ON Design Partners is an architecture firm founded by Osamu Nishida in 2002. Osamu Nishida was born in 1976 in Kanagawa. In 1999, he graduated from the Yokohama National University. In 2002, he also became a graduate assistant at the Tokyo Metropolitan University Graduate School. In 2005, he was a researcher and a part-time professor at Kanagawa University at the same institution.