Granted Patent
Utility
US 5,891,514 · App. 08/971,471
Method for manufacturing magnetic recording medium
Inventors:
Toyoji Ataka, Keiji Ohkubo
Patented Case
View Patent ↗
Granted: Apr 6, 1999
Filed: Nov 17, 1997
Inventors
Toyoji Ataka
Keiji Ohkubo
Assignee (at issue)
FUJI ELECTRIC CO., LTD.
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.