Granted Patent
Utility
US 6,791,391 · App. 10/193,442
Level shifting circuit
Inventors:
Hidetoshi Nishimura, Masahiro Gion, Heiji Ikoma, Naoki Nojiri
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Jul 10, 2002
Inventors
Hidetoshi Nishimura
Masahiro Gion
Heiji Ikoma
Naoki Nojiri
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
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.