Why Hamamatsu?

Why Hamamatsu is world leader of PMT not specific to GEO but general PMTs? Hamamatsu is aiming ultimate performance in research field by implementing the severe requirement from the customers (We develop, modify, customize by hearing the customer’s demands.)


Hamamatsu is also offering quality PMT products to variety of application fields such as medical, biomedical, industrial and other academic research. Our products are contributing to high performance and good reliability of the final products that our customers are producing or using. 

One of the achievement was Nobel price.



Professor Takaaki Kajita of the Institute for Cosmic Ray Research, University of Tokyo, was awarded the Nobel Prize in Physics for “discovery of neutrino oscillations that prove a neutrino has mass.” In 1998, at the Super-Kamiokande Neutrino Observatory located in Kamioka-cho, Hida City, Gifu Prefecture, he succeeded for the first time in the world in discovering the phenomenon of neutrino oscillations, which proves that neutrino have mass.



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