Research Professor, Department of Chemical and Biomolecular Engineering, Tandon School of Engineering, New York University, New York 1957 Ph.D. Purdue University, Indiana, USA. Department of Chemistry. 1957 -1960 Research Associate, Department of Chemistry and the Laboratory for Nuclear Science, Massachusets Institute of Technology, Massatusets. Since 1960 Full Professor through Assistant and Associate Professors, Department of Chemical Engineering, New York University, New York. Present Research Professor, Department of Chemical and Biomolecular Engineering, Tandon School of Engineering, New York University, New York e-mail yokamoto@nj.rr.com Research Over 230 publications; several U.S. Patents. Currently, investigations on optical properties and membrane material of perfluoro polymers.