"Takaya Ogawa,Hiroshi Ushiyama,* Ju-Myeung Lee,Takeo Yamaguchi,Koichi Yamashita","Theoretical Studies on Proton Transfer among a High Density of Acid Groups: Surface of Zirconium Phosphate with Adsorbed Water Molecules",,"J. Phys. Chem. C.",,"vol. 115","No. 13","pp. 5599-5606",2011, "Ju Myeung Lee,Yuma Kikuchi,Hidenori Ohashi,Takanori Tamaki,Takeo Yamaguchi","Novel mild conversion routes of surface-modified nano zirconium oxide precursor to layered proton conductors",,"Journal of Materials Chemistry",,"vol. 20"," 30"," 6239-6244",2010,Aug. "Takaya Ogawa,Hiroshi Ushiyama,Koichi Yamashita,Ju-Myeung Lee,Takeo Yamaguchi","Theoretical Studies of the Mechanism of Proton Transfer at the Surface of Zirconium Phosphate",,"Chemistry Letters",,"vol. 39","no. 7","pp. 736-737",2010, "Ju Myeung Lee,Hidenori Ohashi,Taichi Ito,Takeo Yamaguchi","Morphological Investigations of Surface Modified Zirconia Precursor by Perfluorosulfonated Ionomer Using Nano Capping Technique",,"J.Chem. Eng. Japan",,"vol. 42","no. 12","pp. 918-929",2009, "Ju Myeung Lee,Taichi Ito,Takeo Yamaguchi","Development and modification of a PEMFC electrode by using a hydrocarbon ionomer for high utilization of catalyst",,"J. Chem. Eng. Japan",,"vol. 40",,"pp. 773-779",2007,