Birthplace: Tokyo, Japan Registered Architect Professor of Nihon University, College of Science and Technology A member of Japan Institute of Architects (JIA) A member of Keio University A member of Architectural Institute of Japan (AIJ)

Personal History
1970	Studied at Washington State University under first Student of Exchange Program
1972	Graduated from Nihon University, Faculty of Fine Arts
1972	Worked at Masayuki Kurokawa Architect & Associates
1976	Established Crayon & Associates
1982	Established Ken Yokogawa Architect & Associates Inc. Currently professor of Nihon University, Faculty of Arts, Lecturer of Keio University SFC, Faculty of Environmental Information
2003	Professor of Nihon University, College of Science and Technology
2004	A vice-president of Japan Institute of Architects (JIA) (-2006)

Major works
1978	Tunnel house
1987	Police Box at Hibiya Park
1989	COSMOS -urban house 1990-
1993	House on a Hill
1994	VILLA in Karuizawa
1995	K2FLAT -multiunit residential building-
1997	Garden Village-town center-
1998	Heisei-Domino
1998	White Office
1999	GLASS HOUSE therapeutic aquatic facility
2000	CESS-Center of Environmental Science in Saitama
2001	GLASS BOX, KOBE
2001	GLASS OFFICE, HIROSHIMA
2001	0123Harappa -facility for mothers and children under three years old
2002	THE TERRACE
2003	N3 UNITE -multiple residential building

Prizes
1989	Tokyo Architectural Awards
	Award for City Planning of Tokyo- Police Box at Hibiya Park
1995	1st prize, the design competition for Center of Environmental Science
1999	Japan Federation of architects & Building Engineers Association Award- Heisei Domino
1999	Prize of Architectural Institute of Japan for design - Glass House
1999	Prize for special Recognition of DuPont Benedictus 1999 - Glass House
1999	Prize of a Design Competition for 21st Century Sofas
2000	1st prize, Nijo-daime in Heisei ,the design competition for tea-ceremony room
2000	GOOD DESIGN AWARD in architectural and environmental section -CESS -Center for Environmental Science in Saitama
2001	Prize of Building Contractors Society, BCS Awards -CESS -Center for Environmental Science in Saitama
2002	Selected Architectural Design of the Architectural Institute of Japan -CESS -Center for Environmental Science in Saitama
2003	Selected Architectural Design of the Architectural Institute of Japan -0123 Harappa -facility for mothers and children under three years old
2006	Grand prix award, The 14th CS design award 2006 -HIROO COMPLEX
2006	Grand prix award, The 1st MYCOM office award 2006 -THE TERRACE