Granted Patent
Utility
US 5,457,420 · App. 08/218,125
Inverter circuit and level shifter circuit for providing a high voltage output
Inventor:
Hideki Asada
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: Mar 25, 1994
Inventor
Hideki Asada
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.