-
公开(公告)号：US4663217A
公开(公告)日：1987-05-05
申请号：US767240
申请日：1985-08-19
IPC分类号： C09D101/18 , C09D175/04 , G11B5/73 , G11B5/735 , B32B5/16
CPC分类号： G11B5/735 , Y10T428/24942 , Y10T428/25 , Y10T428/31551 , Y10T428/31725
摘要： A magnetic recording medium comprised of a nonmagnetic support base having a magnetic recording layer on one surface thereof and a backing layer on the other surface thereof is disclosed. The backing layer is comprised of (1) carbon black having a particle size in the range of 10 to 150 m.mu., (2) graphite having a particle size of 3.mu. or less, and (3) a curing agent. By utilizing this particular backing layer the resulting recording medium has improved durability with respect to the backing layer and shows a decreased in the number of dropouts and scratches during use.
摘要翻译： 公开了一种磁记录介质，其包括在其一个表面上具有磁记录层的非磁性支撑基底和在另一表面上的背衬层。 背衬层由（1）粒径为10〜150μm的碳黑，（2）粒径为3μm以下的石墨，（3）固化剂构成。 通过利用这种特定的背衬层，所得到的记录介质相对于背衬层具有改进的耐久性，并且在使用期间显示掉落数量和划痕数量减少。
-
公开(公告)号：US4497864A
公开(公告)日：1985-02-05
申请号：US511359
申请日：1983-07-06
CPC分类号： G11B5/71 , Y10S428/90 , Y10T428/25 , Y10T428/266 , Y10T428/27
摘要： A magnetic recording medium is disclosed. The medium is comprised of a support base having coated thereon a magnetic layer comprised of ferromagnetic particles dispersed in a binder and further comprised of at least one anhydrosorbitol di- and/or tetra-fatty acid non-hydroxy ester. By including the particularly disclosed fatty acid non-hydroxy ester the running properties of the magnetic recording medium are greatly improved.
摘要翻译： 公开了一种磁记录介质。 该介质包括其上涂覆有由分散在粘合剂中的铁磁性颗粒组成的磁性层并且还包含至少一种脱水山梨糖醇二 - 和/或四脂肪酸非羟基酯的支撑基底。 通过包括特别公开的脂肪酸非羟基酯，磁记录介质的运行特性大大提高。
-
公开(公告)号：US4338643A
公开(公告)日：1982-07-06
申请号：US138368
申请日：1980-04-08
申请人： Eiichi Tadokoro
发明人： Eiichi Tadokoro
摘要： In a method of making a magnetic recording sheet, a magnetic material is applied on a web in a layer consisting of a number of contiguous first strip-like zones and second strip-like zones which are alternately arranged in parallel to each other. The ratio of the width of the first strip-like zone to that of the second strip-like zone is within a range of 1:3 to 3:1. In the first strip-like zones having a width of not more than 5 mm the magnetic particles are oriented in a first direction, and in the second strip-like zones magnetic particles are oriented in a second direction which is inclined with respect to the first direction at an angle from 60.degree. to 120.degree.. With this particular orientation of the magnetic particles in the magnetic layer when the magnetic layer is applied on a web, the orientation of the magnetic particles become almost random while the magnetic layer is hardened. The magnetic recording disc thus prepared has a very low output fluctuation and a higher output level.
摘要翻译： 在制造磁记录纸的方法中，将磁性材料施加在由多个彼此平行交替布置的多个邻接的第一带状区域和第二带状区域构成的层中。 第一带状区域的宽度与第二带状区域的宽度的比率在1:3至3:1的范围内。 在宽度不大于5mm的第一带状区域中，磁性颗粒沿第一方向取向，并且在第二带状区域中，磁性颗粒在相对于第一方向倾斜的第二方向上定向 方向为60°〜120°。 当将磁性层施加在幅材上时，磁性颗粒在磁性层中的这种特定取向，磁性层硬化时磁性颗粒的取向几乎是随机的。 如此制备的磁记录盘具有非常低的输出波动和更高的输出电平。
-
公开(公告)号：US3987900A
公开(公告)日：1976-10-26
申请号：US606786
申请日：1975-08-22
申请人： Eiichi Tadokoro , Akira Ishii , Tatsuji Kitamoto , Osamu Suzuki
发明人： Eiichi Tadokoro , Akira Ishii , Tatsuji Kitamoto , Osamu Suzuki
摘要： A foldable jacket made of a sheet material of rectangular shape and folded at the central portion thereof to form a square base sheet and a square cover sheet. The cover sheet is provided with a cut-away portion extending from an edge opposite to the folded edge to the central part thereof. The base sheet is provided with a disc holding portion at the central part thereof to be engaged with a central hole of the disc. The disc holding portion is composed of a stem portion and engaging portions. The engaging portions are made flexible and releasably engaged with the hole of the disc.
-
公开(公告)号：US4756960A
公开(公告)日：1988-07-12
申请号：US920164
申请日：1986-10-17
CPC分类号： G11B5/627 , Y10S428/90 , Y10T428/257 , Y10T428/265
摘要： An abrasive tape comprises a flexible non-magnetic substrate, and an abrasive coating film essentially consisting of an abrasive material, a binder and an additive kneaded together and applied onto the flexible non-magnetic substrate. The abrasive material has a Mohs hardness of 6 or higher, and the binder essentially consists of a vinyl chloride-vinyl acetate copolymer, a prepolymer having an isocyanate group at a terminal, and an organic amine.
摘要翻译： 研磨带包括柔性非磁性基材，以及基本上由研磨材料，粘合剂和捏合在一起并施加到柔性非磁性基材上的添加剂组成的研磨涂层膜。 研磨材料的莫氏硬度为6以上，粘合剂主要由氯乙烯 - 乙酸乙烯酯共聚物，末端具有异氰酸酯基的预聚物和有机胺组成。
-
公开(公告)号：US4696858A
公开(公告)日：1987-09-29
申请号：US789221
申请日：1985-10-18
申请人： Katsumi Ryoke , Nobutaka Yamaguchi , Masatoshi Takahashi , Kazuko Hanai , Hideaki Kosha , Eiichi Tadokoro
发明人： Katsumi Ryoke , Nobutaka Yamaguchi , Masatoshi Takahashi , Kazuko Hanai , Hideaki Kosha , Eiichi Tadokoro
IPC分类号： C09D5/23 , C09D127/04 , C09D127/06 , C09D175/00 , C09D175/04 , G11B5/73 , G11B5/735 , G11B5/70
CPC分类号： G11B5/735 , Y10S428/90 , Y10T428/25
摘要： A magnetic recording medium is described, comprising a non-magnetic support having provided thereon a magnetic layer being provided on one surface of the support and a backing layer being provided on the surface of the support opposite to said magnetic layer, the backing layer containing (A) a binder comprised of resin having a 100% modulus of 150 kg/cm.sup.2 or less present in an amount of 50 to 95 wt % based on the total weight amount of binder and (B) non-magnetic particles comprised of (i) carbon black having an average particle size of more than 0.1 .mu.m to 1.0 .mu.m, and (ii) carbon black having an average particle size of 0.01 .mu.m to 0.1 .mu.m in a weight ratio of carbon black (i)/carbon black (ii) of 95/5 to 5/95, with the non-magnetic particles in the backing layer being present in an amount of 40 to 300 parts by weight per 100 parts by weight of the total binder.
摘要翻译： 描述了一种磁记录介质，包括其上设置有磁性层的非磁性载体，其设置在支撑体的一个表面上，背衬层设置在与所述磁性层相对的支撑体的表面上，背衬层包含 A）由基于粘合剂总重量的50至95重量％的量的100％模量为150kg / cm 2或更低的树脂组成的粘合剂和（B）由（i）组成的非磁性颗粒， 平均粒径大于0.1μm〜1.0μm的炭黑，（ii）碳黑（i）/炭黑（i）的重量比的平均粒径为0.01μm〜0.1μm的炭黑 （ii）为95/5至5/95，背衬层中的非磁性颗粒以每100重量份总粘合剂为40至300重量份的量存在。
-
公开(公告)号：US4552798A
公开(公告)日：1985-11-12
申请号：US577919
申请日：1984-02-07
申请人： Katsumi Ryoke , Yasuhiro Abe , Shinobu Iida , Eiichi Tadokoro
发明人： Katsumi Ryoke , Yasuhiro Abe , Shinobu Iida , Eiichi Tadokoro
IPC分类号： G11B5/78 , C09D5/23 , C09D101/18 , C09D127/04 , C09D127/06 , C09D175/00 , C09D175/04 , C10M105/34 , C10N40/18 , G11B5/72 , G11B23/50
CPC分类号： G11B5/72 , G11B23/50 , Y10S428/90 , Y10T428/24793 , Y10T428/27
摘要： A magnetic recording medium comprised of a support base having a magnetic recording layer positioned thereon is disclosed. The recording medium has positioned an aliphatic acid ester compound on an edge portion of the surface of the recording layer. By utilizing the aliphatic acid ester the recording medium has less audio output variation and the tracking control of the medium is improved. Further, the medium has good running characteristics and excellent sensitivity.
摘要翻译： 公开了一种磁记录介质，其由具有位于其上的磁记录层的支撑基底组成。 记录介质在记录层的表面的边缘部分上定位了脂族酸酯化合物。 通过利用脂肪酸酯，记录介质具有较少的音频输出变化，并且改善了介质的跟踪控制。 此外，介质具有良好的运行特性和优异的灵敏度。
-
公开(公告)号：US4551386A
公开(公告)日：1985-11-05
申请号：US596776
申请日：1984-04-04
申请人： Nobutaka Yamaguchi , Shinobu Iida , Masahiro Utsumi , Toshimitu Okutu , Kenichi Masuyama , Eiichi Tadokoro
发明人： Nobutaka Yamaguchi , Shinobu Iida , Masahiro Utsumi , Toshimitu Okutu , Kenichi Masuyama , Eiichi Tadokoro
CPC分类号： G11B5/735 , Y10S428/90 , Y10T428/25 , Y10T428/265 , Y10T428/30
摘要： A magnetic recording material comprised of a non-magnetic support base having provided thereon a magnetic recording layer on one side and the back layer on the other side is disclosed. The magnetic recording layer is comprised of ferromagnetic particles dispersed in a binder in combination with carbon black particles having an average primary particle size of 30 .mu.m or less. The back layer is comprised of a binder having dispersed therein carbon black having an average primary particle size in the range of 50 to 150 m.mu.. The magnetic recording material has improved electromagnetic properties and improved durability, particularly with respect to video S/N and dropout.
摘要翻译： 公开了一种磁记录材料，其包括在一侧上设置有磁记录层的非磁性支撑基底和另一侧上的背层。 磁记录层由分散在粘合剂中的铁磁颗粒与平均一次粒径为30μm以下的炭黑颗粒组合而成。 背层由其中分散有平均一次粒径在50-150μm的碳黑的粘合剂组成。 磁记录材料具有改进的电磁特性和改善的耐久性，特别是在视频S / N和压差方面。
-
公开(公告)号：US4539257A
公开(公告)日：1985-09-03
申请号：US599917
申请日：1984-04-13
CPC分类号： G11B5/708 , Y10S428/90 , Y10T428/25 , Y10T428/265
摘要： A magnetic recording medium comprised of a nonmagnetic support base having a magnetic layer provided thereon is disclosed. The magnetic layer includes ferromagnetic particles dispersed in a binder in combination with carbon black particles. The carbon black particles have an average primary particle size in the range of 30 m.mu. to 50 m.mu.. Further, the carbon black is capable of the adsorption of 120 ml or more of dibutyl phthalate per 100 g of carbon black. By utilizing the particular carbon black of the present invention it is possible to obtain a magnetic recording medium having improved running properties.
摘要翻译： 公开了一种由其上设置有磁性层的非磁性支撑基体构成的磁记录介质。 磁性层包括分散在粘合剂中的炭黑颗粒与炭黑颗粒的组合。 炭黑粒子的平均一次粒径在30μm〜50μm的范围内。 此外，炭黑能够每100g炭黑吸附120ml或更多的邻苯二甲酸二丁酯。 通过利用本发明的特定炭黑，可以获得具有改善的运行特性的磁记录介质。
-
公开(公告)号：US4108739A
公开(公告)日：1978-08-22
申请号：US786926
申请日：1977-04-12
申请人： Eiichi Tadokoro , Tatsuji Kitamoto
发明人： Eiichi Tadokoro , Tatsuji Kitamoto
CPC分类号： C25D5/10 , C25D3/562 , Y10S204/09
摘要： A method for electroplating in a single electroplating bath comprising varying the electric current density so that a non-magnetic plated film and a ferromagnetic plated film are selectively deposited. To achieve this effect the electroplating bath must contain at least about 1 g/l NaH.sub.2 PO.sub.2.H.sub.2 O.
摘要翻译： 一种用于在单个电镀浴中电镀的方法，包括改变电流密度，使得非磁性镀膜和铁磁镀膜被选择性沉积。 为了达到这个效果，电镀浴必须含有至少约1g / l NaH 2 PO 2·H 2 O.
-
-
-
-
-
-
-
-
-
搜索结果
40 条记录 (耗时 0.024 秒)
