公开(公告)号：US20060210839A1

公开(公告)日：2006-09-21

申请号：US11374061

申请日：2006-03-14

申请人： Tsutomu Ide ,  Katsuhiko Yamazaki ,  Tomoyuki Kotaki ,  Sadafumi Iijima

发明人： Tsutomu Ide ,  Katsuhiko Yamazaki ,  Tomoyuki Kotaki ,  Sadafumi Iijima

IPC分类号： G11B5/716

CPC分类号： G11B5/7013 ,  G11B5/73

摘要： A magnetic recording medium which makes it possible to further increase the recording capacity while maintaining a required flexibility thereof. A magnetic tape has a lower non-magnetic layer and a magnetic layer formed on one surface of a base film in the mentioned order. The lower non-magnetic layer is formed of a non-magnetic coating material containing a non-magnetic powder, an electron beam curing binder, a dispersant having an amine group, and a thermosetting agent.

摘要翻译： 一种磁记录介质，其可以进一步提高记录容量，同时保持其所需的柔性。 磁带具有较低的非磁性层和以所述顺序形成在基膜的一个表面上的磁性层。 下部非磁性层由含有非磁性粉末，电子束固化粘合剂，具有胺基的分散剂和热固化剂的非磁性涂料形成。

公开(公告)号：US06855414B2

公开(公告)日：2005-02-15

申请号：US10629766

申请日：2003-07-30

申请人： Tsutomu Ide ,  Katsuhiko Yamazaki

发明人： Tsutomu Ide ,  Katsuhiko Yamazaki

IPC分类号： G11B5/735

CPC分类号： G11B5/735 ,  Y10T428/257

摘要： A magnetic recording medium comprises a back coat layer containing carbon black and alumina as non-magnetic powder. The relationship between the abrasivity (y) in microns of the back coat layer and the alumina content (x) parts by weight to 100 parts by weight of non-magnetic powder excluding alumina satisfies four equations y≦4.6x+12.2, y≧4.1x+10.8, y≧13, y≦17. The abrasivity is measured such that an edge of a prismatic Sendust bar is pushed perpendiculary onto the back coat layer such that the magnetic recording medium is pressed at an approaching angle of 12 degree, and the magnetic recording medium is supported by a tension of 0.526 N/cm per unit width and a 50-m length thereof is moved back and forth one time over the Sendust bar at a running speed of 0.3 m/s.

摘要翻译： 磁记录介质包括含有炭黑和氧化铝作为非磁性粉末的背涂层。 背涂层的研磨性（y）与氧化铝含量（x）重量份之间的关系与100重量份除氧化铝之外的非磁性粉末的关系满足四个等式y <= 4.6x + 12.2，y> = 4.1x + 10.8，y> = 13，y <= 17。 测量磨损性，使得棱柱形塞浦路斯棒的边缘被垂直地推到背涂层上，使得磁记录介质以接近的角度12度被压制，并且磁记录介质由0.526N的张力支撑 / cm，长度为50μm的长度在0.3m / s的运行速度下在Sendust杆上前后移动一次。

