Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5879591 | Process for production of photochromic cured product | Hironobu Nagoh, Satoshi Imura | 1999-03-09 |
| 5462698 | Photochromic composition | Takashi Kobayakawa, Satoshi Imura, Kazuhiko Kuramoto | 1995-10-31 |
| 5395566 | Photochromic composition | Takashi Kobayakawa, Satoshi Imura, Kazuhiko Kuramoto | 1995-03-07 |