TREA

Chitoshi Shiraga

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  • Yagumo, JA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Horn speaker
    • Patent number 4,091,891
    • Issue date May 30, 1978
    • Onkyo Kabushiki Kaisha
    • Masanori Hino
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Horn speaker
    • Patent number 4,040,503
    • Issue date Aug 9, 1977
    • Onkyo Kabushiki Kaisha
    • Masanori Hino
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Horn speaker
    • Patent number 3,972,385
    • Issue date Aug 3, 1976
    • Onkyo Kabushiki Kaisha
    • Masanori Hino
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE