TREA

Tsutomu Shishido

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Double converter tuner
    • Patent number 4,726,072
    • Issue date Feb 16, 1988
    • Matsushita Electric Industrial Co., Ltd.
    • Sadahiko Yamashita
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Double superheterodyne tuner
    • Patent number 4,661,998
    • Issue date Apr 28, 1987
    • Matsushita Electric Industrial Co. Ltd.
    • Sadahiko Yamashita
    • H03 - BASIC ELECTRONIC CIRCUITRY