Patents by Inventor Takanobu Koguchi

Takanobu Koguchi 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).

  • Choke system for a small four-cycle engine
    Patent number: 6116581
    Abstract: A four-cycle engine has a base plate provided on a side of the engine and having an opening communicated with a carburetor. A choke plate is pivotally mounted on the base plate, and a choke lever is pivotally mounted on the base plate. A transmitting means is provided for transmitting the opposite rotation of the choke lever to the choke plate so as to rotate the choke plate.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: September 12, 2000
    Assignees: Fuji Robin Kabushiki Kaisha, Shin-Daiwa Kogyo Co., Ltd.
    Inventors: Mitsunori Watanabe, Kenji Imafuku, Takanobu Koguchi
  • Decompression device for an engine
    Patent number: 6109230
    Abstract: A cam gear is mounted on a camshaft, and an intake cam and an exhaust cam are formed on the cam gear for operating an intake valve and an exhaust valve of a hand starting four-cycle engine. A decompression device is rotatably mounted in the cam gear. A decompression cam of the decompression device is exposed from the exhaust cam. The decompression device has a weight, and a spring is provided for urging the weight to the cam shaft. Elastic force of the spring is set so that the weight is urged toward the camshaft in hand starting operation of the engine and moved apart from the camshaft by centrifugal force, thereby projecting the decompression cam in the compression stroke of the engine as to open the corresponding valve.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: August 29, 2000
    Assignees: Fuji Robin Kabushiki Kaisha, Shin-Daiwa Kogyo Co., Ltd., Fuji Jukogyo Kabushiki Kaisha
    Inventors: Mitsunori Watanabe, Kenji Imafuku, Takanobu Koguchi