Granted Patent
Utility
US 4,802,079 · App. 07/162,900
PWM control apparatus for interphase reactor multiplex inverter
Inventor:
Shoji Mizoguchi
Patented Case
View Patent ↗
Granted: Jan 31, 1989
Filed: Mar 2, 1988
Inventor
Shoji Mizoguchi
Assignee (at issue)
MITSUBISHI ELECTRIC 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.