Granted Patent
Utility
US 6,191,902 · App. 08/925,007
Magnetic disk apparatus and magnetic disk medium
Inventors:
Yoshihiro Hashimura, Shuichi Hashimoto
Patented Case
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Granted: Feb 20, 2001
Filed: Aug 27, 1997
Inventors
Yoshihiro Hashimura
Shuichi Hashimoto
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.