Inventor
ROH DONG SIK
KR4 patents
Patents
4 patentsUS9752768B2Sep 5, 2017
LED lighting device
KMW INC5 citations65
US10132468B2Nov 20, 2018
High power LED lighting device
KMW INC0 citations39
US10119698B2Nov 6, 2018
LED illumination device for spotlighting
KMW INC0 citations37
US9990847B2Jun 5, 2018
Traffic accident occurrence notification system using LED display lamps
KMW INC0 citations37