Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9696364 | Apparatus and method for detecting fault in digitizer | Hyun Rok Cha, Bong Kee Park, Jin You | 2017-07-04 |
| 9512549 | Washing machine using ultrasonic vibrations | Hyun Rok Cha, Chang Seog Kang, Hyoung Uk Nam, Chang Youn Kang | 2016-12-06 |
| 9400161 | OCT probe using PZT | Hyun Rok Cha, Jae Young Ahn, Hyoung Uk Nam, Tae-Won Jeong | 2016-07-26 |
| 9156072 | Ultrasonic extrusion apparatus for metal material | Hyun Rok Cha | 2015-10-13 |
| 8276877 | Solenoid valve controlled by wireless communication | Hyun Rok Cha, Sung Ho Lee, Ik Hyun Oh, Chang Seog Kang | 2012-10-02 |