Granted Patent
Utility
US 5,168,413 · App. 07/621,010
Transducer head flying height monitoring methods and apparatus for disk drive system
Inventors:
Jonathan Darrel Coker, Richard Leo Galbraith, Paul P. Howard, Gregory Kerwin, Gordon James Smith
Patented Case
View Patent ↗
Granted: Dec 1, 1992
Filed: Nov 30, 1990
Inventors
Jonathan Darrel Coker
Richard Leo Galbraith
Paul P. Howard
Gregory Kerwin
Gordon James Smith
Assignee (at issue)
IBM 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.