Granted Patent
Utility
US 6,130,809 · App. 09/058,521
Write head before read head constructed merged magnetic head with track width and zero throat height defined by first pole tip
Inventor:
Hugo Alberto Emilio Santini
Patented Case
View Patent ↗
Granted: Oct 10, 2000
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.