公开(公告)号：US3734772A

公开(公告)日：1973-05-22

申请号：US3734772D

申请日：1971-01-13

Applicant: BASF AG

Inventor： SCHNELL G ,  STRITZINGER H ,  VAETH G ,  GRAU W ,  HAMMON F ,  HOPP M

IPC: G11B5/73 ,  G11B5/70 ,  G11B5/735 ,  G11B5/74 ,  H01F10/00

CPC classification number: G11B5/70 ,  G11B5/74 ,  Y10S428/90 ,  Y10T428/24413

Abstract: MAGNETIC RECORDING MEDIA IN TAPE FORM HAVING ON THE BACK OF THE SUBSTRATE A PATTERN OF RAISED DOTS WITH A HIGH COEFFICIENT OF FRICTION WHICH IMPROVE THE WINDING PROPERTIES.