Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9837615 | Nitrogen-containing heterocyclic derivative, organic electroluminescence element material using same, and organic electroluminescence element and electronic device using same | Masahiro Kawamura, Yumiko Mizuki, Hirokatsu Ito, Tomoharu HAYAMA | 2017-12-05 |