After graduating from Tokai University, he joined the Japan Football League club Vissel Kobe in 1995.

In 2003, his younger brother Kojiro Kaimoto also joined Grampus.

Kaimoto was selected once to play for the Japan national team.

He played a 2000 Asian Cup match against Qatar at the group stage in Beirut on October 20, 2000.

This biographical article related to a Japanese association football defender born in the 1970s is a stub.