发明授权
- 专利标题: Method of manufacturing a magnetic recording medium
- 专利标题(中): 制造磁记录介质的方法
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申请号: US12821104申请日: 2010-06-22
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公开(公告)号: US09070400B2公开(公告)日: 2015-06-30
- 发明人: Yuichi Hashizume , Kunio Hibino
- 申请人: Yuichi Hashizume , Kunio Hibino
- 申请人地址: JP Kawasaki-shi
- 专利权人: FUJI ELECTRIC CO., LTD.
- 当前专利权人: FUJI ELECTRIC CO., LTD.
- 当前专利权人地址: JP Kawasaki-shi
- 代理机构: Rabin & Berdo, P.C.
- 优先权: JP2009-148760 20090623
- 主分类号: G11B5/855
- IPC分类号: G11B5/855
摘要:
A method of manufacturing a magnetic recording medium includes providing a substrate that is a magnetic recording medium substrate having a disc shape, having two main surfaces, and having defined therein a center hole; holding the center hole of the substrate from both main surfaces with two holding members that each have a disc shape to hold the substrate and to cover at least the periphery of the center hole adjacent to the two main surfaces of the substrate; and applying resist liquid simultaneously to both main surfaces of the substrate using spin coating to form a resist layer simultaneously on both main surfaces while maintaining the periphery of the center hole immediately adjacent to the two main surfaces of the substrate resist-free as an unapplied portion. The method enables efficient formation of uniform resist layers without defects on both faces of the substrate.
公开/授权文献
- US20100330270A1 METHOD OF MANUFACTURING A MAGNETIC RECORDING MEDIUM 公开/授权日:2010-12-30
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