Born in 1967 in Fukushima prefecture, Japan. Kobyashi Hiroshi graduated from the Tokyo National University of Fine Arts & Music in 1995, and received his master's degree from Brooklyn College of the City University of New York. He has been holding solo exhibitions in Gallery Natsuka since 2000 (2000-2005, Tokyo) ; and other solo exhibitions such as "Blue/blue" (2004, Washington D.C.); "Works on paper" (2005, Tokyo); "Project" (2006, Tokyo); "and group shows in "VOCA Exhibition 2003" (2003,Tokyo); "Revolving Door: ISCP<->Asia" (2003,New York); "Japan: Rising" (2003,Tokyo); "Depredation" (destroy)(2003,Tokyo); "Shell Art Award 2004" (2004,Tokyo); "New Spirits Fukushima" (2005, Fukushima); "Blend-Group Exhibition of China, Japan, Korea and Taiwan Contemporary" (2007, Taiwan).