公开(公告)号：US08460806B2

公开(公告)日：2013-06-11

申请号：US12700912

申请日：2010-02-05

申请人： Tatsuo Ishikawa ,  Norihito Kasada

发明人： Tatsuo Ishikawa ,  Norihito Kasada

IPC分类号： G11B5/66

CPC分类号： G11B5/70 ,  G11B5/7305

摘要： A magnetic tape cartridge including a reel and a pack of magnetic tape wound onto the reel, the magnetic tape includes an aromatic polyamide support and has a thickness of from 3.5 to 5.5 μm and a length of 1000 m or more, and a difference in tape thickness produced between an outer and an inner winding of the tape pack after 2-week storage of the cartridge in a dry environment at 60° C. is 60 nm or smaller.

摘要翻译： 一种磁带盒，包括卷轴和卷绕在卷轴上的一组磁带，磁带包括芳族聚酰胺载体，其厚度为3.5-5.5μm，长度为1000μm以上，带的差异 在60℃的干燥环境下，盒的2周保存后，在带式包装的外圈和内圈之间产生的厚度为60nm以下。

公开(公告)号：US20050202289A1

公开(公告)日：2005-09-15

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： G11B5/73 ,  B32B5/16 ,  G11B5/68 ,  G11B5/70 ,  G11B5/735 ,  G11B5/738

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。

公开(公告)号：US20050175866A1

公开(公告)日：2005-08-11

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： G11B5/584 ,  G11B5/73 ,  G11B5/735 ,  G11B5/738 ,  G11B5/147

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：US20050170213A1

公开(公告)日：2005-08-04

申请号：US11042064

申请日：2005-01-26

申请人： Mikio Ohno ,  Tatsuo Ishikawa ,  Tomohiro Ichikawa

发明人： Mikio Ohno ,  Tatsuo Ishikawa ,  Tomohiro Ichikawa

IPC分类号： G11B5/64 ,  B32B27/36 ,  G11B5/70 ,  G11B5/73 ,  G11B5/733 ,  G11B5/735 ,  G11B5/738 ,  B32B1/00 ,  G11B5/68

CPC分类号： B32B27/36 ,  B32B27/14 ,  B32B2307/20 ,  B32B2307/538 ,  B32B2429/02 ,  G11B5/70 ,  G11B5/7305 ,  G11B5/733 ,  G11B5/735 ,  Y10T428/31786

摘要： A magnetic recording medium comprising: a magnetic layer containing ferromagnetic powder and a binder; a nonmagnetic support; and a back coat layer, in this order, wherein the nonmagnetic support contains polyester having 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, a surface of the magnetic layer on a side not having the nonmagnetic support has a surface roughness Ra of from 1 to 5 nm, and a surface of the back coat layer on a side not having the nonmagnetic support has a surface roughness Ra of from 6 to 20 nm.

摘要翻译： 一种磁记录介质，包括：含有铁磁粉末和粘合剂的磁性层; 非磁性支撑; 和背涂层，其中非磁性载体含有特性粘度为0.40至0.60dl / g，数均分子量为12,000至24,000的聚酯，磁性层的表面不在 具有非磁性载体的表面粗糙度Ra为1〜5nm，背面层的不具有非磁性载体的表面的表面粗糙度Ra为6〜20nm。

公开(公告)号：US06382448B1

公开(公告)日：2002-05-07

申请号：US09599834

申请日：2000-06-23

申请人： Yukitomo Yuhara ,  Takehisa Hibi ,  Tatsuo Ishikawa ,  Ichiro Kizawa

发明人： Yukitomo Yuhara ,  Takehisa Hibi ,  Tatsuo Ishikawa ,  Ichiro Kizawa

IPC分类号： B65D2514

CPC分类号： B65D25/14 ,  B29C45/14688 ,  B29C45/14811 ,  B29C51/00 ,  B29C2045/14237 ,  B29C2791/001 ,  B29K2715/006 ,  B29K2995/002 ,  B29L2031/3431 ,  B29L2031/3437 ,  H04M1/0202 ,  H04M1/0283 ,  H05K5/0017

摘要： A housing case for apparatus, which has both a display window and opaque ornamental layer on the surface of housing case, includes a transparent synthetic resin sheet. The synthetic resin sheet is provided with opaque printing layer in a pattern having unprinted portion corresponding to the display window. The synthetic resin sheet is formed into a shape of housing case. A formed product of transparent synthetic resin is insert-formed on the backside of the formed synthetic resin sheet. In the housing case, the forming of a ornamental pattern on the surface of housing case and a dispaly window can be made at the same time when forming a body of housing case(FIG. 1).

