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Yasushi Miyoshi

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  • Bisai, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Diaphragm for speaker
    • Patent number 4,428,996
    • Issue date Jan 31, 1984
    • Sanyo Electric Co. Ltd.
    • Yasushi Miyoshi
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Diaphragm for speaker and method of producing same
    • Patent number 4,308,094
    • Issue date Dec 29, 1981
    • Sanyo Electric Co., Ltd.
    • Yasushi Miyoshi
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE