Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6441249 | Method for producing trimethylhydroquinone | Kazuharu Suyama, Tomohiro Konishi, Yasuo Matsumura | 2002-08-27 |
| 6320086 | Method for producing trimethylhydroquinone | Kazuharu Suyama, Tomohiro Konishi, Yasuo Matsumura | 2001-11-20 |
| 6211418 | Method for producing trimethylhydroquinone | Kazuharu Suyama, Tomohiro Konishi, Yasuo Matsumura | 2001-04-03 |