Issued Patents 2011
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8058450 | Nitrogenous heterocyclic derivative and organic electroluminescence device making use of the same | Chishio Hosokawa, Hiroshi Yamamoto | 2011-11-15 |
| 8035297 | Organic electroluminescent device with carrier blocking layer interposed between two emitting layers | Hitoshi Kuma, Hisayuki Kawamura, Toshihiro Iwakuma, Chishio Hosokawa | 2011-10-11 |
| 7990046 | Material for organic electroluminescent devices and organic electroluminescent devices made by using the same | Toshihiro Iwakuma, Chishio Hosokawa, Hidetsugu Ikeda, Seiji Tomita | 2011-08-02 |
| 7939183 | Material for organic electroluminescent device and organic electroluminescent device using same | Toshihiro Iwakuma, Hisayuki Kawamura, Hidetsugu Ikeda, Chishio Hosokawa, Hiroaki Nakamura | 2011-05-10 |
| 7879465 | Organic electric-field light-emitting element | Kenichi Fukuoka, Chishio Hosokawa | 2011-02-01 |