Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5484872 | Cyclic sulfide compound, polymerizable compositions for optical products and optical products formed thereof | Tetsuyuki Saika, Masafumi Mikami | 1996-01-16 |
| 5446173 | Cyclic sulfide compound, polymerizable compositions for optical products and optical products formed thereof | Tetsuyuki Saika, Masafumi Mikami | 1995-08-29 |
| 5384380 | Polymerizable compositions and high refractive plastic lens obtained therefrom | Kouji Uegami, Keishiro Nagao | 1995-01-24 |