He is also a former Kisei title holder and a former senior managing director of the Japan Shogi Association.
[11][8]: 2 The diagram below shows Tanaka (Black) using Static Rook position with an Incomplete Bear-in-the-hole castle in an October 1976 professional match.
[17] Tanaka served on the Japan Shogi Association's board of directors on multiple occasions.
[18] He was first elected as an executive director at the association's 56th General Meeting for a two-year term on May 26, 2005,[19] and then re-elected to the same position in May 2007 and May 2011.
[20][21] He was re-elected as a director in December 2012, Tanaka was chosen to be the JSA's senior managing director to replace Kōji Tanigawa after the latter was chosen to replace Kunio Yonenaga, who died earlier in the month, as president.