Granted Patent
Utility
US 6,551,728 · App. 09/539,944
Magnetic recording medium and magnetic storage apparatus
Inventors:
B. Ramamurthy Acharya, Iwao Okamoto
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: Mar 31, 2000
Inventors
B. Ramamurthy Acharya
Iwao Okamoto
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.