Granted Patent
Utility
US 6,636,397 · App. 09/814,135
Lead overlay spin valve sensor with antiferromagnetic layers in passive regions for stabilizing a free layer
Inventor:
Hardayal Singh Gill
Patented Case
View Patent ↗
Granted: Oct 21, 2003
Filed: Mar 20, 2001
Inventor
Hardayal Singh Gill
Assignee (at issue)
Hitachi Global Storage Technologies Netherlands B.V.
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.