TREA

Shuji Otawa

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ultrasonic motor
    • Patent number 6,064,139
    • Issue date May 16, 2000
    • Seiko Instruments Inc.
    • Fujio Ozawa
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Electronic timepiece
    • Patent number 4,437,769
    • Issue date Mar 20, 1984
    • Seiko Instruments & Electronics Ltd.
    • Masaharu Shida
    • G04 - HOROLOGY
  • Information Patent Grant

    Analogue alarm electronic timepiece
    • Patent number 4,358,840
    • Issue date Nov 9, 1982
    • Kabushiki Kaisha Daini Seikosha
    • Kenichi Ono
    • G04 - HOROLOGY
  • Information Patent Grant

    Detection device of electronic timepiece
    • Patent number 4,352,172
    • Issue date Sep 28, 1982
    • Kabushiki Kaisha Daini Seikosha
    • Makoto Ueda
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Electronic timepiece
    • Patent number 4,321,520
    • Issue date Mar 23, 1982
    • Kabushiki Kaisha Daini Seikosha
    • Makoto Ueda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Detection device of electronic timepiece
    • Patent number 4,321,521
    • Issue date Mar 23, 1982
    • Kabushiki Kaisha Daini Seikosha
    • Makoto Ueda
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Magnetic field detection device for electronic timepiece
    • Patent number 4,321,519
    • Issue date Mar 23, 1982
    • Kabushiki Kaisha Daini Seikosha
    • Makoto Ueda
    • G01 - MEASURING TESTING