Hideaki Yasunaga

Person

Osaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Composition for seamless belt, and image forming apparatus using th...
- Patent number 10,001,731
- Issue date Jun 19, 2018
- Ricoh Company, Ltd.
- Makoto Matsushita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing roller, process cartridge, image forming apparatus and i...
- Patent number 9,983,505
- Issue date May 29, 2018
- Ricoh Company, Ltd.
- Hideaki Yasunaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Semiconductive resin composition, member for electrophotography and...
- Patent number 9,921,526
- Issue date Mar 20, 2018
- Ricoh Company, Ltd.
- Hiroaki Takahashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Semiconductive resin composition, member for electrophotography and...
- Patent number 9,891,558
- Issue date Feb 13, 2018
- Ricoh Company, Ltd.
- Makoto Matsushita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing roller, toner and image forming apparatus
- Patent number 9,851,656
- Issue date Dec 26, 2017
- Ricoh Company, Ltd.
- Keiichiro Juri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,778,602
- Issue date Oct 3, 2017
- Ricoh Company, Ltd.
- Keiichiro Juri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Intermediate transfer belt
- Patent number 9,720,354
- Issue date Aug 1, 2017
- Ricoh Company, Ltd.
- Keiichiro Juri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Intermediate transfer belt, and image forming apparatus using the belt
- Patent number 9,625,858
- Issue date Apr 18, 2017
- Ricoh Company, Ltd.
- Akira Izutani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, process cartridge, image forming apparatus, and...
- Patent number 9,122,204
- Issue date Sep 1, 2015
- Ricoh Company, Ltd.
- Keiichiro Juri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing roller, developing device, process cartridge, and image...
- Patent number 9,098,013
- Issue date Aug 4, 2015
- Ricoh Company, Ltd.
- Hideaki Yasunaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing roller including a roughened outermost surface, and deve...
- Patent number 9,031,478
- Issue date May 12, 2015
- Ricoh Company, Ltd.
- Keiichiro Juri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing roller, and developing device, process cartridge and ima...
- Patent number 9,026,015
- Issue date May 5, 2015
- Ricoh Company, Ltd.
- Keiichiro Juri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image developer, process cartridge, and image forming apparatus
- Patent number 8,526,864
- Issue date Sep 3, 2013
- Ricoh Company, Ltd.
- Shuuichi Nakagawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for non-magnetic one-component developer, method of preparing...
- Patent number 8,329,371
- Issue date Dec 11, 2012
- Ricoh Company, Ltd.
- Yoshihiro Mikuriya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming method, image forming apparatus and process cartridge
- Patent number 8,192,910
- Issue date Jun 5, 2012
- Ricoh Company, Limited
- Hiroaki Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, and image forming method and process cartridge u...
- Patent number 8,103,199
- Issue date Jan 24, 2012
- Ricoh Company Limited
- Hideaki Yasunaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner and image forming method
- Patent number 8,053,154
- Issue date Nov 8, 2011
- Ricoh Company, Ltd.
- Takuya Kadota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Pulverized toner
- Patent number 8,043,779
- Issue date Oct 25, 2011
- Ricoh Company, Ltd.
- Hideaki Yasunaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image developer using one-component developer
- Patent number 8,041,270
- Issue date Oct 18, 2011
- Ricoh Company, Limited
- Hideaki Yasunaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner, and oilless fixing method and process cartridge using the toner
- Patent number 8,021,814
- Issue date Sep 20, 2011
- Ricoh Company Limited
- Masayuki Hagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Full-color toner kit, process cartridge, and image forming method
- Patent number 8,007,973
- Issue date Aug 30, 2011
- Ricoh Company, Limited
- Kazuoki Fuwa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner, developer including the toner, and image forming method and...
- Patent number 7,981,593
- Issue date Jul 19, 2011
- Ricoh Company Limited
- Hiroaki Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image forming method
- Patent number 7,979,010
- Issue date Jul 12, 2011
- Ricoh Company, Ltd.
- Kazuoki Fuwa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, developer therefor, and image forming method and...
- Patent number 7,970,323
- Issue date Jun 28, 2011
- Ricoh Company, Ltd.
- Hiroaki Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Single component development device, process cartridge and toner
- Patent number 7,873,300
- Issue date Jan 18, 2011
- Ricoh Company Limited
- Kazuoki Fuwa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Non-magnetic toner for one-component development and method of prep...
- Patent number 7,867,680
- Issue date Jan 11, 2011
- Ricoh Company Limited
- Yoshihiro Mikuriya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner and image forming method using the toner
- Patent number 7,838,193
- Issue date Nov 23, 2010
- Ricoh Company Limited
- Masayuki Hagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner and method for producing the same, toner kit, and developer,...
- Patent number 7,833,686
- Issue date Nov 16, 2010
- Ricoh Company, Ltd.
- Takuya Kadota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner recovery apparatus, process cartridge, and image forming appa...
- Patent number 7,820,348
- Issue date Oct 26, 2010
- Ricoh Company, Ltd.
- Masayuki Hagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device, image developing method, image forming apparatus...
