Issued Patents All Time
Showing 26–50 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10497876 | Organic electroluminescent device | Norimasa Yokoyama, Takeshi Yamamoto, Naoaki Kabasawa, Daizou Kanda, Shunji Mochizuki +4 more | 2019-12-03 |
| 10424742 | Organic electroluminescent device | Daizou Kanda, Shunji Mochiduki, Se-Jin Lee, Oun-Gyu Lee, Bong-ki SHIN | 2019-09-24 |
| 10326079 | Organic electroluminescent device | Shunji Mochizuki, Takeshi Yamamoto, Naoaki Kabasawa | 2019-06-18 |
| 10276800 | Organic electroluminescence device having at least an a node, a hole injection layer, a first hole transport layer. A second hole transport layer a luminous layer, an electron transport layer, and a cathode | Daizo Kanda, Kazunori Togashi | 2019-04-30 |
| 10096779 | Pyrimidine derivatives and organic electroluminescent devices | Norimasa Yokoyama, Naoaki Kabasawa, Jeong Soo Kim | 2018-10-09 |
| 10059725 | Compound having triphenylsilyl group and triarylamine structure, and organic electroluminescent device | Norimasa Yokoyama, Yoshio Taniguchi, Musubu Ichikawa, Shinichi Matsuki | 2018-08-28 |
| 9905775 | Organic electroluminescent device | Naoaki Kabasawa, Shunji Mochiduki, Se-Jin Lee, Oun-Gyu Lee, Bong-ki SHIN | 2018-02-27 |
| 9882136 | Organic electroluminescent device | Makoto Nagaoka, Motonori Tsuji, Yoshikazu Aoki | 2018-01-30 |
| 9755152 | Compound having substituted anthracene ring structure and pyridoindole ring structure, and organic electroluminescent device | Norimasa Yokoyama, Naoaki Kabasawa, Daizou Kanda, Shigeru Kusano | 2017-09-05 |
| 9564600 | Compound having an indolocarbazole ring structure and organic electroluminescent device | Norimasa Yokoyama, Makoto Nagaoka, Sawa Izumi, Hiroshi Ookuma | 2017-02-07 |
| 9553272 | Organic electroluminescent device | Norimasa Yokoyama, Eiji Takahashi, Daizou Kanda, Hiroshi Ookuma | 2017-01-24 |
| 9525140 | Arylamine compound useful in an organic electroluminescent device | Norimasa Yokoyama, Shigeru Kusano | 2016-12-20 |
| 9444055 | Organic electroluminescent device | Norimasa Yokoyama, Eiji Takahashi, Shigeru Kusano | 2016-09-13 |
| 9123897 | Benzotriazole derivatives and organic electroluminescent devices using the derivatives | Norimasa Yokoyama, Shigetaka Numazawa, Shirou Irisa | 2015-09-01 |
| 9005776 | Compound having benzotriazole ring structure and organic electroluminescent element | Norimasa Yokoyama, Naoaki Kabasawa, Yoshio Taniguchi, Musubu Ichikawa, Shunji Mochiduki | 2015-04-14 |
| 8927119 | Compound having substituted anthracene ring structure and pyridoindole ring structure, and organic electroluminescent device | Norimasa Yokoyama, Naoaki Kabasawa, Daizou Kanda, Shigeru Kusano | 2015-01-06 |
| 8771841 | Organic electroluminescent device | Norimasa Yokoyama, Shigeru Kusano | 2014-07-08 |
| 8748014 | Compound having a substituted anthracene ring structure and pyridoindole ring structure, and organic electroluminescent device | Norimasa Yokoyama, Kouki KASE, Hiroshi Ohkuma, Eiji Takahashi, Daizou Kanda | 2014-06-10 |
| 8722209 | Compound having pyridoindole ring structure having substituted pyridyl group attached thereto, and organic electroluminescence element | Norimasa Yokoyama, Shigeru Kusano | 2014-05-13 |
| 8716698 | Organic electroluminescent device containing arylamine compound and bipyridyl compound | Norimasa Yokoyama, Shigeru Kusano | 2014-05-06 |
| 8642189 | Substituted bipyridyl compound and organic electroluminescent device | Norimasa Yokoyama, Makoto Nagaoka, Yoshio Taniguchi, Musubu Ichikawa | 2014-02-04 |
| 8624228 | Compound having pyridoindole ring structure bonded with substituted pyridyl group, and organic electroluminescent device | Norimasa Yokoyama, Sawa Izumi, Shigeru Kusano | 2014-01-07 |
| 8586210 | Compound having substituted anthracene ring structure and pyridoindole ring structure and organic electroluminescence device | Norimasa Yokoyama, Sawa Izumi, Naoaki Kabasawa, Shigeru Kusano | 2013-11-19 |
| 8377573 | Compound having substituted pyridyl group and pyridoindole ring structure linked through phenylene group, and organic electroluminescent device | Norimasa Yokoyama, Sawa Izumi, Shigeru Kusano | 2013-02-19 |
| 8252431 | Compound wherein substituted bipyridyl group is connected with pyridoindole ring structure through phenylene group, and organic electroluminescent device | Norimasa Yokoyama, Shigeru Kusano, Makoto Nagaoka | 2012-08-28 |