Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4843093 | Butyrolactone derivatives, process for production thereof and use therefor | Taichi Nakano, Yutaka Oomura | 1989-06-27 |
| 4841083 | Ladder polysilanes | Hideyuki Matsumoto | 1989-06-20 |