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Yasushi Nagayama

VJ Victor Company Of Japan: 1 patents #818 of 1,489Top 55%
📍 Hitachinaka, JP: #1,699 of 2,447 inventorsTop 70%
Overall (All Time): #3,720,107 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5648150 Magnetic recording medium having a backcoat layer containing carbon black and platelet inorganic powder Osamu Kobayashi, Ikuo Matsumoto 1997-07-15