KK

Kouichi Kawasumi

SO Sony: 1 patents #17,262 of 25,231Top 70%
Overall (All Time): #4,069,989 of 4,157,543Top 100%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4330600 Magnetic recording medium Haruo Watanabe, Junetsu Seto 1982-05-18