- Patent number 7,817,946
- Issue date Oct 19, 2010
- Ricoh Company, Ltd.
- Hiroyuki Murakami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
DEVELOPING ROLLER, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS AND I...
- Publication number 20170219954
- Publication date Aug 3, 2017
- RICOH COMPANY, LTD.
- Hideaki YASUNAGA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
DEVELOPING ROLLER, TONER AND IMAGE FORMING APPARATUS
- Publication number 20160274489
- Publication date Sep 22, 2016
- RICOH COMPANY, LTD.
- Keiichiro JURI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160274500
- Publication date Sep 22, 2016
- RICOH COMPANY, LTD.
- Keiichiro JURI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
INTERMEDIATE TRANSFER BELT, AND IMAGE FORMING APPARATUS USING THE BELT
- Publication number 20160259273
- Publication date Sep 8, 2016
- RICOH COMPANY, LTD.
- Akira IZUTANI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SEMICONDUCTIVE RESIN COMPOSITION, MEMBER FOR ELECTROPHOTOGRAPHY AND...
- Publication number 20160202638
- Publication date Jul 14, 2016
- RICOH COMPANY, LTD.
- Hiroaki Takahashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTIVE RESIN COMPOSITION, MEMBER FOR ELECTROPHOTOGRAPHY AND...
- Publication number 20160202639
- Publication date Jul 14, 2016
- RICOH COMPANY, LTD.
- Makoto Matsushita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COMPOSITION FOR SEAMLESS BELT, AND IMAGE FORMING APPARATUS USING TH...
- Publication number 20160187816
- Publication date Jun 30, 2016
- RICOH COMPANY, LTD.
- Makoto Matsushita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
INTERMEDIATE TRANSFER BELT
- Publication number 20160004191
- Publication date Jan 7, 2016
- RICOH COMPANY, LTD.
- Keiichiro Juri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20150078790
- Publication date Mar 19, 2015
- Yoshimichi ISHIKAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND...
- Publication number 20150078777
- Publication date Mar 19, 2015
- Keiichiro Juri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING ROLLER, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE...
- Publication number 20140321888
- Publication date Oct 30, 2014
- RICOH COMPANY, LTD.
- Hideaki Yasunaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING ROLLER, AND DEVELOPING DEVICE, PROCESS CARTRIDGE AND IMA...
- Publication number 20140212184
- Publication date Jul 31, 2014
- RICOH COMPANY, LTD.
- Keiichiro Juri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING ROLLER, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20130058685
- Publication date Mar 7, 2013
- Keiichiro JURI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING ROLLER
- Publication number 20120237270
- Publication date Sep 20, 2012
- Keiichiro JURI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE DEVELOPER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20110243616
- Publication date Oct 6, 2011
- RICOH COMPANY, LTD.
- Shuuichi NAKAGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER RECOVERY APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPA...
- Publication number 20100167196
- Publication date Jul 1, 2010
- Masayuki Hagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING METHOD, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE
- Publication number 20100009282
- Publication date Jan 14, 2010
- Hiroaki KATOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
NON-MAGNETIC TONER FOR ONE-COMPONENT DEVELOPMENT AND METHOD OF PREP...
- Publication number 20090186291
- Publication date Jul 23, 2009
- Yoshihiro Mikuriya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
- Publication number 20090169270
- Publication date Jul 2, 2009
- Kazuoki FUWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER FOR ONE-COMPONENT DEVELOPER
- Publication number 20090117481
- Publication date May 7, 2009
- Hideaki Yasunaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS, PROCESS CARTRIDGE AND TONER
- Publication number 20090052952
- Publication date Feb 26, 2009
- Hiroaki KATOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SINGLE COMPONENT DEVELOPMENT DEVICE, PROCESS CARTRIDGE AND TONER
- Publication number 20090041511
- Publication date Feb 12, 2009
- KAZUOKI FUWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, DEVELOPER THEREFOR, AND IMAGE FORMING METHOD AND...
- Publication number 20080304875
- Publication date Dec 11, 2008
- RICOH COMPANY, LTD.
- Hiroaki Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
One-component toner and image forming method
- Publication number 20080279591
- Publication date Nov 13, 2008
- Hideaki Yasunaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER, AND OILLESS FIXING METHOD AND PROCESS CARTRIDGE USING THE TONER
- Publication number 20080233506
- Publication date Sep 25, 2008
- Masayuki Hagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING METHOD USING ONE COMPONENT DEVE...
- Publication number 20080227009
- Publication date Sep 18, 2008
- Kazuoki FUWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE DEVELOPER USING ONE-COMPONENT DEVELOPER
- Publication number 20080226356
- Publication date Sep 18, 2008
- Hideaki YASUNAGA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER RECOVERY APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPA...
- Publication number 20080199234
- Publication date Aug 21, 2008
- Masayuki HAGI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developing device, and image forming method and process cartridge u...
- Publication number 20080175630
- Publication date Jul 24, 2008
- Hideaki Yasunaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FULL-COLOR TONER KIT, PROCESS CARTRIDGE, AND IMAGE FORMING METHOD
- Publication number 20080159777
- Publication date Jul 3, 2008
- Kazuoki Fuwa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Hideaki Yasunaga

