About TAKEDA KOTARO
About 東北大 大学院工学研究科
About TAKEDA TAIJIRO
About Sports
About sports goods
About synthetic fiber
About nylon 66
About garment
About weight reduction
About fiber reinforced plastic
About technical history
About science and technology
About Olympics
About swimming wear
About modification
About paralympics
About history of science and technology
About Philosophy and history of chemistry
About Products,semiproducts uses in general
About Application development
About Sporting goods
About オリンピック
About 素材
About 化学
About 歴史