Granted Patent
Utility
US 5,953,191 · App. 09/016,636
Protection circuit against electrostatic charge applied between power supply terminals for preventing internal circuit therefrom regardless of polarity thereof
Inventor:
Kaoru Narita
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Jan 30, 1998
Inventor
Kaoru Narita
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.