Granted Patent
Utility
US 6,549,384 · App. 09/861,413
Spin-valve magnetoresistive thin film element
Inventors:
Masamichi Saito, Naoya Hasegawa
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: May 18, 2001
Inventors
Masamichi Saito
Naoya Hasegawa
Assignee (at issue)
ALPS ELECTRIC CO., LTD.
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.