Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8624948 | Apparatus and method of detecting horizontal synchronization signal in image forming apparatus | — | 2014-01-07 |
| 6464930 | Furnace of apparatus for manufacturing a semiconductor device having a heat blocker for preventing heat loss during the unloading of wafers | Jae Hyuck An, Chang-Zip Yang, Tae-Chul Kim | 2002-10-15 |
| 6402849 | Process tube having slit type process gas injection portion and hole type waste gas exhaust portion, and apparatus for fabricating semiconductor device | Gyu-hwan Kwag, Ki-Heum Nam | 2002-06-11 |
| 6223096 | Elevator system for transferring a wafer boat with automatic horizontal attitude control | Ki-huem Nam, Sun-woo Kawk | 2001-04-24 |