TREA

Yuji Yamashina

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  • Takatsuki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Microphone apparatus
    • Patent number 5,563,954
    • Issue date Oct 8, 1996
    • Matsushita Electric Industrial Co., Ltd.
    • Kiminori Ono
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Pressure gradient type microphone apparatus with acoustic terminals...
    • Patent number 5,526,430
    • Issue date Jun 11, 1996
    • Matsushita Electric Industrial Co., Ltd.
    • Kiminori Ono
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Microphone apparatus
    • Patent number 5,226,087
    • Issue date Jul 6, 1993
    • Matsushita Electric Industrial Co., Ltd.
    • Kiminori Ono
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS