Rolf Schafer

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Gartringen-Rohrau, DE

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Patents Grantslast 30 patents

Information Patent Grant
Composite magnetic disk with Si and SiC substrate
- Patent number 4,598,017
- Issue date Jul 1, 1986
- International Business Machines Corporation
- Thomas Bayer
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus and method for selective electrochemical etching
- Patent number 4,303,482
- Issue date Dec 1, 1981
- International Business Machines Corporation
- Joachim Buhne
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR