Granted Patent
Utility
US 6,770,388 · App. 10/209,674
Perpendicular magnetic recording medium
Inventors:
Hiroyuki Uwazumi, Teruhisa Yokosawa
Patented Case
View Patent ↗
Granted: Aug 3, 2004
Filed: Jul 31, 2002
Inventors
Hiroyuki Uwazumi
Teruhisa Yokosawa
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.