MK

Masayasu Katada

SO Sony: 1 patents #17,262 of 25,231Top 70%
Overall (All Time): #4,047,262 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4368885 Spring type ball emitting apparatus Yuko Imai, Tsugio Hirabayashi 1983-01-18