Granted Patent
Utility
US 6,108,157 · App. 09/105,901
Head mechanism control apparatus, disk drive, and head unload control method
Inventors:
Isao Yoneda, Hiroshi Uchiike, Shinji Ueno, Kenji Ogasawara
Patented Case
View Patent ↗
Granted: Aug 22, 2000
Filed: Jun 26, 1998
Inventors
Isao Yoneda
Hiroshi Uchiike
Shinji Ueno
Kenji Ogasawara
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.