TREA

Hideo Yoo

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  • Tama, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Color-balance control method
    • Patent number 4,989,043
    • Issue date Jan 29, 1991
    • Ricoh Company, Ltd.
    • Koji Suzuki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Toner density control for multicolor electrophotographic copier
    • Patent number 4,875,079
    • Issue date Oct 17, 1989
    • Ricoh Company, Ltd.
    • Takashi Bisaiji
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Colored image recording device
    • Patent number 4,737,821
    • Issue date Apr 12, 1988
    • Ricoh Corporation
    • Kohji Suzuki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Photoconductor cleaning apparatus
    • Patent number 4,502,780
    • Issue date Mar 5, 1985
    • Ricoh Company, Ltd.
    • Kohji Suzuki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY