Granted Patent
Utility
US 5,147,679 · App. 07/629,191
Method for providing uniaxial anisotropy in magnetic recording disks
Inventors:
Michael Mallary, Kazuo Ishibashi, Hiroshi Sato
Patented Case
View Patent ↗
Granted: Sep 15, 1992
Filed: Dec 26, 1990
Inventors
Michael Mallary
Kazuo Ishibashi
Hiroshi Sato
Assignee (at issue)
Digital Equipment 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.