Granted Patent
Utility
US 6,438,020 · App. 09/651,104
Ferroelectric memory device having an internal supply voltage, which is lower than the external supply voltage, supplied to the memory cells
Inventor:
Junichi Yamada
Patented Case
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Granted: Aug 20, 2002
Filed: Aug 30, 2000
Inventor
Junichi Yamada
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.