Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6007965 | Photopolymerizable compositions including squarylium compounds | Tsuguo Yamaoka, Kenichi Koseki, Ikuo Shimizu, Yukiyoshi Ito, Hitoshi Kawato | 1999-12-28 |
| 5756258 | Photopolymerizable composition containing an addition polymerizable compound, a radical-producing agent and a squarylium compound | Tsuguo Yamaoka, Kenichi Koseki, Ikuo Shimizu, Yukiyoshi Ito, Hitoshi Kawato | 1998-05-26 |
| 5527659 | Chemical amplification resist composition containing photochemical acid generator, binder and squarylium compound | Tsuguo Yamaoka, Kenichi Koseki, Ikuo Shimizu, Yukiyoshi Ito | 1996-06-18 |