Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6294056 | Distillation method and distillation apparatus | Yukihiro Matsumoto, Osamu Dodo, Hiroo Iwato, Mamoru Takamura | 2001-09-25 |
| 6214174 | Purifier and purifying method for polymerizable organic compounds | Hajime Matsumoto | 2001-04-10 |