Patents by Inventor Ryusuke KOBAYASHI

Ryusuke KOBAYASHI 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).

  • Work tool
    Patent number: 10632605
    Abstract: The disclosure provides a work tool having an electric motor, a power transmission means that receives motive power from the electric motor and transmits the motive power to a tip tool, a gear housing for accommodating at least a portion of the power transmission means, weights swingably supported on the gear housing, and coil springs that function as an urging means for urging the weights such that the weights are located at an initial neutral position, wherein the weights and the coil springs are provided respectively on the two sides of the gear housing so as to put the power transmission means therebetween, and a rotational support axle is provided that functions as a connecting means for connecting the weights provided on both sides of the gear housing so as to connect the weights such that the weights swing integrally.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: April 28, 2020
    Assignee: KOKI HOLDINGS CO., LTD.
    Inventors: Daijiro Tanabe, Goya Fujimoto, Ryusuke Kobayashi, Kuniaki Kanbe, Shinichirou Satou
  • WORK TOOL
    Publication number: 20170043466
    Abstract: The disclosure provides a work tool having an electric motor, a power transmission means that receives motive power from the electric motor and transmits the motive power to a tip tool, a gear housing for accommodating at least a portion of the power transmission means, weights swingably supported on the gear housing, and coil springs that function as an urging means for urging the weights such that the weights are located at an initial neutral position, wherein the weights and the coil springs are provided respectively on the two sides of the gear housing so as to put the power transmission means therebetween, and a rotational support axle is provided that functions as a connecting means for connecting the weights provided on both sides of the gear housing so as to connect the weights such that the weights swing integrally.
    Type: Application
    Filed: April 30, 2015
    Publication date: February 16, 2017
    Applicant: HITACHI KOKI CO., LTD.
    Inventors: Daijiro TANABE, Goya FUJIMOTO, Ryusuke KOBAYASHI, Kuniaki KANBE, Shinichirou SATOU