(Reuters) - Profile of Tokyo's Olympic involvement after the Japanese capital was named on Saturday as the host city for the 2020 Summer Olympics. * Japan first competed at the Olympics in 1912. * In 1920 at the Antwerp Olympics, Japan won its first medals at the Olympics, two silvers, both in tennis. Ichiya Kumagae finished runner-up in the men's singles, then teamed up with Seiichiro Kashio to win a second silver medal in doubles. ... Click here to read full news..