Granted Patent
Utility
US 6,441,981 · App. 09/846,056
Disk drive including a recording surface employing servo zones recorded at a channel frequency different from data zones
Inventors:
Robert L. Cloke, Richard W. Hull, Vafa James Rakshani, David Price Turner
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: May 1, 2001
Inventors
Robert L. Cloke
Richard W. Hull
Vafa James Rakshani
David Price Turner
Assignee (at issue)
WESTERN DIGITAL TECHNOLOGIES, INC.
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.