Company Profile EM healthy housing EM building example Clinic building development support Construction example collection The EM useful microorganisms ( Effective Microorganisms coined word is that attached from the initials of). The form of EM is a black or brown liquid, which is a microbial material in which multiple microorganisms coexist in the liquid. There are various problems such as sick house syndrome such as multiple chemical sensitivity caused by chemical substances contained in building materials, and the harmful effects of high airtightness. Through EM, I was taught that thinking about the environment is a shortcut to good health in order to eliminate such problems. Koken is actively aiming for construction that utilizes EM power. Koken will support owners who are considering land utilization and doctors who are aiming for independent opening. With the mottos of " detailed meetings, " " convincing construction, " and " careful management, " we will support you from the start to management and operation with a secure system. Please feel free to contact us. COPYRIGHT (C) 2009 KOU KEN CO., LTD. ALL RIGHTS RESERVED.