Patents by Inventor Ryoichi SHIMOOKA

Ryoichi SHIMOOKA 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).

  • Backpack work apparatus
    Patent number: 9661965
    Abstract: A backpack work apparatus comprises a back carrier frame; a drive motor mounted on the back carrier frame; a work tool driven by the drive motor; a right and left shoulder straps; a chest strap linking the intermediate points of the right and left shoulder straps; and an emergency release buckle device provided at the point where the chest strap is coupled to the intermediate point of the left shoulder strap, which is divided by the buckle device into two parts, an upper strap and a lower strap. The buckle device normally buckles the chest strap, the upper strap and the lower strap, and is capable of releasing the lower strap and the chest strap from the upper strap via a one part motion in an emergency.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: May 30, 2017
    Assignee: MAKITA CORPORATION
    Inventors: Ko Fukunaga, Yoshinori Shibata, Takuro Konishi, Ryoichi Shimooka
  • BACKPACK WORK APPARATUS
    Publication number: 20150113759
    Abstract: A backpack work apparatus comprises a back carrier frame; a drive motor mounted on the back carrier frame; a work tool driven by the drive motor; a right and left shoulder straps; a chest strap linking the intermediate points of the right and left shoulder straps; and an emergency release buckle device provided at the point where the chest strap is coupled to the intermediate point of the left shoulder strap, which is divided by the buckle device into two parts, an upper strap and a lower strap. The buckle device normally buckles the chest strap, the upper strap and the lower strap, and is capable of releasing the lower strap and the chest strap from the upper strap via a one part motion in an emergency.
    Type: Application
    Filed: October 24, 2014
    Publication date: April 30, 2015
    Applicant: MAKITA CORPORATION
    Inventors: Ko FUKUNAGA, Yoshinori SHIBATA, Takuro KONISHI, Ryoichi SHIMOOKA