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Akira Hirato

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  • Tokyo, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Synchronizing system in digital communication line
    • Patent number 5,228,035
    • Issue date Jul 13, 1993
    • Iwatsu Electric Co., Ltd.
    • Akira Hirato
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Key telephone transmission system
    • Patent number 4,583,214
    • Issue date Apr 15, 1986
    • Iwasaki Tsushinki Kabushiki Kaisha
    • Hiroyuki Miyashita
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Hybrid circuit
    • Patent number 4,380,690
    • Issue date Apr 19, 1983
    • Iwasaki Tsushinki Kabushiki Kaisha
    • Teruo Matsufuji
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE