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Akio Sagawa

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  • Hitachi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Current supply circuit
    • Patent number 4,465,967
    • Issue date Aug 14, 1984
    • Hitachi, Ltd.
    • Michio Tokunaga
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Semiconductor switch
    • Patent number 4,392,069
    • Issue date Jul 5, 1983
    • Hitachi, Ltd.
    • Masayoshi Suzuki
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Semiconductor switch
    • Patent number 4,184,086
    • Issue date Jan 15, 1980
    • Hitachi, Ltd.
    • Akio Sagawa
    • H03 - BASIC ELECTRONIC CIRCUITRY