Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9773965 | Piezoelectric vibrating device | In Kil PARK, Tae Hyung NOH, Seong Cheol Park, Young Sul KIM, Byung Yul Choi +1 more | 2017-09-26 |
| 9699568 | Portable piezoelectric speaker and electronic device having the same | In Kil PARK, Seong Cheol Park, Tae Hyung NOH, Young Sul KIM | 2017-07-04 |
| 9548475 | Battery cell of irregular structure and battery module employed with the same | Kyoung Won Kang, Ki Woong Kim, Sungjin Kwon | 2017-01-17 |