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Hiroshi NAKAI

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Patents Grantslast 30 patents

  • Information Patent Grant

    Image forming apparatus
    • Patent number 12,045,000
    • Issue date Jul 23, 2024
    • Ricoh Company, Ltd.
    • Kazuhiko Watanabe
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Handheld printing apparatus
    • Patent number 11,987,063
    • Issue date May 21, 2024
    • Canon Kabushiki Kaisha
    • Hiroshi Nakai
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Handheld printing apparatus
    • Patent number 11,958,303
    • Issue date Apr 16, 2024
    • Canon Kabushiki Kaisha
    • Tetsuyo Ohashi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Handheld printing apparatus
    • Patent number 11,932,034
    • Issue date Mar 19, 2024
    • Canon Kabushiki Kaisha
    • Tetsuyo Ohashi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Handheld printing apparatus
    • Patent number 11,840,061
    • Issue date Dec 12, 2023
    • Canon Kabushiki Kaisha
    • Tetsuyo Ohashi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Hanheld printing apparatus
    • Patent number 11,833,845
    • Issue date Dec 5, 2023
    • Canon Kabushiki Kaisha
    • Tetsuyo Ohashi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Inkjet printing apparatus and recovery method
    • Patent number 11,794,479
    • Issue date Oct 24, 2023
    • Canon Kabushiki Kaisha
    • Takahiro Kiuchi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Cleaning blade, sheet conveyance roller, process cartridge, and ima...
    • Patent number 11,442,396
    • Issue date Sep 13, 2022
    • Ricoh Company, Ltd.
    • Kazuhiko Watanabe
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Inkjet printing apparatus and recovery method
    • Patent number 11,345,154
    • Issue date May 31, 2022
    • Canon Kabushiki Kaisha
    • Takahiro Kiuchi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Image forming apparatus with a temperature change suppressor
    • Patent number 11,150,604
    • Issue date Oct 19, 2021
    • Ricoh Company, Ltd.
    • Kazuhiko Watanabe
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Inkjet printing apparatus and treatment liquid holding unit
    • Patent number 11,141,979
    • Issue date Oct 12, 2021
    • Canon Kabushiki Kaisha
    • Hiroshi Nakai
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Liquid ejection apparatus and maintenance apparatus
    • Patent number 11,130,341
    • Issue date Sep 28, 2021
    • Canon Kabushiki Kaisha
    • Hiroshi Nakai
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Inkjet printing apparatus and ink filling method
    • Patent number 10,894,416
    • Issue date Jan 19, 2021
    • Canon Kabushiki Kaisha
    • Hiroshi Nakai
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Liquid ejecting apparatus
    • Patent number 10,843,467
    • Issue date Nov 24, 2020
    • Canon Kabushiki Kaisha
    • Hiroshi Nakai
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Liquid ejection apparatus
    • Patent number 10,814,633
    • Issue date Oct 27, 2020
    • Canon Kabushiki Kaisha
    • Yoshinori Yamaguchi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Inkjet printing apparatus
    • Patent number 10,710,368
    • Issue date Jul 14, 2020
    • Canon Kabushiki Kaisha
    • Takahiro Kiuchi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Punch die
    • Patent number 10,668,520
    • Issue date Jun 2, 2020
    • AMADA HOLDINGS CO., LTD.
    • Shigeru Endo
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Inkjet printing apparatus and ejecting method
    • Patent number 10,543,680
    • Issue date Jan 28, 2020
    • Canon Kabushiki Kaisha
    • Takuya Fukasawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Cleaning blade, cleaning device, image forming apparatus, and proce...
    • Patent number 10,514,651
    • Issue date Dec 24, 2019
    • Ricoh Company, Ltd.
    • Kazuhiko Watanabe
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Inkjet printing apparatus
    • Patent number 10,493,762
    • Issue date Dec 3, 2019
    • Canon Kabushiki Kaisha
    • Noriko Sato
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Punch die
    • Patent number 10,052,674
    • Issue date Aug 21, 2018
    • AMADA HOLDINGS CO., LTD.
    • Shigeru Endo
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Punch die
    • Patent number 9,833,829
    • Issue date Dec 5, 2017
    • AMADA HOLDINGS CO., LTD.
    • Shigeru Endo
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Punch die
    • Patent number 9,770,751
    • Issue date Sep 26, 2017
    • AMADA HOLDINGS CO., LTD.
    • Shigeru Endo
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Image bearer protective agent, protective layer forming device, ima...
    • Patent number 9,753,426
    • Issue date Sep 5, 2017
    • Ricoh Company, Ltd.
    • Kenji Komito
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Punch tool device and method of supplying lubricating oil
    • Patent number 9,669,450
    • Issue date Jun 6, 2017
    • Amada Company, Limited
    • Hiroshi Nakai
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Protective layer forming device and image forming apparatus
    • Patent number 9,513,594
    • Issue date Dec 6, 2016
    • Ricoh Company, Ltd.
    • Kunio Hasegawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Motor control method and print apparatus
    • Patent number 9,365,059
    • Issue date Jun 14, 2016
    • Canon Kabushiki Kaisha
    • Masaaki Matsuura
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Printing device, tray and conveyance device
    • Patent number 9,272,543
    • Issue date Mar 1, 2016
    • Canon Kabushiki Kaisha
    • Kazuo Ohyama
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Image bearing member protecting agent, protective layer forming dev...
    • Patent number 9,217,985
    • Issue date Dec 22, 2015
    • Ricoh Company, Ltd.
    • Kenji Komito
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Die and die device
    • Patent number 9,138,909
    • Issue date Sep 22, 2015
    • Amada Company, Limited
    • Kinshiro Naito
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

  • Information Patent Application

    PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS INCORPORATING THE SAME
    • Publication number 20240231253
    • Publication date Jul 11, 2024
    • Hiroshi NAKAI
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    IMAGE FORMING APPARATUS
    • Publication number 20230229107
    • Publication date Jul 20, 2023
    • RICOH COMPANY, LTD.
    • Kazuhiko WATANABE
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    HANDHELD PRINTING APPARATUS
    • Publication number 20230035842
    • Publication date Feb 2, 2023
    • Canon Kabushiki Kaisha
    • Hiroshi Nakai
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    LIQUID DISCHARGE APPARATUS AND CONTROL METHOD OF THE SAME
    • Publication number 20230032832
    • Publication date Feb 2, 2023
    • Canon Kabushiki Kaisha
    • Takahiro Itamoto
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    HANHELD PRINTING APPARATUS
    • Publication number 20230030073
    • Publication date Feb 2, 2023
    • Canon Kabushiki Kaisha
    • Tetsuyo Ohashi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    HANDHELD PRINTING APPARATUS
    • Publication number 20230034416
    • Publication date Feb 2, 2023
    • Canon Kabushiki Kaisha
    • Tetsuyo Ohashi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    HANDHELD PRINTING APPARATUS
    • Publication number 20230034722
    • Publication date Feb 2, 2023
    • Canon Kabushiki Kaisha
    • Tetsuyo Ohashi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    HANDHELD PRINTING APPARATUS
    • Publication number 20230036021
    • Publication date Feb 2, 2023
    • Canon Kabushiki Kaisha
    • Tetsuyo Ohashi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    INKJET PRINTING APPARATUS AND RECOVERY METHOD
    • Publication number 20220250386
    • Publication date Aug 11, 2022
    • Canon Kabushiki Kaisha
    • Takahiro Kiuchi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    CLEANING BLADE, SHEET CONVEYANCE ROLLER, PROCESS CARTRIDGE, AND IMA...
    • Publication number 20210216032
    • Publication date Jul 15, 2021
    • RICOH COMPANY, LTD.
    • Kazuhiko WATANABE
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    IMAGE FORMING APPARATUS
    • Publication number 20210034010
    • Publication date Feb 4, 2021
    • Ricoh Company, Ltd.
    • Kazuhiko WATANABE
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    INKJET PRINTING APPARATUS AND INK FILLING METHOD
    • Publication number 20200108619
    • Publication date Apr 9, 2020
    • Canon Kabushiki Kaisha
    • Hiroshi Nakai
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    INKJET PRINTING APPARATUS AND RECOVERY METHOD
    • Publication number 20200108610
    • Publication date Apr 9, 2020
    • Canon Kabushiki Kaisha
    • Takahiro Kiuchi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    LIQUID EJECTION APPARATUS AND MAINTENANCE APPARATUS
    • Publication number 20200047507
    • Publication date Feb 13, 2020
    • Canon Kabushiki Kaisha
    • Hiroshi Nakai
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    LIQUID EJECTION APPARATUS
    • Publication number 20190070855
    • Publication date Mar 7, 2019
    • Canon Kabushiki Kaisha
    • Yoshinori Yamaguchi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    INKJET PRINTING APPARATUS AND EJECTING METHOD
    • Publication number 20190009522
    • Publication date Jan 10, 2019
    • Canon Kabushiki Kaisha
    • Takuya Fukasawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    INKJET PRINTING APPARATUS
    • Publication number 20190009548
    • Publication date Jan 10, 2019
    • Canon Kabushiki Kaisha
    • Noriko Sato
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    LIQUID EJECTING APPARATUS
    • Publication number 20190009553
    • Publication date Jan 10, 2019
    • Canon Kabushiki Kaisha
    • Hiroshi Nakai
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
    • Publication number 20180373198
    • Publication date Dec 27, 2018
    • Hiroshi Mizusawa
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Application

