Granted Patent
Utility
US 6,697,211 · App. 09/814,751
Magnetic head drive device
Inventor:
Shinji Koganezawa
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Mar 23, 2001
Inventor
Shinji Koganezawa
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.