Granted Patent
Utility
US 5,226,966 · App. 07/797,504
Apparatus for providing uniaxial anisotropy in a magnetic recording disk
Inventors:
Michael Mallary, Kazuo Ishibashi, Hiroshi Sato
Patented Case
View Patent ↗
Granted: Jul 13, 1993
Filed: Mar 2, 1992
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.