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11. 发明授权

US06432377B1 Particles for non-magnetic undercoat layer of magnetic recording medium, method thereof and magnetic recording medium 有权
公开(公告)号：US06432377B1
公开(公告)日：2002-08-13
申请号：US09933074
申请日：2001-08-21
申请人： Kazuyuki Hayashi , Keisuke Iwasaki , Hiroko Morii
发明人： Kazuyuki Hayashi , Keisuke Iwasaki , Hiroko Morii
IPC分类号： C01G4902
CPC分类号： B82Y30/00 , C01G49/06 , C01P2004/03 , C01P2004/10 , C01P2004/20 , C01P2004/51 , C01P2004/54 , C01P2004/62 , C01P2004/64 , C01P2004/82 , C01P2006/10 , C01P2006/12 , C01P2006/42 , C01P2006/80 , C09C1/24 , G11B5/733 , G11B5/738 , Y10S428/90 , Y10T428/25 , Y10T428/2982
摘要： The present invention provides particles for a non-magnetic undercoat layer of a magnetic recording medium, which comprises acicular hematite particles having an average major axial diameter of not more than 0.3 &mgr;m, a geometrical standard deviation in the major axial diameter of not more than 1.50 and a BET specific surface area of not less than 40 m2/g, and containing a total amount of sodium of not more than 50 ppm calculated as Na. The acicular hematite particles have an excellent dispersibility in a vehicle so that a non-magnetic undercoat layer containing the particles is excellent in surface smoothness and strength. A magnetic recording medium using the non-magnetic undercoat layer is excellent not only in electromagnetic performance, but in storage stability.

12. 发明授权

US06299973B1 Acicular hematite particles having a low sodium content and their use in a magnetic recording medium 有权
标题翻译：具有低钠含量的针状赤铁矿颗粒及其在磁记录介质中的用途
公开(公告)号：US06299973B1
公开(公告)日：2001-10-09
申请号：US09420008
申请日：1999-10-18
申请人： Kazuyuki Hayashi , Keisuke Iwasaki , Hiroko Morii
发明人： Kazuyuki Hayashi , Keisuke Iwasaki , Hiroko Morii
IPC分类号： G11B5738
CPC分类号： B82Y30/00 , C01G49/06 , C01P2004/03 , C01P2004/10 , C01P2004/20 , C01P2004/51 , C01P2004/54 , C01P2004/62 , C01P2004/64 , C01P2004/82 , C01P2006/10 , C01P2006/12 , C01P2006/42 , C01P2006/80 , C09C1/24 , G11B5/733 , G11B5/738 , Y10S428/90 , Y10T428/25 , Y10T428/2982
摘要： The present invention provides particles for a non-magnetic undercoat layer of a magnetic recording medium, which comprises particular hematite particles having an average major axial diameter of not more than 0.3 &mgr;m, a geometrical standard deviation in the major axial diameter of not more than 1.50 and a BET specific surface area of not less than 40 m2/g, and containing a total amount of sodium of not more than 50 ppm calculated as Na. The particular hematite particles have an excellent dispersibility in a vehicle so that a non-magnetic undercoat layer containing the particles is excellent in surface smoothness and strength. A magnetic recording medium using the non-magnetic undercoat layer is excellent not only in electromagnetic performance, but in storage stability.
摘要翻译：本发明提供一种磁记录介质的非磁性底涂层用颗粒，其包含平均主轴向直径不大于0.3μm的特定赤铁矿颗粒，主轴向直径的几何标准偏差不大于1.50 BET比表面积不小于40m2 / g，并且含有以Na计算的不超过50ppm的钠的总量。特定的赤铁矿颗粒在车辆中具有优异的分散性，使得含有该颗粒的非磁性底涂层的表面平滑度和强度是优异的。使用非磁性底涂层的磁记录介质不仅在电磁性能方面优异，而且在储存稳定性方面是优异的。

13. 发明授权

US6063490A Magnetic recording medium comprising non-magnetic acicular particles containing mainly iron and having titanium dispersed therein 失效
标题翻译：磁记录介质，其包含主要含铁并且分散有钛的非磁性针状颗粒
公开(公告)号：US6063490A
公开(公告)日：2000-05-16
申请号：US132759
申请日：1998-08-12
申请人： Kazuyuki Hayashi , Keisuke Iwasaki , Toshiharu Harada , Hiroko Morii
发明人： Kazuyuki Hayashi , Keisuke Iwasaki , Toshiharu Harada , Hiroko Morii
IPC分类号： C09C1/24 , G11B5/708 , G11B5/738 , B32B5/16 , G11B5/58
CPC分类号： B82Y30/00 , C09C1/24 , G11B5/708 , G11B5/738 , C01P2004/03 , C01P2004/10 , C01P2004/20 , C01P2004/38 , C01P2004/51 , C01P2004/54 , C01P2004/62 , C01P2004/64 , C01P2004/84 , C01P2004/86 , C01P2006/10 , C01P2006/12 , C01P2006/22 , C01P2006/42 , C01P2006/60 , C01P2006/90 , Y10T428/256 , Y10T428/257 , Y10T428/259 , Y10T428/2991 , Y10T428/2993
摘要： A magnetic recording medium of the present invention comprises: a base film; a non-magnetic undercoat layer formed on said base film and comprising a binder resin and non-magnetic acicular particles containing iron as a main component, comprising iron and titanium of 0.05 to 50% by weight, calculated as Ti, based on the total weight of the particles, which is present within the particle; and a magnetic recording layer formed on said non-magnetic undercoat layer and comprising magnetic particles and a binder resin. Such a magnetic recording medium has a low light transmittance, an excellent smooth surface, a high mechanical strength and an excellent durability.
摘要翻译：本发明的磁记录介质包括：基膜; 形成在所述基底膜上的非磁性底涂层，其包含粘合剂树脂和以铁为主要成分的非磁性针状颗粒，所述非磁性针状颗粒包含以Ti计算的0.05至50重量％的铁和钛，基于总重量存在于颗粒内的颗粒; 以及形成在所述非磁性底涂层上并包含磁性颗粒和粘合剂树脂的磁记录层。这种磁记录介质具有低的透光率，优异的光滑表面，高的机械强度和优异的耐久性。

