Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11152801 | Energy level conversion circuit for portable energy storage apparatus | Sang Deok Choi, Jungsub Choi | 2021-10-19 |
| 6346834 | Power on reset circuit | — | 2002-02-12 |
| 5761118 | Programming apparatus for analog storage media | — | 1998-06-02 |
| 5606522 | Non-volatile analog memory | — | 1997-02-25 |