Patents by Inventor Kimio Matsuda

Kimio Matsuda 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).

  • Automatic transmission for a motorcycle
    Patent number: 7575083
    Abstract: In order to reduce the influences of engine heat and vibration on a shift actuator, a shift actuator is disposed apart from the engine and the transmission on a vehicle. In particular a straddle-type vehicle, the vehicle includes a head pipe and a body frame including a main frame that extends rearward from the head pipe. The engine is suspended by the body frame 2 and a transmission is disposed next to the engine. The transmission includes a shift mechanism having a multiple-step speed change gear and a clutch mechanism that interrupts the transmission of rotation at the switching of the speed change gear of the transmission 40. An automatic transmission control unit operates the clutch mechanism and switches the speed change gear of the transmission automatically.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: August 18, 2009
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Makoto Kosugi, Sadamu Iwanaga, Takuji Murayama, Kimio Matsuda
  • Automatic transmission for a motorcycle
    Publication number: 20060094567
    Abstract: In order to reduce the influences of engine heat and vibration on a shift actuator, a shift actuator is disposed apart from the engine and the transmission on a vehicle. In particular a straddle-type vehicle, the vehicle includes a head pipe and a body frame including a main frame that extends rearward from the head pipe. The engine is suspended by the body frame 2 and a transmission is disposed next to the engine. The transmission includes a shift mechanism having a multiple-step speed change gear and a clutch mechanism that interrupts the transmission of rotation at the switching of the speed change gear of the transmission 40. An automatic transmission control unit operates the clutch mechanism and switches the speed change gear of the transmission automatically.
    Type: Application
    Filed: October 21, 2005
    Publication date: May 4, 2006
    Inventors: Makoto Kosugi, Sadamu Iwanaga, Takuji Murayama, Kimio Matsuda