Granted Patent
Utility
US 6,504,690 · App. 09/767,847
Spin-tunnel magneto-resistance type magnetic sensor
Inventors:
Matahiro Komuro, Yoshiaki Kawato
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Jan 24, 2001
Inventors
Matahiro Komuro
Yoshiaki Kawato
Assignee (at issue)
HITACHI, 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.