Granted Patent
Utility
US 5,969,895 · App. 08/824,423
Disk drive apparatus and head switching method in a disk drive apparatus
Inventors:
Tetsuo Ueda, Atsushi Tobari, Yoshihiro Nakagawa, Kazushige Okutsu
Patented Case
View Patent ↗
Granted: Oct 19, 1999
Filed: Mar 26, 1997
Inventors
Tetsuo Ueda
Atsushi Tobari
Yoshihiro Nakagawa
Kazushige Okutsu
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.