Granted Patent
Utility
US 5,282,308 · App. 07/998,173
Thin film planarization process for fabricating magnetic heads employing a stitched pole structure
Inventors:
Mao-Min Chen, Kochan Ju, Rodney Lee, Ching Hwa Tsang
Patented Case
View Patent ↗
Granted: Feb 1, 1994
Filed: Dec 29, 1992
Inventors
Mao-Min Chen
Kochan Ju
Rodney Lee
Ching Hwa Tsang
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.