Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646284 | Polarizable phenanthroline complex crystal having improved stability to heat and moisture | Arimitsu Usuki, Hisato Takeuchi, Narihito Tatsuda, Akane Okada, Toshio Kurauchi +4 more | 1997-07-08 |