Granted Patent
Utility
US 5,859,446 · App. 08/802,882
Diode and power converting apparatus
Inventors:
Masahiro Nagasu, Mutsuhiro Mori, Hideo Kobayashi, Junichi Sakano
Patented Case
View Patent ↗
Granted: Jan 12, 1999
Filed: Feb 19, 1997
Inventors
Masahiro Nagasu
Mutsuhiro Mori
Hideo Kobayashi
Junichi Sakano
Assignee (at issue)
HITACHI, 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.