Granted Patent
Utility
US 5,324,593 · App. 07/837,855
Thin film medium with layered film gradient
Inventors:
Brij B. Lal, Atef H. Eltoukhy
Patented Case
View Patent ↗
Granted: Jun 28, 1994
Filed: Feb 18, 1992
Inventors
Brij B. Lal
Atef H. Eltoukhy
Assignee (at issue)
HMT Technology 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.