公开(公告)号：US5263016A

公开(公告)日：1993-11-16

申请号：US963025

申请日：1992-10-19

申请人： Takeshi Minoda ,  Akira Todo ,  Toshio Kimura ,  Masayoshi Kurisu

发明人： Takeshi Minoda ,  Akira Todo ,  Toshio Kimura ,  Masayoshi Kurisu

IPC分类号： G11B7/24 ,  G11B23/00 ,  G01D15/34 ,  G11B7/26

CPC分类号： G11B7/24097 ,  G11B23/0035 ,  Y10S430/146

摘要： An information recording disc including a plurality of disc substrates (2), at least one of which has a recording medium containing layer (1), two pieces of hubs mounted over the center hole of said disc substrates on both sides thereof, each hub having a portion to be inserted into said center hole and a flange portion to cover a portion of said disc substrate in the vicinity of said center hole, and an adhesive layer (13, 14) formed between said hubs and said disc substrates and between said two hubs. An adhesive layer (7) laminates the substrates (2a, 2b) to one another.

摘要翻译： 一种信息记录盘，包括多个盘基片（2），其中至少一个具有记录介质容纳层（1），两片轮毂安装在其两侧的所述光盘基片的中心孔上，每个轮毂具有 插入所述中心孔的部分和在所述中心孔附近覆盖所述盘基片的一部分的凸缘部分，以及形成在所述毂和所述盘基片之间以及所述两个中心孔之间的粘合剂层（13,14） 枢纽 粘合层（7）将基板（2a，2b）彼此叠合。

公开(公告)号：US4943611A

公开(公告)日：1990-07-24

申请号：US224685

申请日：1988-07-27

申请人： Akira Todo ,  Toshio Kimura ,  Takeshi Minoda ,  Masayoshi Kurisu

发明人： Akira Todo ,  Toshio Kimura ,  Takeshi Minoda ,  Masayoshi Kurisu

IPC分类号： C08L23/00 ,  C08K3/36 ,  C08K5/01 ,  G11B7/24

CPC分类号： G11B7/24015 ,  C08K3/36

摘要： A resin composition for spacers of an information recording disc which comprises: (A) a random copolymer of ethylene and at least one cycloolefin having an intrinsic viscosity [.eta.] of from 0.05 to 10 dl/g, as measured in decalin at a temperature of 135.degree. C., and (B) from 0.01 to 5 parts by weight, based on 100 parts by weight, of said copolymer A, of an inorganic particles such as titania and silica having a particle size of not more than 300 .mu.m. Spacers made of the composition described herein can be welded to disc substrates within a shortened period of ultrasonic vibration to produce an information recording disc having a reduced warp angle.

公开(公告)号：US4909871A

公开(公告)日：1990-03-20

申请号：US224682

申请日：1988-07-27

申请人： Akira Todo ,  Toshio Kimura ,  Takeshi Minoda ,  Masayoshi Kurisu

发明人： Akira Todo ,  Toshio Kimura ,  Takeshi Minoda ,  Masayoshi Kurisu

IPC分类号： B29C65/08 ,  G11B7/26

CPC分类号： G11B7/26 ,  B29C65/08 ,  B29C65/7811 ,  B29C66/3024 ,  B29C66/452 ,  B29C66/73921 ,  B29C66/80 ,  B29C66/81425 ,  B29C66/81427 ,  B29C66/81431 ,  B29C66/8322 ,  B29C66/30221 ,  B29C66/71 ,  B29L2017/005 ,  Y10T156/1093

摘要： A process for producing an information recording disc of an air sandwich structure by ultrasonic welding two disc substrates, at least one of which has a recording medium containing layer, to each other through outer and inner peripheral spacers lying therebetween, which process is characterized in that the outer peripheral spacer is first welded to the disc substrate on one side, the disc substrate on the other side is then superposed through the inner peripheral spacer on said outer peripheral spacer-welded disc substrate turned inside out, and said outer peripheral spacer and disc substrate on the other side, and said inner peripheral spacer and disc substrates on both sides are ultrasonic welded together simultaneously.

公开(公告)号：US5020207A

公开(公告)日：1991-06-04

申请号：US492385

申请日：1990-03-09

申请人： Takeshi Minoda ,  Akira Todo ,  Toshio Kimura ,  Masayoshi Kurisu

发明人： Takeshi Minoda ,  Akira Todo ,  Toshio Kimura ,  Masayoshi Kurisu

IPC分类号： G11B7/26 ,  B29C45/14 ,  G11B23/00

CPC分类号： G11B23/0035 ,  B29C45/14065 ,  B29C45/14778 ,  B29K2705/00 ,  Y10S29/029 ,  Y10T29/4949 ,  Y10T29/49906 ,  Y10T29/49986

摘要： A process for producing a magnetic hub for an optical disc which is fixed to the spindle of a disc drive by means of a magnetic clamp system, which process comprises positioning and setting an annular metal plate composed of a ferromagnetic substance having burrs on one side thereof produced by punching in a mold and then injecting a resin into the mold.

公开(公告)号：US4834819A

公开(公告)日：1989-05-30

申请号：US230974

申请日：1988-08-11

申请人： Akira Todo ,  Toshio Kimura ,  Masayoshi Kurisu

发明人： Akira Todo ,  Toshio Kimura ,  Masayoshi Kurisu

IPC分类号： G11B7/26 ,  B29C65/08 ,  B29D17/00 ,  G11B7/24 ,  G11B23/00

CPC分类号： B29C65/08 ,  B29C66/24221 ,  B29C66/73921 ,  B29C66/80 ,  B29C66/81425 ,  B29C66/81427 ,  B29C66/81431 ,  B29D17/005 ,  G11B23/0021 ,  G11B7/24015 ,  B29C66/3022 ,  B29C66/45 ,  B29L2017/005 ,  Y10T156/1093

摘要： A process for producing information recording discs of an air sandwich structure by ultrasonic welding together two disc substrates, at least one of which has a recording medium containing layer, through outer and inner peripheral spacers lying therebetween, which process is characterized in that the ultrasonic welding is carried out by the use of a horn and an anvil which are so designed that each of said horn and said anvil has a difference in height along the axial direction between its portion corresponding to the outer peripheral spacer and its portion corresponding to the inner peripheral spacer, wherein the sum of differences in height of said horn and said anvil corresponds to the difference in thickness between the outer peripheral poritons of said two disc substrates plus the outer peripheral spacer and the inner peripheral portions of said two disc substrates plus the inner peripheral spacer.

公开(公告)号：US5448547A

公开(公告)日：1995-09-05

申请号：US172809

申请日：1993-12-27

申请人： Takeshi Minoda ,  Masayoshi Kurisu

发明人： Takeshi Minoda ,  Masayoshi Kurisu

IPC分类号： G11B7/24 ,  G11B23/00

CPC分类号： G11B7/24 ,  G11B23/0035

摘要： Information recording discs comprise a disc substrate having a recording layer on one side thereof, one hub having an insertion portion to be inserted into a center hole of the disc substrate and a flange portion to cover the disc substrate in the vicinity of the center hole, at least an apex of the insertion portion being composed of a magnetic material, the hub being inserted into the center hole so that the flange portion is positioned on the recording layer side of the disc substrate, and an adhesive layer is provided between the flange portion and the disc substrate. By this construction, a portion of the hub which protrudes from the back surface of the disc substrate, facing toward the spindle of a turn table can be altered in dimension and/or the diameter of the protrusion portion of the hub can be made smaller than that of the center hole of the disc substrate. Thus, the hub has a large degree of freedom of shape and can have a structure fitted to the shape of a turn table, while still providing a large adhesive surface between the hub and the disc substrate for strength.

摘要翻译： 信息记录盘包括在其一侧上具有记录层的盘基片，一个毂具有插入盘基片的中心孔的插入部分和在中心孔附近覆盖盘基片的凸缘部分， 所述插入部的至少顶点由磁性材料构成，所述毂插入所述中心孔，使得所述凸缘部位于所述盘基板的记录层侧，并且在所述凸缘部 和盘基片。 通过这种结构，轮毂的从盘基片的后表面突出的一部分面向转盘的主轴的尺寸可以改变，并且/或轮毂的突出部分的直径可以小于 圆盘基板的中心孔。 因此，毂具有较大的形状自由度，并且可以具有与转台的形状相配合的结构，同时在轮毂和盘基片之间仍然提供强大的粘合剂表面。

公开(公告)号：US5301183A

公开(公告)日：1994-04-05

申请号：US999534

申请日：1992-12-31

申请人： Takeshi Minoda ,  Masayoshi Kurisu

发明人： Takeshi Minoda ,  Masayoshi Kurisu

IPC分类号： G11B7/24 ,  G11B23/00

CPC分类号： G11B23/0035 ,  G11B7/24

摘要： Information recording discs comprise a disc substrate having a recording layer on one side thereof, one hub having an insertion portion to be inserted into a center hole of the disc substrate and a flange portion to cover the disc substrate in the vicinity of the center hole, at least an apex of the insertion portion being composed of a magnetic material, the hub being inserted into the center hole so that the flange portion is positioned on the recording layer side of the disc substrate, and an adhesive layer is provided between the flange portion and the disc substrate. By this construction, a portion of the hub which protrudes from the back surface of the disc substrate, facing toward the spindle of a turn table can be altered in dimension and/or the diameter of the protrusion portion of the hub can be made smaller than that of the center hole of the disc substrate. Thus, the hub has a large degree of freedom of shape and can have a structure fitted to the shape of a turn table, while still providing a large adhesive surface between the hub and the disc substrate for strength.

摘要翻译： 信息记录盘包括在其一侧上具有记录层的盘基片，一个毂具有插入盘基片的中心孔的插入部分和在中心孔附近覆盖盘基片的凸缘部分， 所述插入部的至少顶点由磁性材料构成，所述毂插入所述中心孔，使得所述凸缘部位于所述盘基板的记录层侧，并且在所述凸缘部 和盘基片。 通过这种结构，轮毂的从盘基片的后表面突出的一部分面向转盘的主轴的尺寸可以改变，并且/或轮毂的突出部分的直径可以小于 圆盘基板的中心孔。 因此，毂具有较大的形状自由度，并且可以具有与转台的形状相配合的结构，同时在轮毂和盘基片之间仍然提供强大的粘合剂表面。

公开(公告)号：US5167996A

公开(公告)日：1992-12-01

申请号：US618605

申请日：1990-11-27

申请人： Masayoshi Kurisu ,  Suguru Tokita

发明人： Masayoshi Kurisu ,  Suguru Tokita

IPC分类号： G11B7/24 ,  G11B7/243 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/2538

CPC分类号： G11B7/24 ,  G11B7/2538 ,  G11B7/256 ,  G11B2007/24304 ,  G11B7/2533 ,  G11B7/2534 ,  Y10S428/913 ,  Y10S430/146

摘要： Improvement in an information recording medium comprising two transparent resin substrates combined with each other, at least one of which has a recording layer provided on the inner surface thereof, two hubs mounted over the center hole of said disc substrates on both sides thereof, each hub having a insertion portion to be inserted into said center hole and a flange portion to cover a portion of said disc substrate in the vicinity of said center hole, wherein a notch is provided on the peripheral surface of each hub, adhesive layers are formed at least in the notch, between the inner peripheral surface of the center hole and the outer peripheral surface of the insertion portion of said hubs and between the hubs and a specific photo-curable composition may be used for the adhesive layer.

公开(公告)号：US5019627A

公开(公告)日：1991-05-28

申请号：US449327

申请日：1989-12-11

申请人： Shiro Honma ,  Kenichi Tominari ,  Masayoshi Kurisu

发明人： Shiro Honma ,  Kenichi Tominari ,  Masayoshi Kurisu

IPC分类号： C08L23/02 ,  C08F2/00 ,  C08F2/38 ,  C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F4/654 ,  C08F8/00 ,  C08F10/00 ,  C08F10/02 ,  C08F110/02 ,  C08L23/00 ,  C08L23/06

CPC分类号： C08L23/06 ,  C08F10/02 ,  C08F110/02 ,  Y02P20/52

摘要： An injection-molding polyethylene composition consisting essentially of ultrahigh-molecular-weight polyethylene having a molecular weight of at least about 1,650,000 and low-molecular-weight to high-molecular-weight polyethylene having a molecular weight of, for example, about 1500 to about 360,000. This composition is produced by a multistep polymerization process comprising a step of producing the ultrahigh-molecular-weight polyethylene and a step of producing the low-molecular-weight or high-molecular-weight polyethylene.

摘要翻译： 一种注射成型聚乙烯组合物，其基本上由分子量为至少约1,650,000的超高分子量聚乙烯和低分子量至高分子量聚乙烯组成，分子量为例如约1500至约 360,000。 该组合物是通过包括生产超高分子量聚乙烯的步骤和制备低分子量或高分子量聚乙烯的步骤的多步骤聚合方法制备的。

公开(公告)号：US5300558A

公开(公告)日：1994-04-05

申请号：US863715

申请日：1992-04-03

申请人： Masayoshi Kurisu ,  Koji Utaka ,  Hajime Inagaki ,  Suguru Tokita ,  Kazuyuki Miyamoto ,  Yukari Hattori ,  Noriyuki Murakoshi ,  Tsutomu Saito

发明人： Masayoshi Kurisu ,  Koji Utaka ,  Hajime Inagaki ,  Suguru Tokita ,  Kazuyuki Miyamoto ,  Yukari Hattori ,  Noriyuki Murakoshi ,  Tsutomu Saito

IPC分类号： C09D4/00 ,  G11B7/243 ,  G11B7/253 ,  G11B7/2533 ,  G11B7/254 ,  G11B7/2542 ,  G11B7/257 ,  G11B7/258 ,  G11B7/2585 ,  G11B11/105 ,  C08K5/04 ,  C08K5/05 ,  C08K5/32 ,  C08K5/52

CPC分类号： C09D4/00 ,  G11B11/10584 ,  G11B7/252 ,  G11B7/2542 ,  G11B2007/24306 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B7/2533 ,  G11B7/256 ,  G11B7/2585

摘要： A curable resin composition comprising:(A) a compound having at least one curable acrylic radical, methacrylic radical or vinyl radial, or a mixture thereof;(B) an organic solvent containing an alcoholic organic solvent with an amount of not less than 40% by weight;(C) a compound having at least one pentavalent P with phosphoryl bonding; and(D) a polymerization initiator whichwhen coated on the surface of molded inorganic or organic materials, the coating shows superiority in curing under atmosphere and the cured composition has excellent adhesion, surface hardness, resistance to scratch, resistance to abrasion, surface luster, transparency and antistatic property.

摘要翻译： 一种可固化树脂组合物，其包含：（A）具有至少一个可固化的丙烯酸基，甲基丙烯酰基或乙烯基的化合物或其混合物; （B）含有不少于40重量％的醇有机溶剂的有机溶剂; （C）具有磷酸键合的至少一种五价P的化合物; 和（D）聚合引发剂，当涂覆在无机或有机材料的表面上时，该涂层在气氛下显示出优异的固化性，并且固化组合物具有优异的粘附性，表面硬度，耐刮擦性，耐磨性，表面光泽， 透明度和抗静电性。