Fukuo Tanaka graduated from a glass art school and has created works with high-transparency, heat-resistant borosilicate glass. Tanaka has been in charge of the glass eyes of Yoshimasa Tsuchiya’s wood carvings, and also created other glass parts for the first time at Tsuchiya’s solo exhibition in 2024. After years of exploring glass, Tanaka uses an advanced technique called “inside-out” to produce delicate works. Pieces of glass on a test tube-shaped glass are heated with a burner, creating various patterns as they melt inside, simultaneously forming a microcosm. The unique colors are created by heating colored glass and metals such as evaporated gold and silver, and combining them by chemical reaction.