Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6204394 | Method for preparing oxy-diphthalic anhydrides | Junichi Sakata, Shinsuke Inoue | 2001-03-20 |
| 5532322 | Process for preparing brominated polystyrene | Kiyoshi Mishima, Akihisa Takahasi, Akira Taniuchi | 1996-07-02 |