Granted Patent
Utility
US 5,289,097 · App. 07/931,807
Spindle control method and apparatus for disk drive
Inventors:
Kevin J. Erickson, Richard Greenberg, Douglas W. Nelson
Patented Case
View Patent ↗
Granted: Feb 22, 1994
Filed: Aug 18, 1992
Inventors
Kevin J. Erickson
Richard Greenberg
Douglas W. Nelson
Assignee (at issue)
International Business Machines 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.