Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6403828 | Method of refining crystalline material | Hiroyuki Kuwahara, Kazuyoshi Horibe, Masakazu Takeuchi, Yukio Akimaru | 2002-06-11 |
| 6211404 | Method of refining benzoic acid | Hiroyuki Kuwahara, Yuji Arifuku, Kazuyoshi Horibe, Masakazu Takeuchi, Haruki Kawano | 2001-04-03 |