Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6476227 | Piperidine derivative and process for preparing the same | Kiyoshi Sugi, Nobushige Itaya, Tadashi Katsura, Masami Igi, Taro Ishibashi +3 more | 2002-11-05 |
| 6433168 | Highly pure phenothiazine compound, production method thereof, production method of intermediate therefor, and hydrate and novel crystal as starting materials for the intermediate | Hiroyuki Yumoto, Masami Igi | 2002-08-13 |