Patents by Inventor Kunio Kajiwara

Kunio Kajiwara 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).

  • Fuel control system for injected engine
    Patent number: 5146899
    Abstract: A fuel injection control system for a two cycle crankcase compression internal combustion engine that employs two sensors for sensing engine load. One of the sensor, a throttle valve position sensor, is more sensitive at low speed and low load conditions and the other of the sensor, a crankcase pressure sensor, is more sensitive under high speed and high load conditions. The output of the fuel injectors is controlled by a map ratio showing the input signals from the two sensors in response to their areas of greatest selectivity.
    Type: Grant
    Filed: September 25, 1991
    Date of Patent: September 15, 1992
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Takeshi Tanaka, Kunio Kajiwara