TREA

Akinori Hasegawa

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  • Himeji, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Speaker and method of manufacturing the speaker
    • Patent number 7,024,015
    • Issue date Apr 4, 2006
    • Matsushita Electric Industrial Co., Ltd.
    • Akinori Hasegawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Microphone
    • Patent number 6,975,736
    • Issue date Dec 13, 2005
    • Matsushita Electric Industrial Co., Ltd.
    • Akinori Hasegawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Sound reproducing system
    • Patent number 6,944,302
    • Issue date Sep 13, 2005
    • Matsushita Electric Industrial Co., Ltd.
    • Masahide Onishi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Speaker
    • Patent number 6,421,449
    • Issue date Jul 16, 2002
    • Matsushita Electric Industrial Co, Ltd.
    • Akinori Hasegawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Sound reproducing device
    • Patent number 6,370,253
    • Issue date Apr 9, 2002
    • Matsushita Electric Industrial Co., Ltd.
    • Masahide Onishi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Audio reproducing apparatus
    • Patent number 6,282,296
    • Issue date Aug 28, 2001
    • Matsushita Electric Industrial Co., Ltd.
    • Fumiyasu Konno
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Sound reproduction apparatus with stable feedback
    • Patent number 6,122,385
    • Issue date Sep 19, 2000
    • Matsushita Electric Industrial Co., Ltd.
    • Fumiyasu Konno
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Starter with a gear reduction mechanism
    • Patent number 4,712,451
    • Issue date Dec 15, 1987
    • Mitsubishi Denki Kabushiki Kaisha
    • Akira Morishita
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Planetary gear starter
    • Patent number 4,680,979
    • Issue date Jul 21, 1987
    • Mitsubishi Denki Kabushiki Kaisha
    • Akira Morishita
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Waterproof device for electric motor
    • Patent number 4,626,724
    • Issue date Dec 2, 1986
    • Mitsubishi Denki Kabushiki Kaisha
    • Akira Morishita
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Microphone
    • Publication number 20040240699
    • Publication date Dec 2, 2004
    • Akinori Hasegawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Sound reproducing system
    • Publication number 20040096067
    • Publication date May 20, 2004
    • Masahide Onoshi
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Speaker and method of manufacturing the speaker
    • Publication number 20040037446
    • Publication date Feb 26, 2004
    • Akinori Hasegawa
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE