公开(公告)号：US5616398A

公开(公告)日：1997-04-01

申请号：US240475

申请日：1994-05-10

申请人： Shigeo Kurose ,  Yoshihiro Honjo ,  Akira Somiya

发明人： Shigeo Kurose ,  Yoshihiro Honjo ,  Akira Somiya

IPC分类号： C08F214/06 ,  C08F16/02 ,  C08F214/00 ,  C08F216/06 ,  C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D129/04 ,  C09D131/02 ,  G11B5/73 ,  G11B5/735 ,  G11B5/66 ,  G11B5/702

CPC分类号： G11B5/735 ,  Y10S428/90 ,  Y10T428/24355

摘要： A magnetic recording medium includes a non-magnetic base film, and a magnetic layer on one surface thereof and a back coat layer on the other surface thereof. The back coat layer contains two kinds of carbon blacks varying in the average particle diameter, and a binder containing two kinds of copolymers. These two copolymers comprise vinyl chloride, alkylcarboxylic acid vinyl ester and vinyl alcohol, one being a copolymer A having an average polymerization degree of 300 to 600, and the other a copolymer B having an average polymerization degree of 200 to 800. This makes it possible to achieve a magnetic recording medium having a back coat layer, which is excellent in surface properties and electromagnetic characteristics, and has high running stability and durability.

摘要翻译： 磁记录介质包括非磁性基膜和在其一个表面上的磁性层和在另一个表面上的背涂层。 背涂层含有两种平均粒径变化的炭黑和含有两种共聚物的粘合剂。 这两种共聚物包括氯乙烯，烷基羧酸乙烯基酯和乙烯醇，一种是平均聚合度为300-600的共聚物A，另一种是平均聚合度为200-800的共聚物B. 以获得具有表面性质和电磁特性优异的背涂层的磁记录介质，并且具有高的运行稳定性和耐久性。

公开(公告)号：US5510140A

公开(公告)日：1996-04-23

申请号：US353215

申请日：1994-12-01

申请人： Shigeo Kurose ,  Yoshihiro Honjo ,  Akira Somiya

发明人： Shigeo Kurose ,  Yoshihiro Honjo ,  Akira Somiya

IPC分类号： G11B5/735 ,  G11B5/84 ,  G11B5/842 ,  B05D3/12

CPC分类号： G11B5/735 ,  G11B5/84 ,  G11B5/842

摘要： A first object of the invention is to provide a magnetic recording medium having minimized dropouts immediately after preparation, a reduced dropout increase and an electromagnetic property loss with the lapse of time, and good durability of coatings such as a magnetic layer. A second object is to provide a magnetic recording medium including a backcoat layer having high durability and antistatic effect in addition to the above advantages. A third object is to achieve a productivity increase and a cost reduction in the manufacture of such a magnetic recording medium. To attain these objects, the invention provides a method for preparing a magnetic recording medium comprising a kneading step of kneading solids and a binder solution, a dispersing step of dispersing the solids in the compound resulting from the kneading step, and a viscosity adjusting step of adding a viscosity adjusting solution to the dispersion resulting from the dispersing step to form a paint composition wherein filtering steps are included after the steps for filtering fluids to be filtered (including the binder solution, compound, dispersion, viscosity adjusting solution, and paint) and a filter means having a 95% cut filtration precision within a specific range is used in each of the filtering steps.

摘要翻译： 本发明的第一个目的是提供一种磁记录介质，其在制备之后立即具有最小化的压差，减少的压差增加和随时间的电磁特性损失以及诸如磁性层的涂层的良好的耐久性。 第二个目的是提供一种除了上述优点之外，还包括具有高耐久性和抗静电效果的背涂层的磁记录介质。 第三个目的是在这种磁记录介质的制造中实现生产率提高和成本降低。 为了实现这些目的，本发明提供一种制备磁记录介质的方法，该方法包括捏合固体和粘合剂溶液的捏合步骤，将固体分散在由捏合步骤得到的化合物中的分散步骤和粘度调节步骤 向由分散步骤得到的分散液中加入粘度调节溶液以形成涂料组合物，其中在过滤待过滤流体（包括粘合剂溶液，化合物，分散体，粘度调节溶液和涂料）的步骤之后包括过滤步骤和 在每个过滤步骤中使用在特定范围内具有95％切割过滤精度的过滤器装置。

