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Hitoshi Imagawa

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  • Hachioji, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Digital multi-frequency receiver
    • Patent number 4,328,398
    • Issue date May 4, 1982
    • Oki Electric Industry Co., Ltd.
    • Masaharu Kawaguchi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Digital multifrequency signalling receiver
    • Patent number 4,245,325
    • Issue date Jan 13, 1981
    • Nippon Telegraph & Telephone Public Corporation
    • Shiro Kikuchi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE