大阪美術学校在学中の第8回具体美術展に初出品し、以降解散まで具体美術協会に所属。作品は「記号の集積」を特徴とし、〇、×、△などの形を画面や空間に繰り返し配置する独自のスタイルを展開した。第10回具体展で発表した《記号の部屋》など、空間全体を巻き込むインスタレーションで知られ、1969年には平面作品全焼のハプニングも実施。吉原治良から「一見クールに見えながら猛烈なエネルギーを内在する」と評された。現在も国内外で高く評価されている。

He first exhibited at the 8th Gutai Art Exhibition while still a student at Osaka Art School, and remained a member of the Gutai Art Association until its dissolution. His works are characterized by an "accumulation of symbols," and he developed a unique style in which shapes such as circles, crosses, and triangles are repeatedly arranged on the screen or in space. He is known for installations that involve the entire space, such as "Room of Symbols," which he exhibited at the 10th Gutai Exhibition, and in 1969, he staged a tragic incident in which one of his two-dimensional works was completely burned. Jiro Yoshihara commented that "while appearing cool at first glance, they contain a fierce energy within." He continues to receive high praise both at home and abroad.