TREA

Akihiko Tsutai

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Patents Grantslast 30 patents

  • Information Patent Grant

    Permanent magnet
    • Patent number 6,475,302
    • Issue date Nov 5, 2002
    • Kabushiki Kaisha Toshiba
    • Wu Mei
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Yoke type magnetoresistance head and manufacturing method of the same
    • Patent number 6,256,863
    • Issue date Jul 10, 2001
    • Kabushiki Kaisha Toshiba
    • Kazuhiro Saito
    • B82 - NANO-TECHNOLOGY
  • Information Patent Grant

    Magnetic material and bonded magnet
    • Patent number 5,716,462
    • Issue date Feb 10, 1998
    • Kabushiki Kaisha Toshiba
    • Shinya Sakurada
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Magnetic material
    • Patent number 5,658,396
    • Issue date Aug 19, 1997
    • Kabushiki Kaisha Toshiba
    • Shinya Sakurada
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Regenerating material and refrigerator using the same
    • Patent number 5,593,517
    • Issue date Jan 14, 1997
    • Kabushiki Kaisha Toshiba
    • Akiko Saito
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Magnetic material
    • Patent number 5,549,766
    • Issue date Aug 27, 1996
    • Kabushiki Kaisha Toshiba
    • Akihiko Tsutai
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Magnetic material
    • Patent number 5,482,573
    • Issue date Jan 9, 1996
    • Kabushiki Kaisha Toshiba
    • Shinya Sakurada
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Magnetic material
    • Patent number 5,480,495
    • Issue date Jan 2, 1996
    • Kabushiki Kaisha Toshiba
    • Shinya Sakurada
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Magnetic material
    • Patent number 5,456,769
    • Issue date Oct 10, 1995
    • Kabushiki Kaisha Toshiba
    • Shinya Sakurada
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Resin-bonded rare earth-iron-boron magnet
    • Patent number 4,975,213
    • Issue date Dec 4, 1990
    • Kabushiki Kaisha Toshiba
    • Isao Sakai
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Permanent magnet
    • Patent number 4,935,075
    • Issue date Jun 19, 1990
    • Kabushiki Kaisha Toshiba
    • Tetsuhiko Mizoguchi
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Permanent magnet
    • Publication number 20010020495
    • Publication date Sep 13, 2001
    • Wu Mei
    • H01 - BASIC ELECTRIC ELEMENTS