Patent | Date |
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Organic Electroluminescent Device App 20190115542 - Yokoyama; Norimasa ;   et al. | 2019-04-18 |
Indenoindole derivative and organic electroluminescent element Grant 9,985,216 - Nagaoka , et al. May 29, 2 | 2018-05-29 |
Naphthotriazole derivatives and organic electroluminescence devices Grant 9,871,210 - Nagaoka , et al. January 16, 2 | 2018-01-16 |
Benzotriazole derivative and an organic electroluminescent device Grant 9,842,999 - Nagaoka , et al. December 12, 2 | 2017-12-12 |
Benzopyridoindole derivative and organic electroluminescent element Grant 9,837,620 - Nagaoka , et al. December 5, 2 | 2017-12-05 |
Compound having substituted anthracene ring structure and pyridoindole ring structure, and organic electroluminescent device Grant 9,755,152 - Yokoyama , et al. September 5, 2 | 2017-09-05 |
Compound having carbazole ring structure, and organic electroluminescent device Grant 9,732,036 - Yokoyama , et al. August 15, 2 | 2017-08-15 |
Arylamine compound useful in an organic electroluminescent device Grant 9,525,140 - Yokoyama , et al. December 20, 2 | 2016-12-20 |
Benzofuroindole Derivative And Organic Electroluminescence Device App 20160351823 - NAGAOKA; Makoto ;   et al. | 2016-12-01 |
Organic electroluminescent device Grant 9,444,055 - Yokoyama , et al. September 13, 2 | 2016-09-13 |
Benzopyridoindole Derivative And Organic Electroluminescent Element App 20160254458 - NAGAOKA; Makoto ;   et al. | 2016-09-01 |
A Benzotriazole Derivative And An Organic Electroluminescent Device App 20160164001 - NAGAOKA; Makoto ;   et al. | 2016-06-09 |
Indenoindole Derivative And Organic Electroluminescent Element App 20160126468 - NAGAOKA; Makoto ;   et al. | 2016-05-05 |
Organic electroluminescent device Grant 9,306,175 - Yokoyama , et al. April 5, 2 | 2016-04-05 |
Organic electroluminescent device Grant 9,306,174 - Yokoyama , et al. April 5, 2 | 2016-04-05 |
Novel Naphthotriazole Derivatives And Organic Electroluminescence Devices App 20160005982 - NAGAOKA; Makoto ;   et al. | 2016-01-07 |
Compound having triphenylamine structure, and organic electroluminescent device Grant 9,196,839 - Yokoyama , et al. November 24, 2 | 2015-11-24 |
Compound Having Substituted Anthracene Ring Structure And Pyridoindole Ring Structure, And Organic Electroluminescent Device App 20150155496 - Yokoyama; Norimasa ;   et al. | 2015-06-04 |
Compound having substituted anthracene ring structure and pyridoindole ring structure, and organic electroluminescent device Grant 8,927,119 - Yokoyama , et al. January 6, 2 | 2015-01-06 |
Organic Electroluminescent Device App 20140225100 - Yokoyama; Norimasa ;   et al. | 2014-08-14 |
Organic electroluminescent device Grant 8,771,841 - Yokoyama , et al. July 8, 2 | 2014-07-08 |
Compound having pyridoindole ring structure having substituted pyridyl group attached thereto, and organic electroluminescence element Grant 8,722,209 - Yokoyama , et al. May 13, 2 | 2014-05-13 |
Organic electroluminescent device containing arylamine compound and bipyridyl compound Grant 8,716,698 - Yokoyama , et al. May 6, 2 | 2014-05-06 |
Arylamine Compound Useful In An Organic Electroluminescent Device App 20140039221 - YOKOYAMA; Norimasa ;   et al. | 2014-02-06 |
Compound having pyridoindole ring structure bonded with substituted pyridyl group, and organic electroluminescent device Grant 8,624,228 - Yokoyama , et al. January 7, 2 | 2014-01-07 |
Compound Having Substituted Anthracene Ring Structure And Pyridoindole Ring Structure And Organic Electroluminescence Device App 20130341604 - YOKOYAMA; Norimasa ;   et al. | 2013-12-26 |
Organic Electroluminescent Device App 20130328040 - Yokoyama; Norimasa ;   et al. | 2013-12-12 |
Compound having substituted anthracene ring structure and pyridoindole ring structure and organic electroluminescence device Grant 8,586,210 - Yokoyama , et al. November 19, 2 | 2013-11-19 |
Compound having substituted pyridyl group and pyridoindole ring structure linked through phenylene group, and organic electroluminescent device Grant 8,377,573 - Yokoyama , et al. February 19, 2 | 2013-02-19 |
