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Tomoyuki Sakamaki

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  • Ibaraki, JP
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Patents Grantslast 30 patents

  • Information Patent Grant

    Developing device
    • Patent number 11,982,954
    • Issue date May 14, 2024
    • Canon Kabushiki Kaisha
    • Takahiro Suzuki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Image forming apparatus capable of reducing periodic image density...
    • Patent number 11,835,883
    • Issue date Dec 5, 2023
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing device
    • Patent number 11,782,362
    • Issue date Oct 10, 2023
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing apparatus
    • Patent number 11,567,426
    • Issue date Jan 31, 2023
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Image formation apparatus
    • Patent number 11,556,077
    • Issue date Jan 17, 2023
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing device
    • Patent number 11,262,672
    • Issue date Mar 1, 2022
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing apparatus
    • Patent number 11,243,483
    • Issue date Feb 8, 2022
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing apparatus
    • Patent number 11,016,417
    • Issue date May 25, 2021
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing apparatus
    • Patent number 10,852,661
    • Issue date Dec 1, 2020
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing device
    • Patent number 10,768,552
    • Issue date Sep 8, 2020
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing apparatus
    • Patent number 10,725,397
    • Issue date Jul 28, 2020
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Image forming apparatus
    • Patent number 10,401,756
    • Issue date Sep 3, 2019
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing device that reduces the bending of a developer regulatin...
    • Patent number 10,386,743
    • Issue date Aug 20, 2019
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Development device using a dry electrophotographic method
    • Patent number 10,234,793
    • Issue date Mar 19, 2019
    • Canon Kabushiki Kaisha
    • Yuta Okuyama
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing sleeve and developing device
    • Patent number 10,018,943
    • Issue date Jul 10, 2018
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Image forming apparatus having reverse developer feeding
    • Patent number 9,983,511
    • Issue date May 29, 2018
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing apparatus
    • Patent number 9,760,037
    • Issue date Sep 12, 2017
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing apparatus
    • Patent number 9,442,428
    • Issue date Sep 13, 2016
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing device
    • Patent number 9,436,130
    • Issue date Sep 6, 2016
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing device
    • Patent number 9,417,561
    • Issue date Aug 16, 2016
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing device and image forming apparatus
    • Patent number 9,335,666
    • Issue date May 10, 2016
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Image forming apparatus with replenishment toner container which ho...
    • Patent number 9,335,659
    • Issue date May 10, 2016
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing apparatus
    • Patent number 9,329,523
    • Issue date May 3, 2016
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing apparatus
    • Patent number 9,223,252
    • Issue date Dec 29, 2015
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing apparatus
    • Patent number 9,152,078
    • Issue date Oct 6, 2015
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing apparatus
    • Patent number 9,052,634
    • Issue date Jun 9, 2015
    • Canon Kabushiki Kaisha
    • Mitsuhiro Furukawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing apparatus
    • Patent number 8,934,819
    • Issue date Jan 13, 2015
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing apparatus
    • Patent number 8,693,923
    • Issue date Apr 8, 2014
    • Canon Kabushiki Kaisha
    • Takanori Iida
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Developing apparatus
    • Patent number 8,457,534
    • Issue date Jun 4, 2013
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Development apparatus
    • Patent number 8,355,655
    • Issue date Jan 15, 2013
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

  • Information Patent Application

    DEVELOPING DEVICE
    • Publication number 20230400797
    • Publication date Dec 14, 2023
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING APPARATUS
    • Publication number 20230195006
    • Publication date Jun 22, 2023
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    IMAGE FORMING APPARATUS
    • Publication number 20230046441
    • Publication date Feb 16, 2023
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING DEVICE
    • Publication number 20220404740
    • Publication date Dec 22, 2022
    • Canon Kabushiki Kaisha
    • Takahiro Suzuki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING DEVICE
    • Publication number 20220404741
    • Publication date Dec 22, 2022
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    IMAGE FORMATION APPARATUS
    • Publication number 20220260947
    • Publication date Aug 18, 2022
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING APPARATUS
    • Publication number 20220128929
    • Publication date Apr 28, 2022
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING APPARATUS
    • Publication number 20210048762
    • Publication date Feb 18, 2021
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING DEVICE
    • Publication number 20200356027
    • Publication date Nov 12, 2020
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING APPARATUS
    • Publication number 20200192246
    • Publication date Jun 18, 2020
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING APPARATUS
    • Publication number 20190113863
    • Publication date Apr 18, 2019
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING DEVICE
    • Publication number 20180341198
    • Publication date Nov 29, 2018
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    IMAGE FORMING APPARATUS
    • Publication number 20180321612
    • Publication date Nov 8, 2018
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPMENT DEVICE USING A DRY ELECTROPHOTOGRAPHIC METHOD
    • Publication number 20180259881
    • Publication date Sep 13, 2018
    • Canon Kabushiki Kaisha
    • Yuta Okuyama
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING DEVICE
    • Publication number 20180074433
    • Publication date Mar 15, 2018
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING APPARATUS
    • Publication number 20170308001
    • Publication date Oct 26, 2017
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING SLEEVE AND DEVELOPING DEVICE
    • Publication number 20170255132
    • Publication date Sep 7, 2017
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    IMAGE FORMING APPARATUS
    • Publication number 20170115606
    • Publication date Apr 27, 2017
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING DEVICE
    • Publication number 20160085181
    • Publication date Mar 24, 2016
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING APPARATUS
    • Publication number 20160062275
    • Publication date Mar 3, 2016
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING APPARATUS
    • Publication number 20160041505
    • Publication date Feb 11, 2016
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    IMAGE FORMING APPARATUS
    • Publication number 20150293473
    • Publication date Oct 15, 2015
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
    • Publication number 20150268586
    • Publication date Sep 24, 2015
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING DEVICE
    • Publication number 20150168871
    • Publication date Jun 18, 2015
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING APPARATUS
    • Publication number 20150153678
    • Publication date Jun 4, 2015
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING APPARATUS
    • Publication number 20150139699
    • Publication date May 21, 2015
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING APPARATUS
    • Publication number 20150104220
    • Publication date Apr 16, 2015
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING APPARATUS
    • Publication number 20150037073
    • Publication date Feb 5, 2015
    • Canon Kabushiki Kaisha
    • Mitsuhiro Furukawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING APPARATUS
    • Publication number 20130243489
    • Publication date Sep 19, 2013
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    DEVELOPING DEVICE
    • Publication number 20130136506
    • Publication date May 30, 2013
    • Canon Kabushiki Kaisha
    • Tomoyuki Sakamaki
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY