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Nakaharu Seki

SO Sony: 1 patents #17,262 of 25,231Top 70%
📍 Tagajo, JP: #24 of 34 inventorsTop 75%
Overall (All Time): #4,056,899 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4401725 Magnetic recording medium Kazunori Ozawa, Takahiro Kawana, Naoya Komada 1983-08-30