Writer name: Tatsuo Kawaguchi Title of work: "Relationship line / rectangle" "Relationship line / circle" Year of production: 1985-1997 Material: Copper, Japanese paper, acrylic, glass, stainless steel Size: 2 points / H250 each × W220 × D5cm Installation location: Nisseki Yokohama Building 3F Elevator entrance Born in 1940 in Hyogo prefecture. Lives in Chiba prefecture. It is a work that draws a line in the space with a copper wire wrapped in Japanese paper. Notice that the patina oozes out from the Japanese paper as a medium toward the inside and outside of the circles and squares. You will notice that shapes such as circles and squares are not just about the inside. The change itself in which the patina in Japanese paper exudes is also included in the concept of the work. The artist is known as a leading figure in conceptual art in Japan.