公开(公告)号：US5958565A

公开(公告)日：1999-09-28

申请号：US848596

申请日：1997-04-28

申请人： Yasushi Hattori ,  Akira Kasuga ,  Toshio Kawamata ,  Tatsuo Ishikawa ,  Satoru Hayakawa

发明人： Yasushi Hattori ,  Akira Kasuga ,  Toshio Kawamata ,  Tatsuo Ishikawa ,  Satoru Hayakawa

IPC分类号： G11B5/70 ,  G11B5/73 ,  G11B5/733 ,  G11B5/735

CPC分类号： G11B5/7305 ,  G11B5/70 ,  G11B5/733 ,  G11B5/735 ,  Y10S428/90 ,  Y10T428/24975 ,  Y10T428/25 ,  Y10T428/258 ,  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, and a backing layer arranged on another surface side of the web, characterized in that the recording tape has a thickness of 2 to 8 .mu.m and shows a Young's modulus of not less than 1,200 kg/mm.sup.2 in its longitudinal direction; and the backing layer has a thickness of 0.2 to 1 .mu.m and is composed of a binder, a carbon black, a non-magnetic powder I having Mohs' scale of hardness of 3 to 4.5 and another non-magnetic powder II having Mohs' scale of hardness of 5 to 9. Between the magnetic layer and the flexible polymer web, a non-magnetic undercoating layer composed of a binder and a non-magnetic powder can be provided.

摘要翻译： 有利地用于计算机数据存储的磁记录带具有柔性聚合物网，布置在网的一个表面侧的磁记录层和布置在网的另一表面侧上的背衬层，其特征在于记录带具有 厚度为2〜8μm，纵向杨氏模量为1200kg / mm2以上。 背衬层的厚度为0.2〜1μm，由粘合剂，炭黑，莫氏硬度为3〜4.5的非磁性粉末I和具有Mohs' 在硬磁性层和柔性聚合物网之间，可以提供由粘合剂和非磁性粉末组成的非磁性底涂层。

公开(公告)号：US06338896B1

公开(公告)日：2002-01-15

申请号：US09280004

申请日：1999-03-29

申请人： Katsuhiko Meguro ,  Tatsuo Ishikawa ,  Hiroshi Hashimoto

发明人： Katsuhiko Meguro ,  Tatsuo Ishikawa ,  Hiroshi Hashimoto

IPC分类号： G11B5738

CPC分类号： G11B5/7305 ,  G11B5/738 ,  Y10S428/90 ,  Y10T428/25 ,  Y10T428/265 ,  Y10T428/31728

摘要： The present invention provides a magnetic recording medium, which comprises a magnetic layer having ferromagnetic powder dispersed in a binder on a non-magnetic support member, wherein the non-magnetic support member is made of aromatic polyamide, an undercoating layer is provided between said non-magnetic support member and a lower non-magnetic layer, or between the non-magnetic support member and the magnetic layer, said undercoating layer comprising polyamide resin having tertiary amino group and containing repeated structural units expressed by the following formulae (1) and (2).

摘要翻译： 本发明提供一种磁记录介质，其包括在非磁性支撑构件上分散有粘结剂的铁磁性粉末的磁性层，其中所述非磁性支撑构件由芳香族聚酰胺制成，底涂层设置在所述非磁性支撑构件之间， 磁性支撑构件和下部非磁性层，或者在非磁性支撑构件和磁性层之间，所述底涂层包含具有叔氨基的聚酰胺树脂，并且包含由下式（1）和（ 2）。

公开(公告)号：US4774012A

公开(公告)日：1988-09-27

申请号：US3624

申请日：1987-01-15

申请人： Tatsuo Ishikawa ,  Kazutaka Fujii ,  Kenichi Sasaki ,  Mitsuo Suzuki

发明人： Tatsuo Ishikawa ,  Kazutaka Fujii ,  Kenichi Sasaki ,  Mitsuo Suzuki

IPC分类号： G11B5/706 ,  G11B5/714 ,  C04B35/26

CPC分类号： G11B5/70652 ,  G11B5/714

摘要： A cobalt-containing ferromagnetic iron oxide powder of which constituent particles each is an aggregate of cobalt-containing ferromagnetic iron oxide micorparticles and has a spherical shape of 5 to 200 .mu.m in diameter has an angle of repose of 35.degree. or smaller and accordingly excellent flowability, as well as to a process for producing the iron oxide powder, are provided. This ferromagnetic iron oxide powder consisting of spherically shaped particles, are easily dispersed in an organic binder to return to the original state of microparticles, and provide improved magnetic characteristics when used as a material for magnetic recording media such as a magnetic tape and the like.

摘要翻译： 其中构成颗粒各自是含钴铁磁性氧化铁微粒的骨料并且具有直径为5至200μm的球形的含钴铁磁性氧化铁粉末的休止角为35°或更小，因此优异 提供流动性以及生产氧化铁粉末的方法。 这种由球形颗粒组成的铁磁性氧化铁粉末容易地分散在有机粘合剂中以返回到微粒的初始状态，并且当用作诸如磁带等的磁记录介质的材料时，提供改进的磁特性。

公开(公告)号：US4679576A

公开(公告)日：1987-07-14

申请号：US743963

申请日：1985-06-12

申请人： Yukitomo Yuhara ,  Sumio Okojima ,  Tatsuo Ishikawa

发明人： Yukitomo Yuhara ,  Sumio Okojima ,  Tatsuo Ishikawa

IPC分类号： A45C13/10 ,  A45D33/00

CPC分类号： A45C13/1084

摘要： A vanity case includes a receptacle and a cover hinged with each other at rear ends thereof, the cover being maintained in a closed position by engagement between latch tongues formed on the receptacle and the cover. The receptacle is formed at the front end with a recess within which is slidably disposed a push piece having a front wall and an arm integrally formed with the front wall through a thin flexible section which permits the arm to tilt relative to the front wall. The upper end of the arm is positioned closely adjacent the lower surface of the cover, and the rear end of the arm abuts against the inner wall defining the recess and, upon rearward movement of the push piece, slides on the inner wall upwardly to tilt the arm whereby the upper end of the arm forces the cover in upward and forward directions to release the engagement of the latch tongues.

摘要翻译： 梳妆盒包括插座和在其后端彼此铰接的盖子，通过在插座上形成的闩舌与盖子之间的接合将盖子保持在关闭位置。 容器在前端形成有凹部，在该凹部内可滑动地设置有推动件，该推动件具有通过允许臂相对于前壁倾斜的薄柔性部分与前壁一体地形成的前壁和臂。 臂的上端定位成紧邻盖的下表面，并且臂的后端抵靠限定凹部的内壁，并且在推动件的向后移动时，在内壁上向上滑动以倾斜 由此臂的上端将盖向上和向前的方向推动以释放闩锁舌的接合。

公开(公告)号：USRE31601E

公开(公告)日：1984-06-12

申请号：US245777

申请日：1981-03-20

申请人： Masataka Ikeda ,  Tatsuo Ishikawa ,  Tsukasa Shima

发明人： Masataka Ikeda ,  Tatsuo Ishikawa ,  Tsukasa Shima

IPC分类号： D04H1/46 ,  D04H13/00

CPC分类号： D04H1/49 ,  D04H1/4382 ,  D04H1/492 ,  D04H1/498 ,  D06N3/00 ,  Y10S428/903 ,  Y10S428/904 ,  Y10T428/23964 ,  Y10T428/23986 ,  Y10T442/3772 ,  Y10T442/378 ,  Y10T442/3789 ,  Y10T442/3805 ,  Y10T442/494

摘要： The disclosed composite fabric, useful as a substratum for artificial leather, comprises a woven or knitted frabic and at least one non-woven fabric firmly bonded to the woven or knitted fabric, and is produced by providing a precursory sheet with two or more layers from a woven or knitted fabric and one or more fibrous webs which consist of numerous extremely fine fibers having an average diameter of from 0.1 to 6.0 microns, and uniformly impacting the fibrous web surface of the precursory sheet with numerous fluid jets ejected under a high pressure of from 15 to 100 kg/cm.sup.2, at a ratio of a total impact area of the fluid jets on the precursory sheet surface to an area of the precursory sheet surface to be impacted of at least 1.5, in order to allow the extremely fine fibers in the fibrous web to randomly entangle with each other and also to allow a portion of the extremely fine fibers to penetrate into the inside of the woven or knitted fabric and entangle with a portion of the fibers in the woven or knitted fabric.

公开(公告)号：US07349182B2

公开(公告)日：2008-03-25

申请号：US11049877

申请日：2005-02-04

申请人： Mikio Ohno ,  Tomohiro Ichikawa ,  Tatsuo Ishikawa

发明人： Mikio Ohno ,  Tomohiro Ichikawa ,  Tatsuo Ishikawa

IPC分类号： G11B5/78

CPC分类号： G11B5/73

摘要： A magnetic recording medium for being used in a write/read system in which a difference of track width between write track width and read track width is smaller than 10 μm, which comprises: a magnetic layer containing ferromagnetic powder and a binder; a nonmagnetic support; and a backcoating layer, in this order, at least one of the magnetic layer and the backcoating layer having servo signals for tracking control pre-recorded therein, wherein the nonmagnetic support is a film of a polyester having an intrinsic viscosity of 0.40 to 0.60 dl/g and a number average molecular weight of 12000 to 24000.

摘要翻译： 一种用于写入/读取系统的磁记录介质，其中写入磁道宽度和读取磁道宽度之间的磁道宽度的差小于10um，其包括：包含铁磁性粉末和粘合剂的磁性层; 非磁性支撑; 和背涂层，其中磁性层和背涂层中的至少一个具有用于在其中预先记录的跟踪控制的伺服信号，其中非磁性载体是特性粘度为0.40至0.60dl的聚酯膜 / g，数均分子量为12000〜24000。

公开(公告)号：US06991862B2

公开(公告)日：2006-01-31

申请号：US10810830

申请日：2004-03-29

申请人： Mikio Ohno ,  Tatsuo Ishikawa

发明人： Mikio Ohno ,  Tatsuo Ishikawa

IPC分类号： G11B5/702

CPC分类号： G11B5/7021 ,  G11B5/70 ,  G11B5/714

摘要： In one aspect, the magnetic recording medium comprises a magnetic layer comprising a ferromagnetic powder and a binder and said binder comprises polyurethane resin having a glass transition temperature of 100 to 200° C. In a second aspect, the magnetic recording medium comprises a nonmagnetic layer comprising a nonmagnetic powder and a binder and a magnetic layer comprising a ferromagnetic powder and a binder in this order on a nonmagnetic support and at least the binder comprised in said magnetic layer comprises polyurethane resin having a glass transition temperature of 100 to 200° C. In both aspects, said magnetic layer has a thickness equal to or less than 0.15 μm, said ferromagnetic powder has a mean major axis length or a mean plate diameter of 60 nm or less, and said magnetic layer has a coercivity of 159 to 239 kA/m in a longitudinal or in-plane direction.

摘要翻译： 一方面，磁记录介质包括含有铁磁粉末和粘合剂的磁性层，所述粘合剂包含玻璃化转变温度为100-200℃的聚氨酯树脂。在第二方面，磁记录介质包括非磁性层 在非磁性载体上依次包含非磁性粉末和粘合剂以及包含铁磁粉末和粘合剂的磁性层，并且至少包含在所述磁性层中的粘合剂包含玻璃化转变温度为100-200℃的聚氨酯树脂。 在两个方面，所述磁性层具有等于或小于0.15μm的厚度，所述铁磁粉末具有平均长轴长度或60nm或更小的平均板直径，并且所述磁性层的矫顽力为159至239kA / m的纵向或平面方向。

公开(公告)号：US06346310B1

公开(公告)日：2002-02-12

申请号：US09600833

申请日：2000-12-19

申请人： Koji Naoe ,  Tatsuo Ishikawa ,  Hiroaki Takano

发明人： Koji Naoe ,  Tatsuo Ishikawa ,  Hiroaki Takano

IPC分类号： G11B5735

CPC分类号： G11B5/735 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/25 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/265 ,  Y10T428/31609 ,  Y10T428/31721

摘要： Disclosed is a magnetic recording medium comprising a magnetic layer on a surface of a flexible support and a backcoat layer on the opposite surface, characterized in that the backcoat layer comprises a granulated oxide consisting of titanium oxide, &agr;-iron oxide or a mixture thereof and carbon black in the weight ratio ranging from 60/40 to 90/10, and further comprises a binder in an amount ranging from 10 to 40 parts by weight with respect to 100 parts by weight of the total amount of the granulated oxide and carbon black. The magnetic recording medium of the present invention is characterized in that both the running durability and electromagnetic characteristics are excellent.

摘要翻译： 公开了一种磁性记录介质，其包括在柔性载体的表面上的磁性层和相对表面上的背涂层，其特征在于，背涂层包含由氧化钛，α-氧化铁或其混合物组成的颗粒状氧化物，以及 炭黑，重量比为60/40至90/10，并且还包含相对于100重量份的颗粒状氧化物和炭黑的总量为10至40重量份的粘合剂 。 本发明的磁记录介质的特征在于运行耐久性和电磁特性均优异。

公开(公告)号：US4146663A

公开(公告)日：1979-03-27

申请号：US826007

申请日：1977-08-19

申请人： Masataka Ikeda ,  Tatsuo Ishikawa ,  Tsukasa Shima

发明人： Masataka Ikeda ,  Tatsuo Ishikawa ,  Tsukasa Shima

IPC分类号： D04H1/46 ,  D04H13/00 ,  D06N3/00

CPC分类号： D04H1/49 ,  D04H1/4382 ,  D04H1/492 ,  D04H1/498 ,  D06N3/00 ,  Y10S428/903 ,  Y10S428/904 ,  Y10T428/23964 ,  Y10T428/23986 ,  Y10T442/3772 ,  Y10T442/378 ,  Y10T442/3789 ,  Y10T442/3805 ,  Y10T442/494

摘要： The disclosed composite fabric, useful as a substratum for artificial leather, comprises a woven or knitted frabic and at least one non-woven fabric firmly bonded to the woven or knitted fabric, and is produced by providing a precursory sheet with two or more layers from a woven or knitted fabric and one or more fibrous webs which consist of numerous extremely fine fibers having an average diameter of from 0.1 to 6.0 microns, and uniformly impacting the fibrous web surface of the precursory sheet with numerous fluid jets ejected under a high pressure of from 15 to 100 kg/cm.sup.2, at a ratio of a total impact area of the fluid jets on the precursory sheet surface to an area of the precursory sheet surface to be impacted of at least 1.5, in order to allow the extremely fine fibers in the fibrous web to randomly entangle with each other and also to allow a portion of the extremely fine fibers to penetrate into the inside of the woven or knitted fabric and entangle with a portion of the fibers in the woven or knitted fabric.

公开(公告)号：US07381485B2

公开(公告)日：2008-06-03

申请号：US11049891

申请日：2005-02-04

申请人： Tatsuo Ishikawa ,  Mikio Ohno ,  Tomohiro Ichikawa

发明人： Tatsuo Ishikawa ,  Mikio Ohno ,  Tomohiro Ichikawa

IPC分类号： B32B5/04 ,  B32B5/716

CPC分类号： G11B5/70 ,  G11B5/7305 ,  G11B5/735 ,  Y10T428/31794

摘要： A magnetic recording tape comprising a nonmagnetic support and a magnetic layer containing ferromagnetic powder and a binder, wherein the nonmagnetic support has an intrinsic viscosity of from 0.40 to 0.60 dl/g and a number average molecular weight of from 12,000 to 24,000, and a distance between an apex of a maximum convexity and a valley of a maximum concavity of the nonmagnetic support on a cross section of an edge of the tape made by cutting the tape in a transverse direction is 2 μm or less in the transverse direction.

摘要翻译： 一种磁记录带，其包含非磁性载体和含有铁磁性粉末和粘合剂的磁性层，其中所述非磁性载体的特性粘度为0.40至0.60dl / g，数均分子量为12,000至24,000， 在通过沿横向方向切割带而制成的带的边缘的横截面上的非磁性载体的最大凹凸的顶点与最大凹部的谷之间的宽度在横向上为2μm或更小。