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    • 2. 发明授权
    • Stamper and method for production thereof
    • 压模及其制造方法
    • US07632628B2
    • 2009-12-15
    • US10553176
    • 2004-04-07
    • Tetsuya IidaMasahiro Katsumura
    • Tetsuya IidaMasahiro Katsumura
    • G11B7/26B29C45/26B29L17/00
    • B29C33/3857B29C45/2632B29L2017/005G11B7/263
    • The present invention relates to a stamper used for an injection molding of a resin material and a manufacturing method thereof. It is provided with such stamper as being excellent in durability in use without causing corrosion at a portion contacting with the resin material, wherein an anti-corrosion film made of any one of alloy selected from a nickel alloy, a silver alloy or a copper alloy is formed on a surface of the stamper contacting with the resin material. Further, it is provided with a method comprising steps of: forming anti-corrosion film on the surface of a mold for manufacturing the stamper; forming the stamper on the anti-corrosion film; and separating the stamper and the anti-corrosion film in a body from the mold.
    • 本发明涉及用于树脂材料注射成型的压模及其制造方法。 设置有这样的压模,其使用寿命优异,而不会在与树脂材料接触的部分处引起腐蚀,其中由选自镍合金,银合金或铜合金中的任何一种合金制成的防腐蚀膜 形成在与树脂材料接触的压模的表面上。 此外,提供了一种方法,包括以下步骤:在用于制造压模的模具的表面上形成防腐蚀膜; 在抗腐蚀膜上形成压模; 以及将模具中的压模和防腐蚀膜与模具分离。
    • 3. 发明授权
    • Information recording apparatus and method therefor
    • 信息记录装置及其方法
    • US06657934B2
    • 2003-12-02
    • US09790287
    • 2001-02-20
    • Masahiro Katsumura
    • Masahiro Katsumura
    • G11B700
    • G11B7/261G11B7/007G11B7/0938G11B7/24085
    • An information recording apparatus and a method therefor which can form a beam guide groove in the shape of highly accurate rectangle having abrupt edges. A recording mark is formed by exposing a recording medium with a recording beam having a beam diameter smaller than the beam guide groove, while periodically vibrating the recording beam in a direction perpendicular to a recording track on the recording medium, or in both horizontal and vertical directions of the recording track. For this purpose, the information recording apparatus for forming a recording mark of a predetermined width in accordance with recording information on a recording surface of an information recording medium comprises, in addition to components conventionally provided therein, recording beam generator for generating a recording beam having a smaller diameter than the width of the recording mark, a displacement information generator for generating displacement information of the recording beam based on the generated recording information, and a beam position controller for offsetting the recording beam based on the displacement information.
    • 一种信息记录装置及其方法,其可以形成具有突变边缘的高精度矩形形状的光束引导槽。 记录标记通过用具有小于光束引导槽的光束直径的记录光束曝光记录介质,同时在与记录介质上的记录轨道垂直的方向周期性地振动记录光束,或者在水平和垂直方向上 记录轨道的方向。 为此,根据记录信息在信息记录介质的记录表面上形成具有预定宽度的记录标记的信息记录装置除了常规设置的部件之外,还包括用于产生记录光束的记录光束发生器,该记录光束发生器具有 比记录标记的宽度小的直径;基于生成的记录信息产生记录光束的位移信息的位移信息发生器;以及基于位移信息来偏移记录光束的光束位置控制器。
    • 6. 发明授权
    • Production method for optical disc
    • 光盘制作方法
    • US06695987B2
    • 2004-02-24
    • US09853676
    • 2001-05-14
    • Masahiro KatsumuraTetsuya IidaTakashi Ueno
    • Masahiro KatsumuraTetsuya IidaTakashi Ueno
    • B29D1100
    • G11B7/263C25D1/10G11B7/261Y10S425/81
    • The present invention is to provide a production method for an optical disc, capable of obtaining a good S/N ratio without deterioration of the stamper quality due to reaction with an electron attractive group contained in a resist material. The processes of forming a resist film on a substrate, patterning the resist film on the substrate by an electron beam cutting, forming a nickel alloy thin film on the patterned resist film, forming a nickel layer on the nickel alloy thin film by the electrocasting, and injection molding of a resin, using the nickel layer peeled off from the nickel alloy thin film as a stamper, are provided. The nickel alloy thin film has a composition containing Ni element as the main component as well as Ru element by less than 25% by weight.
    • 本发明提供一种光盘的制造方法,其能够得到良好的S / N比,而不会由于与抗蚀剂材料中所含的吸电子体的反应而导致压模质量的劣化。 在基板上形成抗蚀剂膜的工艺,通过电子束切割在基板上形成抗蚀剂膜,在图案化的抗蚀剂膜上形成镍合金薄膜,通过电铸在镍合金薄膜上形成镍层, 并且使用从镍合金薄膜剥离的镍层作为压模来注塑树脂。 镍合金薄膜具有含有Ni元素作为主要成分的组成以及Ru元素的组合物的重量比小于25重量%。
    • 10. 发明申请
    • MASTER DISK EXPOSING APPARATUS AND THE ADJUSTING METHOD THEREFOR
    • 主磁盘曝光装置及其调整方法
    • US20090204983A1
    • 2009-08-13
    • US12294164
    • 2007-03-22
    • Masahiro Katsumura
    • Masahiro Katsumura
    • G11B17/028
    • H01J37/3045B82Y10/00B82Y40/00G11B5/743G11B5/82G11B5/84G11B5/855G11B5/865G11B7/261G11B9/10H01J37/3174H01J2237/3045
    • A master disk exposing apparatus having: a turntable for rotating a master disk; moving means for horizontally moving the turntable in at least one direction; beam irradiating means for irradiating an electron beam toward the turntable, thereby forming a beam spot onto the turntable or the master disk; beam deflecting means for deflecting the beam; and control means for controlling the moving means, the beam irradiating means, and the beam deflecting means, wherein the control means includes initializing means for executing an initial operation to drive at least either the moving means or the beam deflecting means and make an origin of the beam spot coincide with a rotational center of the turntable at the time of activation. An apparatus and a method for easily adjusting a deviation between an origin of an irradiating position of the recording beam and the rotational center of the turntable are, thus, provided.
    • 一种主盘曝光装置,具有:用于旋转主盘的转盘; 用于沿至少一个方向水平移动转台的移动装置; 光束照射装置,用于向转盘辐射电子束,从而在光盘或母盘上形成光斑; 用于偏转光束的光束偏转装置; 以及用于控制移动装置,光束照射装置和光束偏转装置的控制装置,其中控制装置包括初始化装置,用于执行初始操作以驱动移动装置或光束偏转装置中的至少一个, 光束点在激活时与转台的旋转中心重合。 因此,提供了用于容易地调节记录光束的照射位置的原点与转台的旋转中心之间的偏差的装置和方法。