Granted Patent
Utility
US 6,172,848 · App. 09/058,518
Write head with self aligned pedestal shaped pole tips that are separated by a zero throat height defining layer
Inventor:
Hugo Alberto Emilio Santini
Patented Case
View Patent ↗
Granted: Jan 9, 2001
Filed: Apr 10, 1998
Inventor
Hugo Alberto Emilio Santini
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.