Granted Patent
Utility
US 6,603,616 · App. 09/742,505
Control method and apparatus of magnetic disc device, recording medium, and inspection method and apparatus of magnetic disc device
Inventor:
Tetsuro Takaoka
Patented Case
View Patent ↗
Granted: Aug 5, 2003
Filed: Dec 21, 2000
Inventor
Tetsuro Takaoka
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, 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.