Granted Patent
Utility
US 5,838,515 · App. 08/640,272
PWM/linear driver for disk drive voice coil actuator
Inventors:
Sassan Mortazavi, Mehran Ataee
Patented Case
View Patent ↗
Granted: Nov 17, 1998
Filed: Apr 30, 1996
Inventors
Sassan Mortazavi
Mehran Ataee
Assignee (at issue)
Quantum 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.