Granted Patent
Utility
US 5,889,663 · App. 08/075,235
Circuit for balancing steady-state currents of switching devices in electric power converter
Inventors:
Masafumi Tabata, Seiki Igarashi
Patented Case
View Patent ↗
Granted: Mar 30, 1999
Filed: May 11, 1998
Inventors
Masafumi Tabata
Seiki Igarashi
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.