AT

Akitoshi Tezuka

Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
Overall (All Time): #2,252,041 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5940853 Recording and reproducing apparatus enabling modification of data recorded on a non-erasable recording medium Yuji Ooi 1999-08-17
5239208 Constant current circuit employing transistors having specific gate dimensions — 1993-08-24