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Shizuoka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Toner and method for producing toner
Patent number
9,625,848
Issue date
Apr 18, 2017
Ricoh Company, Ltd.
Yousuke Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrostatic image developing toner
Patent number
8,835,086
Issue date
Sep 16, 2014
Ricoh Company, Ltd.
Naohiro Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming method, image forming apparatus, and toner
Patent number
8,377,618
Issue date
Feb 19, 2013
Ricoh Company Limited
Hyo Shu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer, and image forming method
Patent number
8,084,176
Issue date
Dec 27, 2011
Ricoh Company, Ltd.
Yasuaki Iwamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method for manufacturing toner and toner
Patent number
8,034,526
Issue date
Oct 11, 2011
Ricoh Company Limited
Yohichiroh Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus, toner, and process cartridge
Patent number
8,012,659
Issue date
Sep 6, 2011
Ricoh Company Limited
Hyo Shu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, image forming apparatus using the same, image forming method...
Patent number
8,007,974
Issue date
Aug 30, 2011
Ricoh Company, Ltd.
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic image forming method
Patent number
7,901,861
Issue date
Mar 8, 2011
Ricoh Company Limited
Yasutada Shitara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus, image forming method and process cartridge
Patent number
7,892,718
Issue date
Feb 22, 2011
Ricoh Company, Ltd.
Yasuaki Iwamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus, image forming method, and process cartridge
Patent number
7,873,304
Issue date
Jan 18, 2011
Ricoh Company, Ltd.
Yasuaki Iwamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner and developer, and image forming apparatus, image forming met...
Patent number
7,862,973
Issue date
Jan 4, 2011
Ricoh Company, Ltd.
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer, image developer and image forming apparatus
Patent number
7,749,674
Issue date
Jul 6, 2010
Ricoh Company, Ltd.
Hideki Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus, image forming method, and process cartridge
Patent number
7,718,340
Issue date
May 18, 2010
Ricoh Company, Ltd.
Yasuaki Iwamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus, image forming method and process cartridge
Patent number
7,713,672
Issue date
May 11, 2010
Ricoh Company, Ltd.
Yohichiroh Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer, image forming apparatus and image forming method
Patent number
7,642,032
Issue date
Jan 5, 2010
Ricoh Company, Limited
Hideki Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer, toner container, process cartridge, image forming...
Patent number
7,566,521
Issue date
Jul 28, 2009
Ricoh Company, Ltd.
Akihiro Kotsugai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, and developer, image developer and image forming apparatus u...
Patent number
7,547,497
Issue date
Jun 16, 2009
Ricoh Company, Ltd.
Osamu Uchinokura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, and, developer, toner container, process cartridge, image fo...
Patent number
7,521,164
Issue date
Apr 21, 2009
Ricoh Company, Ltd.
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming method using toner
Patent number
7,442,484
Issue date
Oct 28, 2008
Ricoh Company Limited
Osamu Uchinokura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
External additives for electrophotographic toner, electrophotograph...
Patent number
7,413,838
Issue date
Aug 19, 2008
Ricoh Company, Ltd.
Hideki Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Resin particle and process of producing the same
Patent number
7,405,000
Issue date
Jul 29, 2008
Sanyo Chemical Industries, Ltd.
Tadao Takikawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Toner, and, developer, toner container, process cartridge, image fo...
Patent number
7,374,851
Issue date
May 20, 2008
Ricoh Company, Ltd.
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner for developing electrostatic image, developer, image forming...
Patent number
7,368,212
Issue date
May 6, 2008
Ricoh Company, Ltd.
Hideki Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer, toner container, process cartridge, image forming...
Patent number
7,318,989
Issue date
Jan 15, 2008
Ricoh Company, Ltd.
Akihiro Kotsugai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer, image developer and image forming apparatus
Patent number
7,288,353
Issue date
Oct 30, 2007
Ricoh Company, Ltd.
Hideki Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner for developing electrostatic images, developer, image forming...
Patent number
7,261,989
Issue date
Aug 28, 2007
Ricoh Company, Ltd.
Hideki Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner for electrophotography and image forming apparatus
Patent number
7,258,959
Issue date
Aug 21, 2007
Ricoh Company, Ltd.
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner for electrophotography, and image forming process, process ca...
Patent number
7,172,844
Issue date
Feb 6, 2007
Ricoh Company, Ltd.
Kazuhiko Umemura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer, image forming apparatus, process cartridge and im...
Patent number
7,169,525
Issue date
Jan 30, 2007
Ricoh Company, Ltd.
Hideki Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer, image developing apparatus, and image forming app...
Patent number
7,166,403
Issue date
Jan 23, 2007
Ricoh Company, Ltd.
