TREA

Isamu Ikeda

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Moving coil type cartridge
    • Patent number 4,233,476
    • Issue date Nov 11, 1980
    • Isamu Ikeda
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Moving iron type cartridge
    • Patent number 4,221,937
    • Issue date Sep 9, 1980
    • Fidelity-Research, Inc.
    • Isamu Ikeda
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE