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    • 2. 发明申请
    • Magnetic Recording Medium and Manufacturing Method Therefor
    • 磁记录介质及其制造方法
    • US20080305365A1
    • 2008-12-11
    • US11597887
    • 2005-05-27
    • Yoshikazu YamazakiDaisuke Yano
    • Yoshikazu YamazakiDaisuke Yano
    • G11B5/66
    • G11B5/72G06K19/06196G11B5/73G11B5/855
    • A card-like magnetic recording medium comprising a non-magnetic substrate and a laminate containing a magnetic recording layer wherein the laminate is placed in at least a portion of the non-magnetic substrate; wherein the laminate comprises a light reflection quantity controlling layer, which includes a binder resin and at least one of a scale-like metal powder and fine flakes obtained from a metallic thin film and is formed on the magnetic recording layer, and further comprises a glistening coating layer which includes glistening particles and is formed on the light reflection quantity controlling layer; and the maximum reflectance of diffuse reflection light with respect to incident lights having a wavelength from 400 to 700 nm is 20 to 70% on a portion where the glistening coating layer is provided.
    • 一种卡片状磁记录介质,包括非磁性基板和含有磁记录层的层压体,其中所述层压体放置在所述非磁性基板的至少一部分中; 其中,所述层叠体包括光反射量控制层,所述光反射量控制层包括粘合剂树脂和由金属薄膜获得的鳞片状金属粉末和细薄片中的至少一种,并形成在所述磁记录层上,并且还包括闪光 包含闪光粒子并形成在光反射量控制层上的涂层; 相对于400-700nm波长的入射光,漫反射光的最大反射率在设置有闪光涂层的部分上为20〜70%。
    • 3. 发明授权
    • Process for producing magnetic recording medium
    • 磁记录介质的制造方法
    • US08563148B2
    • 2013-10-22
    • US12863366
    • 2009-01-20
    • Satoshi HayakawaDaisuke YanoYoshikazu Yamazaki
    • Satoshi HayakawaDaisuke YanoYoshikazu Yamazaki
    • G11B5/66B32B5/16B29C65/02B29C65/00
    • G11B5/8408G11B5/725Y10T428/28Y10T428/2991
    • Subject: A process for producing a magnetic recording medium, having a magnetic recording layer and a protective layer on a substrate which is a non-magnetic support, wherein the medium is able to greatly inhibit migration of a lubricant from the protective layer to the surface of the metal pressing plate having a mirrored finish in a hot pressing step during production of the magnetic recording medium, while maintaining satisfactory scratch resistance, suitable adhesion with the magnetic recording layer and the protective layer, and excellent read and write properties of the magnetic recording medium.Means to Achieve the Subject: A process for producing a magnetic recording medium, comprising: forming a laminate on a substrate which is a non-magnetic support, wherein the laminate has an adhesive layer, a magnetic recording layer and a protective layer in this order from the side near the substrate, and embedding the laminate into the substrate by carrying out hot pressing on the protective layer to provide a level smooth plane formed by the surface of the substrate and the uppermost surface of the laminate; wherein the protective layer contains a binder resin and particles composed of a mixture including polyethylene and polytetrafluoroethylene.
    • 题目:一种制造磁记录介质的方法,在作为非磁性载体的基底上具有磁记录层和保护层,其中介质能够极大地抑制润滑剂从保护层向表面的迁移 的金属压板在制造磁记录介质时在热压步骤中具有镜面光洁度,同时保持令人满意的耐擦伤性,与磁记录层和保护层的适当粘合性以及良好的磁记录读写性能 中。 实现主题的手段:一种制造磁记录介质的方法,包括:在非磁性载体的基板上形成层压体,其中层压体按顺序具有粘合层,磁记录层和保护层 从衬底附近一侧,通过在保护层上进行热压,将层叠体嵌入基板,以提供由基板的表面和层叠体的最上表面形成的平坦的平面; 其中保护层含有粘合剂树脂和由包括聚乙烯和聚四氟乙烯的混合物组成的颗粒。
    • 4. 发明申请
    • Process For Producing Magnetic Recording Medium
    • 制备磁记录介质的方法
    • US20110045319A1
    • 2011-02-24
    • US12863366
    • 2009-01-20
    • Satoshi HayakawaDaisuke YanoYoshikazu Yamazaki
    • Satoshi HayakawaDaisuke YanoYoshikazu Yamazaki
    • G11B5/72B29C65/02G11B5/70
    • G11B5/8408G11B5/725Y10T428/28Y10T428/2991
    • Subject: A process for producing a magnetic recording medium, having a magnetic recording layer and a protective layer on a substrate which is a non-magnetic support, wherein the medium is able to greatly inhibit migration of a lubricant from the protective layer to the surface of the metal pressing plate having a mirrored finish in a hot pressing step during production of the magnetic recording medium, while maintaining satisfactory scratch resistance, suitable adhesion with the magnetic recording layer and the protective layer, and excellent read and write properties of the magnetic recording medium.Means to Achieve the Subject: A process for producing a magnetic recording medium, comprising: forming a laminate on a substrate which is a non-magnetic support, wherein the laminate has an adhesive layer, a magnetic recording layer and a protective layer in this order from the side near the substrate, and embedding the laminate into the substrate by carrying out hot pressing on the protective layer to provide a level smooth plane formed by the surface of the substrate and the uppermost surface of the laminate; wherein the protective layer contains a binder resin and particles composed of a mixture including polyethylene and polytetrafluoroethylene.
