1978, born in Fukuoka, Japan. 2003, graduated from the University of Tokyo. 2004, worked in SAKO Architects. 2007, a chief architect of SAKO Architects. 2009, established Tsutsumi & Associates in Beijing.
2010 JCD Design Award Gold Prize
2010 Contemporary Chinese Architecture at Vitra Design Museum Chinese
2012 Chinese Modern Architecture at Manheim in Germany