Issued Patents All Time
Showing 151–154 of 154 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6369991 | Head drum apparatus | Do Young Choi, Young-Ho Cho, Hyeong-Seok Choi, Chung-hum Baik, Seung Woo Lee +1 more | 2002-04-09 |
| 5265878 | Color association game apparatus | — | 1993-11-30 |
| 5238498 | Open tube-type impurity-diffusion apparatus for simultaneously diffusing impurities into a plurality of wafers subjected to a common environment, for producing a mass of semiconductor chips | Dong-Soo Bang | 1993-08-24 |
| 5003357 | Semiconductor light emitting device | Bun-Joong Kim | 1991-03-26 |