(Excerpt from the preface) This book was presented to introduce the special polymer structure that I invented to the readers. In this book, I would call the method to make that special polymer structure as "Suzu technology" for convenience. Suzu technology is the method that installs the cavities in the nano-sized porous structure of polymer, and there are activators, such as inorganic substances, nano materials, and microorganisms in the cavities being in no contact with the polymer wall. A suzu is a traditional musical Jananese instrument or toy, which is made of metal, china, etc., and has a small ball in a hollow sphere to make a sound when shaking. Because the special polymer structure mentioned above is similar to the shape of suzu , I will name the polymer structure as "Suzu structure" and call the related technology as "Suzu technology". The purpose of Suzu technology is to fix fine materials, such as nano-sized adsorbent or catalyst, nano materials, microorganisms and so forth. Such delicate materials are too small to be difficult on commercial usage, because they blow away when the wind blows. To fix them, generally, granulation method uses. But there are several problems on granulation method. Suzu technology gets a new method to fix the nano/micro materials to solve the problems on granulation method. Suzu technology can be applied to various fields, but in this book, I would wish to draw attention to the field of nano/micro materials. It would be really happy for me if you could get useful information on Suzu technology from this book.