Granted Patent
Utility
US 6,566,766 · App. 10/097,832
DC-DC converter circuit, power supply selection circuit, and apparatus
Inventors:
Kouichi Matsuda, Mitsuo Saeki, Hidekiyo Ozawa
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Mar 15, 2002
Inventors
Kouichi Matsuda
Mitsuo Saeki
Hidekiyo Ozawa
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.