Norimasa Hirai, the acclaimed head coach of Japan's swimming team, is widely credited for grooming Kosuke Kitajima and Kosuke Hagino into Olympic champions.Three years away from the Tokyo Olympics, Hirai just may have another gold medalist in the works in 21-year-old Yui Ohashi, who set the national championships alight Friday after shattering the Japan record in the women's 400-meter individual medley.Ohashi's time of 4 minutes, 31.42 seconds was 3.24 seconds faster than the old mark held by Sakiko Shimizu, who was runner-up -- more than six full seconds behind. Shimizu was last in the 400…READ FULL ARTICLE