Eiichi Ishikawa is a first-generation olfactory measurement operator, which is nationally recognized in Japan, making him an expert on smells. Eiichi is also a licensed odor control advisor. After working at two companies specializing in odor control, Eiichi launched his own firm as an odor detective, working with various TV shows, magazines, and major companies to test the deodorizing properties of various products as well as provides technical guidance.