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Yasuyo Yamanaka

BC Bridgestone Sports Co.: 2 patents #116 of 224Top 55%
Overall (All Time): #2,145,172 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7354356 Putter head Makoto Kubota 2008-04-08
7048646 Putter head Makoto Kubota 2006-05-23