Koichi Sakata

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Carrier for developer of electrostatic latent image, two-component...
- Patent number 10,474,051
- Issue date Nov 12, 2019
- Ricoh Company, Ltd.
- Mariko Takii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier, developer, supplemental developer, image forming apparatus...
- Patent number 10,444,651
- Issue date Oct 15, 2019
- Ricoh Company, Ltd.
- Mariko Takii
- 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 and developer
- Patent number 10,031,434
- Issue date Jul 24, 2018
- Ricoh Company, Ltd.
- Mariko Takii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier, developing agent, image forming apparatus, image forming m...
- Patent number 10,025,214
- Issue date Jul 17, 2018
- Ricoh Company, Ltd.
- Masashi Nagayama
- 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, 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 device, image forming apparatus, and process cartridge
- Patent number 8,903,270
- Issue date Dec 2, 2014
- Ricoh Company, Ltd.
- Koichi Sakata
- 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, 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 for developing electrostatic latent image and developer
- Patent number 8,637,218
- Issue date Jan 28, 2014
- Ricoh Company, Ltd.
- Koichi Sakata
- 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, developer, and image forming method
- Patent number 8,431,312
- Issue date Apr 30, 2013
- Ricoh Company, Ltd.
- Minoru Masuda
- 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 developing electrostatic latent image, two-component de...
- Patent number 8,247,150
- Issue date Aug 21, 2012
- Ricoh Company, Ltd.
- Hitoshi Iwatsuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
CARRIER FOR DEVELOPER OF ELECTROSTATIC LATENT IMAGE, TWO-COMPONENT...
- Publication number 20190018331
- Publication date Jan 17, 2019
- Mariko Takii
- 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
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, DEVELOPING AGENT, IMAGE FORMING APPARATUS, IMAGE FORMING M...
- Publication number 20170185000
- Publication date Jun 29, 2017
- Masashi NAGAYAMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARRIER AND DEVELOPER
- Publication number 20160363880
- Publication date Dec 15, 2016
- Mariko TAKII
- 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, TOW-COMPONENT DE...
- Publication number 20130252169
- Publication date Sep 26, 2013
- Shigenori Yaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE AND DEVELOPER
- Publication number 20130065175
- Publication date Mar 14, 2013
- Koichi Sakata
- 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
DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
- Publication number 20120230725
- Publication date Sep 13, 2012
- Koichi SAKATA
- 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, AND IMAGE FORMING METHOD
- Publication number 20110217649
- Publication date Sep 8, 2011
- Minoru Masuda
- 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

Koichi Sakata

Person

Patents Grantslast 30 patents

Carrier for developer of electrostatic latent image, two-component...

Carrier, developer, supplemental developer, image forming apparatus...

Carrier, developer, image forming apparatus, developer stored unit,...

Developing device and image forming apparatus

Electrostatic latent image developing white developer, image formin...

Carrier and developer

Carrier, developing agent, image forming apparatus, image forming m...

Carrier, two-component developer, image forming apparatus, process...

Carrier, two-component developer, supplemental developer, image for...

Carrier for developing an electrostatic latent image, developer and...

Carrier for two-component developer, two-component developer using...

Replenishing developer housing container and image forming apparatus

Carrier for two-component developer, two-component developer using...

Carrier, developer using the carrier, and developing device, image...

Image forming method and image forming apparatus

Carrier for developing electrostatic latent image, tow-component de...

Developing device, image forming apparatus, and process cartridge

Developing method and image forming method

Developing device including a developer container with toner partic...

Carrier, developer, method of manufacturing carrier, developer cont...

Contact developing method, image forming apparatus, and process car...

Carrier for developing electrostatic latent image and developer

Carrier, method for preparing the carrier, developer using the carr...

Carrier for developing electrostatic latent image, and two-componen...

Latent electrostatic image developing carrier, two-component develo...

Carrier for two-component developer

Carrier, method for preparing the carrier, developer using the carr...

Carrier, developer, and image forming method

Carrier

Carrier for developing electrostatic latent image, two-component de...

Patents Applicationslast 30 patents

CARRIER FOR DEVELOPER OF ELECTROSTATIC LATENT IMAGE, TWO-COMPONENT...

CARRIER, DEVELOPER, SUPPLEMENTAL DEVELOPER, IMAGE FORMING APPARATUS...

CARRIER, DEVELOPER, IMAGE FORMING APPARATUS, DEVELOPER STORED UNIT,...

ELECTROSTATIC LATENT IMAGE DEVELOPING WHITE DEVELOPER, IMAGE FORMIN...

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS

CARRIER, TWO-COMPONENT DEVELOPER, IMAGE FORMING APPARATUS, PROCESS...

CARRIER, DEVELOPING AGENT, IMAGE FORMING APPARATUS, IMAGE FORMING M...

CARRIER AND DEVELOPER

CARRIER, TWO-COMPONENT DEVELOPER, SUPPLEMENTAL DEVELOPER, IMAGE FOR...

REPLENISHING DEVELOPER HOUSING CONTAINER AND IMAGE FORMING APPARATUS

CARRIER FOR TWO-COMPONENT DEVELOPER, TWO-COMPONENT DEVELOPER USING...

CARRIER FOR TWO-COMPONENT DEVELOPER, TWO-COMPONENT DEVELOPER USING...

CARRIER FOR TWO-COMPONENT DEVELOPER, ELECTROSTATIC LATENT IMAGE DEV...

CARRIER FOR DEVELOPING AN ELECTROSTATIC LATENT IMAGE, DEVELOPER AND...

CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE, TOW-COMPONENT DE...

CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE AND DEVELOPER

IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS

DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE

DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE

CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE, AND TWO-COMPONEN...

CARRIER, DEVELOPER, METHOD OF MANUFACTURING CARRIER, DEVELOPER CONT...

CONTACT DEVELOPING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CAR...

DEVELOPING METHOD AND IMAGE FORMING METHOD

CARRIER, METHOD FOR PREPARING THE CARRIER, DEVELOPER USING THE CARR...

CARRIER, DEVELOPER, AND IMAGE FORMING METHOD

CARRIER, DEVELOPER USING THE CARRIER, AND DEVELOPING DEVICE, IMAGE...

CARRIER, METHOD FOR PREPARING THE CARRIER, DEVELOPER USING THE CARR...

CARRIER FOR TWO-COMPONENT DEVELOPER

LATENT ELECTROSTATIC IMAGE DEVELOPING CARRIER, TWO-COMPONENT DEVELO...

CARRIER FOR USE IN DEVELOPER DEVELOPING ELECTROSTATIC IMAGE, DEVELO...