Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5138104 | Process for producing dihydric phenols | Katsuji Takahashi, Takayuki Akiyama | 1992-08-11 |
| 4948916 | Process for producing aminooxyacetic acid salts | Youichirou Tani | 1990-08-14 |