Granted Patent
Utility
US 6,288,423 · App. 09/059,590
Composite gate structure memory cell having increased capacitance
Inventor:
Fumitaka Sugaya
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Apr 14, 1998
Inventor
Fumitaka Sugaya
Assignee (at issue)
NIPPON STEEL 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.