Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6469076 | Chromene compounds | Yasuko Komuro | 2002-10-22 |
| 6362248 | Photochromic polymerizable composition | Tadashi Hara, Yuichiro Kawabata, Hironobu Nagoh | 2002-03-26 |
| 6340765 | Chromene compound | Yuichiro Kawabata | 2002-01-22 |