Granted Patent
Utility
US 6,236,200 · App. 09/080,957
Magnetic metal sensor and method for detecting magnetic metal
Inventors:
Yasuo Nekado, Masaaki Kusumi
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: May 19, 1998
Inventors
Yasuo Nekado
Masaaki Kusumi
Assignee (at issue)
Sony Precision Technology Inc.
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.