YK

Yasuihiro Kawawake

Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
Overall (All Time): #3,871,858 of 4,157,543Top 95%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4999220 Method for manufacturing perpendicular magnetic recording medium Kazuyoshi Honda, Ryuji Sugita, Kiyokazu Tohma, Yoshiki Murakami 1991-03-12