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Fumikazu Murakami

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Piezoelectric buzzer for wrist watches
    • Patent number 4,526,477
    • Issue date Jul 2, 1985
    • Kabushiki Kaisha Daini Seikosha
    • Fumikazu Murakami
    • B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
  • Information Patent Grant

    Electrodynamic speaker
    • Patent number 4,520,237
    • Issue date May 28, 1985
    • Kabushiki Kaisha Daini Seikosha
    • Fumikazu Murakami
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Small type acoustic device
    • Patent number 4,445,113
    • Issue date Apr 24, 1984
    • Seiko Instruments & Electronics Ltd.
    • Shigeo Mori
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Electronic alarm watch
    • Patent number 4,389,123
    • Issue date Jun 21, 1983
    • Kabushiki Kaisha Daini Seikosha
    • Ichiro Horikoshi
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Electromagnetic transducer
    • Patent number 4,386,244
    • Issue date May 31, 1983
    • Kabushiki Kaisha Daini Seikosha
    • Fumikazu Murakami
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Electro-magnetic type electric acoustic transducer
    • Patent number 4,358,642
    • Issue date Nov 9, 1982
    • Kabushiki Kaisha Daini Seikosha
    • Ichiro Horikoshi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Alarm wristwatch
    • Patent number 4,216,650
    • Issue date Aug 12, 1980
    • Kabushiki Kaisha Daini Seikosha
    • Yoshiaki Hara
    • G04 - HOROLOGY
  • Information Patent Grant

    Alarm electronic timepiece
    • Patent number 4,205,517
    • Issue date Jun 3, 1980
    • Kabushiki Kaisha Daini Seikosha
    • Fumikazu Murakami
    • G04 - HOROLOGY
  • Information Patent Grant

    Alarm watch
    • Patent number 4,197,697
    • Issue date Apr 15, 1980
    • Kabushiki Kaisha Daini Seikosha
    • Shigeo Mori
    • G04 - HOROLOGY
  • Information Patent Grant

    Electronic buzzer
    • Patent number 4,159,472
    • Issue date Jun 26, 1979
    • Kabushiki Kaisha Daini Seikosha
    • Fumikazu Murakami
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Broadband electromagnetic sound source with differently tuned diaph...
    • Patent number 4,147,899
    • Issue date Apr 3, 1979
    • Kabushiki Kaisha Daini Seikosha
    • Shigeo Mori
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE