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Patents Grants
last 30 patents
Information
Patent Grant
Toner composition and method for manufacturing the toner composition
Patent number
8,187,784
Issue date
May 29, 2012
Ricoh Company Limited
Hiroshi Yamashita
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Toner, developer, image forming method, image forming apparatus, pr...
Patent number
8,137,883
Issue date
Mar 20, 2012
Ricoh Company Limited
Ryota Inoue
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, vessel with the toner, developer, image forming apparatus an...
Patent number
8,124,308
Issue date
Feb 28, 2012
Ricoh Company Ltd.
Naohiro Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, vessel with the toner, developer, image forming apparatus an...
Patent number
8,026,031
Issue date
Sep 27, 2011
Ricoh Company, Ltd.
Naohiro Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer, image forming method, image forming apparatus, pr...
Patent number
7,989,131
Issue date
Aug 2, 2011
Ricoh Company Limited
Ryota Inoue
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Dry toner and method of preparing same
Patent number
7,939,238
Issue date
May 10, 2011
Ricoh Company, Ltd.
Hiroshi Yamashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner and method for producing the same, and image-forming method u...
Patent number
7,932,007
Issue date
Apr 26, 2011
Ricoh Company, Ltd.
Hiroshi Yamashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner composition and method for manufacturing the toner composition
Patent number
7,879,523
Issue date
Feb 1, 2011
Ricoh Company Limited
Hiroshi Yamashita
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Toner and developer, toner container, process cartridge, image form...
Patent number
7,695,883
Issue date
Apr 13, 2010
Ricoh Company, Ltd.
Masahide Yamada
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic toner and method of preparing the toner
Patent number
7,666,566
Issue date
Feb 23, 2010
Ricoh Company, Ltd.
Shinji Ohtani
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner and developer using the toner
Patent number
7,666,563
Issue date
Feb 23, 2010
Ricoh Company Limited
Masahiro Ohki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer including the toner, and method for fixing toner i...
Patent number
7,563,555
Issue date
Jul 21, 2009
Ricoh Company Limited
Yohichiroh Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image-fixing method and image-fixing device, and, image-forming met...
Patent number
7,560,216
Issue date
Jul 14, 2009
Ricoh Company, Ltd.
Tsunemi Sugiyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner and production method of the same, and image forming method
Patent number
7,550,245
Issue date
Jun 23, 2009
Ricoh Company, Ltd.
Ryota Inoue
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer including the toner, and method for fixing toner i...
Patent number
7,541,128
Issue date
Jun 2, 2009
Ricoh Company Limited
Yohichiroh Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner and developer, toner container, process cartridge, image form...
Patent number
7,504,188
Issue date
Mar 17, 2009
Ricoh Company, Ltd.
Masahide Yamada
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner for developing electrostatic image
Patent number
7,435,521
Issue date
Oct 14, 2008
Ricoh Company, Ltd.
Shinichiro Yagi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Dry toner, method for manufacturing the same, image forming apparat...
Patent number
7,419,756
Issue date
Sep 2, 2008
Ricoh Company, Ltd.
Hiroshi Yamashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer including the toner, and method for fixing toner i...
Patent number
7,396,630
Issue date
Jul 8, 2008
Ricoh Company Limited
Yohichiroh Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method for preparing functional particulate organic material, toner...
Patent number
7,384,722
Issue date
Jun 10, 2008
Ricoh Company Limited
Shinji Ohtani
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner for electrophotography, method of manufacturing the toner, de...
Patent number
7,364,828
Issue date
Apr 29, 2008
Ricoh Company, Ltd.
Hiroshi Yamashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner composition and method for manufacturing the toner composition
Patent number
7,294,443
Issue date
Nov 13, 2007
Ricoh Company Limited
Hiroshi Yamashita
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Toner, method for preparing the toner, and image forming method and...
Patent number
7,241,548
Issue date
Jul 10, 2007
Ricoh Company Limited
Tsunemi Sugiyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, method of making, method of using
Patent number
7,198,874
Issue date
Apr 3, 2007
Ricoh Company, Ltd.,
Takuya Saito
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, method of making, method of using
Patent number
7,074,535
Issue date
Jul 11, 2006
Ricoh Company, Ltd.
Takuya Saito
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner for electrophotography, method of manufacturing the toner, de...
Patent number
7,074,541
Issue date
Jul 11, 2006
Ricoh Company, Ltd.
Hiroshi Yamashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner composition and method for manufacturing the toner composition
Patent number
7,005,223
Issue date
Feb 28, 2006
Ricoh Company Limited
Hiroshi Yamashita
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Toner for forming color image, image forming apparatus, and toner c...
Patent number
6,946,229
Issue date
Sep 20, 2005
Ricoh Company, Ltd.
Masanori Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, method of forming the toner, and image forming method and ap...
