公开(公告)号：CH601886A5

公开(公告)日：1978-07-14

申请号：CH1069675

申请日：1975-08-15

Applicant: BASF AG

Inventor： HACK JOACHIM DIPL ING ,  UHL KARL DR

IPC: G11B15/60 ,  G11B5/58 ,  G11B5/596 ,  G11B5/55 ,  G11B21/10

公开(公告)号：CH536012A

公开(公告)日：1973-04-15

申请号：CH313972

申请日：1972-03-03

Applicant: BASF AG

Inventor： NORBERT SCHAEFFER ,  HORST FITTERER ,  UHL KARL DR ,  SCHNELL GEORG DR ,  WILHELMUS ANDRIESSEN

IPC: G11B15/60 ,  G11B20060101 ,  G11B15/00 ,  G11B15/26 ,  G11B23/04 ,  G11B23/08 ,  G11B23/087 ,  G11B23/10

公开(公告)号：DE3168102D1

公开(公告)日：1985-02-21

申请号：DE3168102

申请日：1981-03-10

Applicant: BASF AG

Inventor： KOESTER EBERHARD DR ,  DEIGNER PAUL DR ,  SCHAEFER DIETER DR ,  UHL KARL DR ,  FALK ROLAND DR

IPC: G11B5/84 ,  G11B5/845

Abstract: A device for magnetically orienting the magnetizable particles of magnetic recording media in a preferred direction, which media are obtained by applying a coating of anisotropically magnetic particles finely dispersed in a solution of an organic binder system and conventional additives to a non-magnetic base, and subsequently solidifying the coating, by the action, on the still fluid coating, of the magnetic fields produced by two E-shaped electromagnets arranged symmetrically with respect to, and in mirror-image relationship to, the plane of the said coating.

公开(公告)号：DE2705125A1

公开(公告)日：1978-08-17

申请号：DE2705125

申请日：1977-02-08

Applicant: BASF AG

Inventor： MANZKE KLAUS ,  BROTZLER ROLAND DIPL ING ,  BERG GERHARD DIPL ING ,  UHL KARL DR

IPC: G11B5/55 ,  G11B5/54

Abstract: A positioning device for a write/read magnetic head in a magnetic disc data storage device comprising a motor-driven guide disc, with a spiral-shaped guide wall arranged at right angles to the plane of the guide disc, for a guide element in the form of a ball-bearing on a magnetic-head support. Due to the greatly reduced friction it is possible to achieve highly accurate positioning within an extremely brief period of time and with an extremely low power requirement. This device may be used to position the heads in magnetic disc systems for the recording and/or reproduction of analog or digital signals.

公开(公告)号：CH630197A5

公开(公告)日：1982-05-28

申请号：CH397278

申请日：1978-04-13

Applicant: BASF AG

Inventor： MANZKE KLAUS ,  BROTZLER ROLAND ,  BERG GERHARD ,  UHL KARL DR

IPC: G11B17/032 ,  G11B17/028 ,  G11B17/035 ,  G11B17/04 ,  G11B19/20

公开(公告)号：CH498465A

公开(公告)日：1970-10-31

申请号：CH1946168

申请日：1968-12-31

Applicant: BASF AG

Inventor： SCHNELL GEORG DR ,  HARTMANN JOB-WERNER DR ,  HEINZ STRITZINGER ,  SENKPIEL WERNER DR ,  HARTMANN HANS-JOERG DR ,  ERICH ALBERT DR SOBOTTA ,  UHL KARL DR ,  WERST GERHARD DR

IPC: C08K3/22 ,  C09D5/23 ,  G11B5/702 ,  G11B5/68