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Akifumi Nakamura
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Organic electroluminescent device using aryl amine derivative conta...
Patent number
11,678,571
Issue date
Jun 13, 2023
Idemitsu Kosan Co., Ltd.
Masahiro Kawamura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Organic electroluminescent device using aryl amine derivative conta...
Patent number
11,152,574
Issue date
Oct 19, 2021
Idemitsu Kosan Co., Ltd.
Masahiro Kawamura
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Organic electroluminescent device using aryl amine derivative conta...
Patent number
11,094,888
Issue date
Aug 17, 2021
Idemitsu Kosan Co., Ltd.
Masahiro Kawamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Organic electroluminescent device using aryl amine derivative conta...
Patent number
10,283,717
Issue date
May 7, 2019
Idemitsu Kosan Co., Ltd.
Masahiro Kawamura
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Organic electroluminescent device using aryl amine derivative conta...
Patent number
10,263,192
Issue date
Apr 16, 2019
Idemitsu Kosan Co., Ltd.
Masahiro Kawamura
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Organic electroluminescent device using aryl amine derivative conta...
Patent number
9,960,360
Issue date
May 1, 2018
Idemitsu Kosan Co., Ltd.
Masahiro Kawamura
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Organic electroluminescence device and display unit
Patent number
9,224,971
Issue date
Dec 29, 2015
Joled Inc
Akifumi Nakamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Organic electroluminescent device and display apparatus
Patent number
8,956,736
Issue date
Feb 17, 2015
Sony Corporation
Shigeyuki Matsunami
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Organic electroluminescent device and display device
Patent number
8,872,423
Issue date
Oct 28, 2014
Sony Corporation
Emiko Kambe
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Light-emitting element and organic electroluminescent display device
Patent number
8,664,677
Issue date
Mar 4, 2014
Sony Corporation
Jiro Yamada
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Organic electroluminescent device
Patent number
8,558,452
Issue date
Oct 15, 2013
Sony Corporation
Akifumi Nakamura
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE USING ARYL AMINE DERIVATIVE CONTA...
Publication number
20210376247
Publication date
Dec 2, 2021
Idemitsu Kosan Co., Ltd.
Masahiro KAWAMURA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE USING ARYL AMINE DERIVATIVE CONTA...
Publication number
20210083194
Publication date
Mar 18, 2021
Idemitsu Kosan Co., Ltd.
Masahiro KAWAMURA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE USING ARYL AMINE DERIVATIVE CONTA...
Publication number
20180090685
Publication date
Mar 29, 2018
Idemitsu Kosan Co., Ltd.
Masahiro KAWAMURA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE USING ARYL AMINE DERIVATIVE CONTA...
Publication number
20180040828
Publication date
Feb 8, 2018
Idemitsu Kosan Co., Ltd.
Masahiro KAWAMURA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE USING ARYL AMINE DERIVATIVE CONTA...
Publication number
20160020403
Publication date
Jan 21, 2016
Idemitsu Kosan Co., Ltd.
Masahiro Kawamura
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
LIGHT-EMITTING ELEMENT AND ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE
Publication number
20140151672
Publication date
Jun 5, 2014
SONY CORPORATION
Jiro Yamada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ORGANIC ELECTROLUMINESCENCE DEVICE AND DISPLAY UNIT
Publication number
20110127505
Publication date
Jun 2, 2011
SONY CORPORATION
Akifumi Nakamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LIGHT-EMITTING ELEMENT AND ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE
Publication number
20110121346
Publication date
May 26, 2011
SONY CORPORATION
Jiro Yamada
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE AND DISPLAY APPARATUS
Publication number
20090039769
Publication date
Feb 12, 2009
SONY CORPORATION
Shigeyuki Matsunami
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE AND DISPLAY DEVICE
Publication number
20080233387
Publication date
Sep 25, 2008
SONY CORPORATION
Emiko Kambe
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE AND DISPLAY APPARATUS
Publication number
20080164809
Publication date
Jul 10, 2008
SONY CORPORATION
Shigeyuki Matsunami
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE USING ARYL AMINE DERIVATIVE CONTA...
Publication number
20080014464
Publication date
Jan 17, 2008
Idemitsu Kosan Co., Ltd.
Masahiro Kawamura
C07 - ORGANIC CHEMISTRY
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE
Publication number
20070182320
Publication date
Aug 9, 2007
Akifumi Nakamura
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR