Granted Patent
Utility
US 4,846,948 · App. 07/117,584
Method of producing magnetic films of Fe-Si-Al alloy
Inventors:
Kazuhiro Saito, Taiichi Mori
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Nov 5, 1987
Inventors
Kazuhiro Saito
Taiichi Mori
Assignee (at issue)
Nippon Mining Company Limited
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.