Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5903398 | Zoom lens system | — | 1999-05-11 |
| 5796529 | Fast photographic lens system | — | 1998-08-18 |
| 5790324 | Wide-angle photographic lens system | — | 1998-08-04 |
| 5663331 | Cephalosporin compounds | Kee-won Kim, Jae-Hoon Kang | 1997-09-02 |