公开(公告)号：US5599264A

公开(公告)日：1997-02-04

申请号：US415470

申请日：1995-04-03

申请人： Yuji Hashimoto ,  Takaaki Toyooka ,  Susumu Itatani ,  Tsutomu Ide

发明人： Yuji Hashimoto ,  Takaaki Toyooka ,  Susumu Itatani ,  Tsutomu Ide

IPC分类号： B21B27/02 ,  B21C37/08 ,  B21C37/083 ,  B21D5/12

CPC分类号： B21C37/08 ,  B21C37/083 ,  B21D5/12 ,  B21B27/028

摘要： A roller width adjusting device for a divided molding roller has a hollow main shaft journalled at each end to side bearings so as to be rotatable around a rotary axis thereof. The hollow main shaft is connected at one end to a driving source for rotating the main shaft around the rotary axis. A pair of hollow cylindrical roller holders are disposed on an outer periphery of intermediate portions of the main shaft so as to be slidable along the rotary axis of the main shaft. The roller holders may be fixed in any position along the rotary axis by a holding device. A pair of divided type molding rollers are attached to the roller holders, respectively. An adjusting shaft is rotatably disposed in the hollow shaft along its rotary axis. Each end of the adjusting shaft has a screw thread with opposed screw directions. One end of the adjusting shaft has a rotatable handle. By rotating the handle in one direction the interval between divided rollers is increased thus moving the roller holders farther apart; whereas by rotating the handle in the other direction the interval is decreased thus drawing the roller holders closer together. Once in position, the divided rollers are slidably fixed by the holding device such that pipe of that particular size can be manufactured.

摘要翻译： 用于分割成形辊的辊宽度调节装置具有中空主轴，其在每个端部与侧面轴承支承，以便能够围绕其旋转轴线旋转。 中空主轴在一端连接到用于使主轴绕旋转轴线旋转的驱动源。 一对中空的圆柱滚子保持器设置在主轴的中间部分的外周上，以便能够沿着主轴的旋转轴线滑动。 辊保持器可以通过保持装置沿着旋转轴线固定在任何位置。 一对分割型成型辊分别安装在滚子支架上。 调节轴沿其旋转轴线可旋转地设置在中空轴中。 调节轴的每一端都有一个螺纹相对的螺纹方向。 调节轴的一端具有可旋转的手柄。 通过在一个方向上旋转手柄，分离的辊之间的间隔增加，从而使辊保持器更远离; 而通过沿另一方向旋转手柄，间隔减小，从而将辊保持器更靠近在一起。 一旦就位，分离的辊由保持装置可滑动地固定，使得可以制造具有特定尺寸的管。

公开(公告)号：US5411793A

公开(公告)日：1995-05-02

申请号：US13215

申请日：1993-02-01

申请人： Tsutomu Ide ,  Suguru Hamada ,  Masahiro Kawai

发明人： Tsutomu Ide ,  Suguru Hamada ,  Masahiro Kawai

IPC分类号： C04B28/18 ,  D21H13/40 ,  D21H13/50 ,  D21H17/35 ,  D21H17/37 ,  D21H17/68 ,  D21H27/30 ,  B32B7/02

CPC分类号： C04B28/188 ,  C04B14/043 ,  C04B20/1029 ,  C04B28/18 ,  D21H27/30 ,  C04B2103/008 ,  C04B2111/00612 ,  C04B2111/28 ,  D21H13/40 ,  D21H13/50 ,  D21H17/35 ,  D21H17/37 ,  D21H17/68 ,  Y02W30/97 ,  Y10S428/92 ,  Y10S428/921 ,  Y10T428/24967 ,  Y10T428/259 ,  Y10T428/26

摘要： A board of calcium silicate crystals, characterized in that the board is composed of a plurality of layers of laminated thin sheets, each of the thin sheets having a thickness of 2 mm or less, each layer comprising secondary particles of calcium silicate crystals, a fibrous material, a coagulant and preferably additionally a polymer adsorbed on the surface of the secondary particles of calcium silicate; wherein each layer contains secondary calcium silicate particles interconnected with one another, and wherein the superposed thin sheets are firmly united with one another into an integral body by the interlayer interconnection of secondary particles of calcium silicate crystals present on the surface of the sheets.

摘要翻译： 一种硅酸钙晶体板，其特征在于，所述板由多层层叠薄板构成，每片薄片的厚度为2mm以下，各层由硅酸钙晶体二次粒子，纤维状 材料，凝结剂，优选另外吸附在硅酸钙二次颗粒表面上的聚合物; 其中每个层包含彼此互相连接的次级硅酸钙颗粒，并且其中叠置的薄片通过在片材表面上存在的硅酸钙晶体的二次颗粒的层间互连而彼此牢固地结合成整体。

公开(公告)号：US07160481B2

公开(公告)日：2007-01-09

申请号：US10765139

申请日：2004-01-28

申请人： Katsuhiko Yamazaki ,  Tsutomu Ide ,  Hiroyuki Tanaka

发明人： Katsuhiko Yamazaki ,  Tsutomu Ide ,  Hiroyuki Tanaka

IPC分类号： G11B5/842

CPC分类号： G11B5/714 ,  G11B5/842 ,  H01F1/0027 ,  H01F1/44 ,  H01F41/16

摘要： A method for manufacturing magnetic paint is provided, wherein a dispersion condition is appropriately controlled to excellently disperse a magnetic powder composed of fine particles adaptable for a higher recording density, so that magnetic paint having excellent dispersibility can be prepared, and a magnetic recording medium having excellent surface roughness is provided. The magnetic paint is prepared by the step of subjecting a mixed solution containing at least a binder, a solvent, and a magnetic powder to a dispersion treatment with a dispersion device by the use of dispersion media through at least dispersion step, wherein the dispersion in the main dispersion step is carried out by the use of dispersion media having an average particle diameter y (mm) satisfying the relationship, which is represented by formula y≦0.01x, with the average maximum diameter x (nm) of the magnetic powder.

摘要翻译： 提供一种制造磁性涂料的方法，其中适当地控制分散条件，以使由适合于较高记录密度的微粒组成的磁性粉末非常好地分散，从而可以制备具有优异分散性的磁性涂料，以及具有 提供优异的表面粗糙度。 该磁性涂料是通过至少分散步骤，通过使用分散介质使至少含有粘合剂，溶剂和磁性粉末的混合溶液用分散装置进行分散处理的步骤来制备的，其中分散体 主分散步骤通过使用平均粒径y（mm）的分散介质进行，该分散介质满足由公式y <= 0.01x表示的关系，其中磁粉的平均最大直径x（nm） 。

公开(公告)号：US20060124887A1

公开(公告)日：2006-06-15

申请号：US11346320

申请日：2006-02-03

申请人： Katsuhiko Yamazaki ,  Tsutomu Ide

发明人： Katsuhiko Yamazaki ,  Tsutomu Ide

IPC分类号： H01F1/00

CPC分类号： C09D5/36 ,  C08J3/212 ,  G11B5/70 ,  G11B5/738

摘要： A method for manufacturing magnetic paint or non-magnetic paint, which can produce a magnetic recording medium having excellent surface smoothness by appropriately setting the condition of a dispersion process for improving the dispersibility of the paint, and a magnetic recording medium are provided. The magnetic paint or the non-magnetic paint is produced by performing a dispersion process of a mixed solution, in which a magnetic powder or a non-magnetic powder is mixed into a binder solution containing a binder and a solvent, with a medium dispersion device. The method includes the steps of adjusting the viscosity of the mixed solution to 1,500 cP or less on a BL type viscometer at 20 rpm basis, and performing a dispersion process with the medium dispersion device using dispersion media having an average particle diameter of 0.5 mm or less at a dispersion circumferential speed of 8 to 15 m/s.

摘要翻译： 提供一种制造磁性涂料或非磁性涂料的方法，其可以通过适当地设定用于改善涂料分散性的分散方法的条件和磁记录介质来制备具有优异表面光滑度的磁记录介质。 磁性涂料或非磁性涂料是通过将磁性粉末或非磁性粉末混合到含有粘合剂和溶剂的粘合剂溶液中的混合溶液的分散方法与中等分散装置 。 该方法包括在BL型粘度计上以20rpm为基准将混合溶液的粘度调节至1,500cP以下的步骤，并使用平均粒径为0.5mm的分散介质和介质分散装置进行分散处理，或 较少的分散圆周速度为8至15m / s。

公开(公告)号：US06475613B1

公开(公告)日：2002-11-05

申请号：US09556313

申请日：2000-04-24

申请人： Tsutomu Ide ,  Akira Saitoh

发明人： Tsutomu Ide ,  Akira Saitoh

IPC分类号： G11B5735

CPC分类号： G11B5/735 ,  Y10S428/90 ,  Y10T428/25 ,  Y10T428/256 ,  Y10T428/258

摘要： The invention provides a magnetic recording medium which is reduced in the occurrence of a dropout and has excellent durability. The magnetic recording medium comprises a magnetic layer on one surface of a non-magnetic support and a back-coat layer, containing mainly a non-magnetic powder and a binder, on the other surface. The back-coat layer includes (a) a carbon black having an average particle size of 15 to 25 nm, (b) a carbon black having an average particle size of 60 to 80 nm and (c) CaCO3 and/or BaSO4 having an average particle size of 30 to 75 nm as the non-magnetic powder. The back-coat layer preferably includes said carbon black (a), said carbon black (b) and said CaCO3 and/or BaSO4 (c) in a ratio of (a)/(b)/(c)=60-80/3-15/15-30 by weight.

摘要翻译： 本发明提供一种磁记录介质，其减少了出现的脱落并且具有优异的耐久性。磁记录介质包括在非磁性载体的一个表面上的磁性层和主要包含非磁性载体的背涂层， 磁性粉末和粘合剂，在另一个表面上。 背涂层包括（a）平均粒径为15〜25nm的炭黑，（b）平均粒径为60〜80nm的炭黑，（c）CaCO 3和/或BaSO 4具有 作为非磁性粉末的平均粒径为30〜75nm。 背涂层优选包含所述炭黑（a），所述炭黑（b）和所述CaCO 3和/或BaSO 4（c）的比例为（a）/（b）/（c）= 60-80 / 3-15 / 15-30（重量）。

公开(公告)号：US20080241600A1

公开(公告)日：2008-10-02

申请号：US12056568

申请日：2008-03-27

申请人： Hiroyuki Tanaka ,  Tsutomu Ide ,  Osamu Inoue

发明人： Hiroyuki Tanaka ,  Tsutomu Ide ,  Osamu Inoue

IPC分类号： G11B5/66 ,  B05D5/12

CPC分类号： G11B5/73 ,  G11B5/7026

摘要： The present invention provides a magnetic recording medium wherein a fine non-magnetic inorganic powder, the dispersibility of which is improved, is used to improve the surface smoothness of a lower non-magnetic layer, thereby giving an excellent surface smoothness of an upper magnetic layer and electromagnetic conversion property; and a production process thereof. A magnetic recording medium comprising at least a non-magnetic support, a lower non-magnetic layer on one surface of the non-magnetic support, and an upper magnetic layer on the lower non-magnetic layer, wherein the upper magnetic layer contains at least a ferromagnetic powder, and a binder resin material, and the lower non-magnetic layer contains at least carbon black, iron oxide, and a binder resin material, and the iron oxide has an average major axis length of 30 to 100 nm, and a specific surface area based on the BET method of 80 to 120 m2/g, and the iron oxide contains moisture in an amount per unit specific surface area of 0.13 to 0.25 mg/m2.

摘要翻译： 本发明提供了一种磁记录介质，其中改善了其分散性的细非磁性无机粉末用于改善下部非磁性层的表面平滑度，从而赋予上层磁性层优异的表面平滑度 和电磁转换特性; 及其制造方法。 至少包括非磁性载体，非磁性载体的一个表面上的下部非磁性层和下部非磁性层上的上磁性层的磁记录介质，其中上部磁性层至少含有 铁磁粉末和粘结剂树脂材料，下部非磁性层至少含有炭黑，氧化铁和粘合剂树脂材料，氧化铁的平均长轴长度为30〜100nm， 基于BET法的比表面积为80〜120m 2 / g，氧化铁含有每单位比表面积为0.13〜0.25mg / m 2的水分， / SUP>。

公开(公告)号：US07425378B2

公开(公告)日：2008-09-16

申请号：US10898232

申请日：2004-07-26

申请人： Katsuhiko Yamazaki ,  Tsutomu Ide ,  Takashi Handa ,  Akinori Nishizawa

发明人： Katsuhiko Yamazaki ,  Tsutomu Ide ,  Takashi Handa ,  Akinori Nishizawa

IPC分类号： G11B5/66

CPC分类号： G11B5/738

摘要： The present invention provides a magnetic recording medium which has a thin film magnetic layer considerably excellent in surface smoothness, and is excellent in electromagnetic conversion property. A magnetic recording medium comprising a non-magnetic support, a lower non-magnetic layer comprising at least a non-magnetic powder and a binder resin on one surface of the non-magnetic support, and a magnetic layer comprising at least a ferromagnetic powder and a binder resin on the lower non-magnetic layer, wherein when the magnetic recording medium is subjected to extraction treatment with water, 7 to 23 μg of PO43− ions are extracted per 10 mm3 of the volume of the lower non-magnetic layer of the magnetic recording medium. A magnetic recording medium comprising a non-magnetic support, a lower non-magnetic layer comprising at least a non-magnetic powder and a binder resin on one surface of the non-magnetic support, and a magnetic layer comprising at least a ferromagnetic powder and a binder resin on the lower non-magnetic layer, wherein when the magnetic recording medium is subjected to extraction treatment with water, 8 to 22 μg of Mg2+ ions are extracted per 10 mm3 of the volume of the lower non-magnetic layer of the magnetic recording medium.

摘要翻译： 本发明提供一种具有表面平滑性优异的薄膜磁性层的磁记录介质，并且电磁转换特性优异。 一种磁记录介质，包括非磁性载体，在非磁性载体的一个表面上至少包含非磁性粉末和粘合剂树脂的下部非磁性层，以及至少包含铁磁性粉末和 在下部非磁性层上的粘合剂树脂，其中当磁记录介质用水进行萃取处理时，7至23杯PO 3 - 3 - 提取每10毫米3磁记录介质的下非磁性层的体积。 一种磁记录介质，包括非磁性载体，在非磁性载体的一个表面上至少包含非磁性粉末和粘合剂树脂的下部非磁性层，以及至少包含铁磁性粉末和 在下部非磁性层上的粘合剂树脂，其中当磁记录介质用水进行萃取处理时，每10 mm 3提取8至22杯Mg 2+离子 磁记录介质的下非磁性层的体积。

公开(公告)号：US5784911A

公开(公告)日：1998-07-28

申请号：US803923

申请日：1997-02-21

申请人： Yuji Hashimoto ,  Takaaki Toyooka ,  Motoaki Itatani ,  Susumu Itatani ,  Tsutomu Ide

发明人： Yuji Hashimoto ,  Takaaki Toyooka ,  Motoaki Itatani ,  Susumu Itatani ,  Tsutomu Ide

IPC分类号： B21C37/08 ,  B21D5/08 ,  B21D39/02 ,  B21D51/28

CPC分类号： B21C37/0822 ,  B21D5/086

摘要： An apparatus for manufacturing a welded pipe. The apparatus includes a cage or cluster roller molding system. In either case, a rotary axis of each roller is slanted counterclockwise or clockwise with respect to a manufacturing line direction of the apparatus. The adjustable positioning of the rotary axis reduces vertical slip caused when the strip of material passes along the contact surface of the roller.

摘要翻译： 一种用于制造焊接管的设备。 该装置包括笼或群辊成型系统。 在任一情况下，每个辊的旋转轴相对于装置的制造线方向逆时针或顺时针倾斜。 旋转轴的可调节定位减少了当材料条沿着辊的接触表面通过时产生的垂直滑动。