Japan Water Purifier Market Assessment, By Technology [Reverse Osmosis (RO), Ultraviolet (UV), Ultrafilters (UF), Hybrid, Others], By Type [Point-of-Use (Under the Counter, Wall Mounted, Faucet Mounted, Others), Point-of-Entry], By Application [Residential, Commercial and Industrial], By Distribution Channel [Direct Sales, Retail Stores, Online, Others], By Region, Opportunities, and Forecast, FY2017-FY2031F