Granted Patent
Utility
US 5,822,151 · App. 08/677,158
Disk drive apparatus
Inventors:
David W. Albrecht, Tatsuo Nakamoto, Shingo Tsuda
Patented Case
View Patent ↗
Granted: Oct 13, 1998
Filed: Jul 9, 1996
Inventors
David W. Albrecht
Tatsuo Nakamoto
Shingo Tsuda
Assignee (at issue)
International Business Machines Corporation
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.