Born in Kanagawa Prefecture and attended Kanagawa Instructor's School (now Yokohama National University) and Hosei University Department of Philosophy. While at Hosei University, after learning from Tetsuzo TANIKAWA, KIMURA decided to become an art critic, but changed paths to being an painter. As his relationship with Teijiro KUBO deepened and as he made aqcuaintaince with artists like Q Ei, Ay-O, and Masuo IKEDA, he participated in the sozo biiku movement led by KUBO.