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Tetsuya Kuwano

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Patents Grantslast 30 patents

  • Information Patent Grant

    End wall closure apparatus
    • Patent number 8,631,961
    • Issue date Jan 21, 2014
    • Hitachi, Ltd.
    • Tomohiro Naruse
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Laser narrow groove welding apparatus and welding method
    • Patent number 8,481,885
    • Issue date Jul 9, 2013
    • Hitachi Plant Technologies, Ltd.
    • Takeshi Tsukamoto
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Centrifugal compressor
    • Patent number 8,475,131
    • Issue date Jul 2, 2013
    • Hitachi Plant Technologies, Ltd.
    • Takanori Shibata
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Welding method and welding apparatus for an impeller
    • Patent number 8,426,766
    • Issue date Apr 23, 2013
    • Hitachi Plant Technologies, Ltd.
    • Takeshi Tsukamoto
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Welding slot sealing structure and welding method
    • Patent number 8,408,873
    • Issue date Apr 2, 2013
    • Hitachi Plant Technologies, Ltd.
    • Masaaki Iwasa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Centrifugal compressor having vaneless diffuser and vaneless diffus...
    • Patent number 8,313,290
    • Issue date Nov 20, 2012
    • Hitachi Plant Technologies, Ltd.
    • Masanori Tanaka
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Centrifugal compressor, impeller and operating method of the same
    • Patent number 8,308,420
    • Issue date Nov 13, 2012
    • Hitachi Plant Technologies, Ltd.
    • Manabu Yagi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multistage centrifugal compressor
    • Patent number 8,287,236
    • Issue date Oct 16, 2012
    • Hitachi Plant Technologies, Ltd.
    • Hideo Nishida
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multistage centrifugal compressor
    • Patent number 8,267,644
    • Issue date Sep 18, 2012
    • Hitachi Plant Technologies, Ltd.
    • Hideo Nishida
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    LASER NARROW GROOVE WELDING APPARATUS AND WELDING METHOD
    • Publication number 20100326969
    • Publication date Dec 30, 2010
    • Hitachi Plant Technologies, Ltd.
    • Takeshi TSUKAMOTO
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    END WALL CLOSURE APPARATUS
    • Publication number 20100270308
    • Publication date Oct 28, 2010
    • Hitachi Plant Technologies, Ltd.
    • Tomohiro NARUSE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CENTRIFUGAL COMPRESSOR
    • Publication number 20100129224
    • Publication date May 27, 2010
    • Hitachi Plant Technologies, Ltd.
    • Takanori SHIBATA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CENTRIFUGAL COMPRESSOR
    • Publication number 20100034646
    • Publication date Feb 11, 2010
    • Hitachi Plant Technologies, Ltd.
    • Yohei MAGARA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MULTISTAGE CENTRIFUGAL COMPRESSOR
    • Publication number 20100028141
    • Publication date Feb 4, 2010
    • Hitachi Plant Technologies, Ltd.
    • Hideo NISHIDA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CENTRIFUGAL COMPRESSOR HAVING VANELESS DIFFUSER AND VANELESS DIFFUS...
    • Publication number 20090317248
    • Publication date Dec 24, 2009
    • Hitachi Plant Technologies, Ltd.
    • Masanori Tanaka
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    WELDING METHOD AND WELDING APPARATUS FOR AN IMPELLER
    • Publication number 20090095719
    • Publication date Apr 16, 2009
    • Takeshi Tsukamoto
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    CENTRIFUGAL COMPRESSOR, IMPELLER AND OPERATING METHOD OF THE SAME
    • Publication number 20090035122
    • Publication date Feb 5, 2009
    • Manabu YAGI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Multistage Centrifugal Compressor
    • Publication number 20080279680
    • Publication date Nov 13, 2008
    • Hitachi Plant Technologies, Ltd.
    • Hideo NISHIDA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    WELDING SLOT SEALING STRUCTURE AND WELDING METHOD
    • Publication number 20080237195
    • Publication date Oct 2, 2008
    • Masaaki Iwasa
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR