Patents by Inventor Masanari Wakamatsu

Masanari Wakamatsu 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).

  • Power transfer apparatus of four-wheel drive vehicle and device for controlling torque
    Patent number: 6910983
    Abstract: A power transfer apparatus 1 of a four-wheel drive vehicle includes, a clutch, an inversion detector, and controller. The clutch generates an engagement force that effects a driving force output from an engine to wheels of the vehicle via a transmission. The transmission includes the inversion detector 23, 27 for detecting inversion or non-inversion of a gear-shifting direction of the transmission 13. The controller 23 subjects the electromagnet to energization control such that torque to be transmitted by the clutch is decreased to a target value in accordance with an inversion signal pertaining to said gear-shifting direction detected by said inversion detector 23, 27.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: June 28, 2005
    Assignee: Tochigi Fuji Sangyo Kabushiki Kaisha
    Inventor: Masanari Wakamatsu
  • Power transfer apparatus of four-wheel drive vehicle and device for controlling torque
    Publication number: 20040116247
    Abstract: A power transfer apparatus 1 of a four-wheel drive vehicle includes, a clutch, an inversion detector, and controller. The clutch generate an engagement force that effects a driving force output from an engine to wheels of the vehicle via a transmission. The transmission includes the inversion detector 23, 27 for detecting inversion or non-inversion of a gear-shifting direction of the transmission 13. The controller 23 subjects the electromagnet to energization control such that torque to be transmitted by the clutch is decreased to a target value in accordance with an inversion signal pertaining to said gear-shifting direction detected by said inversion detector 23, 27.
    Type: Application
    Filed: October 8, 2003
    Publication date: June 17, 2004
    Inventor: Masanari Wakamatsu