Granted Patent
Utility
US 6,428,884 · App. 09/602,353
Magnetic recording medium
Inventors:
Koji Naoe, Kiyomi Ejiri
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Jun 23, 2000
Inventors
Koji Naoe
Kiyomi Ejiri
Assignee (at issue)
Fujitsu Limited
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.