the process cartridge being mounted parallel to the axis of the photosensitive member

Industry

CPC
G03G21/185

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Parent Industries

GPHYSICS G03Photography G03GELECTROGRAPHY ELECTROPHOTOGRAPHY MAGNETOGRAPHY G03G21/00Arrangements not provided for by groups G03G13/00 - G03G19/00

Current Industry

G03G21/185the process cartridge being mounted parallel to the axis of the photosensitive member

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Developing cartridge providing layout of electrodes and detection gear
- Patent number 12,204,275
- Issue date Jan 21, 2025
- Brother Kogyo Kabushiki Kaisha
- Keita Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image-forming apparatus provided with urging member for urging proc...
- Patent number 12,181,829
- Issue date Dec 31, 2024
- Brother Kogyo Kabushiki Kaisha
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing cartridge with housing having a driving side and an oppo...
- Patent number 12,181,828
- Issue date Dec 31, 2024
- JIANGXI YIBO E-TECH CO.LTD.
- Xiaobing Liu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 12,181,830
- Issue date Dec 31, 2024
- Brother Kogyo Kabushiki Kaisha
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge and image forming apparatus
- Patent number 12,174,582
- Issue date Dec 24, 2024
- Canon Kabushiki Kaisha
- Hideki Maeshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus provided with detachable processing unit
- Patent number 12,169,384
- Issue date Dec 17, 2024
- Canon Kabushiki Kaisha
- Kazuaki Nogami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cartridge and image forming apparatus
- Patent number 12,158,722
- Issue date Dec 3, 2024
- Canon Kabushiki Kaisha
- Noriyuki Komatsu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having detachable cartridges and image form...
- Patent number 12,153,373
- Issue date Nov 26, 2024
- Canon Kabushiki Kaisha
- Hirotaka Ishii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming device
- Patent number 12,147,189
- Issue date Nov 19, 2024
- Brother Kogyo Kabushiki Kaisha
- Kazuna Taguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus provided with detachable processing unit
- Patent number 12,140,901
- Issue date Nov 12, 2024
- Canon Kabushiki Kaisha
- Kazuaki Nogami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cartridge, member constituting cartridge, and image forming apparatus
- Patent number 12,140,903
- Issue date Nov 12, 2024
- Canon Kabushiki Kaisha
- Masaaki Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cartridge, member constituting cartridge, and image forming apparatus
- Patent number 12,140,904
- Issue date Nov 12, 2024
- Canon Kabushiki Kaisha
- Masaaki Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 12,130,580
- Issue date Oct 29, 2024
- Brother Kogyo Kabushiki Kaisha
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Drum unit, cartridge, process cartridge and electrophotographic ima...
- Patent number 12,130,582
- Issue date Oct 29, 2024
- Canon Kabushiki Kaisha
- Daisuke Abe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cartridge and drum unit for electrophotographic image forming appar...
- Patent number 12,130,579
- Issue date Oct 29, 2024
- Canon Kabushiki Kaisha
- Shigemi Kamoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge and image forming apparatus
- Patent number 12,130,581
- Issue date Oct 29, 2024
- Canon Kabushiki Kaisha
- Hideki Maeshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Drum unit, cartridge and coupling member
- Patent number 12,124,211
- Issue date Oct 22, 2024
- Canon Kabushiki Kaisha
- Tetsuo Uesugi
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Image forming apparatus
- Patent number 12,124,209
- Issue date Oct 22, 2024
- Brother Kogyo Kabushiki Kaisha
- Shougo Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process unit
- Patent number 12,117,766
- Issue date Oct 15, 2024
- Brother Kogyo Kabushiki Kaisha
- Masatoshi Shiraki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with movable joint cam, and rotator
- Patent number 12,111,605
- Issue date Oct 8, 2024
- Brother Kogyo Kabushiki Kaisha
- Wataru Yamaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having improved mountability of a cartridge...
- Patent number 12,111,610
- Issue date Oct 8, 2024
- Canon Kabushiki Kaisha
- Takeo Kawanami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing cartridge
- Patent number 12,105,443
- Issue date Oct 1, 2024
- JIANGXI YIBO E-TECH CO.LTD.
- Shiping Ao
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing cartridge including developing roller and coupling
- Patent number 12,092,992
- Issue date Sep 17, 2024
- Brother Kogyo Kabushiki Kaisha
- Nao Itabashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Connection structure for coupling with toner cartridge
- Patent number 12,085,885
- Issue date Sep 10, 2024
- Hewlett-Packard Development Company, L.P.
- Jaeil Yu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Drum unit, cartridge and coupling member
- Patent number 12,072,668
- Issue date Aug 27, 2024
- Canon Kabushiki Kaisha
- Tetsuo Uesugi
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Image forming apparatus
- Patent number 12,066,787
- Issue date Aug 20, 2024
- Brother Kogyo Kabushiki Kaisha
- Hiroshi Nakano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cartridge and drum unit for electrophotographic image forming appar...
- Patent number 12,066,786
- Issue date Aug 20, 2024
- Canon Kabushiki Kaisha
- Shigemi Kamoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic image forming apparatus
- Patent number 12,055,885
- Issue date Aug 6, 2024
- Canon Kabushiki Kaisha
- Ken Kikuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cartridge, process cartridge and electrophotographic image forming...
- Patent number 12,050,432
