Granted Patent
Utility
US 5,475,554 · App. 08/187,010
Magnetic head using specified Fe Ta N Cu or Fe Ta N Ag alloy film
Inventors:
Nobuyuki Ishiwata, Chizuko Wakabayashi
Patented Case
View Patent ↗
Granted: Dec 12, 1995
Filed: Jan 27, 1994
Inventors
Nobuyuki Ishiwata
Chizuko Wakabayashi
Assignee (at issue)
NEC 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.