Membership
Tour
Register
Log in
Masashi Nagayama
Follow
Person
Shizuoka, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Carrier for developing electrostatic latent image, two-component de...
Patent number
12,147,192
Issue date
Nov 19, 2024
Ricoh Company, Ltd.
Hiroyuki Kishida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier for forming electrophotographic image, developing agent for...
Patent number
12,105,472
Issue date
Oct 1, 2024
Ricoh Company, Ltd.
Kento Takeuchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developing apparatus, developer for electrophotographic image forma...
Patent number
11,934,145
Issue date
Mar 19, 2024
Ricoh Company, Ltd.
Minoru Masuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier, developer, method, and apparatus for forming electrophotog...
Patent number
11,106,150
Issue date
Aug 31, 2021
Ricoh Company, Ltd.
Masashi Nagayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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
Toner for electrophotography, image forming method, and process car...
Patent number
10,274,856
Issue date
Apr 30, 2019
Ricoh Company, Ltd.
Hisashi Nakajima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, image forming method, and process cartridge
Patent number
10,203,620
Issue date
Feb 12, 2019
Ricoh Company, Ltd.
Yu Naito
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
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
White toner, and image forming method and image forming apparatus u...
Patent number
9,482,971
Issue date
Nov 1, 2016
Ricoh Company, Ltd.
Kazumi Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner housing container and image forming apparatus
Patent number
9,348,259
Issue date
May 24, 2016
Ricoh Company, Ltd.
Masashi Nagayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, image forming apparatus, image forming method, and process c...
Patent number
9,182,694
Issue date
Nov 10, 2015
Ricoh Company, Ltd.
Saori Yamada
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Powder container and image forming apparatus incorporating same
Patent number
9,170,530
Issue date
Oct 27, 2015
Ricoh Company, Ltd.
Yuki Oshikawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner for forming electrophotographic image, method for manufacturi...
Patent number
9,128,398
Issue date
Sep 8, 2015
Ricoh Company, Ltd.
Masashi Nagayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, image forming method, and process cartridge
Patent number
9,005,862
Issue date
Apr 14, 2015
Ricoh Company, Ltd.
Masashi Nagayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus
Patent number
8,774,655
Issue date
Jul 8, 2014
Ricoh Company, Limited
Motohiro Usami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming method, image forming apparatus, and process cartridge
Patent number
8,741,529
Issue date
Jun 3, 2014
Ricoh Company, Ltd.
Mitsuo Aoki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier, developer, image forming method and process cartridge
Patent number
8,728,698
Issue date
May 20, 2014
Ricoh Company, Ltd.
Masashi Nagayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, image forming method, and process cartridge
Patent number
8,728,696
Issue date
May 20, 2014
Ricoh Company, Ltd.
Saori Yamada
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
Electrophotographic developer carrier, electrophotographic develope...
Patent number
8,247,149
Issue date
Aug 21, 2012
Ricoh Company, Ltd.
Shinichiro Yagi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus, process cartridge, image forming method an...
Patent number
8,213,833
Issue date
Jul 3, 2012
Ricoh Company, Ltd.
Shinichiro Yagi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus for use with carrier including a core and c...
Patent number
8,086,143
Issue date
Dec 27, 2011
Ricoh Company, Limited
Masashi Nagayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrographic carrier, developer, developing method, image forming...
Patent number
8,067,141
Issue date
Nov 29, 2011
Ricoh Company, Ltd.
Kimitoshi Yamaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic developer and carrier therefor, core material p...
Patent number
8,039,189
Issue date
Oct 18, 2011
Ricoh Company, Ltd.
Kimitoshi Yamaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier, supplemental developer, developer in image developer, deve...
Patent number
8,026,032
Issue date
Sep 27, 2011
Ricoh Company, Ltd.
Hitoshi Iwatsuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic developing carrier, associated apparatus and me...
Patent number
7,763,410
Issue date
Jul 27, 2010
Ricoh Company, Ltd.
Kimitoshi Yamaguchi
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Grant
Developer for use in electrophotography, image forming method and p...
Patent number
7,468,233
Issue date
Dec 23, 2008
Ricoh Company, Ltd.
Masashi Nagayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image removing method, image removing device, and image forming app...
Patent number
7,386,266
Issue date
Jun 10, 2008
Ricoh Company Limited
Masashi Nagayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
CARRIER, DEVELOPING AGENT, IMAGE FORMING METHOD, IMAGE FORMING APPA...
Publication number
20240295834
Publication date
Sep 5, 2024
Masashi NAGAYAMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC IMAGE FORMING CARRIER, ELECTROPHOTOGRAPHIC IMAG...
Publication number
20240160122
Publication date
May 16, 2024
RICOH COMPANY, LTD.
Kento TAKEUCHI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR FORMING ELECTROPHOTOGRAPHIC IMAGE, DEVELOPING AGENT FOR...
Publication number
20230393491
Publication date
Dec 7, 2023
RICOH COMPANY, LTD.
Kento TAKEUCHI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR ELECTROPHOTOGRAPHIC IMAGE FORMATION, DEVELOPER FOR ELEC...
Publication number
20230305439
Publication date
Sep 28, 2023
Masashi NAGAYAMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER, DEVELOPER, IMAGE FORMING METHOD, AND PROCESS CARTRIDGE
Publication number
20230205108
Publication date
Jun 29, 2023
RICOH COMPANY ,LTD.
Kaede MASUKO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPING APPARATUS, DEVELOPER FOR ELECTROPHOTOGRAPHIC IMAGE FORMA...
Publication number
20230195004
Publication date
Jun 22, 2023
RICOH COMPANY, LTD.
Minoru Masuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR FORMING ELECTROPHOTOGRAPHIC IMAGE, DEVELOPER, IMAGE FOR...
Publication number
20220291604
Publication date
Sep 15, 2022
RICOH COMPANY, LTD.
Namie Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE, TWO-COMPONENT DE...
Publication number
20220291603
Publication date
Sep 15, 2022
RICOH COMPANY, LTD.
Hiroyuki Kishida
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR FORMING ELECTROPHOTOGRAPHIC IMAGE, DEVELOPER FOR FORMIN...
Publication number
20220283523
Publication date
Sep 8, 2022
RICOH COMPANY, LTD.
Masashi NAGAYAMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER FOR FORMING ELECTROPHOTOGRAPHIC IMAGE, DEVELOPER FOR FORMIN...
Publication number
20220187729
Publication date
Jun 16, 2022
RICOH COMPANY, LTD.
Masashi Nagayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CARRIER, DEVELOPER, METHOD, AND APPARATUS FOR FORMING ELECTROPHOTOG...
Publication number
20200166867
Publication date
May 28, 2020
Masashi NAGAYAMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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, 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
TONER FOR ELECTROPHOTOGRAPHY, IMAGE FORMING METHOD, AND PROCESS CAR...
Publication number
20160327884
Publication date
Nov 10, 2016
Hisashi NAKAJIMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
WHITE TONER, AND IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS U...
Publication number
20150253685
Publication date
Sep 10, 2015
Kazumi Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
RED TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE, DEVELOPER AND...
Publication number
20150248074
Publication date
Sep 3, 2015
Kazumi Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, IMAGE FORMING METHOD, AND PROCESS CARTRIDGE
Publication number
20150030819
Publication date
Jan 29, 2015
Yu Naito
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER HOUSING CONTAINER AND IMAGE FORMING APPARATUS
Publication number
20140348550
Publication date
Nov 27, 2014
RICOH COMPANY, LTD.
Masashi NAGAYAMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER FOR ELECTROPHOTOGRAPHY, AND IMAGE FORMING METHOD, IMAGE FORMI...
Publication number
20140255840
Publication date
Sep 11, 2014
Yoshitaka Sekiguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS
Publication number
20130260299
Publication date
Oct 3, 2013
Hisashi NAKAJIMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER FOR FORMING IMAGE, IMAGE FORMING METHOD, AND IMAGE FORMING AP...
Publication number
20130260302
Publication date
Oct 3, 2013
Hisashi Nakajima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, IMAGE FORMING METHOD, AND PROCESS CARTRIDGE
Publication number
20130260307
Publication date
Oct 3, 2013
Masashi Nagayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER FOR FORMING ELECTROPHOTOGRAPHIC IMAGE, METHOD FOR MANUFACTURI...
Publication number
20130252160
Publication date
Sep 26, 2013
Masashi NAGAYAMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND PROCESS C...
Publication number
20130244162
Publication date
Sep 19, 2013
Saori Yamada
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
Publication number
20120251169
Publication date
Oct 4, 2012
Mitsuo Aoki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC IMAGE FORMING METHOD AND PROCESS CARTRIDGE
Publication number
20120251168
Publication date
Oct 4, 2012
Masashi Nagayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, IMAGE FORMING METHOD, AND PROCESS CARTRIDGE
Publication number
20120237868
Publication date
Sep 20, 2012
Saori Yamada
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING METHOD, TWO-COMPONENT DEVELOPER, IMAGE FORMING APPARA...
Publication number
20120009514
Publication date
Jan 12, 2012
Masashi Nagayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY