She was president of the LPGA of of Korea Tour from 2011 to 2012. Ku died of a heart attack on 10 July 2013 at her residence on a golf course in Shizuoka, Japan, and was 56 years old. LPGA of Japan Tour (23) 1985 (3) Kibun Ladies Classic, Tohato Ladies, Tohoku Queens LPGA Tour (1).
1985 (3) Kibun Ladies Classic, Tohato Ladies, Tohoku Queens 1987 (1) Tokai Classic 1990 (1) Ben Hogan & Itsuki Classic 1991 (2) SAZALE Queens, JLPGA Meiji Dairies Cup 1992 (1) Japan LPGA Championship 1993 (1) Karasumajo & Itsuki Classic 1996 (2) Toyo Suisan Ladies Hokkaido, Daio Paper Elleair Women"s Open 1997 (2) Dunlop Twin Lakes Ladies Open, Daio Paper Elleair Women"s Open 1998 (1) Chukyo television Bridgestone Ladies Open 1999 (2) Nasuogawa Ladies, Miyagi television Cup Dunlop Women"s Open 2000 (3) Miyagi television Cup Dunlop Women"s Open, Itoen Ladies, Daio Paper Elleair Ladies Open 2002 (2) Fujisankei Ladies Classic, Japan LPGA Championship Konica Cup 2003 (1) Vernal Ladies 2005 (1) APiTa Circle K Sunkus Ladies Tournament in bold denotes major championships in LPGA of Japan Tour.
