Patents by Inventor Nobuchika Suezawa

Nobuchika Suezawa 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).

  • SEALING SURFACE PROCESSING MACHINE AND METHOD
    Publication number: 20190084057
    Abstract: A sealing surface processing machine cuts an attachment surface of a seal member in a valve main body. The machine includes a pedestal attached to the valve main body; a main body movably supported on the pedestal; a tool holder configured to hold a tool for processing the attachment surface; a rotating part configured to rotate the tool holder around an axis parallel to a movement direction of a valve body; a first moving part configured to move the tool holder along a first direction along which the valve body moves; a second moving part configured to move the tool holder along a second direction intersecting with the movement direction of the valve body; a first adjustment device configured to adjust a position of the main body in the first direction; and a second adjustment device configured to adjust a position of the main body in the second direction.
    Type: Application
    Filed: March 1, 2017
    Publication date: March 21, 2019
    Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Daichi Sugitani, Genta Terada, Shigenori Taniguchi, Nobuchika Suezawa, Daisuke Sasaki, Kiyoshi Kanemitsu, Tatsuya Iwasawa, Tetsuhide Nakao, Koji Oyama, Naoki Sakamoto, Yu Wakamatsu, Takayoshi Ohara, Masaru Kamada
  • Weld bead cutting device
    Patent number: 9126272
    Abstract: A radial pin 2 has a second end portion 2B protruded from an outer surface of a turbine casing 1 and a first end portion 2A inserted into a through hole 3 formed in the turbine casing 1, and a weld bead 4 is formed on a periphery of the second end portion 2B. A weld bead cutting device 10 has a cutting portion 12 which cuts the weld bead 4 formed on the periphery of the radial pin 2, and a support portion 20 which supports the cutting portion 12 on an end surface 2C of the second end portion 2B of the radial pin 2 such that the cutting portion 12 is movable along the periphery of the radial pin 2.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: September 8, 2015
    Assignee: Mitsubishi Hitachi Power Systems, Ltd.
    Inventors: Daichi Sugitani, Nobuchika Suezawa, Daisuke Sasaki
  • Weld bead cutting device and method of removing radial pin of steam turbine
    Publication number: 20120073132
    Abstract: A radial pin 2 has a second end portion 2B protruded from an outer surface of a turbine casing 1 and a first end portion 2A inserted into a through hole 3 formed in the turbine casing 1, and a weld bead 4 is formed on a periphery of the second end portion 2B. A weld bead cutting device 10 has a cutting portion 12 which cuts the weld bead 4 formed on the periphery of the radial pin 2, and a support portion 20 which supports the cutting portion 12 on an end surface 2C of the second end portion 2B of the radial pin 2 such that the cutting portion 12 is movable along the periphery of the radial pin 2.
    Type: Application
    Filed: September 21, 2011
    Publication date: March 29, 2012
    Inventors: Daichi Sugitani, Nobuchika Suezawa, Daisuke Sasaki