Person

Patents Grantslast 30 patents

Composition for seamless belt, and image forming apparatus using th...

Developing roller, process cartridge, image forming apparatus and i...

Semiconductive resin composition, member for electrophotography and...

Semiconductive resin composition, member for electrophotography and...

Developing roller, toner and image forming apparatus

Image forming apparatus

Intermediate transfer belt

Intermediate transfer belt, and image forming apparatus using the belt

Developing device, process cartridge, image forming apparatus, and...

Developing roller, developing device, process cartridge, and image...

Developing roller including a roughened outermost surface, and deve...

Developing roller, and developing device, process cartridge and ima...

Image developer, process cartridge, and image forming apparatus

Toner for non-magnetic one-component developer, method of preparing...

Image forming method, image forming apparatus and process cartridge

Developing device, and image forming method and process cartridge u...

Toner and image forming method

Pulverized toner

Image developer using one-component developer

Toner, and oilless fixing method and process cartridge using the toner

Full-color toner kit, process cartridge, and image forming method

Toner, developer including the toner, and image forming method and...

Image forming apparatus and image forming method

Developing device, developer therefor, and image forming method and...

Single component development device, process cartridge and toner

Non-magnetic toner for one-component development and method of prep...

Toner and image forming method using the toner

Toner and method for producing the same, toner kit, and developer,...

Toner recovery apparatus, process cartridge, and image forming appa...

Developing device, image developing method, image forming apparatus...

Patents Applicationslast 30 patents

DEVELOPING ROLLER, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS AND I...

DEVELOPING ROLLER, TONER AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

INTERMEDIATE TRANSFER BELT, AND IMAGE FORMING APPARATUS USING THE BELT

SEMICONDUCTIVE RESIN COMPOSITION, MEMBER FOR ELECTROPHOTOGRAPHY AND...

SEMICONDUCTIVE RESIN COMPOSITION, MEMBER FOR ELECTROPHOTOGRAPHY AND...

COMPOSITION FOR SEAMLESS BELT, AND IMAGE FORMING APPARATUS USING TH...

INTERMEDIATE TRANSFER BELT

DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

DEVELOPING DEVICE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND...

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

DEVELOPING ROLLER, AND DEVELOPING DEVICE, PROCESS CARTRIDGE AND IMA...

DEVELOPING ROLLER, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS

DEVELOPING ROLLER

IMAGE DEVELOPER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

TONER RECOVERY APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPA...

IMAGE FORMING METHOD, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE

NON-MAGNETIC TONER FOR ONE-COMPONENT DEVELOPMENT AND METHOD OF PREP...

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

TONER FOR ONE-COMPONENT DEVELOPER

IMAGE FORMING APPARATUS, PROCESS CARTRIDGE AND TONER

SINGLE COMPONENT DEVELOPMENT DEVICE, PROCESS CARTRIDGE AND TONER

DEVELOPING DEVICE, DEVELOPER THEREFOR, AND IMAGE FORMING METHOD AND...

One-component toner and image forming method

TONER, AND OILLESS FIXING METHOD AND PROCESS CARTRIDGE USING THE TONER

DEVELOPING DEVICE AND IMAGE FORMING METHOD USING ONE COMPONENT DEVE...

IMAGE DEVELOPER USING ONE-COMPONENT DEVELOPER

TONER RECOVERY APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPA...

Developing device, and image forming method and process cartridge u...

FULL-COLOR TONER KIT, PROCESS CARTRIDGE, AND IMAGE FORMING METHOD