Japan's table tennis world championships medalists Hina Hayata and Tomokazu Harimoto on Wednesday vowed to improve their play ahead of the Paris Olympics to overcome China's domination of the sport.Hayata secured her first women's singles podium finish Saturday in South Africa, where the 22-year-old claimed the bronze medal after losing 4-1 in the semifinals to world No. 1 and eventual champion Sun Yingsha of China."There's a sense of happiness, but it was a tournament where the reality hit me that there are still players above me," Hayata told a press conference. "I still have lots of thin…READ FULL ARTICLE