is a
Grand Prix motorcycle racer from
Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
.
Career statistics
By season
Races by year
References
External links
Profile on motogp.com
{{DEFAULTSORT:Oikawa, Seijin
Japanese motorcycle racers
Living people
1970 births
250cc World Championship riders