[1] He was born in Fukuno, Toyama[2] and began judo at the age of 5.

[2] After graduating from Tenri University, Minatoya coached judo at the dojo wichi Anton Geesink managed in Netherlands.

[2] In 1969, Minatoya participated in the World Championships in Mexico City and won a gold medal, defending his world championship.

[3] Minatoya retired in 1972, when he was defeated by Toyokazu Nomura at the All-Japan Selected Judo Championships and missed the participation of the Olympic Games held in Munich.

This biographical article related to Japanese judo is a stub.