Granted Patent
Utility
US 6,794,028 · App. 10/227,621
Perpendicular magnetic recording medium and a method of manufacturing the same
Inventors:
Hiroyuki Uwazumi, Yasushi Sakai, Tadaaki Oikawa, Miyabi Nakamura
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Aug 23, 2002
Inventors
Hiroyuki Uwazumi
Yasushi Sakai
Tadaaki Oikawa
Miyabi Nakamura
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.