Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6379860 | Positive photosensitive composition | Toru Fujimori, Shiro Tan, Toshiaki Aoai | 2002-04-30 |
| 5358824 | Photosensitive resin composition utilizing 1,2-naphthoquinone diazide compound having spirobichroman or spirobiindane ring | Shiro Tan, Yoshimasa Aotani, Fumiyuki Nishiyama | 1994-10-25 |
| 4925768 | Photopolymerizable composition containing a tetrapolymer binder | Masayuki Iwasaki, Sadao Fujikura, Yuichi Wakata | 1990-05-15 |