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Kanagawa, JP
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last 30 patents
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Patent Grant
Toner, developer, and image forming apparatus
Patent number
10,670,980
Issue date
Jun 2, 2020
Ricoh Company, Ltd.
Koh Ohnuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Layered inorganic mineral, toner, and image forming apparatus
Patent number
10,088,766
Issue date
Oct 2, 2018
Ricoh Company, Ltd.
Hideyuki Santo
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Toner, toner storage unit, image forming apparatus, and method for...
Patent number
10,073,366
Issue date
Sep 11, 2018
Ricoh Company, Ltd.
Kohsuke Nagata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer and developer containing unit
Patent number
9,753,387
Issue date
Sep 5, 2017
Ricoh Company, Ltd.
Shin Hasegawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer using the toner, image forming apparatus
Patent number
9,720,339
Issue date
Aug 1, 2017
Ricoh Company, Ltd.
Shingo Sakashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer, image forming apparatus, and process cartridge
Patent number
9,639,016
Issue date
May 2, 2017
Ricoh Company, Ltd.
Tsuyoshi Sugimoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrostatic image developing toner, developer, and image forming...
Patent number
9,557,671
Issue date
Jan 31, 2017
Ricoh Company, Ltd.
Ryuta Chiba
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer using the toner, image forming apparatus
Patent number
9,519,235
Issue date
Dec 13, 2016
Ricoh Company, Ltd.
Shingo Sakashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer using the toner, image forming apparatus
Patent number
9,134,638
Issue date
Sep 15, 2015
Ricoh Company, Ltd.
Shingo Sakashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Resin for toner, toner using the resin, and development agent using...
Patent number
9,127,118
Issue date
Sep 8, 2015
Ricoh Company, Ltd.
Hideyuki Santo
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Image forming apparatus
Patent number
9,042,802
Issue date
May 26, 2015
Ricoh Company, Ltd.
Takamasa Hase
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Colorless transparent toner, toner set, development agent, image fo...
Patent number
9,005,859
Issue date
Apr 14, 2015
Ricoh Company, Ltd.
Akiyoshi Sabu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Development agent and image forming apparatus employing same
Patent number
8,951,705
Issue date
Feb 10, 2015
Ricoh Company, Ltd.
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer and image forming apparatus
Patent number
8,951,707
Issue date
Feb 10, 2015
Ricoh Company, Ltd.
Suzuka Amemori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, method of manufacturing toner, developer, toner container, i...
Patent number
8,877,415
Issue date
Nov 4, 2014
Ricoh Company, Ltd.
Daiki Yamashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic toner, developer, and image forming apparatus
Patent number
8,865,384
Issue date
Oct 21, 2014
Ricoh Company, Ltd.
Masahide Yamada
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developer for electrophotography, image forming apparatus and proce...
Patent number
8,859,179
Issue date
Oct 14, 2014
Ricoh Company, Ltd.
Hideyuki Santo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner for electrophotography, developer, image forming method, and...
Patent number
8,852,834
Issue date
Oct 7, 2014
Ricoh Company, Ltd.
Hideyuki Santo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer, process cartridge, and image forming apparatus
Patent number
8,828,635
Issue date
Sep 9, 2014
Ricoh Company, Ltd.
Yoshihiro Moriya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, development agent, and image forming apparatus
Patent number
8,822,118
Issue date
Sep 2, 2014
Ricoh Company, Ltd.
Atsushi Yamamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner and development agent, image forming apparatus, and process c...
Patent number
8,808,955
Issue date
Aug 19, 2014
Ricoh Company, Ltd.
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, and developer and image forming apparatus using the toner
Patent number
8,795,939
Issue date
Aug 5, 2014
Ricoh Company, Ltd.
Atsushi Yamamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner and image forming apparatus
Patent number
8,603,715
Issue date
Dec 10, 2013
Ricoh Company, Ltd.
Suzuka Amemori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developing device, image forming method and apparatus, and process...
Patent number
8,524,436
Issue date
Sep 3, 2013
Ricoh Company, Ltd.
Masashi Nagayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Apparatus and method for manufacturing toner
Patent number
8,404,425
Issue date
Mar 26, 2013
Ricoh Company, Limited
Yoichi Maekawa
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Grant
Pulverizing apparatus and method for pulverizing
Patent number
7,364,101
Issue date
Apr 29, 2008
Ricoh Company, Ltd.
Tetsuya Tanaka
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Patents Applications
last 30 patents
Information
Patent Application
TONER, DEVELOPER, AND IMAGE FORMING APPARATUS
Publication number
20180321606
Publication date
Nov 8, 2018
Koh OHNUMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, TONER ACCOMMODATING UNIT, AND IMAGE FORMING APPARATUS
Publication number
20180024452
Publication date
Jan 25, 2018
Tsuyoshi SUGIMOTO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
LAYERED INORGANIC MINERAL, TONER, AND IMAGE FORMING APPARATUS
Publication number
20170371257
Publication date
Dec 28, 2017
Hideyuki SANTO
C01 - INORGANIC CHEMISTRY
Information
Patent Application
TONER, TONER STORAGE UNIT, IMAGE FORMING APPARATUS, AND METHOD FOR...
Publication number
20170363980
Publication date
Dec 21, 2017
Kohsuke NAGATA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPER AND DEVELOPER CONTAINING UNIT
Publication number
20160349644
Publication date
Dec 1, 2016
Shin HASEGAWA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPER USING THE TONER, IMAGE FORMING APPARATUS
Publication number
20160334726
Publication date
Nov 17, 2016
Shingo SAKASHITA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPER, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
Publication number
20160259257
Publication date
Sep 8, 2016
Tsuyoshi SUGIMOTO
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
TONER, DEVELOPER, AND IMAGE FORMING APPARATUS
Publication number
20150261113
Publication date
Sep 17, 2015
Akihiro Takeyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROSTATIC IMAGE DEVELOPING TONER, DEVELOPER, AND IMAGE FORMING...
Publication number
20150248070
Publication date
Sep 3, 2015
Ryuta CHIBA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPER USING THE TONER, IMAGE FORMING APPARATUS
Publication number
20150227071
Publication date
Aug 13, 2015
Shingo Sakashita
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
Publication number
20140363184
Publication date
Dec 11, 2014
RICOH COMPANY, LTD.
Hideyuki Santo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPER USING THE TONER, IMAGE FORMING APPARATUS
Publication number
20140301757
Publication date
Oct 9, 2014
Shingo Sakashita
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20140270874
Publication date
Sep 18, 2014
Takamasa Hase
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPMENT AGENT, AND IMAGE FORMING METHOD
Publication number
20140272696
Publication date
Sep 18, 2014
Hiroshi YAMASHITA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPER AND IMAGE FORMING APPARATUS
Publication number
20140065534
Publication date
Mar 6, 2014
Suzuka Amemori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC TONER, DEVELOPER, AND IMAGE FORMING APPARATUS
Publication number
20130252158
Publication date
Sep 26, 2013
Masahide YAMADA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
COLORLESS TRANSPARENT TONER, TONER SET, DEVELOPMENT AGENT, IMAGE FO...
Publication number
20130244011
Publication date
Sep 19, 2013
Akiyoshi SABU
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
TONER, DEVELOPMENT AGENT, AND IMAGE FORMING APPARATUS
Publication number
20130244154
Publication date
Sep 19, 2013
Atsushi YAMAMOTO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, METHOD OF MANUFACTURING TONER, DEVELOPER, TONER CONTAINER, I...
Publication number
20130244168
Publication date
Sep 19, 2013
Daiki Yamashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPMENT AGENT AND IMAGE FORMING APPARATUS EMPLOYING SAME
Publication number
20130244153
Publication date
Sep 19, 2013
Shinya NAKAYAMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER FOR ELECTROPHOTOGRAPHY, DEVELOPER AND METHOD OF PREPARING THE...
Publication number
20130236826
Publication date
Sep 12, 2013
Keiji Makabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPER FOR ELECTROPHOTOGRAPHY, IMAGE FORMING APPARATUS AND PROCE...
Publication number
20130157183
Publication date
Jun 20, 2013
Hideyuki Santo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER FOR ELECTROPHOTOGRAPHY, DEVELOPER, IMAGE FORMING METHOD, AND...
Publication number
20130143155
Publication date
Jun 6, 2013
Hideyuki SANTO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER AND IMAGE FORMING APPARATUS
Publication number
20130115550
Publication date
May 9, 2013
Suzuka Amemori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, AND DEVELOPER AND IMAGE FORMING APPARATUS USING THE TONER
Publication number
20130108950
Publication date
May 2, 2013
Atsushi Yamamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER
Publication number
20130095422
Publication date
Apr 18, 2013
Atsushi YAMAMOTO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER AND DEVELOPMENT AGENT, IMAGE FORMING APPARATUS, AND PROCESS C...
Publication number
20130078563
Publication date
Mar 28, 2013
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
Publication number
20130045442
Publication date
Feb 21, 2013
Yoshihiro MORIYA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER FOR ELECTROPHOTOGRAPHY, DEVELOPER, AND IMAGE FORMING APPARATUS
Publication number
20120282000
Publication date
Nov 8, 2012
Shinya Nakayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
RESIN FOR TONER, TONER USING THE RESIN, AND DEVELOPMENT AGENT USING...
Publication number
20120231383
Publication date
Sep 13, 2012
RICOH COMPANY, LTD.
Hideyuki SANTO
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...