    PUNCH DIE
    • Publication number 20180318903
    • Publication date Nov 8, 2018
    • AMADA HOLDINGS CO., LTD.
    • Shigeru ENDO
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    INKJET PRINTING APPARATUS AND TREATMENT LIQUID HOLDING UNIT
    • Publication number 20180311960
    • Publication date Nov 1, 2018
    • Canon Kabushiki Kaisha
    • Hiroshi Nakai
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    INKJET PRINTING APPARATUS
    • Publication number 20180311961
    • Publication date Nov 1, 2018
    • Canon Kabushiki Kaisha
    • Takahiro Kiuchi
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    PUNCH DIE
    • Publication number 20170348752
    • Publication date Dec 7, 2017
    • AMADA HOLDINGS CO., LTD.
    • Shigeru ENDO
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    IMAGE BEARER PROTECTIVE AGENT, PROTECTIVE LAYER FORMING DEVICE, IMA...
    • Publication number 20170090399
    • Publication date Mar 30, 2017
    • Kenji KOMITO
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    PUNCH DIE
    • Publication number 20150367400
    • Publication date Dec 24, 2015
    • AMADA HOLDINGS CO., LTD.
    • Shigeru ENDO
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    PUNCH DIE
    • Publication number 20150360276
    • Publication date Dec 17, 2015
    • AMADA HOLDINGS CO., LTD.
    • Shigeru ENDO
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    PRINTING DEVICE, TRAY AND CONVEYANCE DEVICE
    • Publication number 20150183237
    • Publication date Jul 2, 2015
    • Canon Kabushiki Kaisha
    • Kazuo Ohyama
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    MOTOR CONTROL METHOD AND PRINT APPARATUS
    • Publication number 20150183239
    • Publication date Jul 2, 2015
    • Canon Kabushiki Kaisha
    • Masaaki Matsuura
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    PRINTING APPARATUS AND CONTROL METHOD
    • Publication number 20150174928
    • Publication date Jun 25, 2015
    • Canon Kabushiki Kaisha
    • Toshiaki Tokisawa
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Application

    PROTECTIVE LAYER FORMING DEVICE AND IMAGE FORMING APPARATUS
    • Publication number 20150139710
    • Publication date May 21, 2015
    • RICOH COMPANY, LTD.
    • Kunio HASEGAWA
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY