TREA

Takashi Ohyaba

Follow

Person

  • Tokorozawa, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Internal magnetic circuit and loudspeaker system incorporating the...
    • Patent number 7,120,271
    • Issue date Oct 10, 2006
    • Pioneer Corporation
    • Hiroyuki Kobayashi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Acoustic device
    • Patent number 6,792,122
    • Issue date Sep 14, 2004
    • Pioneer Corporation
    • Haruo Okada
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Damper for a speaker apparatus
    • Patent number 6,144,753
    • Issue date Nov 7, 2000
    • Pioneer Electronic Corporation
    • Takashi Ohyaba
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Surroundless loudspeaker
    • Patent number 5,848,173
    • Issue date Dec 8, 1998
    • Pioneer Electronic Corporation
    • Yoko Sato
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker system
    • Patent number 5,590,208
    • Issue date Dec 31, 1996
    • Pioneer Electronic Corporation
    • Shinji Koyano
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker system
    • Patent number 4,504,704
    • Issue date Mar 12, 1985
    • Pioneer Electronic Corporation
    • Takashi Ohyaba
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Ribbon-type loudspeaker
    • Patent number 4,413,160
    • Issue date Nov 1, 1983
    • Pioneer Electronic Corporation
    • Takashi Ohyaba
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents