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Masashi Miwa

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Patents Grantslast 30 patents

  • Information Patent Grant

    R-T-B based permanent magnet and motor
    • Patent number 12,020,836
    • Issue date Jun 25, 2024
    • TDK Corporation
    • Koji Miura
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    R-T-B based permanent magnet
    • Patent number 11,742,119
    • Issue date Aug 29, 2023
    • TDK Corporation
    • Masashi Miwa
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    R-T-B based permanent magnet
    • Patent number 11,657,934
    • Issue date May 23, 2023
    • TDK Corporation
    • Yuki Nagamine
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    R-T-B based permanent magnet
    • Patent number 11,636,962
    • Issue date Apr 25, 2023
    • TDK Corporation
    • Masashi Miwa
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    R-T-B based permanent magnet
    • Patent number 11,410,804
    • Issue date Aug 9, 2022
    • TDK Corporation
    • Masashi Miwa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    R-T-B based permanent magnet
    • Patent number 11,152,142
    • Issue date Oct 19, 2021
    • TDK Corporation
    • Yuki Nagamine
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    R-T-B-based sintered magnet
    • Patent number 11,145,444
    • Issue date Oct 12, 2021
    • TDK Corporation
    • Mariko Fujiwara
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    R-T-B based permanent magnet
    • Patent number 10,943,717
    • Issue date Mar 9, 2021
    • TDK Corporation
    • Masashi Miwa
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    R-T-B based permanent magnet
    • Patent number 10,784,028
    • Issue date Sep 22, 2020
    • TDK Corporation
    • Tamotsu Ishiyama
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    R-T-B based sintered magnet
    • Patent number 10,748,686
    • Issue date Aug 18, 2020
    • TDK Corporation
    • Yoshinori Fujikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    R-T-B based sintered magnet
    • Patent number 10,748,685
    • Issue date Aug 18, 2020
    • TDK Corporation
    • Yoshinori Fujikawa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    R-T-B based sintered magnet
    • Patent number 10,734,143
    • Issue date Aug 4, 2020
    • TDK Corporation
    • Yoshinori Fujikawa
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    R-T-B based permanent magnet
    • Patent number 10,672,546
    • Issue date Jun 2, 2020
    • TDK Corporation
    • Masashi Miwa
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    R-T-B based permanent magnet
    • Patent number 10,529,473
    • Issue date Jan 7, 2020
    • TDK Corporation
    • Takurou Iwasa
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    R-T-B based sintered magnet
    • Patent number 10,522,276
    • Issue date Dec 31, 2019
    • TDK Corporation
    • Masashi Miwa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    R-T-B based sintered magnet and motor
    • Patent number 10,410,777
    • Issue date Sep 10, 2019
    • TDK Corporation
    • Isao Kanada
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Rare-earth magnet, method of manufacturing rare-earth magnet, and r...
    • Patent number 10,395,822
    • Issue date Aug 27, 2019
    • TDK Corporation
    • Masashi Miwa
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    R-T-B based sintered magnet and motor
    • Patent number 10,388,441
    • Issue date Aug 20, 2019
    • TDK Corporation
    • Isao Kanada
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    R-T-B based sintered magnet
    • Patent number 10,388,443
    • Issue date Aug 20, 2019
    • TDK Corporation
    • Masashi Miwa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    R-T-B BASED SINTERED MAGNET AND ROTATING MACHINE
    • Patent number 10,256,015
    • Issue date Apr 9, 2019
    • TDK Corporation
    • Masashi Miwa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    R-T-B based sintered magnet and motor
    • Patent number 10,109,403
    • Issue date Oct 23, 2018
    • TDK Corporation
    • Isao Kanada
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    R-T-B based sintered magnet
    • Patent number 10,096,410
    • Issue date Oct 9, 2018
    • TDK Corporation
    • Masashi Miwa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Sintered magnet
    • Patent number 9,997,284
    • Issue date Jun 12, 2018
    • TDK Corporation
    • Masashi Miwa
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Rare earth magnet and method for manufacturing same
    • Patent number 9,903,009
    • Issue date Feb 27, 2018
    • TDK Corporation
    • Masashi Miwa
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    R-T-B based sintered magnet
    • Patent number 9,773,599
    • Issue date Sep 26, 2017
    • TDK Corporation
    • Masashi Miwa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    R-T-B based sintered magnet
    • Patent number 9,514,869
    • Issue date Dec 6, 2016
    • TDK Corporation
    • Masashi Miwa
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Rare earth magnet, method for producing same and method for produci...
    • Patent number 9,005,780
    • Issue date Apr 14, 2015
    • TDK Corporation
    • Takeshi Sakamoto
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Rare earth magnet and its production method
    • Patent number 8,383,252
    • Issue date Feb 26, 2013
    • TDK Corporation
    • Masashi Miwa
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    EL device
    • Patent number 6,803,122
    • Issue date Oct 12, 2004
    • TDK Corporation
    • Yukihiko Shirakawa
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    EL device and making method
    • Patent number 6,677,059
    • Issue date Jan 13, 2004
    • TDK Corporation
    • Yukihiko Shirakawa
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

  • Information Patent Application

    R-T-B BASED PERMANENT MAGNET AND MOTOR
    • Publication number 20210407714
    • Publication date Dec 30, 2021
    • TDK Corporation
    • Koji MIURA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    R-T-B BASED PERMANENT MAGNET
    • Publication number 20210313099
    • Publication date Oct 7, 2021
    • TDK Corporation
    • Masashi MIWA
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Application

