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Nobuo Tsukada

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Micro-traveller with ultrasonic motor
    • Patent number 5,254,899
    • Issue date Oct 19, 1993
    • Seiko Instruments Inc.
    • Makoto Suzuki
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Standing-wave type ultrasonic motor and timepiece
    • Patent number 5,079,470
    • Issue date Jan 7, 1992
    • Seiko Instruments Inc.
    • Masao Kasuga
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Method of making a travelling-wave motor
    • Patent number 5,056,201
    • Issue date Oct 15, 1991
    • Seiko Instruments Inc.
    • Masao Kasuga
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Wristwatch with oscillation alarm
    • Patent number 5,043,956
    • Issue date Aug 27, 1991
    • Seiko Instruments Inc.
    • Nobuo Tsukada
    • G04 - HOROLOGY
  • Information Patent Grant

    Ultrasonic motor
    • Patent number 5,025,186
    • Issue date Jun 18, 1991
    • Seiko Instruments Inc.
    • Nobuo Tsukada
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Travelling-wave motor
    • Patent number 5,006,746
    • Issue date Apr 9, 1991
    • Seiko Instruments Inc.
    • Masao Kasuga
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Paper cutting unit of automatic drawing machines
    • Patent number 4,721,058
    • Issue date Jan 26, 1988
    • Seiko Instruments & Electronics Ltd.
    • Mamoru Hayamizu
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Wristwatch
    • Patent number 4,645,356
    • Issue date Feb 24, 1987
    • Seiko Instruments & Electronics Ltd.
    • Eiichi Matsuura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Stem mechanism for a watch
    • Patent number 4,447,163
    • Issue date May 8, 1984
    • Seiko Instruments & Electronics Ltd.
    • Nobuo Tsukada
    • G04 - HOROLOGY
  • Information Patent Grant

    Battery lead plate member for an electronic wrist watch
    • Patent number 4,114,365
    • Issue date Sep 19, 1978
    • Kabushiki Kaisha Daini Seikosha
    • Eiichi Matsuura
    • G04 - HOROLOGY
  • Information Patent Grant

    Bearing for a timepiece train
    • Patent number 4,102,123
    • Issue date Jul 25, 1978
    • Kabushiki Kaisha Daini Seikosha
    • Yoshio Tatsumi
    • G04 - HOROLOGY