摘要翻译： 在壳体的表面上具有显示窗和不透明的装饰层的装置的外壳包括透明合成树脂片。 合成树脂片具有不透明的印刷层，其具有对应于显示窗的未打印部分的图案。 合成树脂片形成为壳体的形状。 在所形成的合成树脂片的背面嵌入形成透明合成树脂的成形品。 在壳体中，在形成壳体（图1）的同时，可以在壳体的表面上形成装饰图案和形成窗口。

公开(公告)号：US6129979A

公开(公告)日：2000-10-10

申请号：US140159

申请日：1998-08-26

申请人： Toshio Kawamata ,  Tatsuo Ishikawa

发明人： Toshio Kawamata ,  Tatsuo Ishikawa

IPC分类号： B05D7/24 ,  G11B5/702 ,  G11B5/708 ,  G11B5/714 ,  G11B5/73 ,  G11B5/735 ,  G11B5/738

CPC分类号： G11B5/735 ,  G11B5/7305 ,  G11B5/738 ,  G11B5/7022 ,  G11B5/708 ,  G11B5/714 ,  Y10S428/90 ,  Y10T428/24975 ,  Y10T428/256 ,  Y10T428/265 ,  Y10T428/31562 ,  Y10T428/31576 ,  Y10T428/31609 ,  Y10T428/31736 ,  Y10T428/31971

摘要： A magnetic recording medium composed of an aromatic polyamide support, a magnetic recording layer arranged on one surface side of the support, and a back-coating layer arranged on the other surface side of the support is improved in its running durability, by forming the back-coating layer from solid particles and a binder in amounts of the range of 8/10 to 20/10, and further by placing a subbing layer of polyester resin or polyurethane resin having a Tg of 40.degree. C.-80.degree. C. and a polar group such as --SO.sub.3 M, --OSO.sub.3 M, --COOM and --OPO.sub.3 MM.sup.1 (each of M and M.sup.1 is hydrogen, an alkaline metal ion or an ammonium ion) between the support and the back-coating layer.

摘要翻译： 由芳族聚酰胺载体，布置在载体的一个表面侧的磁记录层和布置在载体的另一个表面侧上的背涂层组成的磁记录介质通过形成背面而提高其运行耐久性 涂布层，其量为8/10〜20/10的固体颗粒和粘合剂，并且进一步通过将Tg为40℃-80℃的聚酯树脂或聚氨酯树脂的底层和 载体和背涂层之间的极性基团如-SO3M，-OSO3M，-COOM和-OPO3MM1（M和M1各自为氢，碱金属离子或铵离子）。

公开(公告)号：US4820149A

公开(公告)日：1989-04-11

申请号：US129181

申请日：1987-12-07

申请人： Yoshiharu Hatakeyama ,  Tatsuo Ishikawa

发明人： Yoshiharu Hatakeyama ,  Tatsuo Ishikawa

IPC分类号： B29C45/26 ,  B29C45/56 ,  B29C45/30

CPC分类号： B29C45/2669 ,  B29C45/56 ,  B29C2045/569 ,  B29C33/20

摘要： An apparatus for injection molding a product having a partly thin portion includes a molding die including a male die and a female die for defining a cavity having a volume larger than a volume of the product. A gate is provided to permit molten resin material from an injection molding machine to be injected into the cavity. A slide block disposed in either the male die or the female die has in cross section a dimension corresponding to a dimension of the thin portion of the product. The slide block is movable between a retracted position where the volume of the cavity is substantially maintained and an advanced position to project into the cavity to form the thin portion. A drive is provided for moving the slide block to the advanced position before the resin material injected into the cavity is solidified. A hollow space formed in the molding die and communicating with the cavity permits an excess of the resin material to be discharged from the cavity into the hollow space during the advance of the slide block. A closure member is fitted in the hollow space for normally closing the same and is coupled to a spring for urging the closure member to the retracted position and a power drive unit for maintaining the closure member in the advanced position against the spring. The closure member is moved in synchronism with the slide block drive so that the closure member is retracted to open the hollow space substantially simultaneously with the advance of the slide block, and is advanced to reduce the volume of the hollow space immediately after the slide block reaches the advanced position. This synchronous drive supplements any shrinkage of the resin during subsequent cooling thereby preventing any occurrence of sink marks in the resulting product.

摘要翻译： 一种用于注射成型具有部分薄部分的产品的设备包括：模具，其包括阳模和阴模，用于限定体积大于产品体积的空腔。 提供了一个浇口以允许来自注射成型机的熔融树脂材料被注入腔中。 设置在阳模或阴模中的滑块的横截面具有与产品的薄部分的尺寸相对应的尺寸。 滑动块可以在空腔的体积基本保持的缩回位置和突出到空腔中的前进位置之间移动以形成薄部分。 提供驱动器，用于在将注入到腔体中的树脂材料固化之前将滑块移动到前进位置。 形成在成型模具中并与空腔连通的中空空间允许在滑块的前进期间，过量的树脂材料从空腔排出到中空空间中。 封闭构件安装在中空空间中，用于通常关闭它，并且联接到用于将闭合构件推动到缩回位置的弹簧和用于将封闭构件保持在弹簧的前进位置的动力驱动单元。 闭合构件与滑动块驱动器同步地移动，使得闭合构件缩回以与滑块的前进基本同时地打开中空空间，并且前进以在滑块之后立即减小中空空间的体积 达到先进地位。 该同步驱动器在随后的冷却期间补充树脂的任何收缩，从而防止在所得产品中出现凹痕。

公开(公告)号：US4682305A

公开(公告)日：1987-07-21

申请号：US654955

申请日：1984-09-27

申请人： Tatsuo Ishikawa

发明人： Tatsuo Ishikawa

IPC分类号： G06F3/08 ,  G06F3/06 ,  G06F12/00 ,  G06F12/06 ,  G11B7/00 ,  G11B7/30 ,  G11B20/10 ,  G11B20/12 ,  G11B27/00

CPC分类号： G06F3/0601 ,  G06F12/0638 ,  G11B20/1883 ,  G06F2003/0697 ,  G11B2020/1893 ,  G11B2220/20

摘要： A storage system which comprises a first storage unit such as an optical disk incapable of rewriting; a second storage unit such as a magnetic disk capable of rewriting; a control table for registering addresses of the first storage unit in which data are desired to be rewritten and addresses of the second storage unit in which the write-in data are temporarily stored; and a control unit for controlling the second storage unit in accordance with this control table such that the data desird to be rewritten into said addresses of the first storage unit are temporarily stored in the corresponding addresses of the second storage unit. The present invention enables the first storage unit incapable of rewriting to operate as is capable of rewriting. Using an optical disk or other large-capacity storages as the first storage unit will provide a mass storage system capable of rewriting.

摘要翻译： 一种存储系统，包括：不能重写的光盘等第一存储单元; 诸如能够重写的磁盘的第二存储单元; 用于登记需要重写数据的第一存储单元的地址的控制表和暂时存储写入数据的第二存储单元的地址; 以及控制单元，用于根据该控制表控制第二存储单元，使得要重写到第一存储单元的所述地址中的数据被临时存储在第二存储单元的相应地址中。 本发明使得不能重写的第一存储单元能够进行重写。 使用光盘或其他大容量存储作为第一存储单元将提供能够重写的大容量存储系统。

公开(公告)号：US4135994A

公开(公告)日：1979-01-23

申请号：US851632

申请日：1977-11-15

申请人： Tatsuo Ishikawa ,  Hachiro Ichikawa

发明人： Tatsuo Ishikawa ,  Hachiro Ichikawa

IPC分类号： C25C3/06 ,  C25C3/18

CPC分类号： C25C3/06 ,  C25C3/18

摘要： A process for producing aluminum by electrolyzing fused aluminum chloride together with an alkali metal halide to produce chlorine gas at the anode surface and molten aluminum at the cathode surface where the electrolytic bath is of a molten mixed salt consisting essentially of 2 to 15% by weight AlCl.sub.3, 15 to 70% by weight CaCl.sub.2 and/or MgCl.sub.2, provided the amount of CaCl.sub.2 does not exceed 40% by weight, and 83 to 15% by weight NaCl. Metallic aluminum can be produced by electrolyzing aluminum chloride at a high current efficiency reaching about 90 to nearly 100%.

公开(公告)号：US3958066A

公开(公告)日：1976-05-18

申请号：US365497

申请日：1973-05-31

申请人： Kazuyoshi Imamura ,  Tatsuo Ishikawa ,  Tetsuhiro Kusunose

发明人： Kazuyoshi Imamura ,  Tatsuo Ishikawa ,  Tetsuhiro Kusunose

IPC分类号： D06M11/00 ,  D06M11/34 ,  D06M11/36 ,  D06M11/42 ,  D06M11/44 ,  D06M11/45 ,  D06M11/53 ,  D06M11/55 ,  D06M11/83 ,  D06M23/08 ,  D06M101/00 ,  H05K9/00 ,  D06M11/12

CPC分类号： H05K9/009 ,  D06M11/34 ,  D06M11/36 ,  D06M11/44 ,  D06M11/45 ,  D06M11/53 ,  D06M11/55 ,  D06M11/83 ,  Y10T428/2927 ,  Y10T428/2929 ,  Y10T428/2958 ,  Y10T428/2967 ,  Y10T428/2969

摘要： Thermoplastic synthetic polymer fibers having powder of metal attached to the surface of the fibers are subjected to a treatment for increasing the oxidation number of said metal from zero to a plus value, that is, oxidation in a broad sense. The resulting conductive synthetic fibers support a layer of a compound of the metal, i.e. an oxidized product of the metal in a broad sense, firmly and undetchably thereon, and have as low an electric resistivity as 10.sup.5 .OMEGA./cm or less. The conductive fibers can be blended to ordinary synthetic fibers to improve their antistatic property, or can be substituted for expensive metal fibers. The thermoplastic synthetic polymer fibers are sheath-core fibers wherein the sheath has a lower melting point than the core.

摘要翻译： 将具有附着在纤维表面的金属粉末的热塑性合成聚合物纤维进行处理，将所述金属的氧化数从零增加到正值，即广义上的氧化。 所得到的导电合成纤维支撑一层金属化合物，即广义上的金属的氧化产物，牢固且不可剥离地在其上，并具有低至105欧姆/厘米或更小的电阻率。 导电性纤维可以与普通的合成纤维共混以提高其抗静电性，也可以代替昂贵的金属纤维。 热塑性合成聚合物纤维是皮芯型纤维，其中鞘具有比芯更低的熔点。