TREA

Tatsuo Shimura

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  • Hitachi, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Lateral-type semiconductor device
    • Patent number 5,083,180
    • Issue date Jan 21, 1992
    • Hitachi Ltd.
    • Masato Miura
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Semiconductor switching circuit
    • Patent number 4,833,587
    • Issue date May 23, 1989
    • Hitachi Ltd. and Hitachi Haramachi Semi-Conductor Ltd.
    • Shigeru Sugayama
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Turn-off control circuit for a gate turn-off thyristor
    • Patent number 4,758,942
    • Issue date Jul 19, 1988
    • Hitachi Ltd.
    • Masayuki Wada
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Semiconductor switch
    • Patent number 4,740,723
    • Issue date Apr 26, 1988
    • Hitachi, Ltd.
    • Shigeru Sugayama
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Capacitive load driving device
    • Patent number 4,733,106
    • Issue date Mar 22, 1988
    • Hitachi, Ltd.
    • Mitsuhiko Okutsu
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Bidirectional MOS linear switch
    • Patent number 4,728,825
    • Issue date Mar 1, 1988
    • Haramachi Semi-Hitachi Ltd.
    • Shigeru Sugayama
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Reference voltage circuit
    • Patent number 4,725,770
    • Issue date Feb 16, 1988
    • Hitachi, Ltd.
    • Mitsuhiko Okutsu
    • G05 - CONTROLLING REGULATING