조동휘

Disk image pickup method and a disk drive device

김종철, 이기주, 박종진, 2009 .

Fixed structure of the camera module in the bio drive

김종철, 이기주, 박종진, 2009 .

System and method for verifying state of a body of rotation

김종철, 이기주, 박종진, 2009 .

Power supply apparatus and driving method thereof

김경섭, 박영배, 김진태, 2013 .