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Patents Grants
last 30 patents
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Patent Grant
Carrier for developing electrostatic latent image, two-component de...
Patent number
10,915,035
Issue date
Feb 9, 2021
Ricoh Company, Ltd.
Haruki Murata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier, developer, image forming apparatus, developer stored unit,...
Patent number
10,234,783
Issue date
Mar 19, 2019
Ricoh Company, Ltd.
Koichi Sakata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developing device and image forming apparatus
Patent number
10,197,948
Issue date
Feb 5, 2019
Ricoh Company, Ltd.
Hitoshi Iwatsuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrostatic latent image developing white developer, image formin...
Patent number
10,067,438
Issue date
Sep 4, 2018
Ricoh Company, Ltd.
Yoshihiro Murasawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier for developing electrostatic latent images, two-component d...
Patent number
9,989,874
Issue date
Jun 5, 2018
Ricoh Company, Ltd.
Yoshihiro Murasawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier, two-component developer, image forming apparatus, process...
Patent number
9,946,177
Issue date
Apr 17, 2018
Ricoh Company, Ltd.
Yoshihiro Murasawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier, two-component developer, supplemental developer, image for...
Patent number
9,519,234
Issue date
Dec 13, 2016
Ricoh Company, Ltd.
Hiroyuki Kishida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier for developing an electrostatic latent image, developer and...
Patent number
9,304,427
Issue date
Apr 5, 2016
Ricoh Company, Ltd.
Hitoshi Iwatsuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier for two-component developer, two-component developer using...
Patent number
9,298,119
Issue date
Mar 29, 2016
Ricoh Company, Ltd.
Shigenori Yaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Replenishing developer housing container and image forming apparatus
Patent number
9,261,817
Issue date
Feb 16, 2016
Ricoh Company, Ltd.
Hitoshi Iwatsuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier for two-component developer, two-component developer using...
Patent number
9,229,347
Issue date
Jan 5, 2016
Ricoh Company, Ltd.
Hiroyuki Kishida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier for developing electrostatic latent image, and electrostati...
Patent number
9,146,487
Issue date
Sep 29, 2015
Ricoh Company, Ltd.
Toyoshi Sawada
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier, developer using the carrier, and developing device, image...
Patent number
9,029,061
Issue date
May 12, 2015
Ricoh Company, Limited
Koichi Sakata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming method and image forming apparatus
Patent number
8,918,025
Issue date
Dec 23, 2014
Ricoh Company, Ltd.
Hiroshi Tohmatsu
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Carrier for developing electrostatic latent image, tow-component de...
Patent number
8,916,325
Issue date
Dec 23, 2014
Ricoh Company, Ltd.
Shigenori Yaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developing method and image forming method
Patent number
8,877,418
Issue date
Nov 4, 2014
Ricoh Company, Ltd.
Hisashi Nakajima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developing device including a developer container with toner partic...
Patent number
8,787,804
Issue date
Jul 22, 2014
Ricoh Company, Ltd.
Hiroyuki Kishida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier for electrostatic latent image developer, electrostatic lat...
Patent number
8,778,587
Issue date
Jul 15, 2014
Ricoh Company, Ltd.
Kimitoshi Yamaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Latent electrostatic image developing carrier, process cartridge an...
Patent number
8,663,892
Issue date
Mar 4, 2014
Ricoh Company, Ltd.
Shigenori Yaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier, developer, method of manufacturing carrier, developer cont...
Patent number
8,652,735
Issue date
Feb 18, 2014
Ricoh Company, Ltd.
Koichi Sakata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Contact developing method, image forming apparatus, and process car...
Patent number
8,652,738
Issue date
Feb 18, 2014
Ricoh Company, Ltd.
Kimitoshi Yamaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier, method for preparing the carrier, developer using the carr...
Patent number
8,518,626
Issue date
Aug 27, 2013
Ricoh Company, Limited
Saori Yamada
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier for developing electrostatic latent image, and two-componen...
Patent number
8,512,928
Issue date
Aug 20, 2013
Rocoh Company, Ltd.
Hiroyuki Kishida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Latent electrostatic image developing carrier, two-component develo...
Patent number
8,512,929
Issue date
Aug 20, 2013
Ricoh Company, Ltd.
Hitoshi Iwatsuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier for two-component developer
Patent number
8,481,239
Issue date
Jul 9, 2013
Ricoh Company Limited
Hisashi Nakajima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier, method for preparing the carrier, developer using the carr...
Patent number
8,475,989
Issue date
Jul 2, 2013
Ricoh Company, Limited
Yutaka Takahashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier
Patent number
8,257,896
Issue date
Sep 4, 2012
Ricoh Company, Ltd.
Minoru Masuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier for use in developer developing electrostatic image, develo...
Patent number
8,211,610
Issue date
Jul 3, 2012
Ricoh Company Limited
Kimitoshi Yamaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE, TWO-COMPONENT DE...
