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Ibaraki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Organic electroluminescent device
Patent number
12,089,488
Issue date
Sep 10, 2024
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Indenoindole derivative and organic electroluminescent element
Patent number
9,985,216
Issue date
May 29, 2018
Hodogaya Chemical Co., Ltd.
Makoto Nagaoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Naphthotriazole derivatives and organic electroluminescence devices
Patent number
9,871,210
Issue date
Jan 16, 2018
Hodogaya Chemical Co., Ltd.
Makoto Nagaoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Benzotriazole derivative and an organic electroluminescent device
Patent number
9,842,999
Issue date
Dec 12, 2017
Hodogaya Chemical Co., Ltd.
Makoto Nagaoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Benzopyridoindole derivative and organic electroluminescent element
Patent number
9,837,620
Issue date
Dec 5, 2017
Hodogaya Chemical Co., Ltd.
Makoto Nagaoka
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Compound having substituted anthracene ring structure and pyridoind...
Patent number
9,755,152
Issue date
Sep 5, 2017
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Compound having carbazole ring structure, and organic electrolumine...
Patent number
9,732,036
Issue date
Aug 15, 2017
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Arylamine compound useful in an organic electroluminescent device
Patent number
9,525,140
Issue date
Dec 20, 2016
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Organic electroluminescent device
Patent number
9,444,055
Issue date
Sep 13, 2016
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Organic electroluminescent device
Patent number
9,306,174
Issue date
Apr 5, 2016
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Organic electroluminescent device
Patent number
9,306,175
Issue date
Apr 5, 2016
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Compound having triphenylamine structure, and organic electrolumine...
Patent number
9,196,839
Issue date
Nov 24, 2015
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Compound having substituted anthracene ring structure and pyridoind...
Patent number
8,927,119
Issue date
Jan 6, 2015
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Organic electroluminescent device
Patent number
8,771,841
Issue date
Jul 8, 2014
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Compound having pyridoindole ring structure having substituted pyri...
Patent number
8,722,209
Issue date
May 13, 2014
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Organic electroluminescent device containing arylamine compound and...
Patent number
8,716,698
Issue date
May 6, 2014
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Compound having pyridoindole ring structure bonded with substituted...
Patent number
8,624,228
Issue date
Jan 7, 2014
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Compound having substituted anthracene ring structure and pyridoind...
Patent number
8,586,210
Issue date
Nov 19, 2013
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Compound having substituted pyridyl group and pyridoindole ring str...
Patent number
8,377,573
Issue date
Feb 19, 2013
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Compound wherein substituted bipyridyl group is connected with pyri...
Patent number
8,252,431
Issue date
Aug 28, 2012
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Compound having oxadiazole ring structure bonded with aromatic hete...
Patent number
8,247,087
Issue date
Aug 21, 2012
Hodogaya Chemical Co., Ltd.
Tetsuzo Miki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Compound having pyridoindole ring structure having substituted pyri...
Patent number
8,168,308
Issue date
May 1, 2012
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Compound having thiadiazole ring structure substituted with pyridyl...
Patent number
8,153,277
Issue date
Apr 10, 2012
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
m-carbazolylphenyl compounds
Patent number
8,053,092
Issue date
Nov 8, 2011
Hodogaya Chemical Co., Ltd.
Tetsuzo Miki
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Tetramine compound and organic EL device
Patent number
7,902,402
Issue date
Mar 8, 2011
Hodogaya Chemical Co., Ltd.
Shigeru Kusano
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Tetramine compound and organic EL device
Patent number
7,897,816
Issue date
Mar 1, 2011
Hodogaya Chemical Co., Ltd.
Shigeru Kusano
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Tetramine compound and organic EL device
Patent number
7,807,274
Issue date
Oct 5, 2010
Hodogaya Chemical Co., Ltd.
Shigeru Kusano
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Organic EL devices and production process thereof
Patent number
7,402,701
Issue date
Jul 22, 2008
Denso Corporation
Tetsuya Kato
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE
Publication number
20190115542
Publication date
Apr 18, 2019
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
BENZOFUROINDOLE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE
Publication number
20160351823
Publication date
Dec 1, 2016
Hodogaya Chemical Co., Ltd.
Makoto NAGAOKA
C07 - ORGANIC CHEMISTRY
Information
Patent Application
BENZOPYRIDOINDOLE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT
Publication number
20160254458
Publication date
Sep 1, 2016
Hodogaya Chemical Co., Ltd.
Makoto NAGAOKA
C07 - ORGANIC CHEMISTRY
Information
Patent Application
A BENZOTRIAZOLE DERIVATIVE AND AN ORGANIC ELECTROLUMINESCENT DEVICE
Publication number
20160164001
Publication date
Jun 9, 2016
Hodogaya Chemical Co., Ltd.
Makoto NAGAOKA
C07 - ORGANIC CHEMISTRY
Information
Patent Application
INDENOINDOLE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT
Publication number
20160126468
Publication date
May 5, 2016
Hodogaya Chemical Co., Ltd.
