SK

Shoji Koyama

NE Nec: 2 patents #60 of 1,007Top 6%
Overall (1994): #19,992 of 165,921Top 15%
2
Patents 1994

Issued Patents 1994

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5321286 Non-volatile semiconductor memory device having thin film memory transistors stacked over associated selecting transistors Tatsuro Inoue 1994-06-14
5291440 Non-volatile programmable read only memory device having a plurality of memory cells each implemented by a memory transistor and a switching transistor stacked thereon 1994-03-01