Publication number
20200183297
Publication date
Jun 11, 2020
Haruki MURATA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER, DEVELOPER, SUPPLEMENTAL DEVELOPER, IMAGE FORMING APPARATUS...
Publication number
20180267421
Publication date
Sep 20, 2018
Mariko TAKII
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER, DEVELOPER, IMAGE FORMING APPARATUS, DEVELOPER STORED UNIT,...
Publication number
20180120724
Publication date
May 3, 2018
Koichi SAKATA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROSTATIC LATENT IMAGE DEVELOPING WHITE DEVELOPER, IMAGE FORMIN...
Publication number
20170329247
Publication date
Nov 16, 2017
Yoshihiro MURASAWA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGES, TWO-COMPONENT D...
Publication number
20170269497
Publication date
Sep 21, 2017
Yoshihiro MURASAWA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
Publication number
20170248871
Publication date
Aug 31, 2017
Hitoshi IWATSUKI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER, TWO-COMPONENT DEVELOPER, IMAGE FORMING APPARATUS, PROCESS...
Publication number
20170205721
Publication date
Jul 20, 2017
Yoshihiro MURASAWA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER, TWO-COMPONENT DEVELOPER, SUPPLEMENTAL DEVELOPER, IMAGE FOR...
Publication number
20150153665
Publication date
Jun 4, 2015
Hiroyuki Kishida
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
REPLENISHING DEVELOPER HOUSING CONTAINER AND IMAGE FORMING APPARATUS
Publication number
20140348552
Publication date
Nov 27, 2014
RICOH COMPANY, LTD.
Hitoshi Iwatsuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR TWO-COMPONENT DEVELOPER, TWO-COMPONENT DEVELOPER USING...
Publication number
20140248557
Publication date
Sep 4, 2014
Shigenori YAGUCHI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR TWO-COMPONENT DEVELOPER, TWO-COMPONENT DEVELOPER USING...
Publication number
20140227638
Publication date
Aug 14, 2014
Hiroyuki KISHIDA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR TWO-COMPONENT DEVELOPER, ELECTROSTATIC LATENT IMAGE DEV...
Publication number
20140080052
Publication date
Mar 20, 2014
Shigenori YAGUCHI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR DEVELOPING AN ELECTROSTATIC LATENT IMAGE, DEVELOPER AND...
Publication number
20140072910
Publication date
Mar 13, 2014
Hitoshi IWATSUKI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE, AND ELECTROSTATI...
Publication number
20140023966
Publication date
Jan 23, 2014
Toyoshi SAWADA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE, TOW-COMPONENT DE...
Publication number
20130252169
Publication date
Sep 26, 2013
Shigenori Yaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR ELECTROSTATIC LATENT IMAGE DEVELOPER, ELECTROSTATIC LAT...
Publication number
20130101930
Publication date
Apr 25, 2013
Kimitoshi Yamaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
LATENT ELECTROSTATIC IMAGE DEVELOPING CARRIER, PROCESS CARTRIDGE AN...
Publication number
20130065171
Publication date
Mar 14, 2013
Shigenori Yaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS
Publication number
20130016999
Publication date
Jan 17, 2013
Hiroshi Tohmatsu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
Publication number
20130004209
Publication date
Jan 3, 2013
Hiroyuki KISHIDA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE, AND TWO-COMPONEN...
Publication number
20120064451
Publication date
Mar 15, 2012
Hiroyuki Kishida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER, DEVELOPER, METHOD OF MANUFACTURING CARRIER, DEVELOPER CONT...
Publication number
20120057898
Publication date
Mar 8, 2012
Koichi Sakata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CONTACT DEVELOPING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CAR...
Publication number
20120058423
Publication date
Mar 8, 2012
Kimitoshi Yamaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPING METHOD AND IMAGE FORMING METHOD
Publication number
20120028183
Publication date
Feb 2, 2012
Hisashi NAKAJIMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER, METHOD FOR PREPARING THE CARRIER, DEVELOPER USING THE CARR...
Publication number
20110229817
Publication date
Sep 22, 2011
Saori YAMADA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER, DEVELOPER USING THE CARRIER, AND DEVELOPING DEVICE, IMAGE...
Publication number
20110171573
Publication date
Jul 14, 2011
Koichi SAKATA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER, METHOD FOR PREPARING THE CARRIER, DEVELOPER USING THE CARR...
Publication number
20110091802
Publication date
Apr 21, 2011
Yutaka TAKAHASHI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR TWO-COMPONENT DEVELOPER
Publication number
20110086307
Publication date
Apr 14, 2011
Hisashi NAKAJIMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
LATENT ELECTROSTATIC IMAGE DEVELOPING CARRIER, TWO-COMPONENT DEVELO...
Publication number
20110065037
Publication date
Mar 17, 2011
Hitoshi Iwatsuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR USE IN DEVELOPER DEVELOPING ELECTROSTATIC IMAGE, DEVELO...
Publication number
20100239975
Publication date
Sep 23, 2010
Kimitoshi Yamaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER
Publication number
20100233613
Publication date
Sep 16, 2010
Minoru MASUDA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY