Membership
Tour
Register
Log in
Akihiro Kotsugai
Follow
Person
Numazu, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Toner for developing latent electrostatic image, two-component deve...
Patent number
8,771,914
Issue date
Jul 8, 2014
Ricoh Company, Ltd.
Akihiro Kotsugai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming toner, image forming apparatus, image forming method,...
Patent number
8,741,520
Issue date
Jun 3, 2014
Ricoh Company, Ltd.
Toyoshi Sawada
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrostatic image developing toner, developer, image forming appa...
Patent number
8,691,486
Issue date
Apr 8, 2014
Ricoh Company, Ltd.
Ryota Inoue
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer, and image forming method
Patent number
8,679,714
Issue date
Mar 25, 2014
Ricoh Company, Ltd.
Ryota Inoue
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, color toner set, developer, process cartridge, and image for...
Patent number
8,632,932
Issue date
Jan 21, 2014
Ricoh Company, Limited
Akiyoshi Sabu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer, image forming method and image forming apparatus
Patent number
8,623,580
Issue date
Jan 7, 2014
Ricoh Company, Ltd.
Yukiko Nakajima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, and developer, toner cartridge, image forming apparatus, pro...
Patent number
8,603,713
Issue date
Dec 10, 2013
Ricoh Company, Limited
Akihiro Kotsugai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer, and image forming method and apparatus using the...
Patent number
8,383,307
Issue date
Feb 26, 2013
Ricoh Company, Limited
Ryota Inoue
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, image forming apparatus, image forming method, and process c...
Patent number
8,329,370
Issue date
Dec 11, 2012
Ricoh Company, Ltd.
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier, production method thereof, developer and image forming method
Patent number
8,329,374
Issue date
Dec 11, 2012
Ricoh Company, Ltd.
Ryota Inoue
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier for electrophotography and two-component developer
Patent number
8,263,302
Issue date
Sep 11, 2012
Ricoh Company, Ltd.
Yoshihiro Moriya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, image forming apparatus, image forming method, and process c...
Patent number
8,114,560
Issue date
Feb 14, 2012
Ricoh Company, Ltd.
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, as well as image forming apparatus and image forming method...
Patent number
8,017,292
Issue date
Sep 13, 2011
Ricoh Company, Ltd.
Akiyoshi Sabu
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
Image forming apparatus, image forming method, and process cartridge
Patent number
7,960,083
Issue date
Jun 14, 2011
Ricoh Company, Ltd.
Shinya Nakayama
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, method of preparing the toner, and developer, image forming...
Patent number
7,709,174
Issue date
May 4, 2010
Ricoh Company Limited
Tsuyoshi Sugimoto
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
Image forming method and image forming apparatus
Patent number
7,608,377
Issue date
Oct 27, 2009
Ricoh Company, Ltd.
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner for developing electrostatic latent image, developer using th...
Patent number
7,608,373
Issue date
Oct 27, 2009
Ricoh Company, Ltd.
Akihiro Kotsugai
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
Toner, developer, toner container, process cartridge, image forming...
Patent number
7,455,942
Issue date
Nov 25, 2008
Ricoh Company, Ltd.
Tsuneyasu Nagatomo
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 and fixing device and image forming device using the same
Patent number
7,368,213
Issue date
May 6, 2008
Ricoh Company, Limited
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier for developer for developing electrostatic latent image, de...
Patent number
7,320,852
Issue date
Jan 22, 2008
Ricoh Company, Ltd.
Akihiro Kotsugai
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
Patents Applications
last 30 patents
Information
Patent Application
CONDUCTIVE DIAMOND PARTICLES, CONDUCTIVE DIAMOND ELECTRODE, AND TES...
Publication number
20190264322
Publication date
Aug 29, 2019
Takeshi KONDO
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
IMAGE FORMING TONER, IMAGE FORMING APPARATUS, IMAGE FORMING METHOD,...
Publication number
20110129775
Publication date
Jun 2, 2011
Toyoshi Sawada
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
METHOD FOR PRODUCTION TONER, TONER, AND METHOD FOR RECYCLING PAPER
Publication number
20110124838
Publication date
May 26, 2011
Akihiro Kotsugai
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
TONER, DEVELOPER, IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS
Publication number
20110104608
Publication date
May 5, 2011
Yukiko Nakajima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPER, AND IMAGE FORMING METHOD
Publication number
20110065036
Publication date
Mar 17, 2011
Ryota Inoue
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROSTATIC IMAGE DEVELOPING TONER, DEVELOPER, IMAGE FORMING APPA...
Publication number
20100330489
Publication date
Dec 30, 2010
Ryota INOUE
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, AND DEVELOPER, TONER CARTRIDGE, IMAGE FORMING APPARATUS, PRO...
Publication number
20100216068
Publication date
Aug 26, 2010
Akihiro KOTSUGAI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, COLOR TONER SET, DEVELOPER, PROCESS CARTRIDGE, AND IMAGE FOR...
Publication number
20100183967
Publication date
Jul 22, 2010
Akiyoshi Sabu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPER, AND IMAGE FORMING METHOD AND APPARATUS USING THE...
Publication number
20100104965
Publication date
Apr 29, 2010
Ryota INOUE
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR ELECTROPHOTOGRAPHY AND TWO-COMPONENT DEVELOPER
Publication number
20100061759
Publication date
Mar 11, 2010
RICOH COMPANY, LTD.
Yoshihiro MORIYA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER, TWO-COMPONENT DEVELOPER CONTAINING CARRIER AND TONER, AND...
Publication number
20090202935
Publication date
Aug 13, 2009
Yoshihiro Moriya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER, PRODUCTION METHOD THEREOF, DEVELOPER AND IMAGE FORMING METHOD
Publication number
20090186292
Publication date
Jul 23, 2009
Ryota Inoue
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND PROCESS C...
Publication number
20090103950
Publication date
Apr 23, 2009
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPER, AND IMAGE FORMING APPARATUS
Publication number
20090003885
Publication date
Jan 1, 2009
Akiyoshi Sabu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND PROCESS CARTRIDGE
Publication number
20080318143
Publication date
Dec 25, 2008
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND PROCESS C...
Publication number
20080280219
Publication date
Nov 13, 2008
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, AS WELL AS IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD...
Publication number
20080280218
Publication date
Nov 13, 2008
Akiyoshi Sabu
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 FOR DEVELOPING LATENT ELECTROSTATIC IMAGE, TWO-COMPONENT DEVE...
Publication number
20080233496
Publication date
Sep 25, 2008
Akihiro KOTSUGAI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPER, AND IMAGE FORMING METHOD
Publication number
20080227002
Publication date
Sep 18, 2008
Yoshihiro Moriya
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
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, TONER-CONTAINING CONTAINER, PROCESS CARTRIDGE, IM...
Publication number
20070190444
Publication date
Aug 16, 2007
Akihiro Kotsugai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, METHOD OF PREPARING THE TONER, AND DEVELOPER, IMAGE FORMING...
Publication number
20070141500
Publication date
Jun 21, 2007
Tsuyoshi Sugimoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming method and image forming apparatus
Publication number
20070059063
Publication date
Mar 15, 2007
Shinya Nakayama
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, 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
Toner for developing electrostatic latent image, developer using th...
Publication number
20060172215
Publication date
Aug 3, 2006
Akihiro Kotsugai
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