Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5599971 | Method for producing 1,4-dihydroxy-2-naphthoic acid | Toshio Nakamatsu, Yasuhiro Nishida, Shinichi Watanabe | 1997-02-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5599971 | Method for producing 1,4-dihydroxy-2-naphthoic acid | Toshio Nakamatsu, Yasuhiro Nishida, Shinichi Watanabe | 1997-02-04 |