发明授权
- 专利标题： Vertical magnetization type recording medium and manufacturing method therefor
- 专利标题（中）： 垂直磁化型记录介质及其制造方法
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申请号： US809828申请日： 1985-12-17
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公开(公告)号： US4717592A公开(公告)日： 1988-01-05
- 发明人: Makoto Nagao , Fusao Yamanaka , Kunihiko Sano , Akira Nahara
- 申请人： Makoto Nagao , Fusao Yamanaka , Kunihiko Sano , Akira Nahara
- 申请人地址： JPX Kanagawa
- 专利权人： Fuji Photo Film Co., Ltd.
- 当前专利权人： Fuji Photo Film Co., Ltd.
- 当前专利权人地址： JPX Kanagawa
- 优先权： JPX59-270649 19841224; JPX59-273365 19841226; JPX59-273366 19841226
- 主分类号： G11B5/66
- IPC分类号： G11B5/66 ; G11B5/85 ; B05D5/00 ; B05D5/12
摘要：
In forming a vertical magnetization type recording medium, a first soft magnetic film layer is formed on each side of a film-shaped support by vacuum deposition or sputtering at a temperature of 30.degree. C. or lower, a second soft magnetic film layer is formed on each of the first soft magnetic film layers, and a vertical magnetization film layer essentially containing Co-Cr is formed on each of the second soft magnetic film layers. The thickness of the first soft magnetic film layer on one side of the support may be made different from that of the first soft magnetic film layer on the other side so that curling of the recording medium is substantially eliminated.
公开/授权文献
- US5191151A Use of silver-exchanged ionomer membranes for gas separation 公开/授权日：1993-03-02