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公开(公告)号:US4380035A
公开(公告)日:1983-04-12
申请号:US184063
申请日:1980-09-04
申请人: Hiroshi Ota , Eiji Horigome , Hitoshi Azegami
发明人: Hiroshi Ota , Eiji Horigome , Hitoshi Azegami
IPC分类号: G11B23/087 , G11B23/04
CPC分类号: G11B23/08771
摘要: A magnetic tape cassette comprises a pad support membrane made of a metal alloy such as bronze and nickel silver. The pad support membrane is coated with a synthetic resin layer containing a rust inhibitor.
摘要翻译: 磁带盒包括由诸如青铜和镍银之类的金属合金制成的衬垫支撑膜。 衬垫支撑膜涂有含防锈剂的合成树脂层。
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公开(公告)号:US4289828A
公开(公告)日:1981-09-15
申请号:US98242
申请日:1979-11-28
申请人: Hiroshi Ota , Eiji Horigome , Hitoshi Azegami
发明人: Hiroshi Ota , Eiji Horigome , Hitoshi Azegami
CPC分类号: G11B5/7013 , Y10S428/90 , Y10T428/31565 , Y10T428/31609 , Y10T428/31794 , Y10T428/31935
摘要: A magnetic recording medium made by coating a base with a magnetic coating material which is a dispersion of magnetic particles in a binder of synthetic resins using a polyfunctional aromatic isocyanate as a curing agent, characterized by the addition of a sorbitan stearate type surface active agent which has a sorbitol derivative in the hydrophilic group. The present magnetic recording medium has superior mechanical properties, especially a superior running quality as well as superior electromagnetic properties.
摘要翻译: 使用多官能芳族异氰酸酯作为固化剂的磁性涂料将磁性粒子分散在合成树脂的粘合剂中的磁性涂料进行涂布而成的磁记录介质,其特征在于添加脱水山梨糖醇硬脂酸酯型表面活性剂,其中, 在亲水基团中具有山梨糖醇衍生物。 本磁记录介质具有优异的机械性能,特别是优越的运行质量以及优异的电磁特性。
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公开(公告)号:US4340644A
公开(公告)日:1982-07-20
申请号:US95647
申请日:1979-11-19
申请人: Hiroshi Ota , Eiji Horigome , Hitoshi Azegami
发明人: Hiroshi Ota , Eiji Horigome , Hitoshi Azegami
IPC分类号: C08G18/40 , C08G18/62 , C09D5/23 , C09D127/06 , C09D131/04 , G11B5/702 , G11B5/68
CPC分类号: G11B5/7028 , C08G18/4063 , C08G18/6212 , C09D127/06 , C09D131/04 , G11B5/7023 , Y10S428/90 , Y10T428/31565 , Y10T428/31609 , Y10T428/31797 , Y10T428/31935
摘要: A magnetic recording medium consisting of a base coated with magnetic coating material which is a dispersion of magnetic particles using a vinyl chloride-vinyl acetate copolymer and a polyester resin as binder, characterized by the addition of a vinyl chloride-vinyl acetate copolymer containing at least 10% of vinyl alcohol. The use of the last-mentioned copolymer improves the frequency response characteristic as well as the mechanical properties such as the running quality.
摘要翻译: 一种磁性记录介质,其由涂覆有磁性涂层材料的基底组成,该磁性涂层材料是使用氯乙烯 - 乙酸乙烯酯共聚物的磁性颗粒的分散体和作为粘合剂的聚酯树脂,其特征在于,加入至少含有氯乙烯 - 乙酸乙烯酯共聚物 10%乙烯醇。 使用最后提到的共聚物改善了频率响应特性以及诸如运行质量的机械性能。
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公开(公告)号:US4291100A
公开(公告)日:1981-09-22
申请号:US161573
申请日:1980-06-20
申请人: Eiji Horigome , Hiroshi Ota , Hitoshi Azegami
发明人: Eiji Horigome , Hiroshi Ota , Hitoshi Azegami
CPC分类号: G11B5/71 , Y10S428/90 , Y10T428/31573 , Y10T428/31576 , Y10T428/3158 , Y10T428/3192 , Y10T428/31935
摘要: A magnetic recording medium comprises a substrate coated with a magnetic layer wherein a magnetic powder is orientated in a binder and a polyoxyethylenesorbitane higher fatty acid ester surfactant.
摘要翻译: 磁记录介质包括涂覆有磁性层的基底,其中磁性粉末定向在粘合剂中,聚氧乙烯山梨糖醇高级脂肪酸酯表面活性剂。
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公开(公告)号:US4234438A
公开(公告)日:1980-11-18
申请号:US37779
申请日:1979-05-10
申请人: Eiji Horigome , Hiroshi Ota , Hitoshi Azegami
发明人: Eiji Horigome , Hiroshi Ota , Hitoshi Azegami
CPC分类号: G11B5/7023 , C08G18/6212 , C08L75/04 , G11B5/7022
摘要: A magnetic recording medium comprises a substrate coated with a magnetic coating composition comprising nitrocellulose impregnated with a vinyl chloride-vinyl acetate-vinyl alcohol copolymer having a content of vinyl alcohol component of 8 wt. % or more, a magnetic powder, a solvent, and a thermal crosslinking agent.
