Satoshi Saitoh is an analytical scientist at Chugai Pharmaceutical Co., Ltd with 16 years of experiences for CMC development of monoclonal antibody products. Specializing in characterization of protein products, Satoshi uses that experience to establish appropriate analytical methods and product qualities. Proteins are delicate molecules and susceptible to any stresses. However, proteins are workhouse molecules and play a wide variety of roles based on their structures. He believes in infinite possibilities for “Protein”.