Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5225508 | Optical resin obtained from diethylenically unsaturated monomer | Yutaka Tamura | 1993-07-06 |
| 5191061 | Resin for high-refraction lens containing a sulfur-containing aromatic(meth)acrylate and a mercapto compound | Yukihito Zanka, Seiichiro Hayakawa, Tsutomu Isaka | 1993-03-02 |