| 6231963 |
Magnetic recording media |
August Lehner, Helmut Jakusch, Volker Koch, Albert Kohl, Werner Lenz +7 more |
2001-05-15 |
| 5569409 |
Finely divided acicular magnetic modified chromium dioxide |
Harald Jachow, Reinhard K orner, Ronald J. Veitch, Ekkehard Schwab, Helmut Jakusch +2 more |
1996-10-29 |
| 5496633 |
Transfer film with magnetic layer |
Manfred Steuerwald, Jenoe Kovacs, Dieter Schwarz |
1996-03-05 |
| 5378383 |
Process for preparing modified chromium dioxide |
Harald Jachow, Ekkehard Schwab, Reinhard Koerner, Norbert Mueller, Rudi Lehnert +4 more |
1995-01-03 |
| 5264292 |
Transfer film having magnetic layers |
Jenoe Kovacs, Manfred Steuerwald |
1993-11-23 |
| 5209970 |
Magnetic recording media |
Jenoe Kovacs |
1993-05-11 |
| 5164173 |
Preparation of stabilized acicular ferromagnetic chromium dioxide |
Norbert Muller, Rainer Feser, Bernhard Bottcher, Peter Rudolf, Werner Hubner |
1992-11-17 |
| 5096779 |
Chromium dioxide material, its preparation and magnetic recording media containing this chromium dioxide material |
Michael Mueller, Ekkehard Schwab, Helmut Auweter, Rainer Feser, Werner Huebner +2 more |
1992-03-17 |
| 5030371 |
Process for preparing acicular ferromagnetic material consisting essentially of iron-containing chromium dioxide |
Michael Mueller, Ekkehard Schwab, Helmut Auweter, Rainer Feser, Rudi Lehnert +1 more |
1991-07-09 |
| 4741895 |
Preparation of chromium(III) oxide |
Norbert Mueller, Bernhard Boettcher, Helmut Reinicke, Gerhard Honecker |
1988-05-03 |
| 4670177 |
Preparation of ferromagnetic chromium dioxide |
Norbert Mueller, Peter Rudolf, Eugen Wettstein |
1987-06-02 |
| 4619777 |
Preparation of a magnetic dispersion |
Milena Melzer, Helmut Jakusch, Werner Grau, Eberhard Koster, Werner Loser +3 more |
1986-10-28 |
| 4521527 |
Molded iron catalyst and its preparation |
Gerhard Frank, Peter Rudolf, Gerald Neubauer, Hans J. Wilfinger, Emil Pfannebecker +1 more |
1985-06-04 |
| 4497723 |
Preparation of acicular, ferrimagnetic iron oxides |
Guenter Vaeth, Peter Rudolf, Wilhelm Sarnecki, Helmut Jakusch, Eberhard Koester +1 more |
1985-02-05 |
| 4492804 |
Preparation of primary amines |
Gerhard Frank, Peter Rudolf, Gerald Neubauer, Paul Duffner, Hans J. Wilfinger +1 more |
1985-01-08 |
| 4457982 |
Acicular ferrimagnetic iron oxide and its preparation |
Peter Rudolf, Jenoe Kovacs, Guenter Vaeth |
1984-07-03 |
| 4378240 |
Preparation of acicular ferromagnetic metal particles consisting essentially of iron |
Hansjoerg Siegle, Hans H. Reich, Horst Autzen, Werner Steck, Werner Loeser +1 more |
1983-03-29 |
| 4367214 |
Manufacture of acicular ferrimagnetic iron oxide |
Wilhelm Sarnecki, Laszlo Marosi, Horst Autzen, Werner Steck |
1983-01-04 |
| 4362708 |
Preparation of acicular gamma-iron(III) oxide of high coercive force |
Hans Reichert, Guenter Vaeth, Friedrich R. Faulhaber, Horst Autzen, Peter Rudolf +1 more |
1982-12-07 |
| 4344791 |
Manufacture of acicular ferromagnetic iron particles |
Werner Steck, Wilhelm Sarnecki, Laszlo Marosi, Werner Loeser |
1982-08-17 |
| 4340494 |
Process for the manufacture of ferromagnetic chromium dioxide |
Guenter Vaeth, Norbert Mueller, Eugen Wettstein |
1982-07-20 |
| 4295879 |
Manufacture of acicular ferromagnetic iron particles |
Werner Steck, Wilhelm Sarnecki, Laszlo Marosi, Horst Autzen |
1981-10-20 |
| 4287233 |
Manufacture of acicular cobalt-containing magnetic iron oxide |
Peter Rudolf, Werner Steck, Eberhard Koester, Christof Jaeckh |
1981-09-01 |
| 4275114 |
Magnetic recording medium and method of stabilization of chromium dioxide magnetic pigments |
Eduard Schoenafinger, Herbert Motz, Paul Deigner, Werner Grau |
1981-06-23 |
| 4271234 |
Iron oxide magnetic pigments for the production of magnetic coatings |
Eduard Schonafinger, Paul Deigner, Helmut Jakusch, Jurgen Amort, Heinz Nestler +2 more |
1981-06-02 |
