Keiichi, Bitcoin Growth Hacker learned electronic engineering at Polytechnic University. He has worked for Tokyo Metallic Communications as a network engineer. He also worked as a system administrator of a translation company from 2007. He has spoken at seminars and events in Japan to advocate Bitcoin and Digital Currencies including Monacoin, a new altcoin from Japan. He is also actively involved in the lobbying activity for Bitcoin in Japan, reaching out to politicians from early 2014.He had started to work at Japan Authority of Digital Assets(JADA) as Secretariat in September, 2014. JADA had transformed to Japan Blockchain Association(JBA) in April 2016. He had promoted from the Secretariat to the Executive Director of JBA.