Arakawa River (Kantō) Arakawa River (Kantō) The is a long river that flows through Saitama Prefecture and Tokyo. It originates on Mount Kobushi in Saitama Prefecture, and empties into Tokyo Bay. It has a total catchment area of . The river is one of Tokyo's major sources of tap water, and together with the Tone River, accounts for around 80% of Tokyo's water supply. Attempts to control flooding of the Arakawa River have been made since the area that is now Tokyo became the de facto capital of Japan during the Edo period. Following a major flood in 1910 that damaged a large
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