Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5607988 | Stabilized polymeric material composition | Yutaka Nakahara, Kouzaburo Shinpo | 1997-03-04 |
| 5455347 | Piperidine compounds | Yutaka Nakahara, Kouzaburo Shinpo | 1995-10-03 |