Granted Patent
Utility
US 6,071,014 · App. 09/222,857
Spindle motor with hybrid air/oil hydrodynamic bearing
Inventors:
Chen-Hsiung Lee, James F. Sullivan
Patented Case
View Patent ↗
Granted: Jun 6, 2000
Filed: Dec 30, 1998
Inventors
Chen-Hsiung Lee
James F. Sullivan
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.