Granted Patent
Utility
US 6,768,368 · App. 10/392,514
Level shifter circuit and semiconductor device including the same
Inventors:
Tomohiro Kaneko, Kazuo Tozawa
Patented Case
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Granted: Jul 27, 2004
Filed: Mar 20, 2003
Inventors
Tomohiro Kaneko
Kazuo Tozawa
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.