Granted Patent
Utility
US 6,731,099 · App. 10/083,592
DC-DC converter with control circuit capable of generating step-up and step-down signals
Inventors:
Koichi Inatomi, Ryuta Nagai
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Feb 27, 2002
Inventors
Koichi Inatomi
Ryuta Nagai
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.