Naoki Matsumaru

Person

Suntou-gun, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Cartridge and image forming apparatus
- Patent number 12,072,664
- Issue date Aug 27, 2024
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cartridge and image forming apparatus
- Patent number 12,032,325
- Issue date Jul 9, 2024
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge
- Patent number 11,782,383
- Issue date Oct 10, 2023
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cartridge and image forming apparatus
- Patent number 11,703,794
- Issue date Jul 18, 2023
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cartridge and image forming apparatus
- Patent number 11,449,001
- Issue date Sep 20, 2022
- Canon Kabushiki Kaisha
- Akihiro Fujiwara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge, developing apparatus, and image forming apparatus
- Patent number 11,016,411
- Issue date May 25, 2021
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cartridge and imaging forming apparatus
- Patent number 10,962,927
- Issue date Mar 30, 2021
- Canon Kabushiki Kaisha
- Akihiro Fujiwara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cartridge and imaging forming apparatus
- Patent number 10,928,771
- Issue date Feb 23, 2021
- Canon Kabushiki Kaisha
- Akihiro Fujiwara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and cartridge
- Patent number 10,901,366
- Issue date Jan 26, 2021
- Canon Kabushiki Kaisha
- Ryuta Murakami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of manufacturing developer container, developer container, d...
- Patent number 10,802,419
- Issue date Oct 13, 2020
- Canon Kabushiki Kaisha
- Taku Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and cartridge
- Patent number 10,678,184
- Issue date Jun 9, 2020
- Canon Kabushiki Kaisha
- Ryuta Murakami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of manufacturing frame unit, method of manufacturing image c...
- Patent number 10,649,394
- Issue date May 12, 2020
- Canon Kabushiki Kaisha
- Daisuke Makiguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cartridge and image forming apparatus
- Patent number 10,627,780
- Issue date Apr 21, 2020
- Canon Kabushiki Kaisha
- Akihiro Fujiwara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method for manufacturing image bearing unit and method for manufact...
- Patent number 10,564,597
- Issue date Feb 18, 2020
- Canon Kabushiki Kaisha
- Tetsuya Numata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge for image forming apparatus
- Patent number D873341
- Issue date Jan 21, 2020
- Canon Kabushiki Kaisha
- Tadashi Horikawa
- D18 - Printing and office machinery
Information Patent Grant
Method for manufacturing image bearing unit and method for manufact...
- Patent number 10,520,883
- Issue date Dec 31, 2019
- Canon Kabushiki Kaisha
- Tadashi Horikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cartridge and image forming apparatus
- Patent number 10,488,817
- Issue date Nov 26, 2019
- Canon Kabushiki Kaisha
- Akihiro Fujiwara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus having a sealed developer bearing member, proc...
- Patent number 10,345,756
- Issue date Jul 9, 2019
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Frame, cartridge, image forming apparatus, and method for manufactu...
- Patent number 10,322,580
- Issue date Jun 18, 2019
- Canon Kabushiki Kaisha
- Daisuke Makiguchi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Feeding device
- Patent number 10,073,380
- Issue date Sep 11, 2018
- Canon Kabushiki Kaisha
- Hiroaki Nosho
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of manufacturing developer container
- Patent number 9,989,888
- Issue date Jun 5, 2018
- Canon Kabushiki Kaisha
- Taku Watanabe
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Accommodating container, cleaning device, developing device, proces...
- Patent number 9,904,208
- Issue date Feb 27, 2018
- Canon Kabushiki Kaisha
- Naoki Maeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Feeding device, cleaning device, developing device, process cartrid...
- Patent number 9,823,603
- Issue date Nov 21, 2017
- Canon Kabushiki Kaisha
- Ryuta Murakami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer container, development device, process cartridge, and ima...
- Patent number 9,568,860
- Issue date Feb 14, 2017
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,417,604
- Issue date Aug 16, 2016
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer container for detecting developer amount based on capacit...
- Patent number 9,250,567
- Issue date Feb 2, 2016
- Canon Kabushiki Kaisha
- Taku Watanabe
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Photosensitive cartridge and image forming apparatus
- Patent number 9,244,428
- Issue date Jan 26, 2016
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cartridge and image forming apparatus with seal member for sealing...
- Patent number 9,052,638
- Issue date Jun 9, 2015
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge and image forming apparatus
- Patent number 8,583,005
- Issue date Nov 12, 2013
- Canon Kabushiki Kaisha
- Naoya Asanuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus, unit mountable thereto and separating member
- Patent number 7,203,442
- Issue date Apr 10, 2007
- Canon Kabushiki Kaisha
- Hideyuki Matsubara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20230400809
- Publication date Dec 14, 2023
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20230229108
- Publication date Jul 20, 2023
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE
- Publication number 20230115381
- Publication date Apr 13, 2023
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20230048100
- Publication date Feb 16, 2023
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20210149335
- Publication date May 20, 2021
- Canon Kabushiki Kaisha
- Akihiro Fujiwara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE, DEVELOPING APPARATUS, AND IMAGE FORMING APPARATUS
- Publication number 20210080859
- Publication date Mar 18, 2021
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20200301352
- Publication date Sep 24, 2020
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND CARTRIDGE
- Publication number 20200257242
- Publication date Aug 13, 2020
- Canon Kabushiki Kaisha
- Ryuta Murakami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20200081396
- Publication date Mar 12, 2020
- Canon Kabushiki Kaisha
- Akihiro Fujiwara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
METHOD FOR MANUFACTURING IMAGE BEARING UNIT AND METHOD FOR MANUFACT...
- Publication number 20190302683
- Publication date Oct 3, 2019
- Canon Kabushiki Kaisha
- Tadashi Horikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
METHOD OF MANUFACTURING FRAME UNIT, METHOD OF MANUFACTURING IMAGE C...
- Publication number 20190302678
- Publication date Oct 3, 2019
- Canon Kabushiki Kaisha
- Daisuke Makiguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
METHOD FOR MANUFACTURING IMAGE BEARING UNIT AND METHOD FOR MANUFACT...
- Publication number 20190302684
- Publication date Oct 3, 2019
- Canon Kabushiki Kaisha
- Tetsuya Numata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20190227480
- Publication date Jul 25, 2019
- Canon Kabushiki Kaisha
- Akihiro Fujiwara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND CARTRIDGE
- Publication number 20190179257
- Publication date Jun 13, 2019
- Canon Kabushiki Kaisha
- Ryuta Murakami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
METHOD OF MANUFACTURING DEVELOPER CONTAINER, DEVELOPER CONTAINER, D...
- Publication number 20180239276
- Publication date Aug 23, 2018
- Canon Kabushiki Kaisha
- Taku Watanabe
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
DEVELOPING APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20170357208
- Publication date Dec 14, 2017
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FRAME, CARTRIDGE, IMAGE FORMING APPARATUS, AND METHOD FOR MANUFACTU...
- Publication number 20170355192
- Publication date Dec 14, 2017
- Canon Kabushiki Kaisha
- Daisuke Makiguchi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
FEEDING DEVICE
- Publication number 20170108801
- Publication date Apr 20, 2017
- Canon Kabushiki Kaisha
- Hiroaki Nosho
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FEEDING DEVICE, CLEANING DEVICE, DEVELOPING DEVICE, PROCESS CARTRID...
- Publication number 20170108802
- Publication date Apr 20, 2017
- Canon Kabushiki Kaisha
- Ryuta Murakami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ACCOMMODATING CONTAINER, CLEANING DEVICE, DEVELOPING DEVICE, PROCES...
- Publication number 20170108798
- Publication date Apr 20, 2017
- Canon Kabushiki Kaisha
- Naoki Maeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
METHOD OF MANUFACTURING DEVELOPER CONTAINER
- Publication number 20160091821
- Publication date Mar 31, 2016
- Canon Kabushiki Kaisha
- Taku Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20150346682
- Publication date Dec 3, 2015
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PHOTOSENSITIVE CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20150205256
- Publication date Jul 23, 2015
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER CONTAINER, DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMA...
- Publication number 20150016830
- Publication date Jan 15, 2015
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
METHOD OF MANUFACTURING DEVELOPER CONTAINER, DEVELOPER CONTAINER, D...
- Publication number 20150016829
- Publication date Jan 15, 2015
- Canon Kabushiki Kaisha
- Taku Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20140093272
- Publication date Apr 3, 2014
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20120057899
- Publication date Mar 8, 2012
- Canon Kabushiki Kaisha
- Naoya Asanuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus, unit mountable thereto and separating member
- Publication number 20050201773
- Publication date Sep 15, 2005
- Canon Kabushiki Kaisha
- Hideyuki Matsubara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Toner seal member, and process cartridge
- Publication number 20040208668
- Publication date Oct 21, 2004
- Canon Kabushiki Kaisha
- Satoshi Kurihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developing apparatus
- Publication number 20040081480
- Publication date Apr 29, 2004
- Canon Kabushiki Kaisha
- Naoki Matsumaru
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Naoki Matsumaru

