Granted Patent
Utility
US 5,805,396 · App. 08/716,872
Protection circuit of drive system for motor
Inventors:
Hitoshi Sado, Hiroyo Saitoh
Patented Case
View Patent ↗
Granted: Sep 8, 1998
Filed: Sep 20, 1996
Inventors
Hitoshi Sado
Hiroyo Saitoh
Assignee (at issue)
Zexel GmbH
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.