- Issue date Jul 30, 2024
- Canon Kabushiki Kaisha
- Masaaki Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image-forming apparatus provided with mechanism for opening and clo...
- Patent number 12,044,992
- Issue date Jul 23, 2024
- Brother Kogyo Kabushiki Kaisha
- Saya Minoshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20250021040
- Publication date Jan 16, 2025
- BROTHER KOGYO KABUSHIKI KAISHA
- Mikio Inuzuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POSITIONING ADAPTER, ADAPTER, AND CARTRIDGE
- Publication number 20250021047
- Publication date Jan 16, 2025
- ZHUHAI PANTUM ELECTRONICS CO., LTD.
- Feng CHEN
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING CARTRIDGE
- Publication number 20250013189
- Publication date Jan 9, 2025
- E-Z INK TECHNOLOGY CO., LTD
- Yu ZHU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARTRIDGE AND DRUM UNIT FOR ELECTROPHOTOGRAPHIC IMAGE FORMING APPAR...
- Publication number 20250013188
- Publication date Jan 9, 2025
- Canon Kabushiki Kaisha
- Shigemi Kamoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE
- Publication number 20250013194
- Publication date Jan 9, 2025
- Zhuhai Ninestar Information Technology Co., Ltd
- Baosheng ZHONG
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING DEVICE
- Publication number 20250013193
- Publication date Jan 9, 2025
- BROTHER KOGYO KABUSHIKI KAISHA
- Kazuna TAGUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20250004420
- Publication date Jan 2, 2025
- KYOCERA DOCUMENT SOLUTIONS INC.
- Satoshi ANDO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20240427285
- Publication date Dec 26, 2024
- Canon Kabushiki Kaisha
- Ryuji Hamasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, AND...
- Publication number 20240419122
- Publication date Dec 19, 2024
- Canon Kabushiki Kaisha
- Takahito Ueno
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20240419121
- Publication date Dec 19, 2024
- BROTHER KOGYO KABUSHIKI KAISHA
- Wataru YAMAGUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING CARTRIDGE INCLUDING DEVELOPING ROLLER AND COUPLING
- Publication number 20240419123
- Publication date Dec 19, 2024
- BROTHER KOGYO KABUSHIKI KAISHA
- Nao Itabashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20240411268
- Publication date Dec 12, 2024
- KYOCERA DOCUMENT SOLUTIONS INC.
- Tatsuro Arata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING CARTRIDGE AND ELECTRONIC IMAGING APPARATUS
- Publication number 20240402644
- Publication date Dec 5, 2024
- Zhuhai Ninestar Information Technology Co., Ltd
- Geming DING
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20240385570
- Publication date Nov 21, 2024
- Canon Kabushiki Kaisha
- NORIYUKI KOMATSU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20240369968
- Publication date Nov 7, 2024
- Canon Kabushiki Kaisha
- Hideki Maeshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS HAVING IMPROVED MOUNTABILITY OF A CARTRIDGE...
- Publication number 20240369966
- Publication date Nov 7, 2024
- Canon Kabushiki Kaisha
- Takeo Kawanami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20240369967
- Publication date Nov 7, 2024
- Canon Kabushiki Kaisha
- Hideki Maeshima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS
- Publication number 20240361725
- Publication date Oct 31, 2024
- Canon Kabushiki Kaisha
- KANAME WATARIGUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS
- Publication number 20240361709
- Publication date Oct 31, 2024
- Canon Kabushiki Kaisha
- CHIHARU AKIYAMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS
- Publication number 20240361724
- Publication date Oct 31, 2024
- Canon Kabushiki Kaisha
- CHIHARU AKIYAMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS
- Publication number 20240353790
- Publication date Oct 24, 2024
- Canon Kabushiki Kaisha
- Ken Kikuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS INCLUDING COUPLING MEMBER SELECTIVELY COUPL...
- Publication number 20240345537
- Publication date Oct 17, 2024
- BROTHER KOGYO KABUSHIKI KAISHA
- Yasushi OKABE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DRUM UNIT, CARTRIDGE, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMA...
- Publication number 20240329595
- Publication date Oct 3, 2024
- Canon Kabushiki Kaisha
- Daisuke Abe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE-FORMING APPARATUS PROVIDED WITH MECHANISM FOR OPENING AND CLO...
- Publication number 20240329573
- Publication date Oct 3, 2024
- BROTHER KOGYO KABUSHIKI KAISHA
- Saya MINOSHIMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARTRIDGE, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING...
- Publication number 20240319663
- Publication date Sep 26, 2024
- Canon Kabushiki Kaisha
- Masaaki Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DRUM UNIT, CARTRIDGE AND COUPLING MEMBER
- Publication number 20240310779
- Publication date Sep 19, 2024
- Canon Kabushiki Kaisha
- Tetsuo Uesugi
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
CARTRIDGE, MEMBER CONSTITUTING CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20240302789
- Publication date Sep 12, 2024
- Canon Kabushiki Kaisha
- Masaaki Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARTRIDGE, MEMBER CONSTITUTING CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20240302788
- Publication date Sep 12, 2024
- Canon Kabushiki Kaisha
- Masaaki Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLUTCH ACTUATION BETWEEN POSITIONS
- Publication number 20240288818
- Publication date Aug 29, 2024
- Hewlett-Packard Development Company, L.P.
- Jeffrey Harold Luke
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARTRIDGE, MEMBER CONSTITUTING CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20240280937
- Publication date Aug 22, 2024
- Canon Kabushiki Kaisha
- Masaaki Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

