agents, such as sodium hypophosphite, and the like. Protein, such as albumin or hemoglobin, is added to the mixture solution to promote dispersion of cobalt particles therein. The magnetic powder thus obtained is suitable for use in the production of audio and video tapes.
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: July 29, 1980
    Assignee: Nippon Columbia Kabushikikaisha
    Inventors: Kunihiro Tsuganezawa, Teruo Kobayashi, Shigehisa Harada, Yoichi Nishizawa, Tomoya Kusunose