Granted Patent
Utility
US 5,258,669 · App. 07/838,190
Current sense amplifier circuit
Inventor:
Yasuhiro Nakashima
Patented Case
View Patent ↗
Granted: Nov 2, 1993
Filed: Feb 18, 1992
Inventor
Yasuhiro Nakashima
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.