TOKYO (Reuters) - Japan plans to build the world's fastest-known supercomputer in a bid to arm the country's manufacturers with a platform for research that could help them develop and improve driverless cars, robotics and medical diagnostics.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=qo3Y_v4Hc9s:NkyEj94cF90:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?d=yIl2AUoC8zA" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=qo3Y_v4Hc9s:NkyEj94cF90:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=qo3Y_v4Hc9s:NkyEj94cF90:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=qo3Y_v4Hc9s:NkyEj94cF90:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=qo3Y_v4Hc9s:NkyEj94cF90:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/qo3Y_v4Hc9s" height="1" width="1" alt="" />