Issued Patents All Time
Showing 51–68 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7050282 | Power supply clamp circuit | Chien-Hui Chuang, Yi-Hua Chang | 2006-05-23 |
| 7046493 | Input/output buffer protection circuit | Sheng-Hua Chen, Jeng-Huang Wu | 2006-05-16 |
| 6889972 | Banknote dispenser | — | 2005-05-10 |
| 6882188 | Input/output buffer | Sheng-Hua Chen, Jeng-Huang Wu | 2005-04-19 |
| 6862994 | Electric shock gun and electrode bullet | — | 2005-03-08 |
| 6861874 | Input/output buffer | Sheng-Hua Chen, Jeng-Huang Wu | 2005-03-01 |
| 6744610 | Electrostatic discharge protection circuit | Yi-Hua Chang | 2004-06-01 |
| 6719167 | Ticket roll detection arrangement for a ticket vending machine | — | 2004-04-13 |
| 6690561 | Effective gate-driven or gate-coupled ESD protection circuit | Kei-Kang Hung, Chien-Hui Chuang | 2004-02-10 |
| 6677798 | High speed voltage level shifter | Yi-Hwa Chang | 2004-01-13 |
| 6642769 | High speed voltage level shifter with a low input voltage | Yi-Hwa Chang | 2003-11-04 |
| 6568225 | Theftproof lock device for a suitcase | — | 2003-05-27 |
| 6538868 | Electrostatic discharge protective circuit | Yi-Hua Chang, Chih-Fu Chien | 2003-03-25 |
| 6469560 | Electrostatic discharge protective circuit | Yi-Hua Chang, Chih-Fu Chien | 2002-10-22 |
| 6462601 | Electrostatic discharge protection circuit layout | Yi-Hua Chang | 2002-10-08 |
| 6398653 | Baton structure | — | 2002-06-04 |
| 6357265 | Theftproof lock structure | — | 2002-03-19 |
| 6022120 | Lighting device for a stun gun | — | 2000-02-08 |