Patent number
6,852,462
Issue date
Feb 8, 2005
Ricoh Company Limited
Shigeru Emoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner for developing electrostatic image, method for manufacturing...
Patent number
6,849,369
Issue date
Feb 1, 2005
Ricoh Company, Limited
Shinichiro Yagi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
TONER, DEVELOPER, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, PR...
Publication number
20110223530
Publication date
Sep 15, 2011
Ryota Inoue
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, VESSEL WITH THE TONER, DEVELOPER, IMAGE FORMING APPARATUS AN...
Publication number
20110086308
Publication date
Apr 14, 2011
Naohiro WATANABE
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER COMPOSITION AND METHOD FOR MANUFACTURING THE TONER COMPOSITION
Publication number
20110045403
Publication date
Feb 24, 2011
Hiroshi Yamashita
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
TONER, METHOD FOR MANUFACTURING THE TONER, DEVELOPER INCLUDING THE...
Publication number
20110033203
Publication date
Feb 10, 2011
Yohichiroh Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DRY TONER AND METHOD OF PREPARING SAME
Publication number
20090162780
Publication date
Jun 25, 2009
Hiroshi Yamashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER COMPOSITION AND METHOD FOR MANUFACTURING THE TONER COMPOSITION
Publication number
20090155711
Publication date
Jun 18, 2009
Hiroshi Yamashita
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
TONER, VESSEL WITH THE TONER, DEVELOPER, IMAGE FORMING APPARATUS AN...
Publication number
20090155709
Publication date
Jun 18, 2009
Ricoh Company, Ltd.
Naohiro Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER AND DEVELOPER, TONER CONTAINER, PROCESS CARTRIDGE, IMAGE FORM...
Publication number
20090117480
Publication date
May 7, 2009
Masahide YAMADA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER AND DEVELOPER, TONER CONTAINER, PROCESS CARTRIDGE, IMAGE FORM...
Publication number
20080090165
Publication date
Apr 17, 2008
Masahide YAMADA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE
Publication number
20080032226
Publication date
Feb 7, 2008
Tsunemi Sugiyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DRY TONER, METHOD FOR MANUFACTURING THE SAME, IMAGE FORMING APPARAT...
Publication number
20070184370
Publication date
Aug 9, 2007
Hiroshi Yamashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner, developer, image forming method, image forming apparatus, pr...
Publication number
20070059626
Publication date
Mar 15, 2007
Ryota Inoue
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner and developer using the toner
Publication number
20070054210
Publication date
Mar 8, 2007
Masahiro Ohki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner, developer including the toner, and method for mixing toner i...
Publication number
20070031752
Publication date
Feb 8, 2007
Yohichiroh Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner composition and method for manufacturing the toner composition
Publication number
20060292482
Publication date
Dec 28, 2006
Hiroshi Yamashita
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Toner, developer including the toner, and method for fixing toner i...
Publication number
20060240349
Publication date
Oct 26, 2006
Yohichiroh Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner, developer, toner container, process cartridge, image forming...
Publication number
20060210903
Publication date
Sep 21, 2006
Masahiro Ohki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner, method of making, method of using
Publication number
20060172214
Publication date
Aug 3, 2006
Takuya Saito
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner and production method of the same, and image forming method
Publication number
20060160011
Publication date
Jul 20, 2006
Ryota Inoue
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner for electrophotography, method of manufacturing the toner, de...
Publication number
20060127788
Publication date
Jun 15, 2006
Hiroshi Yamashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner and method for producing the same, and image-forming method u...
Publication number
20060068312
Publication date
Mar 30, 2006
Hiroshi Yamashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image-fixing method and image-fixing device, and, image-forming met...
Publication number
20060056888
Publication date
Mar 16, 2006
Tsunemi Sugiyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Electrophotographic toner and method of preparing the toner
Publication number
20050196691
Publication date
Sep 8, 2005
Shinji Ohtani
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner for developing electrostatic image
Publication number
20050164114
Publication date
Jul 28, 2005
Shinichiro Yagi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner, method for manufacturing the toner, developer including the...
Publication number
20050079433
Publication date
Apr 14, 2005
Yohichiroh Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner, method for preparing the toner, and image forming method and...
Publication number
20050003288
Publication date
Jan 6, 2005
Tsunemi Sugiyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Method for preparing functional particulate organic material, toner...
Publication number
20040259013
Publication date
Dec 23, 2004
Shinji Ohtani
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner, method of making, method of using
Publication number
20040185365
Publication date
Sep 23, 2004
Takuya Saito
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner for electrophotography, method of manufacturing the toner, de...
Publication number
20040137344
Publication date
Jul 15, 2004
Hiroshi Yamashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner, developer including the toner, and method for fixing toner i...
Publication number
20040131961
Publication date
Jul 8, 2004
RICOH COMPANY LIMITED
Yohichiroh Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY