Granted Patent
Utility
US 6,566,931 · App. 09/912,034
Semiconductor integrated circuit device with level shift circuit
Inventor:
Fujio Higuchi
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Jul 24, 2001
Inventor
Fujio Higuchi
Assignee (at issue)
NEC Electronics 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.