摘要翻译: 磁记录介质包括涂覆有磁性涂层组合物的基材,该组合物包含浸渍有乙烯醇组分含量为8重量%的氯乙烯 - 乙酸乙烯酯 - 乙烯醇共聚物的硝化纤维素。 %以上,磁性粉末,溶剂和热交联剂。
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公开(公告)号:US4305995A
公开(公告)日:1981-12-15
申请号:US175531
申请日:1980-08-05
申请人: Hiroshi Ota , Eiji Horigome , Hitoshi Azegami
发明人: Hiroshi Ota , Eiji Horigome , Hitoshi Azegami
CPC分类号: G11B5/71 , G11B5/7028 , Y10S428/90 , Y10T428/31551
摘要: A magnetic recording medium comprises a substrate coated with a magnetic layer comprising a magnetic powder, a thermosettable binder and a mixture of sorbitane mono-, di- and tri- higher fatty acid ester surfactants.
摘要翻译: 磁记录介质包括涂覆有磁性层的基材,其包含磁性粉末,可热固化粘合剂和脱水山梨糖醇单 - ,二 - 和三 - 高级脂肪酸酯表面活性剂的混合物。
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公开(公告)号:US4431702A
公开(公告)日:1984-02-14
申请号:US361245
申请日:1982-03-24
申请人: Hiroshi Kawahara , Hitoshi Azegami , Eiji Horigome
发明人: Hiroshi Kawahara , Hitoshi Azegami , Eiji Horigome
CPC分类号: G11B5/71 , Y10S428/90 , Y10T428/31544
摘要: A magnetic recording medium having a magnetic layer comprising a magnetic powder and a resin binder, which is characterized by that the magnetic layer contains an ethylene trifluoride chloride polymer of a low degree of polymerization and a fatty acid ester.
摘要翻译: 一种磁记录介质,其具有包含磁性粉末和树脂粘合剂的磁性层,其特征在于,磁性层含有低聚合度的三氟氯化亚乙基聚合物和脂肪酸酯。
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公开(公告)号:US4414288A
公开(公告)日:1983-11-08
申请号:US362653
申请日:1982-03-29
申请人: Hiroshi Kawahara , Hitoshi Azegami , Eiji Horigome
发明人: Hiroshi Kawahara , Hitoshi Azegami , Eiji Horigome
CPC分类号: G11B5/7022 , Y10S428/90 , Y10T428/31605 , Y10T428/31609 , Y10T428/31786 , Y10T428/31935
摘要: A magnetic recording medium which comprises a substrate coated with a magnetic paint which has a magnetic powder dispersed in a binder comprising a vinyl chloride - vinyl acetate copolymer containing at least 10% of polyvinyl alcohol, a urethane resin and a polyester resin.
摘要翻译: 一种磁记录介质,包括涂覆有磁性涂料的基材,该磁性涂料具有分散在包含至少10%的聚乙烯醇的氯乙烯 - 乙酸乙烯酯共聚物的粘合剂中的磁性粉末,聚氨酯树脂和聚酯树脂。
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公开(公告)号:US4423453A
公开(公告)日:1983-12-27
申请号:US283099
申请日:1981-07-13
申请人: Hiroshi Kawahara , Hitoshi Azegami , Eiji Horigome
发明人: Hiroshi Kawahara , Hitoshi Azegami , Eiji Horigome
CPC分类号: G11B5/716 , Y10S428/90 , Y10T428/24942
摘要: A magnetic recording medium having two coated magnetic layers of a first magnetic layer and a second magnetic layer on a non-magnetic substrate. The first magnetic layer has a coercive force of 400 to 590 Oe and a thickness of 2.1 to 2.8.mu. and said second magnetic layer has a coercive force of 590 to 800 Oe and a thickness of at least 2.1.mu..
摘要翻译: 一种在非磁性基板上具有第一磁性层和第二磁性层的两个涂覆磁性层的磁记录介质。 第一磁性层的矫顽力为400〜590Oe,厚度为2.1〜2.8μm,第二磁性层的矫顽力为590〜800Oe,厚度为2.1μm以上。
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公开(公告)号:US4315057A
公开(公告)日:1982-02-09
申请号:US192697
申请日:1980-10-01
申请人: Eiji Horigome , Hitoshi Azegami , Hiroshi Ohta
发明人: Eiji Horigome , Hitoshi Azegami , Hiroshi Ohta
CPC分类号: G11B5/7028 , Y10S428/90
摘要: A magnetic recording medium comprises a substrate coated with a magnetic layer comprising a magnetic powder and a binder and a rust inhibitor at a ratio of more than 0.1 wt. % based on resins of the binder.
摘要翻译: 磁记录介质包括涂覆有包含磁性粉末和粘合剂的磁性层的基材和防垢剂,其比例大于0.1wt。 %,基于粘合剂的树脂。
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