Granted Patent
Utility
US 5,206,552 · App. 07/776,791
Sense amplifier for non-volatile semiconductor storage device
Inventor:
Shinichi Iwashita
Patented Case
View Patent ↗
Granted: Apr 27, 1993
Filed: Oct 15, 1991
Inventor
Shinichi Iwashita
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.