The KIPRIS web site (http://eng.kipris.or.kr/enghome/main.jsp) provides free English abstract called KPA (Korean Patent Abstract)
for Korean patent applications published in or after January 2000, or for registered Korean patents from January 1979.
Also Full text Korean to English machine translation service called K2E-PAT is available for $30 per document at k2epat.com for both patent and utility model documents.
Korea references: http://kpa.kipris.or.kr/kpa/search/search_kpa.do