the process cartridge being mounted parallel to the axis of the photosensitive member

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Developing cartridge providing layout of electrodes and detection gear

Image-forming apparatus provided with urging member for urging proc...

Developing cartridge with housing having a driving side and an oppo...

Image forming apparatus

Process cartridge and image forming apparatus

Image forming apparatus provided with detachable processing unit

Cartridge and image forming apparatus

Image forming apparatus having detachable cartridges and image form...

Image forming device

Image forming apparatus provided with detachable processing unit

Cartridge, member constituting cartridge, and image forming apparatus

Cartridge, member constituting cartridge, and image forming apparatus

Image forming apparatus

Drum unit, cartridge, process cartridge and electrophotographic ima...

Cartridge and drum unit for electrophotographic image forming appar...

Process cartridge and image forming apparatus

Drum unit, cartridge and coupling member

Image forming apparatus

Process unit

Image forming apparatus with movable joint cam, and rotator

Image forming apparatus having improved mountability of a cartridge...

Developing cartridge

Developing cartridge including developing roller and coupling

Connection structure for coupling with toner cartridge

Drum unit, cartridge and coupling member

Image forming apparatus

Cartridge and drum unit for electrophotographic image forming appar...

Electrophotographic image forming apparatus

Cartridge, process cartridge and electrophotographic image forming...

Image-forming apparatus provided with mechanism for opening and clo...

Patents Applicationslast 30 patents

IMAGE FORMING APPARATUS

POSITIONING ADAPTER, ADAPTER, AND CARTRIDGE

DEVELOPING CARTRIDGE

CARTRIDGE AND DRUM UNIT FOR ELECTROPHOTOGRAPHIC IMAGE FORMING APPAR...

PROCESS CARTRIDGE

IMAGE FORMING DEVICE

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, AND...

IMAGE FORMING APPARATUS

DEVELOPING CARTRIDGE INCLUDING DEVELOPING ROLLER AND COUPLING

IMAGE FORMING APPARATUS

DEVELOPING CARTRIDGE AND ELECTRONIC IMAGING APPARATUS

CARTRIDGE AND IMAGE FORMING APPARATUS

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS HAVING IMPROVED MOUNTABILITY OF A CARTRIDGE...

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS

PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS

PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS

ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS INCLUDING COUPLING MEMBER SELECTIVELY COUPL...

DRUM UNIT, CARTRIDGE, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMA...

IMAGE-FORMING APPARATUS PROVIDED WITH MECHANISM FOR OPENING AND CLO...

CARTRIDGE, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING...

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

CARTRIDGE, MEMBER CONSTITUTING CARTRIDGE, AND IMAGE FORMING APPARATUS

CARTRIDGE, MEMBER CONSTITUTING CARTRIDGE, AND IMAGE FORMING APPARATUS

CLUTCH ACTUATION BETWEEN POSITIONS

CARTRIDGE, MEMBER CONSTITUTING CARTRIDGE, AND IMAGE FORMING APPARATUS