公开(公告)号：US5935714A

公开(公告)日：1999-08-10

申请号：US764975

申请日：1996-12-13

申请人： Shigeo Kurose ,  Akira Somiya

发明人： Shigeo Kurose ,  Akira Somiya

IPC分类号： C08L27/06 ,  C08L75/00 ,  C08L75/04 ,  C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D175/00 ,  C09D175/04 ,  G11B5/702

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

摘要： A magnetic recording medium having good dispersibility, dispersion stability of a magnetic paint and electromagnetic characteristics, and excellent running durability and still characteristics, comprises a non-magnetic support and a magnetic layer formed thereon which is mainly composed of a magnetic powder and a binder, wherein said binder is a mixture ofi) a vinyl chloride copolymer having amine-modified vinyl units and acidic functional group-containing vinyl units in a molecule,ii) a polyurethane resin having a number average molecular weight of 5000 to 25000 (Mn 1), andiii) a polyurethane resin having a number average molecular weight of higher than 25000 to 100000 (Mn 2).

摘要翻译： 具有良好的分散性，磁性涂料的分散稳定性和电磁特性以及优异的运行耐久性和静止特性的磁记录介质包括主要由磁性粉末和粘合剂组成的非磁性支持体和形成在其上的磁性层， 其中所述粘合剂是i）在分子中具有胺改性的乙烯基单元和含酸性官能团的乙烯基单元的氯乙烯共聚物的混合物，ii）数均分子量为5000至25000（Mn 1）的聚氨酯树脂， ，和iii）数均分子量高于25000〜100000（Mn 2）的聚氨酯树脂。

公开(公告)号：US06265032B1

公开(公告)日：2001-07-24

申请号：US08772571

申请日：1996-12-26

申请人： Shigeo Kurose ,  Akira Somiya

发明人： Shigeo Kurose ,  Akira Somiya

IPC分类号： H01F100

CPC分类号： G11B5/8404

摘要： This invention permits formation of a magnetic coating excelling in the degree of orientation in spite of a decrease in the thickness thereof and ensures impartation of a high degree of packing and high durability to the magnetic layer of a small thickness because of the infallible presence of a backcoat layer in an undried state (particularly a wet state) while the magnetic layer is in an undried state (particularly a wet state). It also allows efficient formation of a backcoat layer which used to impose a heavy load on the conventional process of manufacture. Preferably, this invention has the calendering work performed in the in-line system such that the surface quality of the magnetic layer may be exalted by improving the operational efficiency of the calendering step and, as a result, the loss of the applied layer of the paint which used to occur during the course of the calendering step in the conventional separate line may be decreased.

摘要翻译： 本发明允许形成优异的取向度的磁性涂层，尽管其厚度减小，并且确保赋予厚度较小的磁性层的高度填充和高耐久性，因为可靠地存在 而在磁性层处于未干燥状态（特别是湿润状态）时，处于未干燥状态（特别是湿润状态）的背涂层。 它还允许有效地形成用于在常规制造方法上施加重负荷的背涂层。 优选地，本发明具有在线系统中进行的压延工作，使得可以通过提高压延步骤的操作效率来提高磁性层的表面质量，结果，施加的层的损失 可以减少在常规分离线中的压延步骤过程中发生的涂料。

公开(公告)号：US6063500A

公开(公告)日：2000-05-16

申请号：US764976

申请日：1996-12-13

申请人： Shigeo Kurose ,  Akira Somiya

发明人： Shigeo Kurose ,  Akira Somiya

IPC分类号： C08L27/06 ,  C08L75/00 ,  C08L75/04 ,  C09D5/23 ,  C09D127/04 ,  C09D127/06 ,  C09D175/00 ,  C09D175/04 ,  G11B5/702

CPC分类号： G11B5/7022 ,  Y10T428/31609 ,  Y10T428/31935

摘要： A magnetic recording medium having excellent electromagnetic characteristics and running durability includes a non-magnetic support and a magnetic layer formed thereon which is composed mainly of a magnetic powder and a binder, the binder being a mixture ofi) a vinyl chloride copolymer having amine-modified vinyl units and acidic functional group-containing vinyl units in a molecule,ii) a polyurethane resin having a glass transition temperature (Tg) of -50.degree. C. to 0.degree. C. (Tg 1), andiii) a polyurethane resin having a glass transition temperature (Tg) of higher than 0.degree. C. to 80.degree. C. (Tg 2).

摘要翻译： 具有优异的电磁特性和运行耐久性的磁记录介质包括主要由磁性粉末和粘合剂组成的非磁性载体和形成在其上的磁性层，所述粘合剂是i）具有胺 - 改性乙烯基单元和分子中含酸性官能团的乙烯基单元，ii）玻璃化转变温度（Tg）为-50℃至0℃（Tg 1）的聚氨酯树脂，和iii）聚氨酯树脂 玻璃化转变温度（Tg）高于0℃至80℃（Tg 2）。

公开(公告)号：US5851650A

公开(公告)日：1998-12-22

申请号：US798104

申请日：1997-02-12

申请人： Akira Somiya ,  Shigeo Kurose

发明人： Akira Somiya ,  Shigeo Kurose

IPC分类号： C09D5/23 ,  G11B5/70 ,  G11B5/73 ,  G11B5/735

CPC分类号： G11B5/7325 ,  G11B5/735 ,  Y10S428/90 ,  Y10T428/25 ,  Y10T428/26 ,  Y10T428/31935

摘要： The magnetic recording medium of this invention comprises a magnetic layer formed on one of the opposite surfaces of a nonmagnetic support and a backcoat layer using a nonmagnetic powder and a binder as main components thereof and formed on the other surface thereof and uses as the binder in the backcoat layer a vinyl chloride-based copolymer having an amine-modified vinyl unit and an acidic functional group-containing vinyl unit. Owing to this construction, a paint to be used therein realizes perfect dispersibility and perfect stability. As a result, the backcoat layer to be formed therein is enabled to acquire excellent surface properties and the magnetic recording medium to be finally produced is allowed to exhibit an excellent electromagnetic conversion property.

摘要翻译： 本发明的磁记录介质包括在非磁性载体的相对表面之一上形成的磁性层和使用非磁性粉末和粘合剂作为其主要成分的背涂层，并在其另一个表面上形成并用作粘合剂 背涂层具有胺改性乙烯基单元和含酸官能团的乙烯基单元的氯乙烯基共聚物。 由于这种结构，所用的涂料实现了完美的分散性和完美的稳定性。 结果，其中形成的背涂层能够获得优异的表面性质，并且允许最终生产的磁记录介质表现出优异的电磁转换性能。

公开(公告)号：US20070268277A1

公开(公告)日：2007-11-22

申请号：US11798082

申请日：2007-05-10

申请人： Chieko Yamada ,  Shigeo Kurose ,  Koichi Hikida

发明人： Chieko Yamada ,  Shigeo Kurose ,  Koichi Hikida

IPC分类号： G06F3/042

CPC分类号： H01L31/1884 ,  G02F2001/133776 ,  G02F2203/03 ,  Y02E10/50

摘要： A transparent conductor includes a film-shaped or plate-shaped support and a transparent conductive layer that is disposed on the support and has a surface formed as a rough surface. The surface of the transparent conductive layer is formed so that a maximum peak height that shows a surface roughness of the surface is in a range of 0.35 μm to 0.43 μm, inclusive.

摘要翻译： 透明导体包括薄膜状或板状的支撑体和设置在支撑体上并具有形成为粗糙表面的表面的透明导电层。 形成透明导电层的表面，使得表面的表面粗糙度的最大峰高在0.35μm〜0.43μm的范围内。

公开(公告)号：US06824924B1

公开(公告)日：2004-11-30

申请号：US09719575

申请日：2001-01-02

申请人： Shigeo Kurose ,  Tadayoshi Iijima

发明人： Shigeo Kurose ,  Tadayoshi Iijima

IPC分类号： H01M614

CPC分类号： H01M4/131 ,  H01M4/625 ,  H01M10/052 ,  Y10T29/49112

摘要： An electrolyte for a nonaqueous electrolyte battery having improved charge and discharge characteristics such as discharge capacity and charge/discharge cycle life and the like. The electrode comprises an electrode active material layer including at least a positive electrode active material, a conductive agent and a binder. The crushed, expanded graphite is used as the conductive agent. The crushed expanded graphite preferably has a median particle diameter of 0.1 to 40 &mgr;m. The quantity of the conductive agent in the electrode active material layer is preferably 0.1 to 15% by weight.

