Granted Patent
Utility
US 5,909,333 · App. 08/878,711
Servo-writing system for use in a data recording disk drive
Inventors:
John S. Best, Wen-Wei Chiang, Steven R. Hetzler, Donald E. Horne, Chih-Kung Lee, Vincent Marrello
Patented Case
View Patent ↗
Granted: Jun 1, 1999
Filed: Jun 18, 1997
Inventors
John S. Best
Wen-Wei Chiang
Steven R. Hetzler
Donald E. Horne
Chih-Kung Lee
Vincent Marrello
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.