Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6995276 | Cyclic disulfide compound, process of producing the same and optical product comprising the same | Tsuyoshi Okubo | 2006-02-07 |
| 6706894 | Thiol compound, method for producing the same and optical product made with the same | Tsuyoshi Okubo | 2004-03-16 |
| 6696540 | Episulfide compound, method for producing the same and optical product comprising the same | Tsuyoshi Okubo | 2004-02-24 |