Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6143369 | Process of impregnating substrate and impregnated substrate | Yoshihisa Sugawa, Yasuo Tohrin, Yoshinobu Marumoto, Ken-ichi Shinotani, Kohei Kotera +3 more | 2000-11-07 |