About OKAWA MASASHI
About 紙パルプの技術
About imogolite
About clay mineral
About carbon nanotube
About chemical synthesis
About porous medium
About acidity (degree)
About catalyst
About analogical material
About acid catalyst
About surface acidity
About analogue
About Soil minerals
About ナノチューブ
About 粘土鉱物
About イモゴライト
About 類似化合物