发明授权
- 专利标题： Method for preparing a magnetic recording medium
- 专利标题（中）： 磁记录介质的制备方法
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申请号： US63382申请日： 1987-06-18
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公开(公告)号： US4869797A公开(公告)日： 1989-09-26
- 发明人: Makoto Nagao , Kunihiko Sano , Fusao Yamanaka , Akira Nahara
- 申请人： Makoto Nagao , Kunihiko Sano , Fusao Yamanaka , 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： JPX61-140303 19860618
- 主分类号： G11B5/66
- IPC分类号： G11B5/66 ; C23C14/06 ; C23C14/34 ; G11B5/64 ; G11B5/72 ; G11B5/73 ; G11B5/84
摘要：
A method of preparing a magnetic recording medium in which a magnetic layer is deposited on a non-magnetic support and then a carbon protective layer is sputtered onto the magnetic layer. The sputtering is performed with a bias voltage of -10V to -100V being applied in the vicinity of the support and magnetic layer.
公开/授权文献
- US5909623A Manufacturing method of semiconductor device 公开/授权日：1999-06-01