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Yoshiaki Hosoi

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  • Saitama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hands-free speech communication apparatus
    • Patent number 6,097,971
    • Issue date Aug 1, 2000
    • NEC Corporation
    • Yoshiaki Hosoi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Noise Canceler
    • Patent number 5,754,665
    • Issue date May 19, 1998
    • NEC Corporation
    • Yoshiaki Hosoi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Switching type echo canceler
    • Patent number 5,604,799
    • Issue date Feb 18, 1997
    • NEC Corporation
    • Motoyoshi Komoda
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE