公开(公告)号：US5604005A

公开(公告)日：1997-02-18

申请号：US322421

申请日：1994-10-13

申请人： Hiroyuki Endo ,  Tsuyoshi Komaki ,  Hideki Hirata ,  Isamu Kuribayashi

发明人： Hiroyuki Endo ,  Tsuyoshi Komaki ,  Hideki Hirata ,  Isamu Kuribayashi

IPC分类号： G11B11/10 ,  G11B7/24 ,  G11B7/254 ,  G11B11/105 ,  G11B5/66

CPC分类号： G11B7/2542 ,  G11B11/10586 ,  G11B11/1058 ,  G11B2007/24306 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B7/24 ,  G11B7/2534 ,  G11B7/2585 ,  Y10S428/90 ,  Y10T428/265

摘要： A magneto-optical disc comprising a recording layer and a protective coating on a substrate is operated for magneto-optical recording in a magnetic field modulation mode such that the protective coating is in sliding contact with a magnetic head. The protective coating is obtained by curing with radiation a polymerizable composition which contains a fatty acid ester and radiation-curable compounds including a monofunctional (meth)acrylic monomer, a polyfunctional (meth)acrylic monomer, and optionally, an acrylic oligomer.

摘要翻译： 在磁场调制模式中操作包括记录层和保护涂层的磁光盘，以使得保护涂层与磁头滑动接触。 通过辐射固化含有脂肪酸酯的可聚合组合物和包括单官能（甲基）丙烯酸单体，多官能（甲基）丙烯酸单体和任选的丙烯酸低聚物的可辐射固化的化合物）来获得保护涂层。

公开(公告)号：US5578355A

公开(公告)日：1996-11-26

申请号：US400192

申请日：1995-03-03

申请人： Hideki Hirata ,  Hiroyuki Endo ,  Isamu Kuribayashi ,  Tsuyoshi Komaki

发明人： Hideki Hirata ,  Hiroyuki Endo ,  Isamu Kuribayashi ,  Tsuyoshi Komaki

IPC分类号： C08K5/10 ,  C09D201/00 ,  G11B5/72 ,  G11B5/725 ,  G11B11/10 ,  G11B11/105 ,  G11B5/71

CPC分类号： G11B11/10589 ,  G11B11/10584 ,  G11B5/72 ,  G11B5/725 ,  Y10S428/90 ,  Y10T428/24942 ,  Y10T428/249978 ,  Y10T428/249979 ,  Y10T428/249995 ,  Y10T428/265

摘要： A magneto-optical disc includes a substrate, a recording layer, and a protective coating comprised of a resin and a lubricant. The disc is operated for magneto-optical recording in a magnetic field modulation mode such that the protective coating is in sliding contact with a magnetic head. The lubricant is a higher fatty acid ester R.sup.1 --COO--R.sup.2 wherein R.sup.1 is a saturated or unsaturated aliphatic C.sub.10 -C.sub.30 hydrocarbon residue, and R.sup.2 is a saturated or unsaturated aliphatic C.sub.10 -C.sub.30 hydrocarbon residue. Alternatively, the protective coating is formed by curing with radiation a composition containing a lubricant and a radiation-curable compound such that micropores are locally formed in or near the outer surface of the protective coating, the lubricant being distributed in the micropores. In either case, the protective coating is effective for minimizing friction with the magnetic head.

摘要翻译： 磁光盘包括基板，记录层和由树脂和润滑剂组成的保护涂层。 该盘用于磁场调制模式中的磁光记录，使得保护涂层与磁头滑动接触。 润滑剂是高级脂肪酸酯R1-COO-R2，其中R1是饱和或不饱和脂族C10-C30烃残基，R2是饱和或不饱和脂肪族C 10 -C 30烃残基。 或者，通过用辐射固化含有润滑剂和可辐射固化化合物的组合物形成保护涂层，使得微孔局部形成在保护涂层的外表面中或其附近，润滑剂分布在微孔中。 在任一情况下，保护涂层对于最小化与磁头的摩擦是有效的。

公开(公告)号：US5568466A

公开(公告)日：1996-10-22

申请号：US503084

申请日：1995-07-17

申请人： Tsuyoshi Komaki ,  Hiroyuki Endo ,  Hideki Hirata ,  Isamu Kuribayashi

发明人： Tsuyoshi Komaki ,  Hiroyuki Endo ,  Hideki Hirata ,  Isamu Kuribayashi

IPC分类号： G11B5/60 ,  G11B11/10 ,  G11B11/105 ,  G11B21/21 ,  G11B11/00 ,  G11B3/70

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

公开(公告)号：US5580633A

公开(公告)日：1996-12-03

申请号：US277363

申请日：1994-07-19

申请人： Tsuneo Kuwahara ,  Hiroyuki Endo ,  Isamu Kuribayashi ,  Hideki Hirata

发明人： Tsuneo Kuwahara ,  Hiroyuki Endo ,  Isamu Kuribayashi ,  Hideki Hirata

IPC分类号： C23C14/06 ,  G11B11/10 ,  G11B11/105 ,  G11B5/72

CPC分类号： G11B11/10586 ,  G11B11/1058 ,  Y10S428/90 ,  Y10T428/25 ,  Y10T428/26 ,  Y10T428/265 ,  Y10T428/30

摘要： A magneto-optical recording disc adapted for magneto-optical recording in the magnetic field modulation system by means of a magnetic head in continuous contact with the disc includes a recording layer on a substrate and a wear resistant resinous coating thereon. The coating is formed of a resin containing carbon particles having a mean particle size of 1 to 15 .mu.m. The magnetic head is in sliding contact with the surface of the coating during operation. The coating is effective for reducing friction with the magnetic head and retains such reduced friction over a long time.

摘要翻译： 适于在磁场调制系统中通过与盘连续接触的磁头进行磁光记录的磁光记录盘包括在基底上的记录层和其上的耐磨树脂涂层。 涂层由含有平均粒径为1〜15μm的碳粒子的树脂形成。 在操作期间磁头与涂层的表面滑动接触。 该涂层对于减少与磁头的摩擦是有效的，并且在长时间内保持这种减少的摩擦。

公开(公告)号：US5279877A

公开(公告)日：1994-01-18

申请号：US935114

申请日：1992-08-27

申请人： Ryota Uchiyama ,  Hiroyuki Endo ,  Isamu Kuribayashi ,  Shin-ichi Tezuka ,  Tsuneo Kuwahara ,  Hideki Hirata ,  Setsuko Shibuya

发明人： Ryota Uchiyama ,  Hiroyuki Endo ,  Isamu Kuribayashi ,  Shin-ichi Tezuka ,  Tsuneo Kuwahara ,  Hideki Hirata ,  Setsuko Shibuya

IPC分类号： C09D127/18 ,  G11B5/72 ,  G11B5/82 ,  G11B11/105 ,  B32B3/02

CPC分类号： G11B11/10584 ,  C09D127/18 ,  G11B5/72 ,  G11B5/82 ,  Y10T428/254 ,  Y10T428/3154 ,  Y10T428/31544

摘要： A protective coating made of resin, preferably a radiation curable resin containing fluoroplastic fine particles having a low surface energy is provided in the form of the uppermost layer facing a magnetic head, thereby improving the frictional properties and durability of a magneto-optical disc that is used with a magnetic field modulation system in which the magnetic head comes in constant contact therewith.

摘要翻译： 提供由树脂制成的保护涂层，优选为包含具有低表面能的氟塑料微粒的可辐射固化树脂，其形式为面向磁头的最上层，从而改善了磁光盘的摩擦性能和耐久性 与其中磁头恒定接触的磁场调制系统一起使用。

公开(公告)号：US06249509B1

公开(公告)日：2001-06-19

申请号：US08533740

申请日：1995-09-26

申请人： Hideki Hirata ,  Hajime Utsunomiya ,  Isamu Kuribayashi ,  Hiroshi Tanabe

发明人： Hideki Hirata ,  Hajime Utsunomiya ,  Isamu Kuribayashi ,  Hiroshi Tanabe

IPC分类号： G11B724

CPC分类号： G11B7/24097 ,  G11B7/2403 ,  G11B7/24053

摘要： The invention provides an optical disc comprising a circular glass substrate (2) having information-carrying means (3) on one major surface. A protective member (4) of a resin includes a circular flat portion (42) and an annular rim (41) extending perpendicular from the periphery of the flat portion (42). The glass substrate (2) is integrally joined to the protective member (4) such that the information-carrying means (3) of the glass substrate (2) may face the covering portion (42) of the protective member (4). The outer side of the glass substrate (2) is surrounded by the protective member rim (41) to leave a shock absorbing space therebetween. The invention prevents the glass substrate from failure at its corner when impact is applied to the disc.

摘要翻译： 本发明提供了一种光盘，其包括在一个主表面上具有信息传送装置（3）的圆形玻璃基板（2）。 树脂的保护构件（4）包括圆形平坦部分（42）和从平坦部分（42）的周边垂直延伸的环形边缘（41）。 玻璃基板（2）与保护构件（4）一体地接合，使得玻璃基板（2）的信息传送装置（3）可面向保护构件（4）的覆盖部分（42）。 玻璃基板（2）的外侧被保护构件边缘（41）包围，在其间留有减震空间。 本发明防止玻璃基板在对盘施加冲击时在其拐角处发生故障。

公开(公告)号：US5936934A

公开(公告)日：1999-08-10

申请号：US917225

申请日：1997-08-25

申请人： Isamu Kuribayashi ,  Hideki Hirata ,  Akira Itoga

发明人： Isamu Kuribayashi ,  Hideki Hirata ,  Akira Itoga

IPC分类号： G11B7/24 ,  G11B7/253 ,  G11B7/257

CPC分类号： G11B7/2533 ,  G11B7/256 ,  G11B2007/24304 ,  G11B7/2433 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2578 ,  G11B7/2585 ,  G11B7/259 ,  G11B7/2595

摘要： An optical disc is constructed by joining a pair of resin substrates through an adhesive layer so that information carrying means is disposed inside. The resin substrate has a diameter-to-thickness ratio d/t.gtoreq.180. The adhesive layer has a Young's modulus of 0.1-1 kgf/mm.sup.2 at 20.degree. C. and a mechanical dissipation factor (tan.delta.) of 0.6-5.0 at 20.degree. C. The adhesive layer is formed of a hot melt adhesive, pressure-sensitive adhesive, room temperature curable adhesive or ultraviolet curable adhesive. The disc is resistant to both heat and vibration.

摘要翻译： 通过粘合层将一对树脂基板连接起来构成光盘，以便将信息传送装置设置在内部。 树脂基板的直径 - 厚度比d / t> = 180。 粘合剂层在20℃下的杨氏模量为0.1-1kgf / mm 2，20℃下的机械损耗因子（tanδ）为0.6-5.0。粘合剂层由热熔粘合剂形成， 敏感粘合剂，室温可固化粘合剂或紫外线固化粘合剂。 光盘耐热和振动。

公开(公告)号：US06091503A

公开(公告)日：2000-07-18

申请号：US327505

申请日：1999-06-08

申请人： Isamu Kuribayashi ,  Hideki Hirata

发明人： Isamu Kuribayashi ,  Hideki Hirata

IPC分类号： G01B11/08 ,  G01B11/02 ,  G01B11/255 ,  G01M11/00 ,  G01N3/06 ,  G01N3/16 ,  G11B7/0037 ,  G11B7/26 ,  G11B23/00 ,  G01N21/84 ,  G01B11/04

CPC分类号： G11B23/0021 ,  G01B11/028 ,  G01B11/255 ,  G01N3/165 ,  G11B7/00375 ,  G11B7/26 ,  G01N2203/0641

摘要： A mechanical property such as axial acceleration of an injection molded resin disc substrate or an optical disc comprising the same is determined by measuring a variation in radius or diameter of the substrate or disc in its circumferential direction, and determining the mechanical property of the substrate or disc from the measurement.

摘要翻译： 通过测量基板或圆盘的圆周方向的半径或直径的变化来确定注塑树脂盘基片的轴向加速度或包括其的光盘的机械特性，并且确定基片的机械性能或 光盘从测量。

公开(公告)号：US07374806B2

公开(公告)日：2008-05-20

申请号：US10506605

申请日：2003-03-10

申请人： Hideki Hirata ,  Tsuyoshi Komaki ,  Tomoki Ushida ,  Juichi Fujimoto ,  Kouji Hayama

发明人： Hideki Hirata ,  Tsuyoshi Komaki ,  Tomoki Ushida ,  Juichi Fujimoto ,  Kouji Hayama

IPC分类号： B32B3/02

CPC分类号： G11B7/2542 ,  G03F7/027 ,  G03F7/11 ,  G11B7/2433 ,  G11B7/2437 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/256 ,  G11B7/2585 ,  G11B2007/2571 ,  G11B2007/25713

摘要： An optical information medium having a light transmission layer obtained by curing a composition containing a urethane di(meth)acrylate (A) of the formula (I) and the other urethane di(meth)acrylate (B), and having a tensile elastic modulus of 600 to 1300 MPa at 25° C. and a light transmittance of 80% or more at wavelength of 400 nm (in the formula, R1=an alicyclic diisocyanate residue, R2=an alkylene group or an organic group containing a cycloalkyl group or ester bond, R3=H or methyl group.):

摘要翻译： 一种光学信息介质，其具有通过固化含有式（I）的氨基甲酸酯二（甲基）丙烯酸酯（A）和其它氨基甲酸酯二（甲基）丙烯酸酯（B））的组合物而得到的透光层，并且具有拉伸弹性模量 在25℃下为600〜1300MPa，在400nm波长下的透光率为80％以上（式中，R 1 =脂环族二异氰酸酯残基R 2， / SUB> =亚烷基或含有环烷基或酯键的有机基团，R 3 = H或甲基。）：

公开(公告)号：US6087067A

公开(公告)日：2000-07-11

申请号：US55873

申请日：1998-04-07

申请人： Tatsuya Kato ,  Hajime Utsunomiya ,  Tsuyoshi Komaki ,  Hideki Hirata

发明人： Tatsuya Kato ,  Hajime Utsunomiya ,  Tsuyoshi Komaki ,  Hideki Hirata

IPC分类号： G11B7/24 ,  G11B7/254 ,  G11B7/257

CPC分类号： G11B7/257 ,  G11B7/24 ,  G11B7/2542 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  G11B2007/25706 ,  G11B2007/2571 ,  G11B2007/25715 ,  G11B2007/25716 ,  G11B7/252 ,  G11B7/2534 ,  G11B7/256 ,  Y10S430/146

摘要： An optical recording medium of phase change type, and in particular, a dual side medium prepared by adhering two single side media is provided. In this medium, deformation of record marks generated in the overwriting due to difference in light absorption between the record marks and the region other than the record marks is prevented by providing a reflective layer of high light transmission, and increase in jitter and failure of track servo and focus servo caused by uneven coating of the adhesive layer and the resin protective layer are prevented. The optical recording medium comprises a substrate, a recording layer of phase change type on the surface side of the substrate, and a reflective layer and a light absorption layer disposed in this order on the surface side of the recording layer. The light absorption layer has a light transmission of 85% or higher in wavelength range S (wavelength in the range of 400 to 450 nm), up to 55% at the recording/reproducing wavelength, and 80% or higher in wavelength range L (wavelength in the range of 800 to 830 nm).

摘要翻译： 提供了相变型的光记录介质，特别是提供了通过粘附两个单面介质制备的双面介质。 在该介质中，由于记录标记与记录标记之外的区域之间的光吸收差异而在重写中产生的记录标记的变形通过提供高光传输的反射层而被防止，并且增加了轨迹的抖动和故障 防止了粘合剂层和树脂保护层的不均匀涂覆引起的伺服和聚焦伺服。 光记录介质包括基板，基板的表面侧的相变型记录层，以及依次设置在记录层的表面侧的反射层和光吸收层。 光吸收层的波长范围S（波长在400〜450nm）的光透射率高达85％以上，记录/再生波长为55％以下，波长范围为80％以上 波长在800至830nm的范围内）。