Dr Yves Lacroix is a physicist-inventor turned entrepreneur currently managing three technology related companies in Japan. The first venture, now YSystems Ltd. was started in 2001 while he was doing research on blue laser diodes and ultra-violet LEDs at the University of Tokushima. One of the first researchers to succeed in making a GaN based structure lase at the time, he still believes good metrology is the key to progress in any development. He obtained his Ph.D. in physics from Simon Fraser University in Canada where he designed and built the (probably still) only existing fully cryogenically cooled Michelson Interferometer