Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6762553 | Substrate for light emitting device, light emitting device and process for production of light emitting device | Hiroshi Yokogawa, Tetsuo Tsutsui, Kenji Tsubaki, Kenji Kawano | 2004-07-13 |
| 6740416 | Aerogel substrate and method for preparing the same | Hiroshi Yokogawa, Kenji Tsubaki, Kenji Kawano, Kenji Sonoda | 2004-05-25 |