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Hiromi Akiyama

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  • Hiratsuka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Toner composition for electrophotography
    • Patent number 5,573,881
    • Issue date Nov 12, 1996
    • Mitsui Toatsu Chemicals, Inc.
    • Shoji Kawasaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Electrophotographic toner having two ethylene polymers
    • Patent number 5,389,483
    • Issue date Feb 14, 1995
    • Mitsui Toatsu Chemicals, Incorporated
    • Shoji Kawasaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Electrophotographic toner composition
    • Patent number 5,266,434
    • Issue date Nov 30, 1993
    • Mitsui Toatsu Chemicals, Incorporated
    • Nobuhiro Hirayama
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Electrophotographic toner composition
    • Patent number 5,230,978
    • Issue date Jul 27, 1993
    • Mitsui Toatsu Chemicals, Incorporated
    • Shoji Kawasaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY