Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6811897 | Ink for forming a hole injection layer of organic EL display devices and manufacturing method thereof, organic EL display devices, and manufacturing method of the same | Katsuyuki Naito, Naoko Kihara, Rei Hasegawa, Yutaka Nakai, Kazushige Yamamoto +3 more | 2004-11-02 |
| 6791655 | Reflective display | Hideyuki Nakao, Hajime Yamaguchi, Yutaka Nakai | 2004-09-14 |