He played in Nippon Professional Baseball (Chunichi Dragons, Yomiuri Giants) and the KBO League.

He threw a four-seam fastball, a slider, and a fork ball.

After 13 years in NPB, Kadokura made his debut in the Korea Baseball Organization with the SK Wyverns in 2009.

As of 2019, Kadokura will be serving as a pitching coach for the Chunichi Dragons' second team.

This biographical article relating to a Japanese baseball pitcher is a stub.