characterised by the structure of the donor member

Industry

CPC
G03G15/0818

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Parent Industries

GPHYSICS G03Photography G03GELECTROGRAPHY ELECTROPHOTOGRAPHY MAGNETOGRAPHY G03G15/00Apparatus for electrographic processes using a charge pattern

Current Industry

G03G15/0818characterised by the structure of the donor member

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Developer roller
- Patent number 12,204,260
- Issue date Jan 21, 2025
- Hewlett-Packard Development Company, L.P.
- Jeffrey Zampell
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device having enhanced carrier control
- Patent number 12,197,147
- Issue date Jan 14, 2025
- Canon Kabushiki Kaisha
- Chihiro Tanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing roller, process cartridge, and electrophotographic image...
- Patent number 12,164,242
- Issue date Dec 10, 2024
- Canon Kabushiki Kaisha
- Toru Ishii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic member, process cartridge, and electrophotograp...
- Patent number 12,158,724
- Issue date Dec 3, 2024
- Canon Kabushiki Kaisha
- Akio Nishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, cleaning method, process cartridge and electroph...
- Patent number 12,147,172
- Issue date Nov 19, 2024
- Canon Kabushiki Kaisha
- Ryo Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having toner charging
- Patent number 12,147,170
- Issue date Nov 19, 2024
- Canon Kabushiki Kaisha
- Yuta Isobe
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Developing apparatus
- Patent number 12,135,510
- Issue date Nov 5, 2024
- Canon Kabushiki Kaisha
- Tomoyuki Sakamaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Conductive roller
- Patent number 12,105,435
- Issue date Oct 1, 2024
- NOK Corporation
- Shogo Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier for forming electrophotographic image, developing agent for...
- Patent number 12,105,472
- Issue date Oct 1, 2024
- Ricoh Company, Ltd.
- Kento Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electroconductive member, process cartridge, and electrophotographi...
- Patent number 12,032,331
- Issue date Jul 9, 2024
- Canon Kabushiki Kaisha
- Atsushi Uematsu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electroconductive member, process cartridge, and electrophotographi...
- Patent number 12,001,166
- Issue date Jun 4, 2024
- Canon Kabushiki Kaisha
- Atsushi Uematsu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device with magnetic member having plurality of magnetic...
- Patent number 12,001,156
- Issue date Jun 4, 2024
- Hewlett-Packard Development Company, L.P.
- Seungchan Park
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing cartridge
- Patent number 11,982,973
- Issue date May 14, 2024
- Brother Kogyo Kabushiki Kaisha
- Keita Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic member, electrophotographic process cartridge,...
- Patent number 11,966,174
- Issue date Apr 23, 2024
- Canon Kabushiki Kaisha
- Takashi Koyanagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Conductive roller, image forming apparatus, and inspection method f...
- Patent number 11,947,273
- Issue date Apr 2, 2024
- NOK Corporation
- Shogo Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing roll
- Patent number 11,934,110
- Issue date Mar 19, 2024
- NOK Corporation
- Kosuke Oura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing roll
- Patent number 11,921,439
- Issue date Mar 5, 2024
- NOK Corporation
- Kosuke Oura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing roller of electrophotographic device without prone to sc...
- Patent number 11,906,909
- Issue date Feb 20, 2024
- Bando Chemical Industries, Ltd.
- Taku Yamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing roller of electrophotographic device without prone to sc...
- Patent number 11,868,062
- Issue date Jan 9, 2024
- Bando Chemical Industries, Ltd.
- Taku Yamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device
- Patent number 11,852,989
- Issue date Dec 26, 2023
- Canon Kabushiki Kaisha
- Osamu Ariizumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device
- Patent number 11,846,898
- Issue date Dec 19, 2023
- Canon Kabushiki Kaisha
- Chihiro Tanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing roller, process cartridge, and electrophotographic image...
- Patent number 11,841,629
- Issue date Dec 12, 2023
- Canon Kabushiki Kaisha
- Toru Ishii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development roll for electrophotographic apparatuses
- Patent number 11,774,875
- Issue date Oct 3, 2023
- Sumitomo Riko Company Limited
- Satoshi Endo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Roll member, charging member, charging device, process cartridge, a...
- Patent number 11,754,937
- Issue date Sep 12, 2023
- FUJIFILM Business Innovation Corp.
- Yuki Tagawa
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Charging roll
- Patent number 11,714,364
- Issue date Aug 1, 2023
- NOK CORPORATION
- Kosuke Oura
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 11,650,524
- Issue date May 16, 2023
- Toshiba Tec Kabushiki Kaisha
- Atsushi Yamazoe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging roll
- Patent number 11,650,514
- Issue date May 16, 2023
- NOK CORPORATION
- Kousuke Oura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus, electrophotography process cartridge, and ele...
- Patent number 11,650,516
- Issue date May 16, 2023
- Canon Kabushiki Kaisha
- Tomoya Uesugi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic electro-conductive member, process cartridge, a...
- Patent number 11,586,121
- Issue date Feb 21, 2023
- Canon Kabushiki Kaisha
- Masaki Yamada
- 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

