Patents by Inventor Daiki HIROKAWA

Daiki HIROKAWA 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).

  • Turbine casing, gas turbine, and aligning method
    Patent number: 11661864
    Abstract: A turbine casing divided in an axial direction into a first casing and a second casing coupled to each other by flanges of the first casing and the second casing. The first casing and the second casing are divided into two parts as viewed from the axial direction, the two parts being an upper half casing and a lower half casing. The turbine casing having three or more sets of a first radial reference surface and a second radial reference surface in a circumferential direction, the first radial reference surface being disposed in a flange peripheral portion of the first casing, and the second radial reference surface being disposed in a flange peripheral portion of the second casing. Each first radial reference surface is located at an equal distance from a turbine central axis. Each second radial reference surface is located at an equal distance from the turbine central axis.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: May 30, 2023
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Toru Shinkawa, Shosaku Hiwatashi, Daiki Hirokawa, Yasuyuki Watanabe
  • TURBINE CASING, GAS TURBINE, AND ALIGNING METHOD
    Publication number: 20230066823
    Abstract: A turbine casing divided in an axial direction into a first casing and a second casing coupled to each other by flanges of the first casing and the second casing. The first casing and the second casing are divided into two parts as viewed from the axial direction, the two parts being an upper half casing and a lower half casing. The turbine casing having three or more sets of a first radial reference surface and a second radial reference surface in a circumferential direction, the first radial reference surface being disposed in a flange peripheral portion of the first casing, and the second radial reference surface being disposed in a flange peripheral portion of the second casing. Each first radial reference surface is located at an equal distance from a turbine central axis. Each second radial reference surface is located at an equal distance from the turbine central axis.
    Type: Application
    Filed: May 27, 2022
    Publication date: March 2, 2023
    Inventors: Toru SHINKAWA, Shosaku HIWATASHI, Daiki HIROKAWA, Yasuyuki WATANABE