友綱部屋
Upon his retirement he became an elder of the Japan Sumo Association under the name Takashima Oyakata, working as a coach. He recruited Kaiō in March 1988, whom he had been aware of when he was still an active wrestler. He became head of the Tomozuna stable in May 1989 upon the mandatory retirement of the previous head, former "jūryō" Ichinishiki (who was also his father-in-law). In 1993 Kaiō reached the top division, and became an "ōzeki" in 2000. In 2006 Tomozuna Oyakata became a Director on the board of the Sumo Association, initially in charge of the Education department and running the sumo school. He continued to produce top level wrestlers, with Kaisei reaching the top division in 2011. In April 2012 Tomozuna stable absorbed Ōshima stable when its stablemaster retired. Kyokutenhō then immediately won the top division championship in May 2012, giving Tomozuna stable another championship to go with the five won by Kaiō.