Tokyo, July 31 (BridgeNews) - Japanese shares ended the morning session higher, as investors' hopes for the implementation of structural reforms grew after Prime Minister Junichiro Koizumi said he would draw up a concrete timetable for the process in August. Major gainers included high technology shares following recent steep losses. The Nikkei 225 Stock Average rose 198.96 points, or 1.7%, to 11,778.23.