Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12317744 | Compound having a fused-azole ring structure and organic electroluminescent element | Keigo Naito, Taeyoung Kim | 2025-05-27 |
| 11944004 | Organic electroluminescence element | Norimasa Yokoyama, Shuichi Hayashi, Takeshi Yamamoto | 2024-03-26 |
| 11672169 | Organic electroluminescent element | Shunji Mochizuki, Takeshi Yamamoto | 2023-06-06 |
| 11594683 | Organic electroluminescent device | Shuichi Hayashi, Takeshi Yamamoto, Hideyoshi Kitahara | 2023-02-28 |
| 11437583 | Organic electroluminescence device that includes compound having benzoazole structure | Kouki KASE, Shunji Mochizuki, Kazuyuki SURUGA | 2022-09-06 |
| 11217754 | Organic electroluminescence device | Shuichi Hayashi, Shunji Mochiduki, Se-Jin Lee, Oun-Gyu Lee, Bong-ki SHIN | 2022-01-04 |
| 11158811 | Organic electroluminescent device | Shuichi Hayashi, Daizou Kanda, Shunji Mochizuki, Soon-Wook Cha, Sang Woo Park +2 more | 2021-10-26 |
| 11158813 | Organic electroluminescent device | Shuichi Hayashi, Kazuyuki SURUGA, Shunji Mochizuki | 2021-10-26 |
| 11056653 | Organic electroluminescence device | Norimasa Yokoyama, Shuichi Hayashi, Takeshi Yamamoto | 2021-07-06 |
| 10950797 | Organic electroluminescent device | Shuichi Hayashi, Keigo Naito | 2021-03-16 |
| 10892420 | Organic electroluminescent device | Shuichi Hayashi, Soon-Wook Cha, Sang Woo Park, Ju-man Song, Kyung-seok Jeon | 2021-01-12 |
| 10593884 | Organic electroluminescent device | Norimasa Yokoyama, Shuichi Hayashi, Takeshi Yamamoto, Daizou Kanda, Kazunori Togashi +1 more | 2020-03-17 |
| 10566540 | Organic electroluminescent device | Shuichi Hayashi, Hideyoshi Kitahara, Takeshi Yamamoto, Daizou Kanda, Soon-Wook Cha +3 more | 2020-02-18 |
| 10559759 | Organic electroluminescent device | Shuichi Hayashi, Shunji Mochiduki | 2020-02-11 |
| 10505119 | Organic electroluminescence device | Norimasa Yokoyama, Shuichi Hayashi, Takeshi Yamamoto, Daizo Kanda, Shunji Mochiduki +3 more | 2019-12-10 |
| 10497876 | Organic electroluminescent device | Norimasa Yokoyama, Shuichi Hayashi, Takeshi Yamamoto, Daizou Kanda, Shunji Mochizuki +4 more | 2019-12-03 |
| 10326079 | Organic electroluminescent device | Shuichi Hayashi, Shunji Mochizuki, Takeshi Yamamoto | 2019-06-18 |
| 10096779 | Pyrimidine derivatives and organic electroluminescent devices | Norimasa Yokoyama, Shuichi Hayashi, Jeong Soo Kim | 2018-10-09 |
| 9905770 | Compound having acridan ring structure, and organic electroluminescent device | Norimasa Yokoyama, Makoto Nagaoka, Eiji Takahashi | 2018-02-27 |
| 9905775 | Organic electroluminescent device | Shuichi Hayashi, Shunji Mochiduki, Se-Jin Lee, Oun-Gyu Lee, Bong-ki SHIN | 2018-02-27 |
| 9818949 | Compound having acridan ring structure, and organic electroluminescent device | Norimasa Yokoyama, Makoto Nagaoka, Eiji Takahashi | 2017-11-14 |
| 9755152 | Compound having substituted anthracene ring structure and pyridoindole ring structure, and organic electroluminescent device | Norimasa Yokoyama, Shuichi Hayashi, Daizou Kanda, Shigeru Kusano | 2017-09-05 |
| 9705092 | Phosphorescent organic light emitting devices combined with hole transport material having high operating stability | Hitoshi Yamamoto, Michael S. Weaver, Norimasa Yokoyama, Makoto Nagaoka | 2017-07-11 |
| 9705099 | Phosphorescent organic light emitting devices having a hole transporting cohost material in the emissive region | Vadim Adamovich, Hitoshi Yamamoto, Michael S. Weaver, Norimasa Yokoyama, Makoto Nagaoka | 2017-07-11 |
| 9634258 | Compounds having bipyridyl group and carbazole ring, and organic electroluminescent element | Norimasa Yokoyama, Musubu Ichikawa, Sohei Otsuru | 2017-04-25 |