Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6218548 | Production process of cyclic compound | Toshifumi Akiba, Tutomu Ebata, Tatsuru Saito, Sadahiro Shimizu, Keiichi Hirai +1 more | 2001-04-17 |
| 6013806 | Production process of cyclic compound | Toshifumi Akiba, Tutomu Ebata, Tatsuru Saito, Sadahiro Shimizu, Keiichi Hirai +1 more | 2000-01-11 |
| 5856518 | Production process of cyclic compound | Toshifumi Akiba, Tutomu Ebata, Tatsuru Saito, Sadahiro Shimizu, Keiichi Hirai +1 more | 1999-01-05 |