Magnetic recording medium
    11.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号:US06855394B2

    公开(公告)日:2005-02-15

    申请号:US10178764

    申请日:2002-06-25

    IPC分类号: G11B5/70 G11B5/706 G11B5/708

    摘要: A magnetic recording medium is disclosed, comprising a support having provided thereon a substantially nonmagnetic lower layer by coating a lower layer coating solution comprising a nonmagnetic powder dispersed in a binder and drying, and a layer having a thickness of from 0.01 to 0.15 μm by coating a magnetic layer coating solution comprising a ferromagnetic metal powder or a hexagonal ferrite powder dispersed in a binder, wherein the magnetic layer contains diamond particles having an average particle size of from 1/5 to 2 times the thickness of the magnetic layer in an amount of from 0.1 to 5.0 mass % based on the ferromagnetic metal powder.

    摘要翻译: 公开了一种磁记录介质,其包括通过涂布包含分散在粘合剂中的非磁性粉末的下层涂布溶液和干燥而在其上设置有基本上非磁性的下层的载体,以及通过涂布具有0.01至0.15μm厚度的层 包含分散在粘合剂中的铁磁性金属粉末或六方铁氧体粉末的磁性层涂布液,其中所述磁性层含有平均粒度为磁性层厚度的1/5至2倍的金刚石颗粒,其量为 基于强磁性金属粉末为0.1〜5.0质量%。

    Magnetic recording and reproduction method
    12.
    发明申请
    Magnetic recording and reproduction method 失效
    磁记录和再现方法

    公开(公告)号:US20050013046A1

    公开(公告)日:2005-01-20

    申请号:US10890090

    申请日:2004-07-14

    摘要: A magnetic recording and reproduction method comprising recording or reproducing a track of a rotating magnetic disk by means of a magnetic head, wherein the magnetic disk comprises a support and a magnetic layer containing ferromagnetic powder and a binder; the track has a breadth of 2 μm or less; and a frictional force between the magnetic layer and the magnetic head at innermost peripheral area of a recording region of the magnetic disk is 30 mN or less, a frictional force between the magnetic layer and a magnetic head at outermost peripheral area of a recording region of the magnetic disk is 20 mN or less, and a ratio of the frictional force at the innermost peripheral area to the frictional force at the outermost peripheral area is from 1.0 to 4.0.

    摘要翻译: 一种磁记录和再现方法,包括通过磁头记录或再现旋转磁盘的轨道,其中磁盘包括支撑件和包含铁磁粉末和粘合剂的磁性层; 轨道的宽度为2 mum以下; 并且在磁盘的记录区域的最内周区域处的磁性层和磁头之间的摩擦力为30mN以下,磁性层与记录区域的最外周区域的磁头之间的摩擦力 磁盘为20mN以下,最外围区域的摩擦力与最外周面积的摩擦力的比为1.0〜4.0。

    Magnetic recording medium
    13.
    发明授权
    Magnetic recording medium 有权
    磁记录介质

    公开(公告)号:US06780503B2

    公开(公告)日:2004-08-24

    申请号:US10281947

    申请日:2002-10-29

    IPC分类号: G11B5702

    摘要: A magnetic recording medium comprising: a nonmagnetic support; and at least one magnetic layer comprising a ferromagnetic hexagonal ferrite powder and a binder, wherein the magnetic layer comprises diamond particles having an average particle size of 0.03 to 0.5 &mgr;m in a ratio of 0.1 to 5% by weight to the ferromagnetic hexagonal ferrite powder, the ferrite hexagonal ferrite powder has an average tabular diameter of 5 to 40 nm, and the binder is at least one of: (i) a binder comprising from 0.2 to 0.7 meq/g of at least one polar group selected from —SO3M, —OSO3M, —PO(OM)2, —OPO(OM)2 and —COOM, wherein M represents a hydrogen atom, an alkali metal or ammonium, and (ii) a binder comprising from 0.5 to 5 meq/g of at least one polar group selected from —CONR1R2, —NR1R2 and —N+R1R2R3 wherein R1, R2 and R3 each independently represents a hydrogen atom or an alkyl group.

