TREA

Hiroharu Oyama

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Patents Grantslast 30 patents

  • Information Patent Grant

    Seal device for turbine, turbine, and thin plate for seal device
    • Patent number 10,731,499
    • Issue date Aug 4, 2020
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Azumi Yoshida
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Step seal, seal structure, turbo machine, and method for manufactur...
    • Patent number 10,718,434
    • Issue date Jul 21, 2020
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Toyoharu Nishikawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Seal device for turbine, turbine, and thin plate for seal device
    • Patent number 10,662,796
    • Issue date May 26, 2020
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Azumi Yoshida
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Method of welding erosion resistance metallic material and turbine...
    • Patent number 10,662,785
    • Issue date May 26, 2020
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Yasuyuki Fujiya
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Sealing structure and rotary machine
    • Patent number 10,557,363
    • Issue date Feb 11, 2020
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Kazuyuki Matsumoto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Seal structure and rotary machine
    • Patent number 10,385,714
    • Issue date Aug 20, 2019
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Yoshihiro Kuwamura
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Method for heat treatment of stainless member, and method for produ...
    • Patent number 10,370,734
    • Issue date Aug 6, 2019
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Kohei Hatano
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Turbine
    • Patent number 10,316,675
    • Issue date Jun 11, 2019
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Yoshihiro Kuwamura
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Turbine
    • Patent number 10,316,680
    • Issue date Jun 11, 2019
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Yoshihiro Kuwamura
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Seal structure and rotating machine
    • Patent number 10,316,679
    • Issue date Jun 11, 2019
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Toyoharu Nishikawa
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Turbine
    • Patent number 10,227,885
    • Issue date Mar 12, 2019
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Yoshihiro Kuwamura
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Shaft sealing mechanism
    • Patent number 10,196,987
    • Issue date Feb 5, 2019
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Kohei Ozaki
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Shaft sealing mechanism
    • Patent number 10,190,433
    • Issue date Jan 29, 2019
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Kohei Ozaki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Shaft seal mechanism
    • Patent number 10,174,844
    • Issue date Jan 8, 2019
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Hidekazu Uehara
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Turbine blade manufacturing method
    • Patent number 10,105,752
    • Issue date Oct 23, 2018
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Kohei Hatano
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Steam turbine vane manufacturing method
    • Patent number 10,107,113
    • Issue date Oct 23, 2018
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Hidetaka Haraguchi
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Turbine
    • Patent number 10,006,292
    • Issue date Jun 26, 2018
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Yoshihiro Kuwamura
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Method for manufacturing turbine rotor blade
    • Patent number 9,919,392
    • Issue date Mar 20, 2018
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Kohei Hatano
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Rotating machine
    • Patent number 9,896,952
    • Issue date Feb 20, 2018
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Kazuyuki Matsumoto
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotary machine
    • Patent number 9,879,786
    • Issue date Jan 30, 2018
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Yoshihiro Kuwamura
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Turbine
    • Patent number 9,726,027
    • Issue date Aug 8, 2017
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Yoshihiro Kuwamura
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Shaft seal device and rotary machine
    • Patent number 9,677,669
    • Issue date Jun 13, 2017
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Hidekazu Uehara
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Turbine seal fin leakage flow rate control
    • Patent number 9,593,587
    • Issue date Mar 14, 2017
    • Mitsubishi Heavy Industries, Ltd.
    • Kazuyuki Matsumoto
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Turbine vane of steam turbine and steam turbine
    • Patent number 9,488,066
    • Issue date Nov 8, 2016
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Hiroyuki Yamashita
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Steam turbine
    • Patent number 9,429,022
    • Issue date Aug 30, 2016
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Kazuyuki Matsumoto
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Turbine
    • Patent number 9,410,432
    • Issue date Aug 9, 2016
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Kazuyuki Matsumoto
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Turbine
    • Patent number 9,388,701
    • Issue date Jul 12, 2016
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Yoshihiro Kuwamura
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Turbine
    • Patent number 9,353,640
    • Issue date May 31, 2016
    • Mitsubishi Hitachi Power Systems, Ltd.
    • Yoshihiro Kuwamura
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Shaft sealing apparatus and rotating machine equipped therewith
    • Patent number 9,091,348
    • Issue date Jul 28, 2015
    • Mitsubishi Heavy Industries, Ltd.
    • Tanehiro Shinohara
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    SEAL FIN, SEAL STRUCTURE, AND TURBO MACHINE
    • Publication number 20180372158
    • Publication date Dec 27, 2018
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Toyoharu Nishikawa
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    STEP SEAL, SEAL STRUCTURE, TURBO MACHINE, AND METHOD FOR MANUFACTUR...
    • Publication number 20180355979
    • Publication date Dec 13, 2018
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Toyoharu Nishikawa
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    SEAL FIN, SEAL STRUCTURE, TURBO MACHINE, AND METHOD FOR MANUFACTURI...
    • Publication number 20180355743
    • Publication date Dec 13, 2018
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Toyoharu Nishikawa
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    SEALING DEVICE AND ROTARY MACHINE
    • Publication number 20180163557
    • Publication date Jun 14, 2018
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Yoshihiro Kuwamura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SEAL DEVICE FOR TURBINE, TURBINE, AND THIN PLATE FOR SEAL DEVICE
    • Publication number 20180045065
    • Publication date Feb 15, 2018
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Azumi YOSHIDA
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    SEAL DEVICE FOR TURBINE, TURBINE, AND THIN PLATE FOR SEAL DEVICE
    • Publication number 20180030845
    • Publication date Feb 1, 2018
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Azumi YOSHIDA
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    TURBINE
    • Publication number 20180016928
    • Publication date Jan 18, 2018
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Yoshihiro Kuwamura
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    TURBINE
    • Publication number 20170370237
    • Publication date Dec 28, 2017
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Yoshihiro Kuwamura
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    SHAFT SEALING MECHANISM
    • Publication number 20170350267
    • Publication date Dec 7, 2017
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Kohei OZAKI
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    SHAFT SEAL MECHANISM
    • Publication number 20170350510
    • Publication date Dec 7, 2017
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Hidekazu UEHARA
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    SHAFT SEALING MECHANISM
    • Publication number 20170342909
    • Publication date Nov 30, 2017
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Kohei OZAKI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SEAL STRUCTURE AND ROTARY MACHINE
    • Publication number 20170022838
    • Publication date Jan 26, 2017
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Yoshihiro KUWAMURA
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    SEAL STRUCTURE AND ROTATING MACHINE
    • Publication number 20160341058
    • Publication date Nov 24, 2016
    • Toyoharu NISHIKAWA
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    TURBINE BLADE MANUFACTURING METHOD
    • Publication number 20160339507
    • Publication date Nov 24, 2016
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Kohei HATANO
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    SEALING STRUCTURE AND ROTARY MACHINE
    • Publication number 20160333714
    • Publication date Nov 17, 2016
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Kazuyuki MATSUMOTO
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    METHOD FOR HEAT TREATMENT OF STAINLESS MEMBER, AND METHOD FOR PRODU...
    • Publication number 20160237517
    • Publication date Aug 18, 2016
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Kohei HATANO
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    METHOD FOR MANUFACTURING TURBINE ROTOR BLADE
    • Publication number 20160184940
    • Publication date Jun 30, 2016
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Kohei HATANO
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    SHAFT SEAL DEVICE AND ROTARY MACHINE
    • Publication number 20160010751
    • Publication date Jan 14, 2016
    • Hidekazu UEHARA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    STEAM TURBINE VANE MANUFACTURING METHOD
    • Publication number 20150377043
    • Publication date Dec 31, 2015
    • MISUBISHI HITACHI POWER SYSTEMS, LTD.
    • Hidetaka HARAGUCHI
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    ROTATING MACHINE
    • Publication number 20150300190
    • Publication date Oct 22, 2015
    • Kazuyuki MATSUMOTO
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    METHOD OF WELDING EROSION RESISTANCE METALLIC MATERIAL AND TURBINE...
    • Publication number 20150233257
    • Publication date Aug 20, 2015
    • Mitsubishi Heavy Industries, Ltd.
    • Yasuyuki Fujiya
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    ROTARY MACHINE
    • Publication number 20150184750
    • Publication date Jul 2, 2015
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Yoshihiro Kuwamura
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    METHOD FOR SETTING AGING CONDITIONS AND METHOD FOR PRODUCING TURBIN...
    • Publication number 20150136280
    • Publication date May 21, 2015
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Yuichi Hirakawa
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    TURBINE
    • Publication number 20140314579
    • Publication date Oct 23, 2014
    • MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    • Yoshihiro Kuwamura
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    TURBINE
    • Publication number 20140154061
    • Publication date Jun 5, 2014
    • Mitsubishi Heavy Industries, Ltd.
    • Yoshihiro Kuwamura
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    TURBINE
    • Publication number 20130272855
    • Publication date Oct 17, 2013
    • Yoshihiro Kuwamura
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    TURBINE
    • Publication number 20130251534
    • Publication date Sep 26, 2013
    • Mitsubishi Heavy Industries, Ltd.
    • Kazuyuki MATSUMOTO
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    TURBINE VANE OF STEAM TURBINE AND STEAM TURBINE
    • Publication number 20130243587
    • Publication date Sep 19, 2013
    • Hiroyuki Yamashita
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    SHAFT SEALING APPARATUS AND ROTATING MACHINE EQUIPPED THEREWITH
    • Publication number 20130181412
    • Publication date Jul 18, 2013
    • Mitsubishi Heavy Industries, Ltd.
    • Tanehiro SHINOHARA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    TURBINE
    • Publication number 20130149124
    • Publication date Jun 13, 2013
    • Yoshihiro Kuwamura
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...