YS

Yuji Sekikawa

SO Sony: 1 patents #17,262 of 25,231Top 70%
Overall (All Time): #3,617,355 of 4,157,543Top 90%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6072701 Current resonance type switching power source Nobuo Sato, Noritoshi Imamura 2000-06-06