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Ebina, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Toner and production method thereof, image forming apparatus and im...
Patent number
7,759,036
Issue date
Jul 20, 2010
Ricoh Company, Ltd.
Tomoko Utsumi
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
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, image forming apparatus using the same and process cartridge
Patent number
7,522,857
Issue date
Apr 21, 2009
Ricoh Company, Ltd.
Kumi Hasegawa
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
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
Patents Applications
last 30 patents
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 and Production Method Thereof, Image Forming Apparatus and Im...
Publication number
20080096116
Publication date
Apr 24, 2008
Tomoko Utsumi
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
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
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
Image forming method, image forming apparatus, and process cartridge
Publication number
20060210908
Publication date
Sep 21, 2006
Kazuhiko Umemura
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
Electrophotography and image forming apparatus
Publication number
20060068313
Publication date
Mar 30, 2006
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner, image forming apparatus using the same and process cartridge
Publication number
20060063092
Publication date
Mar 23, 2006
Kumi Hasegawa
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 developer and image forming apparatus
Publication number
20050191575
Publication date
Sep 1, 2005
Hideki Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming method using toner
Publication number
20050089787
Publication date
Apr 28, 2005
Osamu Uchinokura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner, developer, image forming apparatus and image forming method
Publication number
20050089786
Publication date
Apr 28, 2005
Hideki Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner for developing electrostatic image, developer, image forming...
Publication number
20050026064
Publication date
Feb 3, 2005
Hideki Sugiura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner for electrophotography, and image forming process, process ca...
Publication number
20040229143
Publication date
Nov 18, 2004
Kazuhiko Umemura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY