is a Japanese professional shogi player ranked 7-dan.
Toyokawa was born in Suginami, Tokyo on February 20, 1967. In December 1982, he entered the Japan Shogi Association's apprentice school at the rank 6-kyà « under the guidance of shogi professional . He was promoted to the rank of 1-dan in 1985, and obtained full professional status and the rank of 4-dan in October 1991.
Toyokawa's promotion history is as follows: