Toshihiro Fujii received both his B.Sc. and his Ph.D. in inorganic chemistry from Kyoto University, Japan. In 1974, he joined the National Institute for Environmental Studies (Japan). From 2005, he worked at Meisei University as Full Professor and he was in charge of Inorganic/Analytical Chemistry. Professorship (Invite); Ecole Normale Superiere (France, 1996/1997), Ecole Polytechnique (France, 2009/2010), University of Warwick (UK, 2004/2007), and Tokyo Metropolitan University (2003/2005). His research fields are new methods for free radicals (Li+ ion attachment mass spectrometry), surface ionization organic mass spectrometry and ab initio & DFT Molecular Orbital methods (Gaussian) for Li+ ion attachment reaction and environmental toxicology studies.