Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9773965 | Piezoelectric vibrating device | In Kil PARK, Seong Cheol Park, Young Sul KIM, Byung Yul Choi, Hyun Chul Jung +1 more | 2017-09-26 |
| 9699568 | Portable piezoelectric speaker and electronic device having the same | In Kil PARK, Seong Cheol Park, Hyun Chul Jung, Young Sul KIM | 2017-07-04 |