Granted Patent
Utility
US 5,012,572 · App. 07/322,161
Method for producing a head core slider
Inventors:
Soichiro Matsuzawa, Fuminori Takeya
Patented Case
View Patent ↗
Granted: May 7, 1991
Filed: Mar 13, 1989
Inventors
Soichiro Matsuzawa
Fuminori Takeya
Assignees (at issue)
NGK INSULATORS, LTD.
Applied Magnetics, LLC
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.