Granted Patent
Utility
US 6,067,271 · App. 09/186,683
Semiconductor memory device and a driving method of the same
Inventor:
Satoshi Isa
Patented Case
View Patent ↗
Granted: May 23, 2000
Filed: Nov 5, 1998
Inventor
Satoshi Isa
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.