Patent | Date |
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Organic electroluminescence device Grant 11,056,653 - Yokoyama , et al. July 6, 2 | 2021-07-06 |
Organic electroluminescent device Grant 10,818,844 - Yokoyama , et al. October 27, 2 | 2020-10-27 |
Organic Electroluminescence Device App 20200328353 - YOKOYAMA; NORIMASA ;   et al. | 2020-10-15 |
Compound having substituted triphenylene ring structure, and organic electroluminescent device Grant 10,797,242 - Adachi , et al. October 6, 2 | 2020-10-06 |
Organic electroluminescent device Grant 10,593,884 - Yokoyama , et al. | 2020-03-17 |
Pyrimidine derivative and organic electroluminescent devices Grant 10,566,543 - Yokoyama , et al. Feb | 2020-02-18 |
Compound having substituted bipyridyl group and pyridoinodole ring structure, and organic electroluminescent device Grant 10,541,369 - Yokoyama , et al. Ja | 2020-01-21 |
Organic electroluminescence device Grant 10,505,119 - Yokoyama , et al. Dec | 2019-12-10 |
Organic electroluminescent device Grant 10,497,876 - Yokoyama , et al. De | 2019-12-03 |
Organic Electroluminescent Device App 20190115542 - Yokoyama; Norimasa ;   et al. | 2019-04-18 |
Organic Electroluminescence Element App 20190051838 - YOKOYAMA; NORIMASA ;   et al. | 2019-02-14 |
Pyrimidine derivatives and organic electroluminescent devices Grant 10,096,779 - Yokoyama , et al. October 9, 2 | 2018-10-09 |
Compound having triphenylsilyl group and triarylamine structure, and organic electroluminescent device Grant 10,059,725 - Yokoyama , et al. August 28, 2 | 2018-08-28 |
Compound having substituted triphenylene ring structure, and organic electroluminescent device Grant 10,026,903 - Adachi , et al. July 17, 2 | 2018-07-17 |
Indenoindole derivative and organic electroluminescent element Grant 9,985,216 - Nagaoka , et al. May 29, 2 | 2018-05-29 |
Compound having acridan ring structure, and organic electroluminescent device Grant 9,905,770 - Yokoyama , et al. February 27, 2 | 2018-02-27 |
Organic Electroluminescence Device App 20180026198 - YOKOYAMA; Norimasa ;   et al. | 2018-01-25 |
Organic Electroluminescent Device App 20180006235 - Yokoyama; Norimasa ;   et al. | 2018-01-04 |
Pyrimidine Derivative And Organic Electroluminescent Devices App 20180006239 - YOKOYAMA; Norimasa ;   et al. | 2018-01-04 |
Organic Electroluminescent Device App 20170346009 - Yokoyama; Norimasa ;   et al. | 2017-11-30 |
Compound Having Substituted Triphenylene Ring Structure, And Organic Electroluminescent Device App 20170338417 - Adachi; Chihaya ;   et al. | 2017-11-23 |
Compound having acridan ring structure, and organic electroluminescent device Grant 9,818,949 - Yokoyama , et al. November 14, 2 | 2017-11-14 |
Compound Having Substituted Triphenylene Ring Structure, And Organic Electroluminescent Device App 20170271595 - Adachi; Chihaya ;   et al. | 2017-09-21 |
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 |
Phosphorescent organic light emitting devices combined with hole transport material having high operating stability Grant 9,705,092 - Yamamoto , et al. July 11, 2 | 2017-07-11 |
Phosphorescent organic light emitting devices having a hole transporting cohost material in the emissive region Grant 9,705,099 - Adamovich , et al. July 11, 2 | 2017-07-11 |
Organic Electroluminescent Device App 20170179398 - YOKOYAMA; Norimasa ;   et al. | 2017-06-22 |
Compound having substituted triphenylene ring structure, and organic electroluminescent device Grant 9,685,612 - Adachi , et al. June 20, 2 | 2017-06-20 |
Organic Electroluminescent Device App 20170117481 - Kabasawa; Naoaki ;   et al. | 2017-04-27 |
Compounds having bipyridyl group and carbazole ring, and organic electroluminescent element Grant 9,634,258 - Yokoyama , et al. April 25, 2 | 2017-04-25 |
Compound having an indolocarbazole ring structure and organic electroluminescent device Grant 9,564,600 - Yokoyama , et al. February 7, 2 | 2017-02-07 |
Organic electroluminescent device Grant 9,553,272 - Yokoyama , et al. January 24, 2 | 2017-01-24 |
Arylamine compound useful in an organic electroluminescent device Grant 9,525,140 - Yokoyama , et al. December 20, 2 | 2016-12-20 |
Organic electroluminescent device Grant 9,444,055 - Yokoyama , et al. September 13, 2 | 2016-09-13 |
Dicarbazole Derivatives And Organic Electroluminescent Devices App 20160155955 - YOKOYAMA; Norimasa ;   et al. | 2016-06-02 |
Indenoindole Derivative And Organic Electroluminescent Element App 20160126468 - NAGAOKA; Makoto ;   et al. | 2016-05-05 |
Organic Electroluminescent Device App 20160126464 - Yokoyama; Norimasa ;   et al. | 2016-05-05 |
Organic Electroluminescent Device App 20160118591 - Yokoyama; Norimasa ;   et al. | 2016-04-28 |
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 Pyrimidine Derivatives And Organic Electroluminescent Devices App 20160087215 - YOKOYAMA; Norimasa ;   et al. | 2016-03-24 |
Method of producing aromatic amino compounds Grant 9,238,624 - Yokoyama , et al. January 19, 2 | 2016-01-19 |
Organic Electroluminescent Device App 20150380657 - Yokoyama; Norimasa ;   et al. | 2015-12-31 |
Compound having indenocarbazole ring structure, and organic electroluminescent device Grant 9,196,837 - Yokoyama , et al. November 24, 2 | 2015-11-24 |
Compound having triphenylamine structure, and organic electroluminescent device Grant 9,196,839 - Yokoyama , et al. November 24, 2 | 2015-11-24 |
Compound Having Indenoacridan Ring Structure, And Organic Electroluminescent Device App 20150249218 - Yokoyama; Norimasa ;   et al. | 2015-09-03 |
Benzotriazole derivatives and organic electroluminescent devices using the derivatives Grant 9,123,897 - Yokoyama , et al. September 1, 2 | 2015-09-01 |
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 benzotriazole ring structure and organic electroluminescent element Grant 9,005,776 - Yokoyama , et al. April 14, 2 | 2015-04-14 |
Compound Having Acridan Ring Structure, And Organic Electroluminescent Device App 20150060803 - Yokoyama; Norimasa ;   et al. | 2015-03-05 |
Compound Having Acridan Ring Structure, And Organic Electroluminescent Device App 20150048351 - Yokoyama; Norimasa ;   et al. | 2015-02-19 |
Novel Triphenylene Derivatives And Organic Electroluminescent Devices Using Said Derivatives App 20150034924 - Yokoyama; Norimasa ;   et al. | 2015-02-05 |
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 |
Novel Benzotriazole Derivatives And Organic Electroluminescent Devices Using The Derivatives App 20140374721 - Yokoyama; Norimasa ;   et al. | 2014-12-25 |
Phosphorescent Organic Light Emitting Devices Having A Hole Transporting Cohost Material In The Emissive Region App 20140374728 - Adamovich; Vadim ;   et al. | 2014-12-25 |
Phosphorescent Organic Light Emitting Devices Combined With Hole Transport Material Having High Operating Stability App 20140339518 - Yamamoto; Hitoshi ;   et al. | 2014-11-20 |
Compound having acridan ring structure, and organic electroluminescent device Grant 8,852,759 - Yokoyama , et al. October 7, 2 | 2014-10-07 |
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 |
Method Of Producing Aromatic Amino Compounds App 20140163232 - YOKOYAMA; Norimasa ;   et al. | 2014-06-12 |
Compound having a substituted anthracene ring structure and pyridoindole ring structure, and organic electroluminescent device Grant 8,748,014 - Yokoyama , et al. June 10, 2 | 2014-06-10 |
Method of producing aromatic amino compounds Grant 8,735,626 - Yokoyama , et al. May 27, 2 | 2014-05-27 |
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 |
Compound Having An Indolocarbazole Ring Structure And Organic Electroluminescent Device App 20140124756 - Yokoyama; Norimasa ;   et al. | 2014-05-08 |
Organic electroluminescent device containing arylamine compound and bipyridyl compound Grant 8,716,698 - Yokoyama , et al. May 6, 2 | 2014-05-06 |
Compound Having Triazole Ring Structure Substituted With Pyridyl Group And Organic Electroluminescent Device App 20140048787 - MIKI; Tetsuzo ;   et al. | 2014-02-20 |
Compound Having Acridan Ring Structure, And Organic Electroluminescent Device App 20140042425 - Yokoyama; Norimasa ;   et al. | 2014-02-13 |
Arylamine Compound Useful In An Organic Electroluminescent Device App 20140039221 - YOKOYAMA; Norimasa ;   et al. | 2014-02-06 |
Compound Having Substituted Triphenylene Ring Structure, And Organic Electroluminescent Device App 20140034936 - Adachi; Chihaya ;   et al. | 2014-02-06 |
Substituted bipyridyl compound and organic electroluminescent device Grant 8,642,189 - Yokoyama , et al. February 4, 2 | 2014-02-04 |
Organic Electroluminescent Device App 20140021451 - Yokoyama; Norimasa ;   et al. | 2014-01-23 |
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 |
Compounds Having Bipyridyl Group And Carbazole Ring, And Organic Electroluminescent Element App 20130328041 - 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 Bipyridyl Group And Pyridoinodole Ring Structure, And Organic Electroluminescent Device App 20130292663 - Yokoyama; Norimasa ;   et al. | 2013-11-07 |
Compound Having Triazole Ring Structure Substituted With Pyridyl Group And Organic Electroluminescent Device App 20130285025 - MIKI; Tetsuzo ;   et al. | 2013-10-31 |
Compound Having Indenocarbazole Ring Structure, And Organic Electroluminescent Device App 20130126856 - Yokoyama; Norimasa ;   et al. | 2013-05-23 |
Compound Having Carbazole Ring Structure, And Organic Electroluminescent Device App 20130112950 - Yokoyama; Norimasa ;   et al. | 2013-05-09 |
Compound Having Acridan Ring Structure, And Organic Electroluminescent Device App 20130075715 - Yokoyama; Norimasa ;   et al. | 2013-03-28 |
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 |
Substituted Pyridyl Compound And Organic Electroluminescent Element App 20120319098 - Yokoyama; Norimasa ;   et al. | 2012-12-20 |
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 Having A Substituted Anthracene Ring Structure And Pyridoindole Ring Structure, And Organic Electroluminescent Device App 20120228598 - Yokoyama; Norimasa ;   et al. | 2012-09-13 |
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 |
Arylamine compound and organic electroluminescence device Grant 8,227,096 - Miki , et al. July 24, 2 | 2012-07-24 |
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 |
Compound Having Benzotriazole Ring Structure And Organic Electroluminescent Element App 20120012831 - Yokoyama; Norimasa ;   et al. | 2012-01-19 |
Compound Having Triazole Ring Structure To Which Pyridyl Group Is Bonded, And Organic Electroluminescent Device App 20110272679 - Yokoyama; Norimasa ;   et al. | 2011-11-10 |
m-carbazolylphenyl compounds Grant 8,053,092 - Miki , et al. November 8, 2 | 2011-11-08 |
Method Of Producing Aromatic Amino Compounds App 20110257404 - Yokoyama; Norimasa ;   et al. | 2011-10-20 |
Compound Having Triphenylsilyl Group And Triarylamine Structure, And Organic Electroluminescent Device App 20110220881 - Yokoyama; Norimasa ;   et al. | 2011-09-15 |
Compound Having Substituted Anthracene Ring Structure And Pyridoindole Ring Structure And Organic Electroluminescence Device App 20110175079 - Yokoyama; Norimasa ;   et al. | 2011-07-21 |
Process for producing N,N'-carbonyldiimidazole Grant 7,964,626 - Aoki , et al. June 21, 2 | 2011-06-21 |
Arylamine Compound And Organic Electroluminescence Device App 20110133171 - Miki; Tetsuzo ;   et al. | 2011-06-09 |
Organic Electroluminescent Device App 20110073852 - Yokoyama; Norimasa ;   et al. | 2011-03-31 |
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 |
Arylamine compound and organic electroluminescence device Grant 7,867,632 - Miki , et al. January 11, 2 | 2011-01-11 |
Substituted Bipyridyl Compound And Organic Electroluminescent Device App 20110001129 - Yokoyama; Norimasa ;   et al. | 2011-01-06 |
Compound Having Pyridoindole Ring Structure Bonded With Substituted Pyridyl Group, And Organic Electroluminescent Device App 20100308322 - Yokoyama; Norimasa ;   et al. | 2010-12-09 |
Compound Having Pyridoindole Ring Structure Having Substituted Pyridyl Group Attached Thereto, And Organic Electroluminescence Element App 20100230660 - Yokoyama; Norimasa ;   et al. | 2010-09-16 |
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 Triazine Ring Structure Substituted With Pyridyl Group And Organic Electroluminescent Device App 20100090588 - Yokoyama; Norimasa ;   et al. | 2010-04-15 |
Arylamine Compound And Organic Electroluminescence Device App 20090278442 - Miki; Tetsuzo ;   et al. | 2009-11-12 |
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 |
Compound Having Triazole Ring Structure Substituted With Pyridyl Group And Organic Electroluminescent Device App 20090102361 - Miki; Tetsuzo ;   et al. | 2009-04-23 |
Process For Producing N,N'-Carbonyldiimidazole App 20090088575 - Aoki; Yoshikazu ;   et al. | 2009-04-02 |
M-carbazolylphenyl Compounds App 20090045726 - Miki; Tetsuzo ;   et al. | 2009-02-19 |