Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12207051 | Vibration module for piezoelectric speaker and panel speaker | — | 2025-01-21 |
| 9467074 | Piezoelectric generator for supplying power to portable terminal | Chan Sei Yoo, Hyung Won Kang, Seung Ho HAN | 2016-10-11 |
| 8680750 | Piezoelectric power generator for feeding emergency power | Hyung Won Kang, Woo Sung Lee, Seung Ho HAN, Chan Sei Yoo, Hwi-yeol Park | 2014-03-25 |
| 5234857 | Method of making semiconductor device having a capacitor of large capacitance | Sung Tae Kim, Jae-hong Ko | 1993-08-10 |
| 5227651 | Semiconductor device having a capacitor with an electrode grown through pinholes | Sung Tae Kim, Jae-hong Ko | 1993-07-13 |