Granted Patent
Utility
US 5,627,699 · App. 08/385,008
Magnetic disk unit
Inventors:
Shunichiro Ota, Masayuki Kanamaru, Osaaki Watanuki
Patented Case
View Patent ↗
Granted: May 6, 1997
Filed: Feb 7, 1995
Inventors
Shunichiro Ota
Masayuki Kanamaru
Osaaki Watanuki
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.