Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11040287 | Experience-oriented virtual baseball game apparatus and virtual baseball game control method using the same | — | 2021-06-22 |
| 5874347 | Method for fabricating field oxide isolation region for semiconductor devices | Byung-Ryul Ryum, Tae-Hyeon Han, Soo Min Lee, Deok-Ho Cho | 1999-02-23 |
| 5696020 | Method for fabricating semiconductor device isolation region using a trench mask | Byung-Ryul Ryum, Tae-Hyeon Han, Soo Min Lee, Deok-Ho Cho | 1997-12-09 |
| 5496745 | Method for making bipolar transistor having an enhanced trench isolation | Byung-Ryul Ryum, Tae-Hyeon Han, Soo Min Lee, Deok-Ho Cho, Seong-hearn Lee | 1996-03-05 |
| 5484737 | Method for fabricating bipolar transistor | Byung-Ryul Ryum, Tae-Hyeon Han, Soo Min Lee, Deok-Ho Cho, Seong-hearn Lee | 1996-01-16 |
| 5444014 | Method for fabricating semiconductor device | Byung-Ryul Ryum, Tae-Hyeon Han, Soo Min Lee, Deok-Ho Cho, Seong-hearn Lee | 1995-08-22 |