MM

Michimasa Matsukawa

HO Hoya: 2 patents #523 of 1,290Top 45%
Overall (All Time): #2,323,273 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4919699 Process of removing platinum inclusions from laser glass Tetsuro Izumitani, Kunio Takeuchi 1990-04-24
4820662 Silicophosphate laser glass Tetsuro Izumitani, Chiemi Hata 1989-04-11