    摘要翻译: 一种磁记录介质,包括:非磁性载体; 以及包含铁磁性六角铁氧体粉末和粘合剂的至少一个磁性层,其中所述磁性层包含平均粒度为0.03-0.5μm,相对于铁磁性六角铁氧体粉末为0.1-5wt%的金刚石颗粒, 所述铁氧体六角铁氧体粉末的平均片状直径为5〜40nm,所述粘合剂为以下中的至少一种:(i)包含0.2〜0.7meq / g的至少一种选自-SO 3 M, OSO3M,-PO(OM)2,-OPO(OM)2和-COOM,其中M表示氢原子,碱金属或铵,和(ii)包含0.5-5meq / g至少一种 选自-CONR1R2,-NR1R2和-N + R1R2R3的极性基团,其中R1,R2和R3各自独立地表示氢原子或烷基。

    Method for producing magnetic recording medium and magnetic recording medium
    14.
    发明授权
    Method for producing magnetic recording medium and magnetic recording medium 有权
    磁记录介质和磁记录介质的制造方法

    公开(公告)号:US06677036B2

    公开(公告)日:2004-01-13

    申请号:US10281996

    申请日:2002-10-29

    IPC分类号: B05D512

    摘要: A method for producing a magnetic recording medium comprising: dispersing at least a binder and a ferromagnetic hexagonal ferrite powder to prepare a magnetic coating; and applying the magnetic coating to provide at least one magnetic layer, wherein the binder is at least one of: (a) a binder comprising 0.2 to 0.7 meq/g of at least one polar group selected from —SO3M, —OSO3M, —PO(OM)2, —OPO(OM)2 and —COOM wherein M represents a hydrogen atom, an alkali metal or ammonium; and (b) a binder comprising 0.5 to 5 meq/g of at least one polar group selected from —CONR1R2, —NR1R2 and —N+R1R2R3 wherein R1, R2 and R3 each independently represents a hydrogen atom or an alkyl group, and the ferromagnetic hexagonal ferrite powder has an average tabular diameter of from 10 to 40 nm and a water content of from 0.3 to 3% by weight.

    摘要翻译: 一种制造磁记录介质的方法,包括:分散至少一种粘结剂和一种铁磁性六角铁氧体粉末以制备磁性涂层; 以及施加所述磁性涂层以提供至少一个磁性层,其中所述粘合剂是以下至少一种:(a)包含0.2至0.7meq / g的至少一种选自-SO 3 M,-OSO 3 M,-PO (OM)2,-OPO(OM)2和-COOM,其中M表示氢原子,碱金属或铵; 和(b)包含0.5-5meq / g至少一种选自-CONR1R2,-NR1R2和-N + R1R2R3的极性基团的粘合剂,其中R1,R2和R3各自独立地表示氢原子或烷基, 铁磁六方铁氧体粉末的平均片状直径为10〜40nm,水含量为0.3〜3重量%。

    Method for preparation of diamond film
    15.
    发明授权
    Method for preparation of diamond film 失效
    金刚石膜的制备方法

    公开(公告)号:US06465049B2

    公开(公告)日:2002-10-15

    申请号:US09741431

    申请日:2000-12-21

    IPC分类号: B05D122

    CPC分类号: C23C16/274 C23C16/0254

    摘要: In subjecting a substrate of low electric conductivity to a pretreatment by holding the same within a fluidized bed of diamond particles for the formation of a diamond film on the substrate surface, a treatment method is disclosed which is capable of preventing decrease in the effect of the pretreatment. The pretreatment of the substrate is conducted within a fluidized bed of diamond particles by keeping the electrostatic potential of the substrate in the range from −1.5 to +1.5 kV. It is desirable that the relative humidity of the gas for the fluidization of diamond particles is controlled to be 40% or higher. It is more desirable that ion bombardment onto the substrate surface to effect neutralization of the electrostatic charges. The fluidizing gas is humidified preferably by using a bubbling apparatus or spraying apparatus.

    摘要翻译: 在将低电导率的基板保持在金刚石颗粒的流化床内​​以在基板表面上形成金刚石膜的情况下进行预处理,公开了一种能够防止在基板表面上形成金刚石膜的处理方法 预处理。 通过将衬底的静电电位保持在-1.5至+ 1.5kV的范围内,在金刚石颗粒的流化床内​​进行衬底的预处理。 金属颗粒的流化气体的相对湿度优选为40%以上。 更希望离子轰击到衬底表面上以实现静电电荷的中和。 流化气体优选通过使用鼓泡装置或喷雾装置进行加湿。

    Method for the preparation of a resin membrane
    17.
    发明授权
    Method for the preparation of a resin membrane 失效
    树脂膜的制备方法

    公开(公告)号:US5308567A

    公开(公告)日:1994-05-03

    申请号:US908452

    申请日:1992-07-06

    IPC分类号: B29C41/12 B29C41/28 B29D7/01

    CPC分类号: B29D7/01 B29C41/28

    摘要: A method is proposed for the preparation of a resin membrane suitable for use, for example, as a covering pellicle of a photolithographic mask for patterning of semiconductor devices in the electronic industry. The method comprises the steps of: (a) coating a continuous-length substrate with a solution of the resin by using a roller coater to form a coating layer of the resin solution; (b) drying the coating layer by evaporating the solvent to form a dry resin film on the substrate surface; and (c) peeling the resin film from the surface of the substrate, preferably, in water.

    摘要翻译: 提出了一种用于制备适用于电子工业中用于图案化半导体器件的光刻掩模的覆盖薄膜的树脂膜的方法。 该方法包括以下步骤:(a)使用辊式涂布机用树脂溶液涂布连续长度的基材以形成树脂溶液的涂层; (b)通过蒸发溶剂干燥涂层以在基材表面上形成干树脂膜; 和(c)优选在水中从树脂膜的表面剥离树脂膜。

    X-ray lithographic mask blank with reinforcement
    18.
    发明授权
    X-ray lithographic mask blank with reinforcement 失效
    X光平版印刷掩模板加强

    公开(公告)号:US5199055A

    公开(公告)日:1993-03-30

    申请号:US908330

    申请日:1992-07-06

    CPC分类号: G03F1/22 G03F7/70866 G21K1/06

    摘要: Proposed is a high-precision X-ray lithographic mask blank with reinforcement free from warping or distortion. The mask blank is an integral body comprising: (a) a frame made from a silicon wafer; (b) a membrane of an X-ray permeable material such as silicon carbide adhering to and supported by one surface of the frame; and (c) a reinforcing member made from a single crystal of silicon adhesively bonded to the other surface of the frame with (d) a layer of silicon oxide intervening between the frame and the reinforcing member. The mask blank can be prepared in a process of first forming a layer of silicon oxide on the surface of the silicon wafer and/or reinforcing member prior to deposition of the X-ray permeable film on the silicon wafer and heating them together at a temperature of 800.degree. C. or lower while they are in direct contact with each other with the silicon oxide layer intervening therebetween.

    摘要翻译: 提出了一种高精度的X光平版印刷掩模,无需翘曲或变形。 掩模坯料是一体的主体,其包括:(a)由硅晶片制成的框架; (b)附着在框架的一个表面并由其支撑的诸如碳化硅的X射线透过材料的膜; 和(c)由硅的单晶制成的加强构件,其与(d)介于框架和加强构件之间的氧化硅层粘合地结合到框架的另一个表面。 掩模坯料可以在将X射线透过膜沉积在硅晶片上之前首先在硅晶片和/或加强元件的表面上形成氧化硅层的过程中制备,并在温度 800℃以下,同时它们彼此直接接触,其间介于其间的氧化硅层。

    Integrating component measuring device
    20.
    发明授权
    Integrating component measuring device 失效
    集成元件测量装置

    公开(公告)号:US3947760A

    公开(公告)日:1976-03-30

    申请号:US538496

    申请日:1975-01-03

    IPC分类号: G01R27/02 H03M1/00 G01R27/00

    CPC分类号: G01R27/02 H03M1/52

    摘要: A method and means for measuring the electric properties of capacitor, inductor and resistor elements is described. The element to be measured and a reference element are connected in series, and standard A.C. voltage is applied to one end of the series circuit whereas a variable voltage is applied to the other end of said circuit. The variable voltage is controlled in order to zero the voltage or the current at the common junction of both the element to be measured and the reference element. Said standard voltage and said variable voltage are rectified, and the generated D.C. signals are used for charging integrator capacitors. These capacitors are then discharged and the ratio of charging and discharging time is a measure of the resistance, capacitance and inductance, respectively, of the unknown element. Dielectric and magnetic dissipation factors may be measured in a similar manner.

    摘要翻译: 描述了用于测量电容器,电感器和电阻器元件的电特性的方法和装置。 要测量的元件和参考元件串联连接,并且将标准交流电压施加到串联电路的一端,而可变电压被施加到所述电路的另一端。 控制可变电压以便将要测量的元件和参考元件的公共接点处的电压或电流归零。 所述标准电压和所述可变电压被整流,所产生的直流信号用于对积分电容器进行充电。 然后,这些电容器被放电,并且充电和放电时间的比率分别是未知元件的电阻,电容和电感的量度。 可以以类似的方式测量电介质和磁损耗因子。