IP Library › Granted Patent US 4,675,240
Granted Patent Utility
US 4,675,240 · App. 06/612,972

Magnetic recording disk using silicon substrate

Inventor: Joel R. Weiss
Patented Case View Patent ↗
Granted: Jun 23, 1987 Filed: May 23, 1984
Inventor
Joel R. Weiss
Assignee (at issue)
International Business Machines Corporation

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Quick Facts
Patent No.
US 4,675,240
App. No.
06/612,972
Filed
1984-05-23
Granted
1987-06-23
Kind
A