The methodology of quality evaluation and improvement by Dr. Genichi Taguchi was systematized as “quality engineering” in the 1970’s, and the value and effectiveness came to be recognized in a lot of technical fields as a concrete and efficientmethodology of product development and technological development. Then, “Quality Engineering Forum” was established to unify information in various fields to spread and promote quality engineering further in March, 1993. Afterwards, the name was changed into “Robust Quality Engineering Society (RQES)” in 1998. The 15th anniversary of this society was cerebrated in 2007. The society performs businesses such as publication of the journal and holding annual conference. The number of members is 2350 or more at the end of March in 2009. It is one of our society’s features that the number of enterprise members is far more than that of school officials unlike other academic societies. Moreover, we have no branches. Instead, local societies of quality engineering have been organized and spread to local companies. Currently, 23 local societies are active.