Compound Having Pyridoindole Ring Structure Having Substituted Pyridyl Group Attached Thereto, And Organic Electroluminescence Element App 20120298969 - YOKOYAMA; Norimasa ;   et al. | 2012-11-29 |
Compound Having Triphenylamine Structure, And Organic Electroluminescent Device App 20120292609 - Yokoyama; Norimasa ;   et al. | 2012-11-22 |
Organic Electroluminescent Device App 20120273767 - Yokoyama; Norimasa ;   et al. | 2012-11-01 |
Compound wherein substituted bipyridyl group is connected with pyridoindole ring structure through phenylene group, and organic electroluminescent device Grant 8,252,431 - Yokoyama , et al. August 28, 2 | 2012-08-28 |
Compound having oxadiazole ring structure bonded with aromatic heterocyclic ring and organic electroluminescent device Grant 8,247,087 - Miki , et al. August 21, 2 | 2012-08-21 |
Organic Electroluminescent Device App 20120205642 - Yokoyama; Norimasa ;   et al. | 2012-08-16 |
Compound Having Carbazole Ring Structure, And Organic Electroluminescent Device App 20120175599 - Yokoyama; Norimasa ;   et al. | 2012-07-12 |
Organic Electroluminescent Device App 20120161107 - Yokoyama; Norimasa ;   et al. | 2012-06-28 |
Compound Having Substituted Anthracene Ring Structure And Pyridoindole Ring Structure, And Organic Electroluminescent Device App 20120126220 - Yokoyama; Norimasa ;   et al. | 2012-05-24 |
Compound having pyridoindole ring structure having substituted pyridyl group attached thereto, and organic electroluminescence element Grant 8,168,308 - Yokoyama , et al. May 1, 2 | 2012-05-01 |
Compound having thiadiazole ring structure substituted with pyridyl group and organic electroluminescent device Grant 8,153,277 - Yokoyama , et al. April 10, 2 | 2012-04-10 |
m-carbazolylphenyl compounds Grant 8,053,092 - Miki , et al. November 8, 2 | 2011-11-08 |
Compound Having Substituted Anthracene Ring Structure And Pyridoindole Ring Structure And Organic Electroluminescence Device App 20110175079 - Yokoyama; Norimasa ;   et al. | 2011-07-21 |
Organic Electroluminescent Device App 20110073852 - Yokoyama; Norimasa ;   et al. | 2011-03-31 |
Tetramine compound and organic EL device Grant 7,902,402 - Kusano , et al. March 8, 2 | 2011-03-08 |
Tetramine compound and organic EL device Grant 7,897,816 - Kusano , et al. March 1, 2 | 2011-03-01 |
Compound Having Substituted Pyridyl Group And Pyridoindole Ring Structure Linked Through Phenylene Group, And Organic Electroluminescent Device App 20110006291 - Yokoyama; Norimasa ;   et al. | 2011-01-13 |
Compound Having Pyridoindole Ring Structure Bonded With Substituted Pyridyl Group, And Organic Electroluminescent Device App 20100308322 - Yokoyama; Norimasa ;   et al. | 2010-12-09 |
Tetramine compound and organic EL device Grant 7,807,274 - Kusano , et al. October 5, 2 | 2010-10-05 |
Compound Having Pyridoindole Ring Structure Having Substituted Pyridyl Group Attached Thereto, And Organic Electroluminescence Element App 20100230660 - Yokoyama; Norimasa ;   et al. | 2010-09-16 |
Tetramine Compound And Organic El Device App 20100171080 - KUSANO; Shigeru ;   et al. | 2010-07-08 |
Tetramine Compound And Organic El Device App 20100174115 - Kusano; Shigeru ;   et al. | 2010-07-08 |
Compound Wherein Substituted Bipyridyl Group Is Connected With Pyridoindole Ring Structure Through Phenylene Group, And Organic Electroluminescent Device App 20100123388 - Yokoyama; Norimasa ;   et al. | 2010-05-20 |
Compound Having Oxadiazole Ring Structure Bonded With Aromatic Heterocyclic Ring And Organic Electroluminescent Device App 20090230849 - Miki; Tetsuzo ;   et al. | 2009-09-17 |
Compound Having Thiadiazole Ring Structure Substituted With Pyridyl Group And Organic Electroluminescent Device App 20090108750 - Yokoyama; Norimasa ;   et al. | 2009-04-30 |
M-carbazolylphenyl Compounds App 20090045726 - Miki; Tetsuzo ;   et al. | 2009-02-19 |
Organic EL devices and production process thereof Grant 7,402,701 - Kato , et al. July 22, 2 | 2008-07-22 |
Organic EL devices and production process thereof App 20070293704 - Kato; Tetsuya ;   et al. | 2007-12-20 |
Tetramine compound and organic el device App 20070149816 - Kusano; Shigeru ;   et al. | 2007-06-28 |