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公开(公告)号：US20050167869A1
公开(公告)日：2005-08-04
申请号：US11091766
申请日：2005-03-29
申请人： Tsuyoshi Komaki , Kenji Yamaga , Hideki Hirata
发明人： Tsuyoshi Komaki , Kenji Yamaga , Hideki Hirata
IPC分类号： G11B7/24 , G11B7/26 , G11B11/105 , B29D17/00
CPC分类号： G11B7/24056 , G11B7/26 , G11B11/10582 , G11B11/10584
摘要： An optical information medium includes a disk-shaped substrate (100) having a center hole (101), an annular information recording area thereon, and an annular resin-based light-transmitting layer (102) thereon by which recording/reading laser beam is transmitted to the information recording area. The light-transmitting layer (102) terminates at a radially inner periphery which forms an annular raised rim (6). The rim is effective for protecting the light-transmitting layer from damages and dust adhesion, and when a plurality of such media are stacked, preventing the media from intimate contact.
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公开(公告)号：US06898796B2
公开(公告)日：2005-05-24
申请号：US09875974
申请日：2001-06-08
申请人： Tsuyoshi Komaki , Kenji Yamaga , Hideki Hirata
发明人： Tsuyoshi Komaki , Kenji Yamaga , Hideki Hirata
IPC分类号： G11B7/24 , G11B7/26 , G11B11/105 , G11B23/03 , G11B5/84
CPC分类号： G11B7/24056 , G11B7/26 , G11B11/10582 , G11B11/10584
摘要： An optical information medium includes a disk-shaped substrate (100) having a center hole (101), an annular information recording area thereon, and an annular resin-based light-transmitting layer (102) thereon by which recording/reading laser beam is transmitted to the information recording area. The light-transmitting layer (102) terminates at a radially inner periphery which forms an annular raised rim (6). The rim is effective for protecting the light-transmitting layer from damages and dust adhesion, and when a plurality of such media are stacked, preventing the media from intimate contact.
摘要翻译： 光信息介质包括具有中心孔（101），其上的环形信息记录区域和在其上的环形树脂基透光层（102）的圆盘状基板（100），记录/读取激光束 传送到信息记录区。 透光层（102）终止在形成环形凸缘（6）的径向内周边。 该边缘对于保护透光层免受损伤和灰尘附着是有效的，并且当堆叠多个这样的介质时，防止介质紧密接触。
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公开(公告)号：US20050053750A1
公开(公告)日：2005-03-10
申请号：US10929681
申请日：2004-08-31
申请人： Tsuyoshi Komaki
发明人： Tsuyoshi Komaki
CPC分类号： B29C41/045 , B29C33/0033 , B29C41/20 , B29C41/40 , B29C2035/0827 , B29D17/005 , B29L2017/005 , G11B7/266
摘要： A method for manufacturing an optical recording medium is provided, which can suppress the amount of eccentricity of a central hole to be small and can form a light transmitting layer with a uniform thickness even in a region around the central hole. In this manufacturing method, a manufacturing hole having a smaller inner diameter than that of the central hole is formed in a substrate. A core member is fitted into the manufacturing hole to be in close contact with the inner circumference of the manufacturing hole. A light transmitting layer is spread over an information recording surface of the substrate by supplying radiation curable resin in a region around the core member and rotating the substrate. Then, the light transmitting layer is cured by irradiation of radiation, and the core member is removed from the manufacturing hole. Thereafter the central hole is formed.
摘要翻译： 提供了一种用于制造光学记录介质的方法，其可以抑制中心孔的偏心量小，并且即使在中心孔周围的区域中也可以形成均匀厚度的透光层。 在该制造方法中，在基板上形成内径小于中心孔的制造孔。 芯构件装配到制造孔中以与制造孔的内周紧密接触。 通过在芯构件周围的区域中提供可辐射固化树脂并旋转衬底，将光透射层分布在衬底的信息记录表面上。 然后，通过辐射照射使透光层固化，并且将芯构件从制造孔移除。 此后形成中心孔。
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公开(公告)号：US20050048250A1
公开(公告)日：2005-03-03
申请号：US10926757
申请日：2004-08-25
申请人： Kenji Yamaga , Tsuyoshi Komaki
发明人： Kenji Yamaga , Tsuyoshi Komaki
CPC分类号： B29C33/424 , B29C33/428 , B29C45/2632 , B29C2045/2667 , B29D17/00 , B29D17/005 , B29L2017/005
摘要： A molding mold assembly is provided, for molding a mold substrate for an optical disc, to reduce an occurrence of burrs, etc. adversely affecting the optical disc and to improve accuracy of thickness of the optical disc made by the mold substrate. A substrate for an optical disc is provided that is capable of improving the accuracy of the thickness, as well as an optical disc with the improved accuracy of the thickness. The molding mold assembly is constructed such that a cavity for molding the mold substrate for the optical disc is configured, a stamper for transferring a hyperfine pattern onto the mold substrate is attached to the mold assembly so that a vicinal part of an innermost periphery portion of the stamper protrudes towards the cavity, and a face formed by a mold member configuring an inner peripheral portion of the mold substrate is substantially flush with an information area face on which the hyperfine pattern has been transferred.
摘要翻译： 提供了一种用于模制用于光盘的模具基板的模制模具组件，以减少对光盘的不利影响的毛刺等的发生，并提高由模具基板制成的光盘的厚度的精度。 提供了一种能够提高厚度精度的光盘用基板，以及具有提高的厚度精度的光盘。 成型模具组件被构造成使得用于模制用于光盘的模具基板的空腔被配置，用于将超精细图案转印到模具基板上的压模附接到模具组件，使得最接近模具的最内周边部分的相邻部分 压模朝向空腔突出，并且由构成模具基板的内周部分的模具构件形成的表面与其上已经传送超精细图案的信息区域面基本齐平。
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公开(公告)号：US06437017B1
公开(公告)日：2002-08-20
申请号：US09508519
申请日：2000-03-27
申请人： Tsuyoshi Komaki
发明人： Tsuyoshi Komaki
IPC分类号： C08F248
CPC分类号： B41M5/5209 , B41M5/508 , B41M5/5218 , B41M5/5254 , B41M2205/12 , C09D4/00 , G11B7/2472 , G11B7/2495 , G11B7/2534 , G11B7/2542 , G11B2007/24612 , Y10T428/21 , C08F222/20 , C08F220/28
摘要： There are provided a composition for coating which can form an ink receiving layer having excellent adhesion with hydrophobic substrates, water-resistance and printing stability, and an optical recording medium having an ink receiving layer formed from this composition. The composition contains a radiation-curable compound (A) composed of 50 to 90% by weight of a monofunctional (meth) acrylic monomer and 10 to 50% by weight of a multifunctional (meth) acrylic monomer, a water-absorbing organic filler (C) in an amount of 10 to 60% by weight relative to (A), and a water-absorbing inorganic filler (D) in an amount of 1 to 20% by weight relative to (A). This composition is applied on a protecting film (6) and cured to form an ink receiving layer (7), to obtain an optical disk (1).
摘要翻译： 提供了一种涂料组合物，其可以形成具有优异的与疏水基材的粘附性的油墨接收层，耐水性和印刷稳定性，以及具有由该组合物形成的油墨接收层的光学记录介质。 该组合物含有由50〜90重量％的单官能（甲基）丙烯酸系单体和10〜50重量％的多官能（甲基）丙烯酸系单体，吸水性有机填料（ C）相对于（A）为10〜60重量％，相对于（A）为1〜20重量％的吸水性无机填料（D）。 将该组合物施加在保护膜（6）上并固化以形成油墨接收层（7），以获得光盘（1）。
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公开(公告)号：US5568466A
公开(公告)日：1996-10-22
申请号：US503084
申请日：1995-07-17
CPC分类号： G11B11/10586 , G11B11/10584
摘要： A magneto-optical disc includes a recording layer (4) and a protective film (7) of radiation-cured resin on a substrate (2). Information is written in the recording layer with the aid of a magnetic head in sliding contact with the disc. In a first form, when the protective film is subject to a micro-vibration scratch test by setting the disc in a thin film scratch tester equipped with a diamond indentor having a radius of curvature R of up to 50 .mu.m, the relationship: 0.8.ltoreq.L/R.sup.2 .ltoreq.2.7 is met wherein L is the critical load (N.m) under which the thin film is scratched. In a second form, the protective film has a dynamic modulus of 5.0.times.10.sup.9 to 4.0.times.10.sup.10 dyn/cm.sup.2 at 100.degree. C. The disc is highly durable.
摘要翻译： 磁光盘包括在基板（2）上的记录层（4）和辐射固化树脂的保护膜（7）。 借助于与盘滑动接触的磁头将信息写入记录层。 在第一种形式中，当通过将该盘设置在具有曲率半径R至多为50μm的金刚石压痕器的薄膜划痕试验机中进行微振动划痕试验时，保护膜的关系为：0.8 满足
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