Patents Applicationslast 30 patents

Information Patent Application
DEVELOPING APPARATUS
- Publication number 20250028263
- Publication date Jan 23, 2025
- Canon Kabushiki Kaisha
- Tomoyuki Sakamaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20240411241
- Publication date Dec 12, 2024
- KYOCERA DOCUMENT SOLUTIONS INC.
- Takeo MIZOBE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING ROLLER, PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC IMAGE FOR...
- Publication number 20240353777
- Publication date Oct 24, 2024
- Konica Minolta, Inc.
- Michiaki ISHIKAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE-FORMING ROLLER, CHARGE ROLLER, METHOD FOR INSPECTING IMAGE-FO...
- Publication number 20240337963
- Publication date Oct 10, 2024
- SYNZTEC CO., LTD.
- Atsushi IKEDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20240329560
- Publication date Oct 3, 2024
- FUJIFILM Business Innovation Corp.
- Mizue Sekine
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING ROLLER
- Publication number 20240280925
- Publication date Aug 22, 2024
- Sumitomo Rubber Industries, Ltd.
- SHUNSUKE KOSAKA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE
- Publication number 20240272565
- Publication date Aug 15, 2024
- Canon Kabushiki Kaisha
- Osamu Ariizumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING CARTRIDGE
- Publication number 20240264563
- Publication date Aug 8, 2024
- BROTHER KOGYO KABUSHIKI KAISHA
- Keita SHIMIZU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME
- Publication number 20240160123
- Publication date May 16, 2024
- KYOCERA DOCUMENT SOLUTIONS INC.
- Tomohiro TAMAKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20240142891
- Publication date May 2, 2024
- KYOCERA DOCUMENT SOLUTIONS INC.
- Minoru WADA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, CLEANING METHOD, PROCESS CARTRIDGE AND ELECTROPH...
- Publication number 20240111227
- Publication date Apr 4, 2024
- Canon Kabushiki Kaisha
- RYO SUGIYAMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING ROLLER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE...
- Publication number 20240085821
- Publication date Mar 14, 2024
- Canon Kabushiki Kaisha
- Toru Ishii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE
- Publication number 20240069470
- Publication date Feb 29, 2024
- Canon Kabushiki Kaisha
- Chihiro Tanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE WITH MAGNETIC MEMBER HAVING PLURALITY OF MAGNETIC...
- Publication number 20240027938
- Publication date Jan 25, 2024
- Hewlett-Packard Development Company, L.P.
- Seungchan PARK
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING CARTRIDGE
- Publication number 20240019797
- Publication date Jan 18, 2024
- BROTHER KOGYO KABUSHIKI KAISHA
- Keita SHIMIZU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAP...
- Publication number 20240004326
- Publication date Jan 4, 2024
- Canon Kabushiki Kaisha
- AYUMI SASAKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER ROLLER
- Publication number 20230400790
- Publication date Dec 14, 2023
- Hewlett-Packard Development Company, L.P.
- Jeffrey ZAMPELL
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARRIER FOR FORMING ELECTROPHOTOGRAPHIC IMAGE, DEVELOPING AGENT FOR...
- Publication number 20230393491
- Publication date Dec 7, 2023
- RICOH COMPANY, LTD.
- Kento TAKEUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC MEMBER, ELECTROPHOTOGRAPHIC PROCESS CARTRIDGE,...
- Publication number 20230384710
- Publication date Nov 30, 2023
- Canon Kabushiki Kaisha
- TAKASHI KOYANAGI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20230305430
- Publication date Sep 28, 2023
- KYOCERA DOCUMENT SOLUTIONS INC.
- Tomohiro TAMAKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CONDUCTIVE ROLLER, IMAGE FORMING APPARATUS, AND INSPECTION METHOD F...
- Publication number 20230288834
- Publication date Sep 14, 2023
- NOK Corporation
- Shogo SUZUKI
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
DEVELOPING DEVICE
- Publication number 20230251590
- Publication date Aug 10, 2023
- Canon Kabushiki Kaisha
- Osamu Ariizumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING ROLL
- Publication number 20230244154
- Publication date Aug 3, 2023
- NOK Corporation
- Kosuke OURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING ROLL
- Publication number 20230221661
- Publication date Jul 13, 2023
- NOK Corporation
- Kosuke OURA
- 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
DEVELOPING ROLLER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE...
- Publication number 20230168602
- Publication date Jun 1, 2023
- Canon Kabushiki Kaisha
- Toru Ishii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC MEMBER, ELECTROPHOTOGRAPHIC PROCESS CARTRIDGE,...
- Publication number 20220308496
- Publication date Sep 29, 2022
- Canon Kabushiki Kaisha
- Kazuaki Nagaoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE...
- Publication number 20220291607
- Publication date Sep 15, 2022
- Canon Kabushiki Kaisha
- Takashi Koyanagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAP...
- Publication number 20220276579
- Publication date Sep 1, 2022
- Canon Kabushiki Kaisha
- Akio Nishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING APPARATUS, ELECTROPHOTOGRAPHY PROCESS CARTRIDGE, AND ELE...
- Publication number 20220236663
- Publication date Jul 28, 2022
- Canon Kabushiki Kaisha
- Tomoya Uesugi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