摘要翻译： 具有放电容量，充放电循环寿命等充放电特性改善的非水电解质电池用电解液。 电极包括至少包括正极活性物质，导电剂和粘合剂的电极活性物质层。 粉碎的膨胀石墨用作导电剂。 粉碎的膨胀石墨的中值粒径优选为0.1〜40μm。 电极活性物质层中的导电剂的量优选为0.1〜15重量％。

公开(公告)号：US06040034A

公开(公告)日：2000-03-21

申请号：US64312

申请日：1998-04-23

申请人： Kesao Okada ,  Shigeo Kurose

发明人： Kesao Okada ,  Shigeo Kurose

IPC分类号： B24B21/00 ,  B24D3/34 ,  B24D11/00 ,  G11B5/187 ,  G11B5/41 ,  G11B5/84 ,  D06N7/04

CPC分类号： B24D11/005 ,  B24B21/00 ,  B24D3/34 ,  G11B5/1871 ,  G11B5/84 ,  G11B5/41 ,  Y10T428/24372 ,  Y10T428/24405 ,  Y10T428/24421

摘要： Described is a lapping tape having, on a flexible substrate, a lapping layer formed by coating a paint for the formation of a lapping layer which contains inorganic powders, a binder and solvents, and then drying. In the lapping tape according to the present invention, the solvents in the paint contain an organic solvent having a boiling point of 120.degree. C. or higher in an amount of 20 to 60 wt. % based on the total amount of organic solvents; the lapping layer has a thickness of 3 to 25 .mu.m; and the remaining amount of the solvents in the lapping layer is 500 g/m.sup.3. The present invention therefore brings about excellent advantages that the lapping scratches on the surface to the lapped can be prevented to the utmost; peeling of the lapping layer from the lapping tape can be suppressed; and the lapping tape has excellent lapping ability.

摘要翻译： 描述了一种研磨带，其在柔性基板上具有通过涂覆用于形成包含无机粉末，粘合剂和溶剂的研磨层的涂料，然后干燥而形成的研磨层。 在根据本发明的研磨带中，涂料中的溶剂含有沸点为120℃或更高的有机溶剂，其量为20至60重量％。 基于有机溶剂总量的％; 研磨层的厚度为3〜25μm; 研磨层中的溶剂的剩余量为500g / m 3。 因此，本发明具有能够最大限度地防止研磨表面上研磨划伤的优点。 可以抑制研磨层从研磨带的剥离; 研磨带具有优异的研磨能力。

公开(公告)号：US07201978B2

公开(公告)日：2007-04-10

申请号：US10996408

申请日：2004-11-26

申请人： Hiroyuki Tanaka ,  Shigeo Kurose

发明人： Hiroyuki Tanaka ,  Shigeo Kurose

IPC分类号： G11B5/66

CPC分类号： G11B5/738 ,  G11B5/7026

摘要： A magnetic recording medium contains a non-magnetic substrate, a non-magnetic layer arranged on or above one side of the non-magnetic substrate and containing a non-magnetic powder, a carbon black and a binder resin, and a magnetic layer being arranged on or above the non-magnetic layer and containing a ferromagnetic powder and a binder resin, in which the binder resin of the non-magnetic layer contains an electron-beam-curable resin having an adsorption with respect to the non-magnetic powder of less than 2.2 mg per square meter in terms of a specific surface area determined according to a BET method. The magnetic recording medium can carry out high-density recording and exhibits improved electromagnetic conversion properties and a reduced error rate.

摘要翻译： 磁记录介质包含非磁性基板，非磁性层，其布置在非磁性基板的一侧或上侧，并且包含非磁性粉末，炭黑和粘合剂树脂，并且布置有磁性层 在非磁性层上或上方，并含有铁磁性粉末和粘结剂树脂，其中非磁性层的粘合剂树脂含有相对于非磁性粉末吸附的电子束固化树脂较少 根据BET法测定的比表面积为2.2mg /平方米。 磁记录介质可以执行高密度记录，并且显示出改善的电磁转换特性和降低的误码率。