Saitama (city) city boundaries. The western portion of the city lies on the lowland created by the Arakawa River along with those created by small rivers such as the Moto-Arakawa River, Shiba River, and Ayase River. The rest of the area mostly resides on the Ōmiya Plateau lying in the north-south direction. Dispersed in this region, major rivers flow southward, almost paralleling to one another. Saitama has ten wards ("ku"), which were assigned official colours as of April 2005: Saitama's economy is principally constituted by commercial business. The city is one of many commercial centers of the Greater Tokyo area and serves
Minoru Arakawa and office buildings. At a Christmas party in Kyoto, Arakawa met Yoko Yamauchi, daughter of Nintendo president Hiroshi Yamauchi. They married in November 1973. Arakawa, along with his wife and three-year-old daughter Maki, moved to Vancouver, Canada in 1977 for work. A second daughter, Masayo was born in 1978. Hiroshi Yamauchi offered Arakawa to establish Nintendo of America; while Yoko opposed the position, having seen the impact of the company on her father's life, Arakawa accepted the offer. Arakawa and his wife established an office in Manhattan in 1980, and Arakawa became the company's first president. After a disastrous experience