Takeshi Fujiwara

From J-Wiki

Takeshi Salvador Fujiwara Salazar (Japanese: 藤原 武; born 5 August 1985 in San Salvador) is a former Salvadorian athlete specializing in the 400 meters. He competed at the 2004 Olympic Games in Athens where he was 6th in the heats. After that he has competed in 6 other World Championships in Italy, Japan, Spain, Qatar, Turkey and in 2017 in the Bahamas World Relay Championships as a member in the 4 × 400 m and 4 × 100 m relay squad placing 6th in the B Final for team Japan.

His mother, a former athlete, is a Salvadorian while his father is Japanese.

On 7 March 2013, he changed affiliation to Japan.