JM

Junji Masunaga

MC Mitsui Mining & Smelting Co.: 1 patents #444 of 838Top 55%
Overall (All Time): #3,504,895 of 4,157,543Top 85%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6530825 Method for the production of glass substrates for magnetic recording mediums Akio Fujimura, Toshio Hosaka 2003-03-11