Granted Patent
Utility
US 6,721,122 · App. 09/735,055
Disk drive unit and control method for same
Inventors:
Koichi Aikawa, Tatsuro Sasamoto, Susumu Yoshida, Akihide Jinzenji
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Dec 11, 2000
Inventors
Koichi Aikawa
Tatsuro Sasamoto
Susumu Yoshida
Akihide Jinzenji
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.