Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6670052 | Organic light emitting diode | Hidekazu Hirose, Daisuke Okuda, Hirohito Yoneyama, Mieko Seki, Kiyokazu Mashimo +1 more | 2003-12-30 |
| 6652995 | Organic electroluminescence device | Mieko Seki, Daisuke Okuda, Hirohito Yoneyama, Hidekazu Hirose, Kiyokazu Mashimo +1 more | 2003-11-25 |
| 6517961 | Electrostatic charge regulator, method for making same, and image forming method using same | Noriaki Yamazaki, Kei Shimotani | 2003-02-11 |