Tsutomu Katoh

Person

Kawasaki City, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Belt unit and image forming apparatus employing same
- Patent number 8,929,774
- Issue date Jan 6, 2015
- Ricoh Company, Ltd.
- Tsutomu Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Lubricant coating device and image forming apparatus incorporating...
- Patent number 8,583,022
- Issue date Nov 12, 2013
- Ricoh Company, Ltd.
- Yohhei Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus utilizing both a transfer belt and a direct...
- Patent number 8,315,545
- Issue date Nov 20, 2012
- Ricoh Company, Ltd.
- Kazuhisa Sudo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,249,468
- Issue date Aug 21, 2012
- Ricoh Company, Ltd.
- Kazuosa Kuma
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Image forming apparatus capable of effectively performing a mainten...
- Patent number 8,219,000
- Issue date Jul 10, 2012
- Ricoh Company, Ltd.
- Kazuosa Kuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,139,968
- Issue date Mar 20, 2012
- Ricoh Company, Ltd.
- Tsutomu Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Lubricant applying device and image forming apparatus
- Patent number 7,933,546
- Issue date Apr 26, 2011
- Ricoh Company, Ltd.
- Takeshi Fukao
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and guide therefor capable of reducing tone...
- Patent number 7,899,386
- Issue date Mar 1, 2011
- Ricoh Co., Ltd.
- Kazuchika Saeki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Transfer assembly and image forming apparatus including same
- Patent number 7,885,588
- Issue date Feb 8, 2011
- Ricoh Company Limited
- Tsutomu Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Neutralization unit and image forming apparatus having a neutraliza...
- Patent number 7,848,692
- Issue date Dec 7, 2010
- Ricoh Co., Ltd.
- Kazuchika Saeki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus capable of providing a stable belt movement...
- Patent number 7,627,268
- Issue date Dec 1, 2009
- Ricoh Co., Ltd.
- Tsutomu Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Transfer unit and image forming apparatus
- Patent number 7,609,998
- Issue date Oct 27, 2009
- Ricoh Company, Ltd.
- Tsutomu Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus, process cartridge, developing unit, and im...
- Patent number 7,522,850
- Issue date Apr 21, 2009
- Ricoh Company, Ltd.
- Kazuhito Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and belt unit
- Patent number 7,509,073
- Issue date Mar 24, 2009
- Ricoh Co., Ltd.
- Tsutomu Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Belt device including an annular belt, and an image forming apparat...
- Patent number 7,499,665
- Issue date Mar 3, 2009
- Ricoh Company, Ltd.
- Kazuosa Kuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge including at least one replaceable member and ima...
- Patent number 7,493,061
- Issue date Feb 17, 2009
- Ricoh Company, Ltd.
- Satoshi Hatori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Unit supporting device and image forming apparatus
- Patent number 7,302,208
- Issue date Nov 27, 2007
- Ricoh Company, Limited
- Masaaki Tsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming method and apparatus with a transfer belt
- Patent number 7,274,897
- Issue date Sep 25, 2007
- Ricoh Company, Ltd.
- Tsutomu Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus, process cartridge, developing unit, and im...
- Patent number 7,158,730
- Issue date Jan 2, 2007
- Ricoh Company, Ltd.
- Kazuhito Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Liquid jet recording head having controller for controlling tempera...
- Patent number 6,598,952
- Issue date Jul 29, 2003
- Canon Kabushiki Kaisha
- Hiroyuki Ishinaga
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Recording apparatus having abnormality determination based on tempe...
- Patent number 6,505,907
- Issue date Jan 14, 2003
- Canon Kabushiki Kaisha
- Hiroyuki Ishinaga
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Substrate having a built-in temperature detecting element, and ink...
- Patent number 6,234,599
- Issue date May 22, 2001
- Canon Kabushiki Kaisha
- Hiroyuki Ishinaga
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Toner sorting device for separating reusable toner from used toner...
- Patent number 5,950,062
- Issue date Sep 7, 1999
- Ricoh Co., Ltd.
- Masasumi Yahata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Ink jet substrate including plural temperature sensors and heaters
- Patent number 5,175,565
- Issue date Dec 29, 1992
- Canon Kabushiki Kaisha
- Hiroyuki Ishinaga
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
IMAGE FORMING APPARATUS AND GUIDE THEREFOR CAPABLE OF REDUCING TONE...
- Publication number 20130177341
- Publication date Jul 11, 2013
- Kazuchika SAEKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
BELT UNIT AND IMAGE FORMING APPARATUS EMPLOYING SAME
- Publication number 20120148300
- Publication date Jun 14, 2012
- RICOH COMPANY, LTD.
- Tsutomu Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
LUBRICANT COATING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING...
- Publication number 20110222938
- Publication date Sep 15, 2011
- Yohhei Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND CONTROL METHOD FOR SAME
- Publication number 20100061752
- Publication date Mar 11, 2010
- Kazuhisa SUDO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20090317104
- Publication date Dec 24, 2009
- Tsutomu KATOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20090279906
- Publication date Nov 12, 2009
- Kazuosa KUMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
LUBRICANT APPLYING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20090169236
- Publication date Jul 2, 2009
- Takeshi Fukao
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TRANSFER ASSEMBLY AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20080175619
- Publication date Jul 24, 2008
- Tsutomu KATOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Surface-moving-body driving device, belt device, and image forming...
- Publication number 20080145102
- Publication date Jun 19, 2008
- Ricoh Company, Limited
- Tsutomu Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TRANSFER UNIT AND IMAGE FORMING APPARATUS
- Publication number 20070286640
- Publication date Dec 13, 2007
- Tsutomu KATOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS WITH SHEET GUIDING UNIT BETWEEN TRANSFERING...
- Publication number 20070248391
- Publication date Oct 25, 2007
- Nobuto Yokokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS CAPABLE OF EFFECTIVELY PERFORMING A MAINTEN...
- Publication number 20070127947
- Publication date Jun 7, 2007
- Kazuosa KUMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS CAPABLE OF PROVIDING A STABLE BELT MOVEMENT...
- Publication number 20070127955
- Publication date Jun 7, 2007
- Tsutomu Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, DEVELOPING UNIT, AND IM...
- Publication number 20070071499
- Publication date Mar 29, 2007
- Kazuhito Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Neutralization unit and image forming apparatus having a neutraliza...
- Publication number 20060284958
- Publication date Dec 21, 2006
- Kazuchika Saeki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus and belt unit
- Publication number 20060210307
- Publication date Sep 21, 2006
- Tsutomu Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Belt device and image forming apparatus
- Publication number 20060210324
- Publication date Sep 21, 2006
- Kazuosa Kuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Process cartridge and image forming apparatus
- Publication number 20060045603
- Publication date Mar 2, 2006
- Satoshi Hatori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Unit supporting device and image forming apparatus
- Publication number 20050231821
- Publication date Oct 20, 2005
- Masaaki Tsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming method and apparatus
- Publication number 20050169667
- Publication date Aug 4, 2005
- Tsutomu Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus, process cartridge, developing unit, and im...
- Publication number 20050063713
- Publication date Mar 24, 2005
- Kazuhito Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
RECORDING APPARATUS HAVING ABNORMALITY DETERMINATION BASED ON TEMPE...
- Publication number 20020149657
- Publication date Oct 17, 2002
- Hiroyuki Ishinaga
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Liquid jet recording substrate, recording head and apparatus using...
- Publication number 20010004263
- Publication date Jun 21, 2001
- Hiroyuki Ishinaga
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Tsutomu Katoh

