Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6596836 | Polyisocyanate compounds, process for producing the same, and optical materials using the same | Yoshitaka Kitahara | 2003-07-22 |
| 6559276 | Asymmetric disulfide compounds, method for producing the same, and optical products | Tsuyoshi Okubo | 2003-05-06 |