Tomoyuki Ichikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
TONER, TONER STORAGE UNIT, AND IMAGE FORMING APPARATUS
Publication number
20200026210
Publication date
Jan 23, 2020
Yu HIRAI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
BLACK TONER FOR DEVELOPING LATENT ELECTROSTATIC IMAGE AND METHOD FO...
Publication number
20150030976
Publication date
Jan 29, 2015
Kei Yokokawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER AND METHOD FOR PRODUCING TONER
Publication number
20140072911
Publication date
Mar 13, 2014
Yousuke SUZUKI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROSTATIC IMAGE DEVELOPING TONER
Publication number
20120264043
Publication date
Oct 18, 2012
Naohiro Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPER, TONER CONTAINER, PROCESS CARTRIDGE AND IMAGE FORM...
Publication number
20110255899
Publication date
Oct 20, 2011
RICOH COMPANY, LTD.
Yasuaki Iwamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC IMAGE FORMING METHOD AND APPARATUS
Publication number
20110091245
Publication date
Apr 21, 2011
Yasutada Shitara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, METHOD FOR PRODUCING THE SAME, AND PROCESS CARTRIDGE
Publication number
20110033794
Publication date
Feb 10, 2011
Naohiro WATANABE
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPER, AND IMAGE FORMING METHOD
Publication number
20090297973
Publication date
Dec 3, 2009
Yasuaki Iwamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND PROCESS CARTRIDGE
Publication number
20090175658
Publication date
Jul 9, 2009
RICOH COMPANY, LTD.
Yasuaki Iwamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS, TONER, AND PROCESS CARTRIDGE
Publication number
20090155706
Publication date
Jun 18, 2009
Hyo SHU
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC IMAGE FORMING METHOD AND APPARATUS
Publication number
20090142677
Publication date
Jun 4, 2009
Yasutada Shitara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND TONER
Publication number
20090075195
Publication date
Mar 19, 2009
Hyo SHU
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, AND, DEVELOPER, TONER CONTAINER, PROCESS CARTRIDGE, IMAGE FO...
Publication number
20080268366
Publication date
Oct 30, 2008
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, IMAGE FORMING APPARATUS USING THE SAME, IMAGE FORMING METHOD...
Publication number
20080261131
Publication date
Oct 23, 2008
Shinya NAKAYAMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER AND DEVELOPER, AND IMAGE FORMING APPARATUS, IMAGE FORMING MET...
Publication number
20080118855
Publication date
May 22, 2008
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
METHOD FOR MANUFACTURING TONER AND TONER
Publication number
20080063971
Publication date
Mar 13, 2008
Yohichiroh WATANABE
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPER, TONER CONTAINER, PROCESS CARTRIDGE, IMAGE FORMING...
Publication number
20080014527
Publication date
Jan 17, 2008
Akihiro Kotsugai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS, IMAGE FORMING METHOD AND PROCESS CARTRIDGE
Publication number
20070281236
Publication date
Dec 6, 2007
Yohichiroh Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND PROCESS CARTRIDGE
Publication number
20070281237
Publication date
Dec 6, 2007
Yasuaki IWAMOTO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPER, IMAGE DEVELOPER AND IMAGE FORMING APPARATUS
Publication number
20070275318
Publication date
Nov 29, 2007
Hideki Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS, IMAGE FORMING METHOD AND PROCESS CARTRIDGE
Publication number
20070248380
Publication date
Oct 25, 2007
Yasuaki IWAMOTO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner, developer, toner container, process cartridge, image forming...
Publication number
20070031748
Publication date
Feb 8, 2007
Akihiro Kotsugai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner for developing electrostatic images, developer, image forming...
Publication number
20060240351
Publication date
Oct 26, 2006
Hideki Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner, and, developer, toner container, process cartridge, image fo...
Publication number
20060204883
Publication date
Sep 14, 2006
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Resin particle and process of producing the same
Publication number
20060165989
Publication date
Jul 27, 2006
Sanyo Chemical Industries, Ltd.
Tadao Takikawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Electrophotography and image forming apparatus
Publication number
20060068313
Publication date
Mar 30, 2006
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner, developer, image forming apparatus, process cartridge and im...
Publication number
20060040194
Publication date
Feb 23, 2006
Hideki Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner, developer, image developing apparatus, and image forming app...
Publication number
20050255399
Publication date
Nov 17, 2005
Tomoyuki Ichikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner, and developer, image developer and image forming apparatus u...
Publication number
20050208408
Publication date
Sep 22, 2005
Osamu Uchinokura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner, developer, image developer and image forming apparatus
Publication number
20050191575
Publication date
Sep 1, 2005
Hideki Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY