Granted Patent
Utility
US 5,227,212 · App. 07/739,565
Magnetic recording disk, magnetoresistive read head, inductive write head combination
Inventors:
Richard H. Ahlert, James K. Howard, Steven E. Lambert, Ian L. Sanders
Patented Case
View Patent ↗
Granted: Jul 13, 1993
Filed: Aug 2, 1991
Inventors
Richard H. Ahlert
James K. Howard
Steven E. Lambert
Ian L. Sanders
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.