Granted Patent
Utility
US 5,659,503 · App. 08/670,998
Nonvolatile semiconductor memory having an improved reference voltage generating circuit
Inventors:
Naoaki Sudo, Toshio Takeshima
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Jun 28, 1996
Inventors
Naoaki Sudo
Toshio Takeshima
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.