• Phase—Drawing 1968
• Phase 1968
• Phase—Mother Earth 1968
• Phase—Sponge 1968
• Phase of Nothingness—Oilclay 1969
• Phase of Nothingness—Water 1969
• Phase of Nothingness 1969-70
• Phase of Nothingness—Cloth and Stone 1970
• Phase of Nothingness—Cut Stone 1970
• Phase of Nothingness—Single works 1970-92
• Stone and Neon 1971
• Progetto 1971
• Phase of Nothingness—Tree 1972-76
• Phase of Nothingness—Black 1978
• Walking Stone 1979
• Okukuji ikoi no mori 1979
• Ring of Scenery 1982
• Tama Rē-en 1993
• Historical photographs 1968-