In March 1991 he completed the 100 man kumite supervised by Mas Oyama.

[3] When he was 16 years old he joined Kyokushin Kaikan Ishikawa Dojo.

He remained a top athlete in Kyokushin All Japan Tournaments, going on to beat Michel Wedel, Gerard Gordeau and Michael Thompson.

[6] In 1990 he won a gold medal in the 22nd All Japan Kyokushin Tournament.

[8] He is the shihan of Kyokushin Kaikan Masuda Dojo.