Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7764121 | Differential amplifier, method for amplifying signals of differential amplifier, and display driving device having differential amplifier | Chang Ho An | 2010-07-27 |
| 5099513 | Integrated circuit for generating a melody and ring | Yong Hoon Kim | 1992-03-24 |