SI

Sumie Ishikawa

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
📍 Tachikawa, JP: #332 of 482 inventorsTop 70%
Overall (All Time): #3,898,162 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D306578 Optical disk drive unit for electronic computer Kenji Yokoi, Mamoru Sumita 1990-03-13