TREA

Tomomi Hamada

Follow

Person

  • Tokyo, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Headphone
    • Patent number 7,738,671
    • Issue date Jun 15, 2010
    • Sony Corporation
    • Tomohiro Ito
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Headphones
    • Patent number 7,558,398
    • Issue date Jul 7, 2009
    • Sony Corporation
    • Tomohiro Ito
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Headphone
    • Patent number 6,744,901
    • Issue date Jun 1, 2004
    • Sony Corporation
    • Tomohiro Ito
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    Headphone
    • Publication number 20080159581
    • Publication date Jul 3, 2008
    • Tomohiro Ito
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Headphone
    • Publication number 20060126881
    • Publication date Jun 15, 2006
    • Tomohiro Ito
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Headphone
    • Publication number 20030091209
    • Publication date May 15, 2003
    • Tomohiro Ito
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE