公开(公告)号：US5888637A

公开(公告)日：1999-03-30

申请号：US869314

申请日：1997-06-05

申请人： Yutaka Kakuishi ,  Satoru Hayakawa ,  Toru Nakao

发明人： Yutaka Kakuishi ,  Satoru Hayakawa ,  Toru Nakao

IPC分类号： B32B7/02 ,  B32B9/00 ,  G11B5/70 ,  G11B5/73 ,  G11B5/735 ,  G11B5/738 ,  G11B5/68

CPC分类号： G11B5/738 ,  G11B5/70 ,  G11B5/7305 ,  G11B5/735 ,  Y10S428/90 ,  Y10T428/24975 ,  Y10T428/25 ,  Y10T428/257 ,  Y10T428/265

摘要： A magnetic recording tape favorably employable for computer data storage has a flexible polymer web, a magnetic recording layer arranged on one surface side of the web via a non-magnetic undercoating layer, and a back-coating layer arranged on another surface side of the web, wherein the magnetic recording tape has a thickness of not more than 8 .mu.m; the non-magnetic undercoating layer has a thickness of 0.5 to 2.0 .mu.m; the magnetic recording layer has a thickness of 0.5 to 1.0 .mu.m; the polymer web has a Young's modules of not lower than 700 kg/mm.sup.2 in its width direction; and the back-coating layer is made of a binder polymer, a carbon black and an inorganic material powder.

摘要翻译： 适用于计算机数据存储的磁记录带具有柔性聚合物网，通过非磁性底涂层布置在网的一个表面侧的磁记录层，以及布置在网的另一表面侧上的背涂层 ，其中所述磁记录带的厚度不大于8μm; 非磁性底涂层的厚度为0.5〜2.0μm; 磁记录层的厚度为0.5〜1.0μm; 聚合物纤维网在其宽度方向上具有不低于700kg / mm2的杨氏模块; 背涂层由粘合剂聚合物，炭黑和无机材料粉末制成。

公开(公告)号：US06916521B2

公开(公告)日：2005-07-12

申请号：US10021747

申请日：2001-12-13

申请人： Tadashi Ishiguro ,  Yutaka Kakuishi ,  Satoru Hayakawa ,  Minoru Sueki

发明人： Tadashi Ishiguro ,  Yutaka Kakuishi ,  Satoru Hayakawa ,  Minoru Sueki

IPC分类号： B32B27/40 ,  C08G18/08 ,  C08G18/66 ,  G11B5/41 ,  G11B23/03 ,  G11B23/04 ,  G11B23/50 ,  G11B5/733

CPC分类号： B32B27/40 ,  C08G18/0828 ,  C08G18/6607 ,  G11B5/41 ,  G11B23/0327 ,  G11B23/049 ,  G11B23/50 ,  Y10T428/24355 ,  Y10T428/24942 ,  Y10T428/25 ,  Y10T428/254 ,  Y10T428/27 ,  Y10T428/273 ,  Y10T428/277

摘要： A cleaning medium for a magnetic recording apparatus is disclosed, comprising a nonmagnetic support having provided thereon a lower coating layer mainly containing a nonmagnetic inorganic powder and a binder, and a cleaning layer containing at least a ferromagnetic inorganic powder and a binder provided on the lower coating layer, wherein the thickness of the cleaning layer is from 0.05 to 1.0 μm, the thickness of the lower coating layer is from 0.2 to 5.0 μm, the thickness of the support is from 2.0 to 10 μm, and the thickness in total of the cleaning medium (cleaning tape) is from 4.0 to 15 μm.

摘要翻译： 公开了一种用于磁记录装置的清洁介质，包括：非磁性载体，其上设置有主要包含非磁性无机粉末和粘合剂的下涂层，以及至少含有铁磁性无机粉末和粘合剂的清洗层， 涂层，其中清洁层的厚度为0.05-1.0μm，下涂层的厚度为0.2-5.0μm，载体的厚度为2.0-10μm，总厚度为 清洁介质（清洁带）为4.0〜15μm。

公开(公告)号：US20060289335A1

公开(公告)日：2006-12-28

申请号：US11453978

申请日：2006-06-16

申请人： Yutaka Kakuishi ,  Katsumi Ryoke ,  Katsuhiko Meguro

发明人： Yutaka Kakuishi ,  Katsumi Ryoke ,  Katsuhiko Meguro

IPC分类号： B65D79/00

CPC分类号： G11B5/84

摘要： A manufacturing method of a tape-form recoding medium in the present invention includes a raw web manufacturing process of forming a data recoding layer on one side of a substrate and a back coat layer having a minute convexity on the other side thereof, and thus manufacturing raw web of the tape-form recoding medium; a raw web winding process of winding the raw web with a predetermined tension; a raw web rewinding process of rewinding the raw web; and a raw web heating process of heating the rewound raw web.

摘要翻译： 本发明的带状记录介质的制造方法包括在基板的一面上形成数据记录层的原纸幅制造工序和在其另一面上具有微小凸起的背涂层，由此制造 带状记录介质的原始网页; 以预定张力卷绕原料纤维网的原料卷绕过程; 将卷筒纸重绕的原料卷筒纸卷绕过程; 以及加热回卷的原料网的原料网加热过程。

公开(公告)号：US5904979A

公开(公告)日：1999-05-18

申请号：US602567

申请日：1996-02-14

申请人： Yutaka Kakuishi ,  Kenichi Masuyama ,  Kiyomi Ejiri

发明人： Yutaka Kakuishi ,  Kenichi Masuyama ,  Kiyomi Ejiri

IPC分类号： G11B5/702 ,  C09D5/23 ,  G11B5/706 ,  G11B5/712 ,  G11B5/738

CPC分类号： G11B5/738 ,  G11B5/712 ,  Y10S428/90 ,  Y10S977/932 ,  Y10T428/265 ,  Y10T428/2991 ,  Y10T428/31935

摘要： (1) A magnetic recording system is disclosed, which comprises a thin-film magnetic head and a magnetic recording medium comprising a nonmagnetic support having thereon a magnetic layer comprising mainly ferromagnetic particles and a binder resin, wherein said binder resin comprising mainly a vinyl chloride resin, and said ferromagnetic particles are surface-treated with at least an organic compound. (2) Another magnetic recording system is disclosed, which comprises a thin-film magnetic head and a magnetic recording medium comprising a nonmagnetic support, a nonmagnetic layer comprising mainly inorganic nonmagnetic particles and a binder resin over the nonmagnetic support, and a magnetic layer comprising mainly ferromagnetic metal particles and a binder resin over the nonmagnetic layer, wherein said binder resins in said magnetic and nonmagnetic layers each comprises mainly a vinyl chloride resin, said ferromagnetic metal particles are surface-treated with at least an organic compound, and said magnetic layer has a thickness of from 0.05 to 1.0 .mu.m.

摘要翻译： （1）公开了一种磁记录系统，其包括薄膜磁头和磁记录介质，该磁记录介质包括其上具有主要包含铁磁颗粒和粘合剂树脂的磁性层的非磁性载体，其中所述粘合剂树脂主要包含氯乙烯 树脂，并且所述铁磁颗粒用至少一种有机化合物进行表面处理。 （2）公开了另一种磁记录系统，其包括薄膜磁头和包括非磁性载体的磁记录介质，主要包含无磁性非磁性颗粒的非磁性层和在非磁性载体上的粘合剂树脂，以及包括 主要是非磁性层上的铁磁金属颗粒和粘合剂树脂，其中所述磁性和非磁性层中的所述粘合剂树脂主要包含氯乙烯树脂，所述强磁性金属颗粒用至少一种有机化合物进行表面处理，并且所述磁性层 厚度为0.05〜1.0μm。

公开(公告)号：US5212019A

公开(公告)日：1993-05-18

申请号：US940733

申请日：1992-09-08

申请人： Katsumi Ryoke ,  Yutaka Kakuishi ,  Masaki Suzuki

发明人： Katsumi Ryoke ,  Yutaka Kakuishi ,  Masaki Suzuki

IPC分类号： G11B5/702 ,  G11B5/71

CPC分类号： G11B5/7028 ,  G11B5/71 ,  Y10S428/90

摘要： A magnetic recording medium in which the generation of white powder is suppressed, which recording medium maintains an appropriate running tension and exhibits a reduced level of dropouts and head clogging, comprising a non-magnetic support having thereon a magnetic layer, the magnetic layer containing a ferromagnetic powder and a binder, the ferromagnetic powder is a ferromagnetic metal powder and the magnetic layer contains a branched chain fatty acid represented by formula (I):R.sub.2 CH(CH.sub.2).sub.m COOH (I)wherein R represents CH.sub.3 (CH.sub.2).sub.n, n represents an integer of 8 or more, and m represents 0 or 1 in an amount of from 0.5 to 3 parts by weight per 100 parts by weight of said ferromagnetic metal powder.

