发明授权
- 专利标题： Magneto-optical recording medium and process for producing the same
- 专利标题（中）： 磁光记录介质及其制造方法
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申请号： US227673申请日： 1994-04-14
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公开(公告)号： US5637411A公开(公告)日： 1997-06-10
- 发明人: Katsusuke Shimazaki , Satoru Ohnuki , Masatoshi Hashimoto , Yoshinori Shirai , Norio Ohta , Hideo Fujiwara , Masafumi Yoshihiro , Yukinori Yamada , Eiji Koyama , Hitoshi Furusho
- 申请人： Katsusuke Shimazaki , Satoru Ohnuki , Masatoshi Hashimoto , Yoshinori Shirai , Norio Ohta , Hideo Fujiwara , Masafumi Yoshihiro , Yukinori Yamada , Eiji Koyama , Hitoshi Furusho
- 申请人地址： JPX Osaka
- 专利权人： Hitachi Maxell, Ltd.
- 当前专利权人： Hitachi Maxell, Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX3-210430 19910729
- 主分类号： G11B7/26
- IPC分类号： G11B7/26 ; G11B11/105 ; G11B5/66
摘要：
Disclosed is a magneto-optical recording medium which comprises a transparent substrate and, provided on the substrate, a magneto-optical recording film comprising a perpendicular magnetic film based on rare earth metal-transition metal and an auxiliary magnetic film having spontaneous magnetization which exerts, between itself and the magneto-optical recording film, an exchange coupling force and wherein the auxiliary magnetic film is a magnetic film which readily rotates its magnetization direction toward the external magnetic field in the neighborhood of the Curie temperature of the magneto-optical recording film and has a squareness ratio of not more than 1 in the neighborhood of the Curie temperature. Also disclosed is a process for producing the magneto-optical recording medium.
公开/授权文献
- US4993354A Apparatus for coating thin liquid film on solid surface 公开/授权日：1991-02-19
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