Person

Patents Grantslast 30 patents

Belt unit and image forming apparatus employing same

Lubricant coating device and image forming apparatus incorporating...

Image forming apparatus utilizing both a transfer belt and a direct...

Image forming apparatus

Image forming apparatus capable of effectively performing a mainten...

Image forming apparatus

Lubricant applying device and image forming apparatus

Image forming apparatus and guide therefor capable of reducing tone...

Transfer assembly and image forming apparatus including same

Neutralization unit and image forming apparatus having a neutraliza...

Image forming apparatus capable of providing a stable belt movement...

Transfer unit and image forming apparatus

Image forming apparatus, process cartridge, developing unit, and im...

Image forming apparatus and belt unit

Belt device including an annular belt, and an image forming apparat...

Process cartridge including at least one replaceable member and ima...

Unit supporting device and image forming apparatus

Image forming method and apparatus with a transfer belt

Image forming apparatus, process cartridge, developing unit, and im...

Liquid jet recording head having controller for controlling tempera...

Recording apparatus having abnormality determination based on tempe...

Substrate having a built-in temperature detecting element, and ink...

Toner sorting device for separating reusable toner from used toner...

Ink jet substrate including plural temperature sensors and heaters

Patents Applicationslast 30 patents

IMAGE FORMING APPARATUS AND GUIDE THEREFOR CAPABLE OF REDUCING TONE...

BELT UNIT AND IMAGE FORMING APPARATUS EMPLOYING SAME

LUBRICANT COATING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING...

IMAGE FORMING APPARATUS AND CONTROL METHOD FOR SAME

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

LUBRICANT APPLYING DEVICE AND IMAGE FORMING APPARATUS

TRANSFER ASSEMBLY AND IMAGE FORMING APPARATUS INCLUDING SAME

Surface-moving-body driving device, belt device, and image forming...

TRANSFER UNIT AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS WITH SHEET GUIDING UNIT BETWEEN TRANSFERING...

IMAGE FORMING APPARATUS CAPABLE OF EFFECTIVELY PERFORMING A MAINTEN...

IMAGE FORMING APPARATUS CAPABLE OF PROVIDING A STABLE BELT MOVEMENT...

IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, DEVELOPING UNIT, AND IM...

Neutralization unit and image forming apparatus having a neutraliza...

Image forming apparatus and belt unit

Belt device and image forming apparatus

Process cartridge and image forming apparatus

Unit supporting device and image forming apparatus

Image forming method and apparatus

Image forming apparatus, process cartridge, developing unit, and im...

RECORDING APPARATUS HAVING ABNORMALITY DETERMINATION BASED ON TEMPE...

Liquid jet recording substrate, recording head and apparatus using...