Granted Patent
Utility
US 6,154,382 · App. 09/404,378
High-voltage power supply circuit having a plurality of diode bridges connected in series to the secondary winding of a transformer
Inventors:
Takeshi Kawahara, Kurao Nakagawa
Patented Case
View Patent ↗
Granted: Nov 28, 2000
Filed: Sep 24, 1999
Inventors
Takeshi Kawahara
Kurao Nakagawa
Assignee (at issue)
NEC CORPORATION
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.