The side attack from Ichikawa on the right and Alessandro Santos on the left was Shimizu's main weapon during the period.

Toward end of his career, he played for Ventforet Kofu (2011), Mito HollyHock (2012), Fujieda MYFC (2013–14), FC Imabari (2015) and Vanraure Hachinohe (2016).

Ichikawa was short-listed for the 1998 FIFA World Cup, but national coach Takeshi Okada dropped him together with Kazuyoshi Miura and Tsuyoshi Kitazawa at the final training camp in Nyon, Switzerland.

Against Tunisia in the group stage, his cross was met by Hidetoshi Nakata who headed home to score Japan's second goal.

This biographical article related to a Japanese association football defender born in the 1980s is a stub.