TREA

Kenji Yamamura

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rolling bearing
    • Patent number 6,592,684
    • Issue date Jul 15, 2003
    • NSK Ltd.
    • Kenji Yamamura
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Rolling member
    • Patent number 6,358,333
    • Issue date Mar 19, 2002
    • NSK Ltd.
    • Susumu Tanaka
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Ball-and-roller bearing and method of manufacturing the same
    • Patent number 6,248,186
    • Issue date Jun 19, 2001
    • NSK Ltd.
    • Kenji Yamamura
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Rolling member
    • Patent number 6,228,184
    • Issue date May 8, 2001
    • NSK Ltd.
    • Susumu Tanaka
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Rolling bearing and rolling device
    • Patent number 6,143,425
    • Issue date Nov 7, 2000
    • NSK Ltd.
    • Susumu Tanaka
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Method of manufacturing rolling bearings
    • Patent number 6,101,719
    • Issue date Aug 15, 2000
    • NSK Ltd.
    • Akihiro Kiuchi
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Rolling member
    • Patent number 6,086,686
    • Issue date Jul 11, 2000
    • NSK Ltd.
    • Susumu Tanaka
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Rolling bearing and rolling device
    • Patent number 5,998,042
    • Issue date Dec 7, 1999
    • NSK Ltd.
    • Susumu Tanaka
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Rolling bearing
    • Patent number 5,873,956
    • Issue date Feb 23, 1999
    • NSK Ltd.
    • Susumu Tanaka
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Rolling bearing with long service life and high wear resistance
    • Patent number 5,800,637
    • Issue date Sep 1, 1998
    • NSK Ltd.
    • Kenji Yamamura
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Rolling bearing
    • Patent number 5,725,688
    • Issue date Mar 10, 1998
    • NSK Ltd.
    • Hiromi Sugi
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Rolling bearings
    • Patent number 5,672,014
    • Issue date Sep 30, 1997
    • NSK Ltd.
    • Shigeru Okita
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Rolling bearing with improved wear resistance
    • Patent number 5,660,647
    • Issue date Aug 26, 1997
    • NSK Ltd.
    • Nobuaki Mitamura
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Rolling bearing for high-speed rotation at high temperatures
    • Patent number 5,560,787
    • Issue date Oct 1, 1996
    • NSK Ltd.
    • Masaaki Takagi
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Ball-and-roller bearing
    • Patent number 5,292,200
    • Issue date Mar 8, 1994
    • NSK Ltd.
    • Yoichi Matsumoto
    • C21 - METALLURGY OF IRON