Granted Patent
Utility
US 6,790,541 · App. 09/834,105
Exchange coupling film and electroresistive sensor using the same
Inventors:
Masamichi Saito, Naoya Hasegawa, Yosuke Ide, Kenichi Tanaka
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Apr 11, 2001
Inventors
Masamichi Saito
Naoya Hasegawa
Yosuke Ide
Kenichi Tanaka
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.