Granted Patent
Utility
US 5,164,869 · App. 07/661,797
Magnetic recording head with integrated magnetoresistive element and open yoke
Inventors:
Robert E. Fontana, Jr., Lubomyr T. Romankiw, Mason Williams
Patented Case
View Patent ↗
Granted: Nov 17, 1992
Filed: Feb 27, 1991
Inventors
Robert E. Fontana, Jr.
Lubomyr T. Romankiw
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.