Granted Patent
Utility
US 6,586,121 · App. 09/862,738
Spin-valve thin-film magnetic element
Inventors:
Yosuke Ide, Masamichi Saito, Kenichi Tanaka, Naoya Hasegawa
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: May 22, 2001
Inventors
Yosuke Ide
Masamichi Saito
Kenichi Tanaka
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.