Education
Kinki University.
六車 卓也
Kinki University.
He is an alumnus of the Kinki University. Muguruma became interested in boxing at the age of a junior high school student. In high school, he belonged to the rugby club
As Muguruma was a slow runner, he was a substitute player there.
He began boxing at Osaka Teiken Boxing Gym after entering the University. Muguruma turned professional with an amateur record of 2–1 (1 KO), and made his debut with a second round knockout victory in April 9, 1981.
Muguruma dropped down one more weight class for the scheduled fight against Bernardo Piñango for the WBA bantamweight title. In his first defense against Chan-Yong Park in Moriguchi on May 24 of that year, Muguruma was knocked down from an accidental head butt in the third round.
Although Muguruma was given a two-minute rest, he could not recover from the damage until he was stopped in the eleventh round.
In September of the same year, Muguruma was tied on points with Wilfredo Vázquez in the fight for the WBA bantamweight title at the Osaka Prefectural Gymnasium. Muguruma moved back a weight class to fight against Juan José Estrada for the WBA super bantamweight title in Moriguchi in October 1988. However he suffered an eleventh round stoppage with the towel thrown in, after being floored in the fourth and eleventh rounds, and hung up his gloves.
Subsequently he joined Mizuno Corporation.
From 2008, he was responsible for the production of the focus mitt.
He went down a weight division to capture the Japanese super bantamweight title in November 1983, and defended that title seven times in total before returning lieutenant