TREA

Tsuyoshi Yamashita

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  • Toyama Pref., JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Piezoelectric acoustic device
    • Patent number 6,275,594
    • Issue date Aug 14, 2001
    • Hokuriku Electric Industry Co., Ltd.
    • Masao Senoo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Piezoelectric acoustic device
    • Patent number 6,205,226
    • Issue date Mar 20, 2001
    • Hokuriku Electric Industry Co., Ltd.
    • Masao Senoo
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Piezoelectric acoustic device
    • Patent number 6,091,181
    • Issue date Jul 18, 2000
    • Hokuriku Electric Industry Co., Ltd.
    • Tsuyoshi Yamashita
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE