Volker Hahnkamm

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Krefeld, DE

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Patents Grantslast 30 patents

Information Patent Grant
Coating iron oxide particles for magnetic recording
- Patent number 4,400,432
- Issue date Aug 23, 1983
- Bayer Aktiengesellschaft
- Gunter Buxbaum
- G11 - INFORMATION STORAGE
Information Patent Grant
Coating iron oxide particles for magnetic recording
- Patent number 4,323,596
- Issue date Apr 6, 1982
- Bayer Aktiengesellschaft
- Gunter Buxbaum
- G11 - INFORMATION STORAGE
Information Patent Grant
Production of cobalt-doped ferrimagnetic iron oxides
- Patent number 4,297,395
- Issue date Oct 27, 1981
- Bayer Aktiengesellschaft
- Gunter Buxbaum
- G11 - INFORMATION STORAGE