TREA

Takashi Sumida

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Patents Grantslast 30 patents

  • Information Patent Grant

    Sealed battery
    • Patent number 8,895,089
    • Issue date Nov 25, 2014
    • Hitachi Maxell, Ltd.
    • Takashi Sumida
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Battery pack
    • Patent number 8,080,333
    • Issue date Dec 20, 2011
    • Hitachi Maxell Engery, Ltd.
    • Osamu Akatsuchi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Recording medium cartridge with a twin-coiled torsional spring-bias...
    • Patent number 6,125,012
    • Issue date Sep 26, 2000
    • Hitachi Maxell, Ltd.
    • Nobutaka Miyazaki
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Single-reel tape cartridge
    • Patent number 5,893,527
    • Issue date Apr 13, 1999
    • Hitachi Maxell, Ltd.
    • Hikaru Mizutani
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Tape cartridge reel lock mechanism
    • Patent number 5,647,550
    • Issue date Jul 15, 1997
    • Hitachi Maxell, Ltd.
    • Takashi Sumida
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Tape cartridge reel lock mechanism
    • Patent number 5,451,007
    • Issue date Sep 19, 1995
    • Hitachi Maxell, LTD
    • Takashi Sumida
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Tape cartridge
    • Patent number 4,757,957
    • Issue date Jul 19, 1988
    • Hitachi Maxell, Ltd.
    • Shunji Nakatamari
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Tap cartridge
    • Patent number 4,660,784
    • Issue date Apr 28, 1987
    • Hitachi Maxell, Ltd.
    • Takashi Sumida
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Tape cartridge with extending reference surfaces
    • Patent number 4,643,304
    • Issue date Feb 17, 1987
    • Hitachi Maxell, Ltd.
    • Takashi Sumida
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Tape cassette
    • Patent number 4,635,879
    • Issue date Jan 13, 1987
    • Hitachi Maxell, Ltd.
    • Takashi Sumida
    • G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

  • Information Patent Application

    BATTERY PACK AND BATTERY PACK MANUFACTURING METHOD
    • Publication number 20100216015
    • Publication date Aug 26, 2010
    • Tatsuya Kamada
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    BATTERY PACK
    • Publication number 20090092860
    • Publication date Apr 9, 2009
    • Hitachi Maxell, Ltd.
    • Hiroshi YAMAMOTO
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    BATTERY PACK
    • Publication number 20090087734
    • Publication date Apr 2, 2009
    • Osamu AKATSUCHI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Battery Pack
    • Publication number 20080102368
    • Publication date May 1, 2008
    • Takashi Sumida
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Battery pack
    • Publication number 20070194753
    • Publication date Aug 23, 2007
    • HITACHI MAXELL, LTD.
    • Takashi Sumida
    • H01 - BASIC ELECTRIC ELEMENTS