摘要翻译： 其中抑制了白色粉末的产生的磁记录介质，该记录介质保持适当的运行张力并且表现出降低的压差和头部堵塞水平，包括其上具有磁性层的非磁性载体，该磁性层含有 铁磁粉末和粘合剂，铁磁性粉末是强磁性金属粉末，磁性层含有由式（I）表示的支链脂肪酸：R2CH（CH2）mCOOH（Ⅰ），其中R表示CH3（CH2）n，n表示 8个以上的整数，m表示0或1，相对于所述铁磁性金属粉末为100重量份，为0.5〜3重量份。

公开(公告)号：US5196265A

公开(公告)日：1993-03-23

申请号：US772748

申请日：1991-10-07

申请人： Katsumi Ryoke ,  Yutaka Kakuishi ,  Toshiyuki Kitahara

发明人： Katsumi Ryoke ,  Yutaka Kakuishi ,  Toshiyuki Kitahara

IPC分类号： C09D5/23 ,  C09D7/12 ,  G11B5/73

CPC分类号： G11B5/7305 ,  Y10S428/90 ,  Y10T428/12931 ,  Y10T428/12937 ,  Y10T428/26 ,  Y10T428/31786

摘要： A magnetic recording medium comprising a non-magnetic support having thereon a magnetic layer containing a ferromagnetic powder and a binder, the non-magnetic support comprising polyethylene naphthalate in which Young's modulus in the transversal direction is at least 700 kg/mm.sup.2 and Young's modulus in the mechanical direction is less than 800 kg/mm.sup.2, the ferromagnetic powder being magnetic metal powder, and the total thickness of the magnetic recording material being not more than 11 .mu.m.

摘要翻译： 一种磁记录介质，包括其上具有含有铁磁性粉末和粘合剂的磁性层的非磁性载体，所述非磁性载体包含聚萘二甲酸乙二醇酯，其中横向的杨氏模量为至少700kg / mm 2，杨氏模量为 机械方向小于800kg / mm2，铁磁粉末为磁性金属粉末，磁记录材料的总厚度不大于11μm。

公开(公告)号：US20070087170A1

公开(公告)日：2007-04-19

申请号：US11580914

申请日：2006-10-16

申请人： Kyouhisa Uchiumi ,  Yutaka Kakuishi ,  Shinichi Sugawara ,  Hideaki Yamada

发明人： Kyouhisa Uchiumi ,  Yutaka Kakuishi ,  Shinichi Sugawara ,  Hideaki Yamada

IPC分类号： B32B23/02

CPC分类号： G11B15/66 ,  G11B5/84 ,  Y10T428/24777

摘要： A manufacturing method of a tape for manufacturing a curved tape curving in the width direction along the longitudinal direction of the tape, wherein, in a cutting process which cuts an original tape with a wide width into a plurality of tapes with a predetermined width by continuously passing the original tape between a rotary blade and a rotary bed knife having a receiving portion for receiving the rotary blade, an edge which has a shorter edge length between both edges in the width direction of the tape is to become a cut side by being pushed into the receiving portion of the rotary bed knife.

摘要翻译： 一种用于制造沿带的纵向在宽度方向上弯曲的弯曲带的带的制造方法，其中，在将具有宽宽度的原始带以连续的方式切割成预定宽度的多个带的切割过程中 将原始带材转动在具有用于接收旋转刀片的接收部分的旋转刀片和旋转床刀之间，沿着带的宽度方向在两个边缘之间具有较短边缘长度的边缘通过被推动成为切割侧 进入旋转床刀的接收部分。

公开(公告)号：US06228461B1

公开(公告)日：2001-05-08

申请号：US09259290

申请日：1999-03-01

申请人： Minoru Sueki ,  Masatoshi Takahashi ,  Yutaka Kakuishi

发明人： Minoru Sueki ,  Masatoshi Takahashi ,  Yutaka Kakuishi

IPC分类号： G11B5735

CPC分类号： G11B5/7305 ,  G11B5/735 ,  Y10S428/90 ,  Y10T428/24 ,  Y10T428/24975 ,  Y10T428/25 ,  Y10T428/265 ,  Y10T428/31786

摘要： A magnetic recording tape favorably employable for recording computer data is composed of a support, and on one side of the support, a non-magnetic layer composed of a non-magnetic powder and a binder, and a magnetic recording layer composed of a ferromagnetic powder and a binder superposed in order, and on the other side, a back-coating layer containing carbon black, in which the magnetic recording tape has a lateral thermal expansion coefficient of not more than 0.0015%/° C., a lateral humidity expansion coefficient of not more than 0.0015%/% RH, a longitudinal offset proof stress of not less than 10 N, and a longitudinal breaking strength of not less than 30 N.

摘要翻译： 适用于记录计算机数据的磁记录带由支撑体构成，并且在支撑体的一侧由非磁性粉末和粘合剂组成的非磁性层和由铁磁性粉末组成的磁记录层 和粘合剂，其另一侧是含有炭黑的背涂层，其中磁记录带的横向热膨胀系数不大于0.0015％/℃，横向湿度膨胀系数 不大于0.0015％/％RH，纵向抗弯曲应力不小于10N，纵向断裂强度不小于30N。

公开(公告)号：US4844991A

公开(公告)日：1989-07-04

申请号：US38176

申请日：1987-04-14

申请人： Toshihiko Miura ,  Masaaki Fujiyama ,  Yutaka Kakuishi

发明人： Toshihiko Miura ,  Masaaki Fujiyama ,  Yutaka Kakuishi

IPC分类号： C09D5/23 ,  C09D7/12 ,  C10M105/24 ,  C10N40/18 ,  G11B5/72 ,  G11B5/725 ,  G11B5/84

CPC分类号： G11B5/72 ,  Y10S428/90

摘要： A magnetic recording medium comprising a nonmagnetic support, a magnetic recording layer provided on the support which comprises a binder and a ferromagnetic powder dispersed therein, and a monomolecular film or a built-up film provided on the magnetic recording layer. The monomolecular or built-up film comprises a saturated fatty acid having 10-24 carbon atoms and/or its alkali metal salt which is oriented vertically to the plane of the film. A process for the preparation of the same is also disclosed.

摘要翻译： 包括非磁性载体的磁记录介质，设置在载体上的磁记录层，其包含粘合剂和分散在其中的铁磁性粉末，以及设置在磁记录层上的单分子膜或积层膜。 单分子或叠层膜包含具有10-24个碳原子的饱和脂肪酸和/或其垂直于膜的平面取向的碱金属盐。 还公开了其制备方法。

公开(公告)号：US20090086369A1

公开(公告)日：2009-04-02

申请号：US12240450

申请日：2008-09-29

申请人： Junpei ISHIDA ,  Yutaka Kakuishi ,  Katsuhiko Meguro

发明人： Junpei ISHIDA ,  Yutaka Kakuishi ,  Katsuhiko Meguro

IPC分类号： G11B5/127 ,  G11B5/708 ,  G11B5/33

CPC分类号： G11B5/7305 ,  G11B5/70 ,  G11B5/82 ,  Y10T428/11

摘要： An aspect of the present invention relates to a magnetic recording medium comprising a magnetic layer comprising a ferromagnetic powder and a binder on one surface of a nonmagnetic support and a backcoat layer on the other surface of the nonmagnetic support, wherein a number of indentations equal to or greater than 20 nm in depth present on the magnetic layer surface is equal to or less than 100/10,000 μm2, a sol component ratio in the magnetic layer is equal to or less than 5.0 percent, and the support has an amount of heat absorption based on enthalpy relaxation ranging from 0.5 J/g to 2.0 J/g, and a glass transition temperature Tg ranging from 110° C. to 140° C. The present invention further relates to a method of reproducing magnetic signals and magnetic signal reproduction system in which the magnetic recording medium is employed.

摘要翻译： 本发明的一个方面涉及一种磁记录介质，其包括在非磁性载体的一个表面上包含铁磁性粉末和粘结剂的磁性层，以及在非磁性载体的另一个表面上的背涂层，其中等于 或大于20nm的深度存在于磁性层表面上的深度等于或小于100 / 10,000mum2，磁性层中的溶胶组分比等于或小于5.0％，并且载体具有一定量的吸热 基于0.5J / g至2.0J / g的焓弛豫和110℃至140℃的玻璃化转变温度Tg。本发明还涉及一种再现磁信号和磁信号再现系统的方法 其中采用磁记录介质。