 In 2000, he founded the International Japan Martial Arts Karate Asai-ryu and the Japan Karate Shoto-Renmei.Apart from the ranking of 9th "dan" in Shotokan karate, he also held the ranks of 3rd "dan" in jodo, 2nd "dan" in judo, 2nd "dan" in jukendo, and 2nd "dan" in kendo.Reflecting on relations between JKA instructors who had graduated from Takushoku University, Asai said, "we all pretty much get on nowadays, contrary to our official stances and federations.