TREA

Koji Hikawa

Follow

Person

  • Tokyo, JP
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Image recording apparatus
    • Patent number 5,774,232
    • Issue date Jun 30, 1998
    • Ricoh Company, Ltd.
    • Yasuhiro Tabata
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Image recording apparatus
    • Patent number 5,717,843
    • Issue date Feb 10, 1998
    • Ricoh Company, Ltd.
    • Yasuhiro Tabata
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Image recording apparatus
    • Patent number 5,602,651
    • Issue date Feb 11, 1997
    • Ricoh Company, Ltd.
    • Yasuhiro Tabata
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Cabinet
    • Patent number D328171
    • Issue date Jul 21, 1992
    • Ricoh Company, Ltd.
    • Koji Hikawa
    • D34 - Material or article handling equipment
  • Information Patent Grant

    Serving cart with refrigerator
    • Patent number D327966
    • Issue date Jul 14, 1992
    • Ricoh Company, Ltd.
    • Koji Hikawa
    • D34 - Material or article handling equipment
  • Information Patent Grant

    Serving cart
    • Patent number D327967
    • Issue date Jul 14, 1992
    • Ricoh Company, Ltd.
    • Koji Hikawa
    • D34 - Material or article handling equipment
  • Information Patent Grant

    Electrostatic copying machine
    • Patent number D318485
    • Issue date Jul 23, 1991
    • Ricoh Company, Ltd.
    • Koji Hikawa
    • D18 - Printing and office machinery
  • Information Patent Grant

    Electrostatic copying machine
    • Patent number D312653
    • Issue date Dec 4, 1990
    • Ricoh Company, Ltd.
    • Youko Nakamura
    • D18 - Printing and office machinery
  • Information Patent Grant

    Laser printer
    • Patent number D308694
    • Issue date Jun 19, 1990
    • Ricoh Company, Ltd.
    • Koji Hikawa
    • D18 - Printing and office machinery
  • Information Patent Grant

    Portable copier
    • Patent number D307298
    • Issue date Apr 17, 1990
    • Ricoh Company, Ltd.
    • Koji Hikawa
    • D18 - Printing and office machinery
  • Information Patent Grant

    Telephone set
    • Patent number D306165
    • Issue date Feb 20, 1990
    • Ricoh Company, Ltd.
    • Koji Hikawa
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    I/O Terminal for data communication
    • Patent number D278435
    • Issue date Apr 16, 1985
    • Ricoh Company, Ltd.
    • Koji Hikawa
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Electrostatic copier
    • Patent number D261770
    • Issue date Nov 10, 1981
    • Ricoh Company, Ltd.
    • Koji Hikawa
    • D16 - Photography and optical equipment