Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8039121 | Organic electroluminescence device | Toshihiro Iwakuma, Masahide Matsuura, Hideaki Nagashima, Hiroaki Nakamura, Tadashi Kusumoto | 2011-10-18 |
| 7990046 | Material for organic electroluminescent devices and organic electroluminescent devices made by using the same | Toshihiro Iwakuma, Chishio Hosokawa, Seiji Tomita, Takashi Arakane | 2011-08-02 |
| 7939183 | Material for organic electroluminescent device and organic electroluminescent device using same | Toshihiro Iwakuma, Hisayuki Kawamura, Chishio Hosokawa, Takashi Arakane, Hiroaki Nakamura | 2011-05-10 |
| 7867629 | Nitrogenous heterocyclic derivative and organic electroluminescent element employing the same | Hiroshi Yamamoto, Masahide Matsuura, Mineyuki Kubota, Masahiro Kawamura | 2011-01-11 |