Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10529932 | Organic-electroluminescent-element material and organic electroluminescent element using same | Junya Ogawa, Takahiro Kai, Tokiko Ueda, Masashi Tada, Toshihiro Yamamoto | 2020-01-07 |
| 10305048 | Organic-electroluminescent-element material and organic electroluminescent elements using same | Junya Ogawa, Takahiro Kai, Tokiko Ueda, Masashi Tada, Toshihiro Yamamoto | 2019-05-28 |
| 9985219 | Organic electroluminescent element | Rumi Sannomiya, Takahiro Kai, Toshihiro Yamamoto | 2018-05-29 |
| 9716238 | Boron compound for organic electroluminescent elements, and organic electroluminescent element | Rumi Sannomiya, Masashi Tada, Takahiro Kai, Toshihiro Yamamoto | 2017-07-25 |
| 9343685 | Organic electroluminescent element | Takahiro Kai, Toshihiro Yamamoto, Tohru Asari, Takaya Ishiyama, Megumi Matsumoto | 2016-05-17 |
| 9299947 | Organic electroluminescent device having an electron- and /or exciton-blocking layer comprising an indolocarbazole compound | Takahiro Kai, Toshihiro Yamamoto, Kazuaki Yoshimura, Taishi Tsuji, Yasuhiro Takahashi | 2016-03-29 |
| 9290498 | Organic electroluminescent device having an electron- and/or exciton-blocking layer comprising an indolocarbazole compound | Takahiro Kai, Toshihiro Yamamoto, Kazuaki Yoshimura, Taishi Tsuji, Yasuhiro Takahashi +2 more | 2016-03-22 |
| 9260433 | Organic electroluminescent device | Takahiro Kai, Toshihiro Yamamoto, Megumi Matsumoto | 2016-02-16 |
| 9156843 | Organic electroluminescent device comprising an organic layer containing an indolocarbazole compound | Takahiro Kai, Toshihiro Yamamoto, Megumi Matsumoto | 2015-10-13 |
| 9133205 | Organic electroluminescent device | Takahiro Kai, Toshihiro Yamamoto, Megumi Matsumoto | 2015-09-15 |
| 9040962 | Depositing premixed materials | Vadim Adamovich, Michael S. Weaver, Raymond Kwong, Chuanjun Xia, Bert Alleyne +2 more | 2015-05-26 |
| 8962158 | Material having indolocarbazole compound for phosphorescent light-emitting element and organic electroluminescent element using the same | Takahiro Kai, Toshihiro Yamamoto | 2015-02-24 |
| 8859109 | Compound for organic electroluminescent device and organic electroluminescent device using the same | Yuichi Sawada, Takahiro Kai, Toshihiro Yamamoto | 2014-10-14 |
| 8795848 | Indolocarbazole derivative with fused heterocyclic aromatic group for organic electroluminescent device and organic electroluminescent device containing same | Takahiro Kai, Toshihiro Yamamoto | 2014-08-05 |
| 8709614 | Organic metal complex and its use in organic electroluminescent device | Toshihiro Yamamoto, Takahiro Kai, Hiroshi Miyazaki | 2014-04-29 |
| 8703303 | Organic electroluminescent device having a light-emitting layer comprising a host material of two or more compounds | Toshihiro Yamamoto, Takahiro Kai, Taishi Tsuji, Yasuhiro Takahashi, Toshinao Yuki +3 more | 2014-04-22 |
| 8703302 | Indolocarbazole derivative with aromatic phosphne oxide group for organic electroluminescent device and organic electroluminescent device containing same | Takahiro Kai, Toshihiro Yamamoto | 2014-04-22 |
| 8389131 | Material for use in phosphorescent device and organic electroluminescent device using same | Takahiro Kai, Toshihiro Yamamoto, Megumi Matsumoto | 2013-03-05 |
| 8062769 | Indolocarbazole compound for use in organic electroluminescent device and organic electroluminescent device | Takahiro Kai, Toshihiro Yamamoto | 2011-11-22 |
| 8012606 | Heterocyclic compound and organic electroluminescent device using the same | Takahiro Kai, Toshihiro Yamamoto, Masanori Hotta, Yuichi Sawada | 2011-09-06 |
| 8013330 | Compound for organic electroluminescent device and organic electroluminescent device | Toshihiro Yamamoto, Takahiro Kai, Katsuhide Noguchi, Hiroshi Miyazaki | 2011-09-06 |
| 8008657 | Compound for organic electroluminescent device and organic electroluminescent device | Takahiro Kai, Toshihiro Yamamoto, Katsuhide Noguchi, Hiroshi Miyazaki | 2011-08-30 |
| 7993760 | Compound for use in organic electroluminescent device and organic electroluminescent device | Toshihiro Yamamoto, Takahiro Kai, Masanori Hotta | 2011-08-09 |