SI

Sadayoshi Ishida

SO Sony: 2 patents #12,963 of 25,231Top 55%
Overall (All Time): #2,333,788 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
D304334 Video tape recorder Toshio Ohya 1989-10-31
D295515 Combined video camera and video tape recorder — 1988-05-03