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Ikuo Chatani

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  • Yokohama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Speaker-use protection element and speaker device
    • Patent number 6,928,177
    • Issue date Aug 9, 2005
    • Sony Corporation
    • Ikuo Chatani
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Diaphragm for a capacitance type loudspeaker
    • Patent number 5,590,212
    • Issue date Dec 31, 1996
    • Sony Corporation
    • Masaru Uryu
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Speaker cabinet
    • Patent number 4,173,267
    • Issue date Nov 6, 1979
    • Sony Corporation
    • Ikuo Chatani
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents