Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6322947 | Photosensitive composition for sandblasting and photosensitive film laminate comprising the same | Ryuma Mizusawa, Shinkichi Asahi, Hiroyuki Obiya | 2001-11-27 |
| 4933260 | Water based photopolymerizable resin composition | Naoya Katsumata, Katsuyuki Ohta, Toshimi Aoyama | 1990-06-12 |