Natsumi Katoh

Person

Yokohama city, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Development device and image forming apparatus
- Patent number 8,639,150
- Issue date Jan 28, 2014
- Ricoh Company Limited
- Tomoya Ohmura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device and image forming apparatus
- Patent number 8,280,281
- Issue date Oct 2, 2012
- Ricoh Company, Limited
- Tomoya Ohmura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus and image forming apparatus using same
- Patent number 8,260,175
- Issue date Sep 4, 2012
- Ricoh Company, Ltd.
- Tomoyuki Ichikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and image forming apparatus
- Patent number 8,185,021
- Issue date May 22, 2012
- Ricoh Company, Limited
- Natsumi Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image forming method including transpor...
- Patent number 8,175,488
- Issue date May 8, 2012
- Ricoh Company, Ltd.
- Nobuo Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus and image forming apparatus using same
- Patent number 8,139,985
- Issue date Mar 20, 2012
- Ricoh Company, Ltd.
- Tomoyuki Ichikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing agent circulation system and image forming apparatus usi...
- Patent number 8,112,016
- Issue date Feb 7, 2012
- Ricoh Company, Ltd.
- Junichi Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing system and image forming apparatus incorporating same
- Patent number 8,103,197
- Issue date Jan 24, 2012
- Ricoh Company, Limited
- Junichi Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device and image forming apparatus
- Patent number 8,073,368
- Issue date Dec 6, 2011
- Ricoh Company Limited
- Nobuo Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device including a stirring mechanism for a two-componen...
- Patent number 8,036,576
- Issue date Oct 11, 2011
- Ricoh Company Limited
- Natsumi Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development device and image forming apparatus
- Patent number 8,014,703
- Issue date Sep 6, 2011
- Ricoh Company Limited
- Tomoya Ohmura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device using two-component developing agent and image fo...
- Patent number 8,000,638
- Issue date Aug 16, 2011
- Ricoh Company, Ltd.
- Tomoya Ohmura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device for developing latent images to toner images
- Patent number 7,953,350
- Issue date May 31, 2011
- Ricoh Company Limited
- Junichi Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus, process cartridge, and development device
- Patent number 7,912,408
- Issue date Mar 22, 2011
- Ricoh Company Limited
- Nobuo Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and image forming apparatus
- Patent number 7,835,653
- Issue date Nov 16, 2010
- Ricoh Company, Limited
- Natsumi Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus and image forming apparatus using same
- Patent number 7,792,472
- Issue date Sep 7, 2010
- Ricoh Company, Ltd.
- Tomoyuki Ichikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device including improved conveying device, process cart...
- Patent number 7,783,233
- Issue date Aug 24, 2010
- Ricoh Company, Ltd.
- Nobuo Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Stress-reduceable transport unit and image forming apparatus using...
- Patent number 7,729,642
- Issue date Jun 1, 2010
- Ricoh Company, Ltd.
- Junichi Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having an improved developer conveying system
- Patent number 7,636,536
- Issue date Dec 22, 2009
- Ricoh Company, Ltd.
- Nobuo Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
DEVELOPING APPARATUS AND IMAGE FORMING APPARATUS USING SAME
- Publication number 20120070195
- Publication date Mar 22, 2012
- Tomoyuki Ichikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20110268478
- Publication date Nov 3, 2011
- Tomoya Ohmura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20110182610
- Publication date Jul 28, 2011
- Tomoya OHMURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20110044726
- Publication date Feb 24, 2011
- Natsumi Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING APPARATUS AND IMAGE FORMING APPARATUS USING SAME
- Publication number 20100290815
- Publication date Nov 18, 2010
- Tomoyuki Ichikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20100061774
- Publication date Mar 11, 2010
- Nobuo Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE USING TWO-COMPONENT DEVELOPING AGENT AND IMAGE FO...
- Publication number 20090317106
- Publication date Dec 24, 2009
- Tomoya Ohmura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
- Publication number 20090123174
- Publication date May 14, 2009
- Nobuo Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING SYSTEM AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20090028611
- Publication date Jan 29, 2009
- Junichi Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20080298845
- Publication date Dec 4, 2008
- Tomoya Ohmura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING AGENT CIRCULATION SYSTEM AND IMAGE FORMING APPARATUS USI...
- Publication number 20080298866
- Publication date Dec 4, 2008
- Junichi Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20080298844
- Publication date Dec 4, 2008
- Natsumi KATOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, AND DEVELOPMENT DEVICE
- Publication number 20080226349
- Publication date Sep 18, 2008
- Nobuo Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20070274740
- Publication date Nov 29, 2007
- Natsumi Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE INCLUDING IMPROVED CONVEYING DEVICE, PROCESS CART...
- Publication number 20070264053
- Publication date Nov 15, 2007
- Nobuo Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING APPARATUS AND IMAGE FORMING APPARATUS USING SAME
- Publication number 20070166079
- Publication date Jul 19, 2007
- Tomoyuki Ichikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE FOR DEVELOPING LATENT IMAGES TO TONER IMAGES
- Publication number 20070154242
- Publication date Jul 5, 2007
- Junichi Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus having an improved developer conveying system
- Publication number 20070053723
- Publication date Mar 8, 2007
- Nobou Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Stress-reduceable transport unit and image forming apparatus using...
- Publication number 20070053721
- Publication date Mar 8, 2007
- Junichi Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Natsumi Katoh

Person

Patents Grantslast 30 patents

Development device and image forming apparatus

Development device and image forming apparatus

Developing apparatus and image forming apparatus using same

Developing device and image forming apparatus

Image forming apparatus and image forming method including transpor...

Developing apparatus and image forming apparatus using same

Developing agent circulation system and image forming apparatus usi...

Developing system and image forming apparatus incorporating same

Development device and image forming apparatus

Developing device including a stirring mechanism for a two-componen...

Development device and image forming apparatus

Developing device using two-component developing agent and image fo...

Developing device for developing latent images to toner images

Image forming apparatus, process cartridge, and development device

Developing device and image forming apparatus

Developing apparatus and image forming apparatus using same

Developing device including improved conveying device, process cart...

Stress-reduceable transport unit and image forming apparatus using...

Image forming apparatus having an improved developer conveying system

Patents Applicationslast 30 patents

DEVELOPING APPARATUS AND IMAGE FORMING APPARATUS USING SAME

DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS

DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS

DEVELOPING APPARATUS AND IMAGE FORMING APPARATUS USING SAME

DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS

DEVELOPING DEVICE USING TWO-COMPONENT DEVELOPING AGENT AND IMAGE FO...

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

DEVELOPING SYSTEM AND IMAGE FORMING APPARATUS INCORPORATING SAME

DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS

DEVELOPING AGENT CIRCULATION SYSTEM AND IMAGE FORMING APPARATUS USI...

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, AND DEVELOPMENT DEVICE

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS

DEVELOPING DEVICE INCLUDING IMPROVED CONVEYING DEVICE, PROCESS CART...

DEVELOPING APPARATUS AND IMAGE FORMING APPARATUS USING SAME

DEVELOPING DEVICE FOR DEVELOPING LATENT IMAGES TO TONER IMAGES

Image forming apparatus having an improved developer conveying system

Stress-reduceable transport unit and image forming apparatus using...