Granted Patent
Utility
US 6,429,612 · App. 09/538,211
Fast stopping method for induction motors operating from variable frequency drives
Inventors:
Tsuneo Kume, Mahesh M. Swamy
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Mar 30, 2000
Inventors
Tsuneo Kume
Mahesh M. Swamy
Assignee (at issue)
Yaskawa Electric America, Inc.
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.