Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7715529 | X-ray tube | Chang Yun Lee, Ki-yeo Kim, Sang Su Hong, Sang Hwa Kim, Kwang-Seok Choi | 2010-05-11 |
| 7312929 | Variable focus liquid lens with reduced driving voltage | Hee Sung Choi, Ha Yong Jung, Jae Young Bae, Jong Yun Kim, Jeong Ho Yoon +1 more | 2007-12-25 |
| 6511390 | Sports ball net assembly | — | 2003-01-28 |
| 6210288 | Golf practice net assembly | — | 2001-04-03 |