YK

Yukimasa Koishikawa

NE Nec: 5 patents #2,830 of 14,502Top 20%
NE Nec Electronics: 3 patents #234 of 1,789Top 15%
Overall (All Time): #662,697 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
6703662 Semiconductor device and manufacturing method thereof 2004-03-09
6632715 Semiconductor device having nonvolatile memory cell and field effect transistor 2003-10-14
6613631 Method of forming a non-volatile semiconductor memory device with a tunnel barrier film defined by side walls 2003-09-02
6436767 Semiconductor memory device and process for manufacturing the same 2002-08-20
6429480 Semiconductor device having nonvolatile memory cell and field effect transistor 2002-08-06
5763927 High-voltage lateral field effect transistor having auxiliary drain electrode for a step-down drain voltage 1998-06-09
5633521 Enhancement of breakdown voltage in MOSFET semiconductor device 1997-05-27
5351162 High power MOS device with protective circuit against overcurrent or the like 1994-09-27