Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5175309 | Preparation process of N-substituted maleimides | Ryuichiro Tsumura, Teruo Muraishi | 1992-12-29 |
| 4202766 | Process for removing oil particles from waste water containing the same | Hiroshi Ono, Toyoyasu Saida | 1980-05-13 |