characterised by the structure of the donor member

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Developer roller

Developing device having enhanced carrier control

Developing roller, process cartridge, and electrophotographic image...

Electrophotographic member, process cartridge, and electrophotograp...

Developing device, cleaning method, process cartridge and electroph...

Image forming apparatus having toner charging

Developing apparatus

Conductive roller

Carrier for forming electrophotographic image, developing agent for...

Electroconductive member, process cartridge, and electrophotographi...

Electroconductive member, process cartridge, and electrophotographi...

Developing device with magnetic member having plurality of magnetic...

Developing cartridge

Electrophotographic member, electrophotographic process cartridge,...

Conductive roller, image forming apparatus, and inspection method f...

Developing roll

Developing roll

Developing roller of electrophotographic device without prone to sc...

Developing roller of electrophotographic device without prone to sc...

Developing device

Developing device

Developing roller, process cartridge, and electrophotographic image...

Development roll for electrophotographic apparatuses

Roll member, charging member, charging device, process cartridge, a...

Charging roll

Fixing device and image forming apparatus

Charging roll

Developing apparatus, electrophotography process cartridge, and ele...

Electrophotographic electro-conductive member, process cartridge, a...

Developing apparatus

Patents Applicationslast 30 patents

DEVELOPING APPARATUS

IMAGE FORMING APPARATUS

DEVELOPING ROLLER, PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC IMAGE FOR...

IMAGE-FORMING ROLLER, CHARGE ROLLER, METHOD FOR INSPECTING IMAGE-FO...

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS

DEVELOPING ROLLER

DEVELOPING DEVICE

DEVELOPING CARTRIDGE

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME

IMAGE FORMING APPARATUS

DEVELOPING DEVICE, CLEANING METHOD, PROCESS CARTRIDGE AND ELECTROPH...

DEVELOPING ROLLER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE...

DEVELOPING DEVICE

DEVELOPING DEVICE WITH MAGNETIC MEMBER HAVING PLURALITY OF MAGNETIC...

DEVELOPING CARTRIDGE

ELECTROPHOTOGRAPHIC MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAP...

DEVELOPER ROLLER

CARRIER FOR FORMING ELECTROPHOTOGRAPHIC IMAGE, DEVELOPING AGENT FOR...

ELECTROPHOTOGRAPHIC MEMBER, ELECTROPHOTOGRAPHIC PROCESS CARTRIDGE,...

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS

CONDUCTIVE ROLLER, IMAGE FORMING APPARATUS, AND INSPECTION METHOD F...

DEVELOPING DEVICE

DEVELOPING ROLL

DEVELOPING ROLL

DEVELOPING APPARATUS

DEVELOPING ROLLER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE...

ELECTROPHOTOGRAPHIC MEMBER, ELECTROPHOTOGRAPHIC PROCESS CARTRIDGE,...

DEVELOPING DEVICE, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE...

ELECTROPHOTOGRAPHIC MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAP...

DEVELOPING APPARATUS, ELECTROPHOTOGRAPHY PROCESS CARTRIDGE, AND ELE...