Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6007965 | Photopolymerizable compositions including squarylium compounds | Tsuguo Yamaoka, Kenichi Koseki, Mitsuharu Obara, Ikuo Shimizu, 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, Mitsuharu Obara, Ikuo Shimizu, Hitoshi Kawato | 1998-05-26 |
| 5660970 | Optical information recording medium using a squarylium compound | Ikuo Shimizu, Hiroshi Toyoda, Tsutomu Sato | 1997-08-26 |
| 5527659 | Chemical amplification resist composition containing photochemical acid generator, binder and squarylium compound | Tsuguo Yamaoka, Kenichi Koseki, Mitsuharu Obara, Ikuo Shimizu | 1996-06-18 |
| 5510229 | Optical information recording medium using squarylium compounds | Tsutomu Satoh, Ikuo Shimizu | 1996-04-23 |
| 5391741 | Squarylium compound and optical information recording medium using the same | Ikuo Shimizu, Hiroshi Toyoda, Tsutomu Sato | 1995-02-21 |
| 5256794 | Squarylium compounds | Tsutomu Satoh, Ikuo Shimizu | 1993-10-26 |
| 5149819 | Squarylium compounds and optical information recording medium using the same | Tsutomu Satoh, Ikuo Shimizu | 1992-09-22 |
| 5142001 | Polyurethane composition | Masahiko Yasuda, Shigeo Hosokawa, Yorozu Yokomori, Koji Hisamura | 1992-08-25 |
| 5085909 | Squarylium compounds and optical information recording medium using the same | Tsutomu Satoh, Ikuo Shimizu | 1992-02-04 |
| 4783403 | Process for producing l-phenylalanine | Kazumi Araki, Toshitsugu Ozeki, Shuichi Ishino, Hideharu Anazawa, Shigeru Kamimori | 1988-11-08 |
| 4250328 | Method for separation of an ester from a reaction mixture | Kiyoshi Fujita, Shigeru Kamimori | 1981-02-10 |