    R-T-B BASED PERMANENT MAGNET
    • Publication number 20210304929
    • Publication date Sep 30, 2021
    • TDK Corporation
    • Masashi MIWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    R-T-B BASED PERMANENT MAGNET
    • Publication number 20200303102
    • Publication date Sep 24, 2020
    • TDK Corporation
    • Masashi MIWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    R-T-B BASED PERMANENT MAGNET
    • Publication number 20190304640
    • Publication date Oct 3, 2019
    • TDK Corporation
    • Yuki NAGAMINE
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    R-T-B BASED PERMANENT MAGNET
    • Publication number 20190304638
    • Publication date Oct 3, 2019
    • TDK Corporation
    • Yuki NAGAMINE
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    R-T-B-BASED SINTERED MAGNET
    • Publication number 20190304639
    • Publication date Oct 3, 2019
    • TDK Corporation
    • Mariko FUJIWARA
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Application

    R-T-B-BASED SINTERED MAGNET
    • Publication number 20190295754
    • Publication date Sep 26, 2019
    • TDK Corporation
    • Hikaru KUDO
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    R-T-B BASED SINTERED MAGNET
    • Publication number 20180301257
    • Publication date Oct 18, 2018
    • TDK Corporation
    • Yoshinori FUJIKAWA
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    R-T-B BASED SINTERED MAGNET
    • Publication number 20180301256
    • Publication date Oct 18, 2018
    • TDK Corporation
    • Yoshinori FUJIKAWA
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    R-T-B BASED SINTERED MAGNET
    • Publication number 20180286545
    • Publication date Oct 4, 2018
    • TDK Corporation
    • Yoshinori FUJIKAWA
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    R-T-B BASED PERMANENT MAGNET
    • Publication number 20170278602
    • Publication date Sep 28, 2017
    • TDK Corporation
    • Takurou IWASA
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    R-T-B BASED PERMANENT MAGNET
    • Publication number 20170250013
    • Publication date Aug 31, 2017
    • TDK Corporation
    • Tamotsu ISHIYAMA
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    R-T-B BASED PERMANENT MAGNET
    • Publication number 20170250015
    • Publication date Aug 31, 2017
    • TDK Corporation
    • Masashi MIWA
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    R-T-B BASED PERMANENT MAGNET
    • Publication number 20170250016
    • Publication date Aug 31, 2017
    • TDK Corporation
    • Masashi MIWA
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    R-T-B BASED SINTERED MAGNET
    • Publication number 20160225501
    • Publication date Aug 4, 2016
    • TDK Corporation
    • Masashi MIWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    R-T-B BASED SINTERED MAGNET
    • Publication number 20160225502
    • Publication date Aug 4, 2016
    • TDK Corporation
    • Masashi MIWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    R-T-B BASED SINTERED MAGNET AND MOTOR
    • Publication number 20160196904
    • Publication date Jul 7, 2016
    • TDK Corporation
    • Isao KANADA
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    R-T-B BASED SINTERED MAGNET AND MOTOR
    • Publication number 20160180993
    • Publication date Jun 23, 2016
    • TDK Corporation
    • Isao KANADA
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    R-T-B BASED SINTERED MAGNET AND MOTOR
    • Publication number 20160163434
    • Publication date Jun 9, 2016
    • TDK Corporation
    • Isao KANADA
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    R-T-B BASED SINTERED MAGNET AND ROTATING MACHINE
    • Publication number 20160163435
    • Publication date Jun 9, 2016
    • TDK Corporation
    • Masashi MIWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    R-T-B BASED SINTERED MAGNET
    • Publication number 20160086701
    • Publication date Mar 24, 2016
    • TDK Corporation
    • Masashi MIWA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    R-T-B BASED SINTERED MAGNET
    • Publication number 20150235750
    • Publication date Aug 20, 2015
    • TDK Corporation
    • Masashi Miwa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    SINTERED MAGNET
    • Publication number 20150170810
    • Publication date Jun 18, 2015
    • TDK Corporation
    • Masashi Miwa
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    R-T-B BASED SINTERED MAGNET
    • Publication number 20150155083
    • Publication date Jun 4, 2015
    • TDK Corporation
    • Masashi Miwa
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    RARE EARTH MAGNET AND METHOD FOR MANUFACTURING SAME
    • Publication number 20120112862
    • Publication date May 10, 2012
    • TDK Corporation
    • Masashi MIWA
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    RARE-EARTH MAGNET, METHOD OF MANUFACTURING RARE-EARTH MAGNET, AND R...
    • Publication number 20110234348
    • Publication date Sep 29, 2011
    • TDK Corporation
    • Masashi MIWA
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    RARE EARTH MAGNET AND ITS PRODUCTION METHOD
    • Publication number 20090087672
    • Publication date Apr 2, 2009
    • TDK Corporation
    • Masashi MIWA
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Rare Earth Magnet, Method for Producing Same and Method for Produci...
    • Publication number 20080202642
    • Publication date Aug 28, 2008
    • TDK CORPORATION
    • Takeshi Sakamoto
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    Rare Earth Magnet and Method for Manufacturing Same
    • Publication number 20080050581
    • Publication date Feb 28, 2008
    • TDK Corporation
    • Masashi Miwa
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...