发明名称 |
PRODUCTION OF MAGNETIC RECORDING MEDIA |
摘要 |
PURPOSE:To make possible increasing of the density of long-length magnetic tapes in particular by partly ionizing and directing vapor current of a ferromagnetic mother material to the base material moving along the peripheral side surface of a cylindrical can in a vacuum atmosphere in which partial pressure of O2 is specified. |
申请公布号 |
JPS5421309(A) |
申请公布日期 |
1979.02.17 |
申请号 |
JP19770086371 |
申请日期 |
1977.07.18 |
申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
SHINOHARA KOUICHI |
分类号 |
C23C14/56;C23C14/32;G11B5/85;H01F41/20 |
主分类号 |
C23C14/56 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|