Granted Patent
Utility
US 6,774,673 · App. 10/270,135
Level shifter
Inventors:
Hiroyoshi Tsuboi, Yoshiaki Okuyama
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: Oct 15, 2002
Inventors
Hiroyoshi Tsuboi
Yoshiaki Okuyama
Assignee (at issue)
Fujitsu Limited
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.