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公开(公告)号：US09607813B2
公开(公告)日：2017-03-28
申请号：US14319638
申请日：2014-06-30
申请人： Sony Corporation
发明人： Jun Sasaki , Atsuhiro Abe , Ryoichi Hiratsuka
CPC分类号： H01J37/3452 , C23C14/35 , H01F7/0278 , H01J37/3405 , H01J37/345 , H01J37/3455
摘要： Provided is a magnetic field generation apparatus including: two or more main magnetic pole portions configured to generate a main magnetic field; one or more secondary magnetic pole portions including a plurality of first divisional magnets obtained by a division, that generate a secondary magnetic field for adjusting the generated main magnetic field; and a yoke portion including one or more first yokes opposing the plurality of first divisional magnets in correspondence with the one or more secondary magnetic pole portions.
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公开(公告)号：US20140342189A1
公开(公告)日：2014-11-20
申请号：US14273694
申请日：2014-05-09
申请人： Sony Corporation
发明人： Junichi Tachibana , Jota Ito , Tomoe Ozaki , Ryoichi Hiratsuka , Noboru Sekiguchi , Tetsuo Endo
CPC分类号： G11B5/7379 , G11B5/65 , Y10T156/10
摘要： There is provided a magnetic recording medium including a base; a seed layer; a foundation layer; and a recording layer, the seed layer being disposed between the base and the foundation layer, having an amorphous state, including an alloy containing Ti, Cr and O, a percentage of Ti being 30 atomic % to 100 atomic % based on a total amount of Ti and Cr contained in the seed layer, and a percentage of O being 15 atomic % or less based on a total amount of Ti, Cr and O contained in the seed layer. Also, a production method thereof is provided.
摘要翻译： 提供一种包括基底的磁记录介质; 种子层; 基础层; 以及记录层，所述种子层设置在所述基底和所述基础层之间，具有非晶状态，包括含有Ti，Cr和O的合金，Ti的百分比为30原子％至100原子％，基于总量 包含在种子层中的Ti和Cr的含量，并且O的百分比基于种子层中所含的Ti，Cr和O的总量为15原子％以下。 另外，提供了其制造方法。
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公开(公告)号：US11468910B2
公开(公告)日：2022-10-11
申请号：US17275578
申请日：2019-08-29
申请人： Sony Corporation
发明人： Hiroto Atagi , Noboru Sekiguchi , Takashi Aizawa , Tomoe Ozaki , Koji Suzuki , Yoichi Kanemaki , Teruo Sai , Ryoichi Hiratsuka , Kazuya Hashimoto
摘要： A tape-like magnetic recording medium includes a reinforced substrate, and a recording layer arranged on the reinforced substrate, and the reinforced substrate includes a substrate that has a first face and a second face opposed to each other, and has an average thickness of 4 μm or smaller, and a metal layer that contains cobalt, arranged on the first face, the reinforced substrate by itself causing thereon a depth of indentation of 0.25 μm or shallower, when a 0.7-mm-diameter hard sphere is impressed against the second face under 5.0 gf load for 10 seconds.
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公开(公告)号：US11621020B2
公开(公告)日：2023-04-04
申请号：US16490279
申请日：2018-04-06
申请人： SONY CORPORATION
发明人： Junichi Tachibana , Takashi Aizawa , Teruo Sai , Noboru Sekiguchi , Tetsuo Endo , Tomoe Ozaki , Ryoichi Hiratsuka
摘要： A magnetic recording medium includes a flexible and elongated substrate, a soft magnetic layer having an average thickness of 10 nm or more to 50 nm or less, and a recording layer. The soft magnetic layer is disposed between the substrate and the recording layer, and a difference in Young's modulus between the magnetic recording medium and the substrate in a longitudinal direction of the substrate is 2.4 GPa or more.
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公开(公告)号：US11423936B2
公开(公告)日：2022-08-23
申请号：US14273694
申请日：2014-05-09
申请人： Sony Corporation
发明人： Junichi Tachibana , Jota Ito , Tomoe Ozaki , Ryoichi Hiratsuka , Noboru Sekiguchi , Tetsuo Endo
摘要： There is provided a magnetic recording medium including a base; a seed layer; a foundation layer; and a recording layer, the seed layer being disposed between the base and the foundation layer, having an amorphous state, including an alloy containing Ti, Cr and O, a percentage of Ti being 30 atomic % to 100 atomic % based on a total amount of Ti and Cr contained in the seed layer, and a percentage of O being 15 atomic % or less based on a total amount of Ti, Cr and O contained in the seed layer. Also, a production method thereof is provided.
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公开(公告)号：US20150014158A1
公开(公告)日：2015-01-15
申请号：US14319638
申请日：2014-06-30
申请人： Sony Corporation
发明人： Jun Sasaki , Atsuhiro Abe , Ryoichi Hiratsuka
CPC分类号： H01J37/3452 , C23C14/35 , H01F7/0278 , H01J37/3405 , H01J37/345 , H01J37/3455
摘要： Provided is a magnetic field generation apparatus including: two or more main magnetic pole portions configured to generate a main magnetic field; one or more secondary magnetic pole portions including a plurality of first divisional magnets obtained by a division, that generate a secondary magnetic field for adjusting the generated main magnetic field; and a yoke portion including one or more first yokes opposing the plurality of first divisional magnets in correspondence with the one or more secondary magnetic pole portions.
摘要翻译： 提供一种磁场产生装置，包括：两个或多个主磁极部分，被配置为产生主磁场; 一个或多个次级磁极部分，包括通过分割获得的多个第一分割磁体，其产生用于调节所产生的主磁场的次级磁场; 以及轭部，其包括与所述一个或多个次级磁极部对应的与所述多个第一分割磁体相对的一个或多个第一轭。
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