Person

Patents Grantslast 30 patents

Cartridge and image forming apparatus

Cartridge and image forming apparatus

Process cartridge

Cartridge and image forming apparatus

Cartridge and image forming apparatus

Process cartridge, developing apparatus, and image forming apparatus

Cartridge and imaging forming apparatus

Cartridge and imaging forming apparatus

Image forming apparatus and cartridge

Method of manufacturing developer container, developer container, d...

Image forming apparatus and cartridge

Method of manufacturing frame unit, method of manufacturing image c...

Cartridge and image forming apparatus

Method for manufacturing image bearing unit and method for manufact...

Process cartridge for image forming apparatus

Method for manufacturing image bearing unit and method for manufact...

Cartridge and image forming apparatus

Developing apparatus having a sealed developer bearing member, proc...

Frame, cartridge, image forming apparatus, and method for manufactu...

Feeding device

Method of manufacturing developer container

Accommodating container, cleaning device, developing device, proces...

Feeding device, cleaning device, developing device, process cartrid...

Developer container, development device, process cartridge, and ima...

Image forming apparatus

Developer container for detecting developer amount based on capacit...

Photosensitive cartridge and image forming apparatus

Cartridge and image forming apparatus with seal member for sealing...

Process cartridge and image forming apparatus

Image forming apparatus, unit mountable thereto and separating member

Patents Applicationslast 30 patents

CARTRIDGE AND IMAGE FORMING APPARATUS

CARTRIDGE AND IMAGE FORMING APPARATUS

PROCESS CARTRIDGE

CARTRIDGE AND IMAGE FORMING APPARATUS

CARTRIDGE AND IMAGE FORMING APPARATUS

PROCESS CARTRIDGE, DEVELOPING APPARATUS, AND IMAGE FORMING APPARATUS

CARTRIDGE AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS AND CARTRIDGE

CARTRIDGE AND IMAGE FORMING APPARATUS

METHOD FOR MANUFACTURING IMAGE BEARING UNIT AND METHOD FOR MANUFACT...

METHOD OF MANUFACTURING FRAME UNIT, METHOD OF MANUFACTURING IMAGE C...

METHOD FOR MANUFACTURING IMAGE BEARING UNIT AND METHOD FOR MANUFACT...

CARTRIDGE AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS AND CARTRIDGE

METHOD OF MANUFACTURING DEVELOPER CONTAINER, DEVELOPER CONTAINER, D...

DEVELOPING APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

FRAME, CARTRIDGE, IMAGE FORMING APPARATUS, AND METHOD FOR MANUFACTU...

FEEDING DEVICE

FEEDING DEVICE, CLEANING DEVICE, DEVELOPING DEVICE, PROCESS CARTRID...

ACCOMMODATING CONTAINER, CLEANING DEVICE, DEVELOPING DEVICE, PROCES...

METHOD OF MANUFACTURING DEVELOPER CONTAINER

IMAGE FORMING APPARATUS

PHOTOSENSITIVE CARTRIDGE AND IMAGE FORMING APPARATUS

DEVELOPER CONTAINER, DEVELOPMENT DEVICE, PROCESS CARTRIDGE, AND IMA...

METHOD OF MANUFACTURING DEVELOPER CONTAINER, DEVELOPER CONTAINER, D...

CARTRIDGE AND IMAGE FORMING APPARATUS

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

Image forming apparatus, unit mountable thereto and separating member

Toner seal member, and process cartridge

Developing apparatus