Granted Patent
Utility
US 6,487,092 · App. 09/861,897
DC/DC converter
Inventor:
Yukihiro Nishikawa
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: May 22, 2001
Inventor
Yukihiro Nishikawa
Assignee (at issue)
FUJI ELECTRIC CO., 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.