Patents by Inventor Masayuki Kayahara

Masayuki Kayahara 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).

  • Patent number: 11828185
    Abstract: A steam turbine includes a rotary shaft, a blade provided on an outer peripheral surface of the rotary shaft, a casing covering the rotary shaft and the blade from an outer peripheral side, a vane provided on an inner peripheral surface of the casing, and a seal device including a seal ring provided between the outer peripheral surface and the vane and a position adjusting portion configured to adjust a position of the seal ring in a radial direction. A seal clearance adjusting method includes a measurement step of measuring a length of the seal ring in the radial direction from a predetermined reference position as a reference length, a preparation step of preparing an unused seal ring, and an adjustment step of adjusting a length of the unused seal ring from the reference position to be the reference length by the position adjusting portion.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: November 28, 2023
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Shunsuke Mizumi, Ketsu Ko, Juichi Kodera, Masayuki Kayahara
  • Publication number: 20220235667
    Abstract: A steam turbine includes a rotary shaft, a blade provided on an outer peripheral surface of the rotary shaft, a casing covering the rotary shaft and the blade from an outer peripheral side, a vane provided on an inner peripheral surface of the casing, and a seal device including a seal ring provided between the outer peripheral surface and the vane and a position adjusting portion configured to adjust a position of the seal ring in a radial direction. A seal clearance adjusting method includes a measurement step of measuring a length of the seal ring in the radial direction from a predetermined reference position as a reference length, a preparation step of preparing an unused seal ring, and an adjustment step of adjusting a length of the unused seal ring from the reference position to be the reference length by the position adjusting portion.
    Type: Application
    Filed: May 28, 2020
    Publication date: July 28, 2022
    Inventors: Shunsuke MIZUMI, Ketsu KO, Juichi KODERA, Masayuki KAYAHARA
  • Patent number: 10428695
    Abstract: In a combined cycle plant, a device for controlling a combined cycle plant, and a method for starting up a combined cycle plant, the time for starting up the combined cycle plant can be shortened by providing: a gas turbine having a compressor, a combustor, and a turbine; a heat recovery steam generator for generating steam by means of the exhaust heat of exhaust gas from the gas turbine. A steam turbine is driven by the steam generated by the heat recovery steam generator; and a control device is configured to set a standby load for the gas turbine during a start-up continuously to change in accordance with a change in metal temperature of the steam turbine.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: October 1, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Masayuki Kayahara, Elvio Rubio, Pablo Ratia, Daniel Carlos Mora
  • Publication number: 20180135468
    Abstract: A combined cycle plant, a device for controlling a combined cycle plant, and a method for starting up a combined cycle plant, wherein the time for starting up the combined cycle plant can be shortened by providing: a gas turbine having a compressor, a combustor, and a turbine; a heat recovery steam generator for generating steam by means of the exhaust heat of exhaust gas from the gas turbine; a steam turbine driven by means of the steam generated by the heat recovery steam generator; and a control device configured to set a standby load for the gas turbine during a start-up continuously to change in accordance with a change in metal temperature of the steam turbine.
    Type: Application
    Filed: May 25, 2016
    Publication date: May 17, 2018
    Inventors: Masayuki KAYAHARA, Elvio RUBIO, Pablo RATIA, Daniel Carlos MORA
  • Patent number: 8189754
    Abstract: An image sharing system includes: a server apparatus; first and second client apparatuses, which are communicably connected with the server apparatus; first and second telephone terminals associated with the first and second client apparatuses respectively; a connection control apparatus for controlling the connection between the first telephone terminal and the second telephone terminal; and a communication terminal including a camera part for photographing a subject, and an image sending part for sending image data representing the image outputted from the camera part, wherein the server apparatus includes a share-image sending part for sending an image represented by image data sent from the communication terminal as a share image to both the first and the second client apparatuses when the first telephone terminal is connected with the second telephone terminal, and both the first and the second client apparatuses include a share-image display part for displaying the share image.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: May 29, 2012
    Assignee: NEC Corporation
    Inventors: Takaaki Kuroda, Tadayuki Oono, Masayuki Kayahara, Takahiro Shiroshima
  • Publication number: 20090296906
    Abstract: An image sharing system includes: a server apparatus; first and second client apparatuses, which are communicably connected with the server apparatus; first and second telephone terminals associated with the first and second client apparatuses respectively; a connection control apparatus for controlling the connection between the first telephone terminal and the second telephone terminal; and a communication terminal including a camera part for photographing a subject, and an image sending part for sending image data representing the image outputted from the camera part, wherein the server apparatus includes a share-image sending part for sending an image represented by image data sent from the communication terminal as a share image to both the first and the second client apparatuses when the first telephone terminal is connected with the second telephone terminal, and both the first and the second client apparatuses include a share-image display part for displaying the share image.
    Type: Application
    Filed: May 13, 2009
    Publication date: December 3, 2009
    Inventors: Takaaki Kuroda, Tadayuki Oono, Masayuki Kayahara, Takahiro Shiroshima