YI

Yuho Ishikawa

SO Sony: 2 patents #12,963 of 25,231Top 55%
Overall (All Time): #2,145,675 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7361428 Battery device Kouji Watanabe, Hidetoshi Akasawa 2008-04-22
4303815 Push button switch assembly — 1981-12-01