Press Release Tech Bureau Inc. Raises $835,000, Launches Major Bitcoin Exchange in Japan OSAKA, Japan, March 4, 2015 /PRNewswire/ -- Backed by $835,000 in funding from Nippon Technology Venture Partners (NTVP), Tech Bureau Inc. today added a Bitcoin exchange to its crypto currency lineup called Zaif. (http://zaif.jp/) Already the world's largest Monacoin exchange, Zaif now has the potential to be