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Masao Yamamoto

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  • Fujisawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rolling Bearing
    • Patent number 7,234,872
    • Issue date Jun 26, 2007
    • NSK, Ltd.
    • Yasunobu Fujita
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Rolling bearing for hard disk drive
    • Patent number 6,880,978
    • Issue date Apr 19, 2005
    • NSK Ltd.
    • Yasunobu Fujita
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Lubricating grease composition
    • Patent number 6,500,788
    • Issue date Dec 31, 2002
    • Kyodo Yushi Co., Ltd.
    • Atushi Shibayama
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Rolling bearing for hard disk drive
    • Patent number 6,340,244
    • Issue date Jan 22, 2002
    • NSK Ltd.
    • Yasunobu Fujita
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Urea thickened carbonate ester grease composition
    • Patent number 6,235,690
    • Issue date May 22, 2001
    • Kyodo Yushi Co., Ltd.
    • Atushi Shibayama
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Rolling bearing unit with rotating speed sensor
    • Patent number 5,942,891
    • Issue date Aug 24, 1999
    • NSK Ltd.
    • Hiroya Miyazaki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Grease composition
    • Patent number 5,714,444
    • Issue date Feb 3, 1998
    • NSK Ltd.
    • Atsushi Yokouchi
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Rolling bearing unit with rotating speed sensor
    • Patent number 5,677,624
    • Issue date Oct 14, 1997
    • NSK Ltd.
    • Hiroya Miyazaki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Rust preventive lubricating oil
    • Patent number 5,656,582
    • Issue date Aug 12, 1997
    • NSK Limited
    • Emiko Shiraishi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Method for producing a cage of the ball bearing
    • Patent number 5,640,769
    • Issue date Jun 24, 1997
    • NSK Ltd.
    • Akira Suzuki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Cage for rolling bearing
    • Patent number 5,575,570
    • Issue date Nov 19, 1996
    • NSK Ltd.
    • Takahiko Uchiyama
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ball bearing and method for producing a cage of the ball bearing
    • Patent number 5,401,105
    • Issue date Mar 28, 1995
    • NSK Ltd.
    • Akira Suzuki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Derivatives of macrolide antibiotics
    • Patent number 4,463,171
    • Issue date Jul 31, 1984
    • Sanraku-Ocean Co., Ltd.
    • Hamao Umezawa
    • C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

  • Information Patent Application

    Rolling bearing
    • Publication number 20030081871
    • Publication date May 1, 2003
    • NSK Ltd
    • Yasunobu Fujita
    • G11 - INFORMATION STORAGE
  • Information Patent Application

    Rolling bearing for hard disk drive
    • Publication number 20020097933
    • Publication date Jul 25, 2002
    • NSK Ltd
    • Yasunobu Fujita
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Lubricating grease composition
    • Publication number 20010002388
    • Publication date May 31, 2001
    • Kyodo Yushi Co., Ltd.
    • Atushi Shibayama
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...