Makoto NAGAOKA
C07 - ORGANIC CHEMISTRY
Information
Patent Application
NOVEL NAPHTHOTRIAZOLE DERIVATIVES AND ORGANIC ELECTROLUMINESCENCE D...
Publication number
20160005982
Publication date
Jan 7, 2016
Hodogaya Chemical Co., Ltd.
Makoto NAGAOKA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
COMPOUND HAVING SUBSTITUTED ANTHRACENE RING STRUCTURE AND PYRIDOIND...
Publication number
20150155496
Publication date
Jun 4, 2015
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE
Publication number
20140225100
Publication date
Aug 14, 2014
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
ARYLAMINE COMPOUND USEFUL IN AN ORGANIC ELECTROLUMINESCENT DEVICE
Publication number
20140039221
Publication date
Feb 6, 2014
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
COMPOUND HAVING SUBSTITUTED ANTHRACENE RING STRUCTURE AND PYRIDOIND...
Publication number
20130341604
Publication date
Dec 26, 2013
Norimasa YOKOYAMA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE
Publication number
20130328040
Publication date
Dec 12, 2013
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
COMPOUND HAVING PYRIDOINDOLE RING STRUCTURE HAVING SUBSTITUTED PYRI...
Publication number
20120298969
Publication date
Nov 29, 2012
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
COMPOUND HAVING TRIPHENYLAMINE STRUCTURE, AND ORGANIC ELECTROLUMINE...
Publication number
20120292609
Publication date
Nov 22, 2012
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE
Publication number
20120273767
Publication date
Nov 1, 2012
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE
Publication number
20120205642
Publication date
Aug 16, 2012
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
COMPOUND HAVING CARBAZOLE RING STRUCTURE, AND ORGANIC ELECTROLUMINE...
Publication number
20120175599
Publication date
Jul 12, 2012
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE
Publication number
20120161107
Publication date
Jun 28, 2012
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
COMPOUND HAVING SUBSTITUTED ANTHRACENE RING STRUCTURE AND PYRIDOIND...
Publication number
20120126220
Publication date
May 24, 2012
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
COMPOUND HAVING SUBSTITUTED ANTHRACENE RING STRUCTURE AND PYRIDOIND...
Publication number
20110175079
Publication date
Jul 21, 2011
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
ORGANIC ELECTROLUMINESCENT DEVICE
Publication number
20110073852
Publication date
Mar 31, 2011
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
COMPOUND HAVING SUBSTITUTED PYRIDYL GROUP AND PYRIDOINDOLE RING STR...
Publication number
20110006291
Publication date
Jan 13, 2011
Hodogaya Chemical Co. Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
COMPOUND HAVING PYRIDOINDOLE RING STRUCTURE BONDED WITH SUBSTITUTED...
Publication number
20100308322
Publication date
Dec 9, 2010
Hodogaya Chemical Co,. Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
COMPOUND HAVING PYRIDOINDOLE RING STRUCTURE HAVING SUBSTITUTED PYRI...
Publication number
20100230660
Publication date
Sep 16, 2010
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
TETRAMINE COMPOUND AND ORGANIC EL DEVICE
Publication number
20100174115
Publication date
Jul 8, 2010
Hodogaya Chemical Co., Ltd.
Shigeru KUSANO
C07 - ORGANIC CHEMISTRY
Information
Patent Application
TETRAMINE COMPOUND AND ORGANIC EL DEVICE
Publication number
20100171080
Publication date
Jul 8, 2010
Hodogaya Chemical Co., Ltd.
Shigeru KUSANO
C07 - ORGANIC CHEMISTRY
Information
Patent Application
COMPOUND WHEREIN SUBSTITUTED BIPYRIDYL GROUP IS CONNECTED WITH PYRI...
Publication number
20100123388
Publication date
May 20, 2010
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
COMPOUND HAVING OXADIAZOLE RING STRUCTURE BONDED WITH AROMATIC HETE...
Publication number
20090230849
Publication date
Sep 17, 2009
Hodogaya Chemical Co., Ltd.
Tetsuzo Miki
C07 - ORGANIC CHEMISTRY
Information
Patent Application
COMPOUND HAVING THIADIAZOLE RING STRUCTURE SUBSTITUTED WITH PYRIDYL...
Publication number
20090108750
Publication date
Apr 30, 2009
Hodogaya Chemical Co., Ltd.
Norimasa Yokoyama
C07 - ORGANIC CHEMISTRY
Information
Patent Application
M-CARBAZOLYLPHENYL COMPOUNDS
Publication number
20090045726
Publication date
Feb 19, 2009
Hodogaya Chemical Co., Ltd.
Tetsuzo Miki
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Organic EL devices and production process thereof
Publication number
20070293704
Publication date
Dec 20, 2007
DENSO CORPORATION
Tetsuya Kato
H01 - BASIC ELECTRIC ELEMENTS