Nishimura was born in
Sagamihara, Kanagawa, but raised in
Tokyo. In May 1999, he opened 2channel while he was studying at the
University of Central Arkansas. In June 2001, he founded Irregulars and Partners
KK with Ichirō Yamamoto, which was involved in 2channel's management, but later left. He graduated with a degree in psychology from Chuo University in 2000. In January 2007, Nishimura was an advisor to Skip-Up KK, CEO of Tokyo Plus KK, and a director of
Niwango, the company that launched
Nico Nico Douga. He left his role at Niwango in February 2013.
2channel During 2008, 2ch generated an annual revenue upwards of ¥100 million for Nishimura. and this event resulted in a series of lawsuits against the website. Around the same time, the anti-matome movement took place throughout 2channel, a controversial community development involving users protesting against which specialize in summarizing 2channel threads, which were taking away site traffic. while Nishimura claimed that he had in fact paid everything owed and that the domain transfer was an illegal
domain hijacking. In response, Nishimura created his own clone of 2channel at ,
4chan On 21 September 2015, he bought the website 4chan from
Christopher Poole. == Lawsuits ==