Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6664364 | Selenium-containing transparent optical material | Koju Okazaki, Mamoru Tanaka, Shiro Honma, Hiroyuki Morijiri, Masahiko Kusumoto | 2003-12-16 |
| 6596841 | Polythiol, polymerizable composition, resin and lens, and process for preparing thiol compound | Mamoru Tanaka, Shigetoshi Kuma, Seiichi Kobayashi | 2003-07-22 |