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Akio TAKEI
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Shizuoka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Toner, method for manufacturing toner, developer, toner accommodati...
Patent number
11,796,931
Issue date
Oct 24, 2023
Ricoh Company, Ltd.
Akio Takei
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and image forming method
Patent number
11,340,540
Issue date
May 24, 2022
Ricoh Company, Ltd.
Akio Takei
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Fixing method, image forming method, and image forming apparatus
Patent number
10,571,834
Issue date
Feb 25, 2020
Ricoh Company, Ltd.
Ryohei Matsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, toner stored unit, and image forming apparatus
Patent number
9,989,869
Issue date
Jun 5, 2018
Ricoh Company, Ltd.
Daisuke Inoue
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
AMORPHOUS POLYESTER RESIN, AQUEOUS DISPERSION LIQUID, METHOD FOR PR...
Publication number
20240210845
Publication date
Jun 27, 2024
RICOH COMPANY, LTD.
Junichi Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
RESIN PARTICLE, TONER, TONER ACCOMMODATING UNIT, IMAGE FORMING APPA...
Publication number
20240192620
Publication date
Jun 13, 2024
RICOH COMPANY, LTD.
Yuka Mizoguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, TONER PRODUCTION METHOD, TONER STORAGE UNIT, IMAGE FORMING A...
Publication number
20230305412
Publication date
Sep 28, 2023
RICOH COMPANY, LTD.
Masahiro YUKIKAWA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, TONER STORING UNIT, AND IMAGE FORMING APPARATUS
Publication number
20230147363
Publication date
May 11, 2023
Ryuuta YOSHIDA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER AND TONER PRODUCING METHOD, TONER STORING UNIT, IMAGE FORMING...
Publication number
20230109578
Publication date
Apr 6, 2023
Kazumasa TABATA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPER, TONER STORAGE UNIT, IMAGE FORMING APPARATUS, AND...
Publication number
20230014605
Publication date
Jan 19, 2023
RICOH COMPANY, LTD.
Akinori SAITOH
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPER, TONER STORAGE UNIT, IMAGE FORMING APPARATUS, AND...
Publication number
20220291602
Publication date
Sep 15, 2022
RICOH COMPANY, LTD.
Yasuo KAMADA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, DEVELOPING AGENT, TONER STORED UNIT, AND IMAGE FORMING APPAR...
Publication number
20220137525
Publication date
May 5, 2022
RICOH COMPANY, LTD.
Ryuuta Yoshida
B82 - NANO-TECHNOLOGY
Information
Patent Application
TONER AND PRODUCTION METHOD THEREOF, AND TONER STORED UNIT, IMAGE F...
Publication number
20220050395
Publication date
Feb 17, 2022
RICOH COMPANY, LTD.
Hiroshi YAMADA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER AND PRODUCTION METHOD THEREOF, TONER STORED UNIT, IMAGE FORMI...
Publication number
20210356877
Publication date
Nov 18, 2021
RICOH COMPANY, LTD.
Yasuo KAMADA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, METHOD FOR MANUFACTURING TONER, DEVELOPER, TONER ACCOMMODATI...
Publication number
20210116830
Publication date
Apr 22, 2021
Akio TAKEI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
Publication number
20210063916
Publication date
Mar 4, 2021
Akio TAKEI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
FIXING METHOD, IMAGE FORMING METHOD, AND IMAGE FORMING APPARATUS
Publication number
20190243291
Publication date
Aug 8, 2019
Ryohei MATSUDA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, TONER STORED UNIT, AND IMAGE FORMING APPARATUS
Publication number
20180052403
Publication date
Feb 22, 2018
Daisuke INOUE
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY