Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5528104 | Metal halide lamp with pleated luminous tube envelope | Dong Ha Kim, Seong Ho Lee | 1996-06-18 |
| 4704346 | Process for the exposure of semiconductor wafer | Tatsumi Hiramoto, Masachika Ohyama, Mitsuo Narita | 1987-11-03 |