TREA

Keitaro Tsuboki

Follow

Person

  • Tokyo, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Electronic still camera
    • Patent number D459378
    • Issue date Jun 25, 2002
    • Sony Corporation
    • Satoshi Masamitsu
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Earphone
    • Patent number D457515
    • Issue date May 21, 2002
    • Sony Corporation
    • Satoshi Masamitsu
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Audio player
    • Patent number D450713
    • Issue date Nov 20, 2001
    • Sony Corporation
    • Satoshi Masamitsu
    • D14 - Recording, communication, or information retrieval equipment