Tomoo Katsumata

Patent Attorney

Practice Area
Technical Field

Chemistry, Biotechnology, Pharmaceuticals / Mechanical Engineering

Mr. Katsumata specializes in chemistry, metallurgy, and mechanical engineering. He has a wide range of experience in patent prosecution, particularly, related to ferrous/non-ferrous materials, metal processing, inorganic materials, rechargeable/fuel-cell batteries, semiconductors, analytic methods, and environmental protection technology for water/waste disposal. Mr. Katsumata conducted research and development of electrode materials, and chemical analysis of electrode materials and environmental samples.


Prosecution, opinions, oppositions, trials for invalidation, and suits against trial decisions


B.S., School of Science and Technology, Meiji University

Professional Background

Toshiba Battery Co., Ltd.