Granted Patent
Utility
US 6,429,480 · App. 09/605,738
Semiconductor device having nonvolatile memory cell and field effect transistor
Inventor:
Yukimasa Koishikawa
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Jun 29, 2000
Inventor
Yukimasa Koishikawa
Assignee (at issue)
NEC CORPORATION
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.