Granted Patent
Utility
US 6,490,109 · App. 09/707,969
Data storage device
Inventor:
Shingo Ushirogi
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Nov 8, 2000
Inventor
Shingo Ushirogi
Assignee (at issue)
Denon, 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.