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Yasuo Tamai

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  • Odawara, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Magnetic recording medium and the method for preparing the same
    • Patent number 4,965,125
    • Issue date Oct 23, 1990
    • Fuji Photo Film Co., Ltd.
    • Kouichi Masaki
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,963,433
    • Issue date Oct 16, 1990
    • Fuji Photo Film Co., Ltd.
    • Hiroshi Ogawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Method for preparing magnetic coating compositions
    • Patent number 4,952,064
    • Issue date Aug 28, 1990
    • Fuji Photo Film Co., Ltd.
    • Toshio Ono
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,857,388
    • Issue date Aug 15, 1989
    • Fuji Photo Film Co., Ltd.
    • Hiroshi Ogawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,847,147
    • Issue date Jul 11, 1989
    • Fuji Photo Film Co., Ltd.
    • Masashi Aonuma
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,820,581
    • Issue date Apr 11, 1989
    • Fuji Photo Film Co., Ltd.
    • Shinji Saito
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic tape having a leader tape
    • Patent number 4,803,120
    • Issue date Feb 7, 1989
    • Fuji Photo Film Co., Ltd.
    • Hiroshi Ogawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,781,964
    • Issue date Nov 1, 1988
    • Fuji Photo Film Co., Ltd.
    • Chiaki Mizuno
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,780,353
    • Issue date Oct 25, 1988
    • Fuji Photo Film Co., Ltd.
    • Masatoshi Takahashi
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,743,487
    • Issue date May 10, 1988
    • Fuji Photo Film Co., Ltd.
    • Shinji Saito
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,728,558
    • Issue date Mar 1, 1988
    • Fuji Photo Film Co., Ltd.
    • Toshio Ono
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,728,563
    • Issue date Mar 1, 1988
    • Fuji Photo Film Co., Ltd.
    • Shinji Saito
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Process for producing magnetic recording medium
    • Patent number 4,724,162
    • Issue date Feb 9, 1988
    • Fuji Photo Film Co., Ltd.
    • Shinji Saito
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,722,862
    • Issue date Feb 2, 1988
    • Fuji Photo Film Co., Ltd.
    • Hiroshi Ogawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,710,421
    • Issue date Dec 1, 1987
    • Fuji Photo Film Co., Ltd.
    • Toshio Ono
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,690,857
    • Issue date Sep 1, 1987
    • Fuji Photo Film Co., Ltd.
    • Ryuji Shirahata
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,687,710
    • Issue date Aug 18, 1987
    • Fuji Photo Film Co., Ltd.
    • Hiroshi Ogawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic tape having a leader tape
    • Patent number 4,680,225
    • Issue date Jul 14, 1987
    • Fuji Photo Film Co., Ltd.
    • Hiroshi Ogawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,664,981
    • Issue date May 12, 1987
    • Fuji Photo Film Co., Ltd.
    • Hiroshi Ogawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,649,081
    • Issue date Mar 10, 1987
    • Fuji Photo Film Co., Ltd.
    • Hiroshi Ogawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,634,632
    • Issue date Jan 6, 1987
    • Fuji Photo Film Co., Ltd.
    • Hiroshi Ogawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,617,234
    • Issue date Oct 14, 1986
    • Fuji Photo Film Co., Ltd.
    • Masashi Aonuma
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,605,597
    • Issue date Aug 12, 1986
    • Fuji Photo Film Co.,Ltd.
    • Hiroshi Ogawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Process for production of magnetic recording elements
    • Patent number 4,604,296
    • Issue date Aug 5, 1986
    • Fuji Photo Film Co., Ltd.
    • Masashi Aonuma
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Copolymer binder for a magnetic recording medium
    • Patent number 4,568,613
    • Issue date Feb 4, 1986
    • Fuji Photo Film Company Limited
    • Shinji Saito
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Process for preparing magnetic coating composition
    • Patent number 4,511,484
    • Issue date Apr 16, 1985
    • Fuji Photo Film Co.
    • Masashi Anonuma
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,510,203
    • Issue date Apr 9, 1985
    • Fuji Photo Film Co., Ltd.
    • Hiroshi Ogawa
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,500,599
    • Issue date Feb 19, 1985
    • Fuji Photo Film Co., Ltd.
    • Hiroshi Ogawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,492,734
    • Issue date Jan 8, 1985
    • Fuji Photo Film Co., Ltd.
    • Hiroshi Ogawa
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Magnetic recording medium
    • Patent number 4,492,735
    • Issue date Jan 8, 1985
    • Fuji Photo Film Co., Ltd.
    • Hiroshi Ogawa
    • G11 - INFORMATION STORAGE