    • 题目:一种制造磁记录介质的方法,在作为非磁性载体的基底上具有磁记录层和保护层,其中介质能够极大地抑制润滑剂从保护层向表面的迁移 的金属压板在制造磁记录介质时在热压步骤中具有镜面光洁度,同时保持令人满意的耐擦伤性,与磁记录层和保护层的适当粘合性以及良好的磁记录读写性能 中。 实现主题的手段:一种制造磁记录介质的方法,包括:在非磁性载体的基板上形成层压体,其中层压体按顺序具有粘合层,磁记录层和保护层 从衬底附近一侧,通过在保护层上进行热压,将层叠体嵌入基板,以提供由基板的表面和层叠体的最上表面形成的平坦的平面; 其中保护层含有粘合剂树脂和由包括聚乙烯和聚四氟乙烯的混合物组成的颗粒。
    • 6. 发明授权
    • Magnetic recording medium
    • 磁记录介质
    • US07344073B2
    • 2008-03-18
    • US10472185
    • 2002-03-29
    • Yoshikazu YamazakiKazunari KawaiDaisuke YanoTesshu Miyahara
    • Yoshikazu YamazakiKazunari KawaiDaisuke YanoTesshu Miyahara
    • G06K7/08
    • G11B5/855G06K19/06196G11B5/70678G11B5/72G11B5/738
    • The present invention discloses a magnetic recording medium comprised by sequentially layering a magnetic recording layer, intermediate layer and concealment layer on a non-magnetic substrate made from a thermoplastic resin, wherein the surface of the intermediate layer forms a single smooth surface with the surface of the non-magnetic substrate as a result of embedding the magnetic recording layer and the intermediate layer within a portion of the non-magnetic substrate, and the concealment layer conceals the surface of the intermediate layer and the surface of the non-magnetic substrate. This magnetic recording medium has superior concealment and adhesion of the concealment layer for the magnetic recording layer as well as a high level of design properties regardless of the type of magnetic particles used in the magnetic recording layer.
    • 本发明公开了一种磁记录介质,其包括在由热塑性树脂制成的非磁性基板上依次层叠磁记录层,中间层和隐藏层,其中中间层的表面形成单个光滑表面,其表面为 该非磁性基板是将磁记录层和中间层嵌入在非磁性基板的一部分内的结果,并且隐藏层隐藏了中间层的表面和非磁性基板的表面。 该磁记录介质具有优良的隐藏层和用于磁记录层的隐蔽层以及高水平的设计特性,而与磁记录层中使用的磁性颗粒的类型无关。
    • 7. 发明授权
    • Magnetic recording medium and production method thereof
    • 磁记录介质及其制备方法
    • US08159784B2
    • 2012-04-17
    • US11571393
    • 2005-06-30
    • Yoshikazu YamazakiDaisuke Yano
    • Yoshikazu YamazakiDaisuke Yano
    • G11B3/74
    • G06K19/06196G11B5/70G11B5/80
    • The magnetic recording medium of the present invention has a pattern formed using a pattern-forming agent in a laminate of multiple layers including a base material and a magnetic recoding layer, wherein the pattern is recognized on the surface of the laminate opposite to the base material, and the pattern-forming agent is distributed through the thickness of the laminate, wherein a region between the center of the magnetic recording layer and a magnetic recording-reading side of the laminate has an area having a density gradient of the pattern-forming agent which gradually declines in the direction from the center of the magnetic recording layer to the magnetic recording-reading side.
    • 本发明的磁记录介质具有使用图案形成剂形成的图案,所述图案形成剂在包括基材和磁记录层的多层的叠层中,其中图案被识别在与基材相反的层叠体的表面上 ,并且图案形成剂通过层压体的厚度分布,其中磁记录层的中心和层叠体的磁记录读取侧之间的区域具有图案形成剂的密度梯度的区域 其从磁记录层的中心到磁记录读取侧的方向逐渐下降。