Patents by Inventor Ryota CHAKI

Ryota CHAKI 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).

  • CURVATURE ADJUSTMENT METHOD FOR STATOR BLADE SEGMENT, METHOD FOR MANUFACTURING STATIONARY BODY OF AXIAL-FLOW ROTARY MACHINE, AND CURVATURE ADJUSTMENT JIG FOR STATOR BLADE SEGMENT
    Publication number: 20240167388
    Abstract: A curvature adjustment method is applied to an arc-shaped stator vane segment having a plurality of stator blades disposed side by side on the outer peripheral side of an arc-shaped inner coupling member. In the curvature adjustment method, a jig preparation step, a jig mounting step, and a curvature adjustment step are executed. In the jig preparation step, a curvature adjustment jig and a distance adjustment mechanism are prepared. In the jig mounting step, with the distance adjustment mechanism placed on the inner peripheral side of the inner coupling member, a first end is fixed at a first position of the inner coupling member, and a second end is fixed at a second position of the inner coupling member. In the curvature adjustment step, the distance adjustment mechanism is operated after the jig mounting step to change the distance between the first and second ends of the curvature adjustment jig.
    Type: Application
    Filed: February 16, 2022
    Publication date: May 23, 2024
    Inventors: Shin KATO, Shingo YAMASUE, Yoshio TOMINAGA, Ryota CHAKI, Hirokazu AZUMA
  • Blade removal device and method
    Patent number: 10954791
    Abstract: A blade removal device for removing a blade in a circumferential direction of a blade ring along a groove, the blade being engaged with the groove extending in the circumferential direction on an inner peripheral side of the blade ring, is provided with a towing part for towing the blade, a string member connecting the towing part and the blade, and a first turning part attached to the blade ring so as to be in contact with a portion of the string member between the towing part and the blade to change a direction of a towing force transmitted via the string member.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: March 23, 2021
    Assignee: MITSUBISHI POWER, LTD.
    Inventors: Ryota Chaki, Tadakazu Sakaguchi
  • BLADE REMOVAL DEVICE AND METHOD
    Publication number: 20190003310
    Abstract: A blade removal device for removing a blade in a circumferential direction of a blade ring along a groove, the blade being engaged with the groove extending in the circumferential direction on an inner peripheral side of the blade ring, is provided with a towing part for towing the blade, a string member connecting the towing part and the blade, and a first turning part attached to the blade ring so as to be in contact with a portion of the string member between the towing part and the blade to change a direction of a towing force transmitted via the string member.
    Type: Application
    Filed: January 10, 2017
    Publication date: January 3, 2019
    Inventors: Ryota CHAKI, Tadakazu SAKAGUCHI