Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6646164 | Triphenylamine derivative and organic electroluminescence device comprising the same | Nobuyuki Okuda, Yoshinobu Ueba | 2003-11-11 |
| 6641647 | Hydrogen-permeable structure and method of manufacturing the same | Kentaro Yoshida, Nobuyuki Okuda, Takeshi Hikata | 2003-11-04 |
| 6572683 | Substance separation structure and method of preparing the same | Kentaro Yoshida, Takeshi Hikata, Nobuyuki Okuda | 2003-06-03 |