Granted Patent
Utility
US 6,383,597 · App. 09/602,581
Magnetic recording media with magnetic bit regions patterned by ion irradiation
Inventors:
Eric Fullerton, Dieter K. Weller
Patented Case
View Patent ↗
Granted: May 7, 2002
Filed: Jun 21, 2000
Inventors
Eric Fullerton
Dieter K. Weller
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.