Koki Kameda, the eldest of three boxing brothers and a former world champion at two weight classes, will take over as president of Kameda Promotion from his father, Shiro, the management company said on Friday.
Kameda, 23, lost the WBC flyweight crown to Pongsaklek Wonjongkam of Thailand on a decision in March.
He has moved up a weight class and is aiming to win the super flyweight title, which would be his third crown in as many divisions, including the WBA light flyweight title.
Shiro had his boxing license revoked and effectively received a lifetime ban from the sport for spewing insults at WBC fight officials after Koki's defeat against Pongsaklek. He had continued his activities as president of the management company even after he was banned from the sport.