TREA

Tamotsu Tsukaguchi

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  • Kanagawa, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Computer housing
    • Patent number D394246
    • Issue date May 12, 1998
    • Hitachi, Ltd.
    • Takashi Yamamoto
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Computer
    • Patent number D389464
    • Issue date Jan 20, 1998
    • Hitachi, Ltd.
    • Toshiyuki Utsuki
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Method of actively controlling noise, and apparatus thereof
    • Patent number 5,689,572
    • Issue date Nov 18, 1997
    • Hitachi, Ltd.
    • Katsuo Ohki
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Grant

    Electronic apparatus
    • Patent number 5,592,363
    • Issue date Jan 7, 1997
    • Hitachi, Ltd.
    • Takayuki Atarashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Computer
    • Patent number D371347
    • Issue date Jul 2, 1996
    • Hitachi, Ltd.
    • Toshiyuki Utsuki
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Cooling apparatus for electronic equipment
    • Patent number 5,504,651
    • Issue date Apr 2, 1996
    • Hitachi Chemical Co., Ltd.
    • Takayuki Atarashi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Computer
    • Patent number D361060
    • Issue date Aug 8, 1995
    • Hitachi, Ltd.
    • Kennta Kumagaya
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Ventilation guide for electronic equipment
    • Patent number 5,267,121
    • Issue date Nov 30, 1993
    • Hitachi, Ltd.
    • Masahiro Uchida
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Central processor for an electronic computer
    • Patent number D313980
    • Issue date Jan 22, 1991
    • Hitachi, Ltd.
    • Minoru Ikeda
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Central processor unit
    • Patent number D307420
    • Issue date Apr 24, 1990
    • Hitachi, Ltd.
    • Koushiro Adachi
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Power supply structure and system for mounting the same
    • Patent number 4,731,703
    • Issue date Mar 15, 1988
    • Hitachi Ltd.
    • Tamotsu Tsukaguchi
    • H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Central processor unit
    • Patent number D278712
    • Issue date May 7, 1985
    • Hitachi, Ltd.
    • Koushirou Adachi
    • D14 - Recording, communication, or information retrieval equipment