Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12139573 | Polymerizable composition for optical members, optical member and eyeglass lens | Masahisa Kousaka, Yukio Kageyama, Yoshio Sano | 2024-11-12 |
| 11506819 | Method for manufacturing optical member | — | 2022-11-22 |
| 10766996 | Method for producing polythiol compound, method for producing curable composition, and method for producing cured product | Yukio Kageyama, Masahisa Kousaka | 2020-09-08 |
| 10752726 | Resin composition | Yukio Kageyama, Masahisa Kousaka | 2020-08-25 |
| 10611726 | Method for producing polythiol compound, method for producing curable composition, and method for producing cured product | Yukio Kageyama, Masahisa Kousaka | 2020-04-07 |
| 10301415 | Polymerizable composition for optical member, optical member, and spectacle lens base | Masahisa Kousaka | 2019-05-28 |
| 8902487 | Photochromic lens | — | 2014-12-02 |