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145 条记录 (耗时 0.025 秒)

    Method of producing magnetic recording medium
    6.
    发明授权
    Method of producing magnetic recording medium 失效
    制造磁记录介质的方法

    公开(公告)号：US4260466A

    公开(公告)日：1981-04-07

    申请号：US771583

    申请日：1977-02-24

    申请人： Ryuji Shirahata ,  Tatsuji Kitamoto ,  Yasuyuki Yamada ,  Goro Akashi

    发明人： Ryuji Shirahata ,  Tatsuji Kitamoto ,  Yasuyuki Yamada ,  Goro Akashi

    IPC分类号： G11B5/85 ,  C09D5/23 ,  C23C14/06 ,  C23C14/24 ,  C23C14/34 ,  G11B5/84 ,  G11B5/851 ,  H01F10/02

    CPC分类号： G11B5/8416 ,  C23C14/06 ,  G11B5/851 ,  Y10S428/90 ,  Y10T428/31721

    摘要： A method of producing a magnetic recording layer on a support comprising simultaneously depositing a ferromagnetic material and a polymer on a support using a vapor deposition technique such as vacuum deposition, sputtering, etc., thereby to produce thereon a magnetic recording layer of a composite film of the ferromagnetic material and the polymer. A further embodiment for producing a magnetic recording layer comprises simultaneously depositing a ferromagnetic material and a monomer or oligomer on the support using a vapor deposition technique, polymerizing the deposited layer, e.g., using a polymerization catalyst or by applying ionizing or electromagnetic rays thereto, to form a composite film of the ferromagnetic material and the polymer. The magnetic recording layer thus obtained in either embodiment can be used for high density recording.

    摘要翻译： 一种在支撑体上制造磁记录层的方法，包括使用诸如真空沉积，溅射等的气相沉积技术在载体上同时沉积铁磁材料和聚合物，从而在其上制备复合膜的磁记录层 的铁磁材料和聚合物。 用于制造磁记录层的另一实施例包括使用气相沉积技术同时在支撑体上沉积铁磁材料和单体或低聚物，使沉积层聚合，例如使用聚合催化剂或通过向其施加电离或电磁辐射至 形成铁磁材料和聚合物的复合膜。 这样获得的磁记录层可用于高密度记录。

    Process of producing a magnetic recording element
    8.
    发明授权
    Process of producing a magnetic recording element 失效
    制造磁记录元件的工艺

    公开(公告)号：US4183976A

    公开(公告)日：1980-01-15

    申请号：US870146

    申请日：1978-01-17

    申请人： Yasuyuki Yamada ,  Tatsuji Kitamoto

    发明人： Yasuyuki Yamada ,  Tatsuji Kitamoto

    IPC分类号： G11B5/738 ,  H01F10/00

    CPC分类号： G11B5/738

    摘要： A process of producing a magnetic recording element comprising a non-magnetic support having provided thereon a subbing layer and further having provided thereon a magnetic layer comprising a ferromagnetic powder and a binder, in which the non-magnetic support is a biaxially stretched polyester and the subbing layer is formed by coating a coating solution having a solids concentration of about 0.8 to about 5 wt% comprising an amorphous linear saturated polyester resin containing an aromatic dicarboxylic acid, 10 to 50 wt% of a vinylidene chloride addition polymerizable nitrile copolymer based on the polyester resin and an organic solvent mainly composed of methyl ethyl ketone, which comprises coating the subbing solution at a temperature of about 100.degree. C. or below to provide a dry thickness of about 0.03 to about 2.0 .mu.m, drying the coated layer and then coating the magnetic recording layer thereon.

    摘要翻译： 一种制造磁记录元件的方法，该磁记录元件包括非磁性载体，其上设置有一个底层，并且还设置有包含铁磁性粉末和粘合剂的磁性层，其中非磁性载体是双轴拉伸的聚酯， 通过涂布固体浓度为约0.8至约5重量％的涂布溶液，其包含含有芳族二羧酸的无定形线性饱和聚酯树脂，10至50重量％的偏二氯乙烯加成聚合性腈共聚物，基于 聚酯树脂和主要由甲基乙基酮组成的有机溶剂，其包括在约100℃或更低的温度下涂覆底层溶液以提供约0.03至约2.0μm的干燥厚度，干燥涂层，然后 在其上涂覆磁记录层。

    Process for producing magnetic recording device
    9.
    发明授权
    Process for producing magnetic recording device 失效
    磁记录装置的制造方法

    公开(公告)号：US4368237A

    公开(公告)日：1983-01-11

    申请号：US38620

    申请日：1979-05-14

    申请人： Yasuyuki Yamada ,  Tatsuji Kitamoto ,  Goro Akashi

    发明人： Yasuyuki Yamada ,  Tatsuji Kitamoto ,  Goro Akashi

    IPC分类号： C09D5/23 ,  G11B5/702 ,  G11B5/842 ,  H01F10/02

    CPC分类号： G11B5/7022 ,  Y10S428/90 ,  Y10T428/31511 ,  Y10T428/31609 ,  Y10T428/31725 ,  Y10T428/31935

    摘要： A magnetic recording material having superior abrasion resistance and thermal stability is produced by coating a magnetic coating composition consisting essentially of aqueous emulsions of at least two resin binders capable of reacting with each other upon mixing, and being present therein in the separated state, and a ferromagnetic powder on a non-magnetic support, drying the coating, and curing the resulting magnetic recording layer where drying is insufficient to effect curing. Hazards ascribable to the use of organic solvents in conventional techniques can be obviated by this invention.

    摘要翻译： 具有优异的耐磨性和热稳定性的磁记录材料通过涂覆基本上由至少两种混合后能够彼此反应并且以分离状态存在的树脂粘合剂的水乳液组成的磁性涂料组合物， 铁磁粉末在非磁性载体上，干燥涂层，并固化所得到的磁记录层，其中干燥不足以实现固化。 本发明可以避免归因于常规技术中使用有机溶剂的危害。