Granted Patent
Utility
US 5,493,467 · App. 08/364,913
Yoke spin valve MR read head
Inventors:
William C. Cain, Robert E. Fontana, Jr., Hugo Alberto Emilio Santini, Mason Williams
Patented Case
View Patent ↗
Granted: Feb 20, 1996
Filed: Dec 27, 1994
Inventors
William C. Cain
Robert E. Fontana, Jr.
Hugo Alberto Emilio Santini
Mason Williams
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.