Granted Patent
Utility
US 5,936,403 · App. 08/580,450
Weak-field magnetic field sensor having etched circuit coils
Inventor:
Yasuhiro Tamura
Patented Case
View Patent ↗
Granted: Aug 10, 1999
Filed: Dec 27, 1995
Inventor
Yasuhiro Tamura
Assignee (at issue)
A-Plus Corporation
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.