From 1991 to 1995 he, together with Atsuko Yoshifuku, ran the independent dance group, ATA Dance. In 1996, he joined the Japanese multimedia performance company Dumb Type and participated in "OR", "memorandum" and "Voyage". He has also been active in independent solo projects since 2000. His recent works, characterized by collaborations with sound/visual artists who uniquely combine and synchronize the elements of light and sound, include "Di Que No Ves (Say You Don't See)" (2003), "D.D.D. -How many more times will my heart beat before it stops?" (2004), "Tablemind"(2006) and "Good Luck"(2008). Currently, Kawaguchi is also involved in other projects including true - a new light, sound and dance performance, a collaboration with Japanese contemporary dancer/choreographer Tsuyoshi Shirai and Dumb Type's lighting designer Taklayuki Fujimoto using the new LED lighting technology. Kawaguchi is also working on his solo, site-specific performance series A Perfect Lifewhich began last year in Chicago in May 2008, and continued in Tokyo on the Sumida River, in August 2008.