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Masahiro Aizawa

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  • Osaka, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Image-forming device
    • Patent number 6,715,858
    • Issue date Apr 6, 2004
    • Matsushita Electric Industrial Co., Ltd.
    • Katsutoshi Ogawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Color image forming apparatus
    • Patent number 6,418,296
    • Issue date Jul 9, 2002
    • Matsushita Electric Industrial Co., Ltd.
    • Masahiro Aizawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Image forming device and image forming method
    • Patent number 6,409,314
    • Issue date Jun 25, 2002
    • Matsushita Electric Industrial Co., Ltd.
    • Yoshitaka Kitaoka
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Image forming device
    • Patent number 6,394,587
    • Issue date May 28, 2002
    • Matsushita Electric Industrial Co., Ltd.
    • Masahiro Aizawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Color image forming apparatus
    • Patent number 6,366,756
    • Issue date Apr 2, 2002
    • Matsushita Electric Industrial Co., Ltd.
    • Masahiro Aizawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Image forming apparatus and image forming method
    • Patent number 6,286,936
    • Issue date Sep 11, 2001
    • Array Aktiebolag
    • Akira Kumon
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Color image forming apparatus
    • Patent number 6,185,396
    • Issue date Feb 6, 2001
    • Matsushita Electric Industrial Co., Ltd.
    • Masahiro Aizawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Image forming method and device
    • Patent number 6,144,394
    • Issue date Nov 7, 2000
    • Matsushita Electric Industrial Co., Ltd.
    • Katsutoshi Ogawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Color image forming apparatus with plural color units
    • Patent number 5,809,380
    • Issue date Sep 15, 1998
    • Matsushita Electric Industrial Co., Ltd.
    • Noboru Katakabe
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Electrophotographic apparatus of improved low image density
    • Patent number 5,550,619
    • Issue date Aug 27, 1996
    • Matsushita Electric Industrial Co., Ltd.
    • Hiroshi Komakine
    • B82 - NANO-TECHNOLOGY
  • Information Patent Grant

    Image forming apparatus having a plurality of support surfaces
    • Patent number 5,457,517
    • Issue date Oct 10, 1995
    • Matsushita Electric Industrial Co., Ltd.
    • Noboru Katakabe
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Image forming apparatus and a charging device
    • Patent number 5,434,651
    • Issue date Jul 18, 1995
    • Matsushita Electric Industrial Co., Ltd.
    • Masahiro Aizawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Electrophotographic charging device
    • Patent number 5,381,214
    • Issue date Jan 10, 1995
    • Matsushita Electric Industrial Co., Ltd.
    • Akira Kumon
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents