Patents by Inventor Naoki MUROTA

Naoki MUROTA 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).

  • ELECTRIC VEHICLE
    Publication number: 20150088353
    Abstract: In an electric vehicle, a torque to rotate a drive wheel is generated by a motor. An accelerator grip is operated by a rider in order to adjust the torque of the motor. An operation amount of the accelerator grip is detected by an accelerator sensor. Further, a brake lever is operated by the rider in order to brake a main body. A controller is programmed to control the motor such that the torque of the motor gradually decreases when the brake lever is switched from a non-operation state to an operation state with the torque being generated by the motor.
    Type: Application
    Filed: August 20, 2014
    Publication date: March 26, 2015
    Inventors: Atsushi MURAKAMI, Naoki MUROTA, Hirokazu FUJITA, Makoto TADA, Toshiyuki WADA
  • Vehicle
    Patent number: 8725376
    Abstract: A vehicle can be operated in a first drive mode in which a front differential is set to a non-driven state and a rear differential is set to a differential state, a second drive mode in which the front differential is set to a non-driven state and the rear differential is set to a differential locked state, a third drive mode in which the front differential is set to a differential state and the rear differential is set to a differential locked state, and a fourth drive mode in which the front differential is set to a differential locked state and the rear differential is set to a differential locked state. Transition is allowed only between adjacent drive modes.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: May 13, 2014
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Naoki Murota, Hiroyuki Fujimoto, Hiroshi Kawamura
  • VEHICLE
    Publication number: 20100262347
    Abstract: A vehicle can be operated in a first drive mode in which a front differential is set to a non-driven state and a rear differential is set to a differential state, a second drive mode in which the front differential is set to a non-driven state and the rear differential is set to a differential locked state, a third drive mode in which the front differential is set to a differential state and the rear differential is set to a differential locked state, and a fourth drive mode in which the front differential is set to a differential locked state and the rear differential is set to a differential locked state. Transition is allowed only between adjacent drive modes.
    Type: Application
    Filed: April 12, 2010
    Publication date: October 14, 2010
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Naoki MUROTA, Hiroyuki FUJIMOTO, Hiroshi KAWAMURA