Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10488586 | Glass light-guide plate and manufacturing method thereof | Hyun-Jin Shim, Chang Hee Lee, Byung-Kook Choi, Du-Sun Hwang | 2019-11-26 |
| 10207950 | Glass light guiding plate | Chang Hee Lee, Hyun-Jin Shim, Byung-Kook Choi | 2019-02-19 |