Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882665 | High frequency, high power, power supply | Keh-Kun Choi | 1989-11-21 |
| 4839772 | Capacitive discharge electronic ignition system for automobiles | Keh-Kun Choi | 1989-06-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882665 | High frequency, high power, power supply | Keh-Kun Choi | 1989-11-21 |
| 4839772 | Capacitive discharge electronic ignition system for automobiles | Keh-Kun Choi | 1989-06-13 |