14. 发明授权

US5830557A Non-magnetic undercoating layer for magnetic recording medium, magnetic recording medium and non-magnetic particles 失效
标题翻译：用于磁记录介质的非磁性底涂层，磁记录介质和非磁性颗粒
公开(公告)号：US5830557A
公开(公告)日：1998-11-03
申请号：US392199
申请日：1995-02-22
申请人： Kazuyuki Hayashi , Keisuke Iwasaki , Yasuyuki Tanaka , Minoru Ohsugi , Hiroko Morii , Mineko Sakoda , Norio Sugita , Masaaki Maekawa
发明人： Kazuyuki Hayashi , Keisuke Iwasaki , Yasuyuki Tanaka , Minoru Ohsugi , Hiroko Morii , Mineko Sakoda , Norio Sugita , Masaaki Maekawa
IPC分类号： G11B5/733 , G11B5/738 , G11B5/66 , G11B5/70
CPC分类号： G11B5/738 , G11B5/733 , Y10S428/90 , Y10T428/24372 , Y10T428/2438 , Y10T428/24388 , Y10T428/265 , Y10T428/2991 , Y10T428/2993 , Y10T428/2995
摘要： The disclosure describes a non-magnetic undercoating layer for a magnetic recording medium, coated on the surface of a non-magnetic substrate comprising: non-magnetic particles selected from the group consisting of particles (1) and (2): (1) coated acicular or spindle-shaped .alpha.-Fe.sub.2 O.sub.3 particles which are produced by adhering not less than 0.01 to 20 wt % (calculated as Al, SiO.sub.2 or Al and SiO.sub.2, and based on acicular or spindle-shaped .alpha.-Fe.sub.2 O.sub.3 particles as a core material) of an oxide or a hydroxide containing Al, Si or both Al and Si to the surfaces of acicular or spindle-shaped .alpha.-Fe.sub.2 O.sub.3 particles as a core material, and have a molecular weight-dependent parameter .alpha. represented by the following formula of not less than 0.5: As=K.sub.1 .multidot.M.sup..alpha. wherein M represents the number-average molecular weight of a binder resin, As represents the saturation adsorption of said binder resin, and K.sub.1 represents a constant used for measuring As and dependent on the binder resin and a solvent, (2) BaO.multidot.4.5Fe.sub.2 O.sub.3 particles having an average particle diameter of not more than 0.1 .mu.m; and a binder resin.
摘要翻译：本发明描述了一种涂覆在非磁性基材表面上的用于磁记录介质的非磁性底涂层，包括：选自颗粒（1）和（2）的非磁性颗粒：（1）涂覆通过粘附不小于0.01至20重量％（以Al，SiO 2或Al和SiO 2计算，并以针状或纺锤形α-Fe2O3颗粒为核心材料）制备的针状或纺锤状α-Fe2O3颗粒，含有Al，Si或Al和Si的氧化物或氢氧化物作为核心材料的针状或纺锤形α-Fe2O3颗粒的表面，并且具有不低于下列公式的分子量依赖参数α 比0.5：As =K1xMα其中M表示粘合剂树脂的数均分子量，As表示所述粘合剂树脂的饱和吸附，K1表示用于测量As的常数，并且取决于粘合剂树脂和溶剂，（ 2）平均粒径不大于0.1μm的BaO x 4.5 Fe 2 O 3粒子; 和粘合剂树脂。

15. 发明授权

US07094814B2 Coloring composition for color filter containing colorant and color filter using the same 有权
标题翻译：含有着色剂的滤色器的着色组合物和使用其的滤色器
公开(公告)号：US07094814B2
公开(公告)日：2006-08-22
申请号：US10253906
申请日：2002-09-25
申请人： Hiroko Morii , Keisuke Iwasaki , Kazuyuki Hayashi
发明人： Hiroko Morii , Keisuke Iwasaki , Kazuyuki Hayashi
IPC分类号： C08K3/20 , C08K9/00
CPC分类号： B82Y30/00 , C01P2004/01 , C01P2004/03 , C01P2004/10 , C01P2004/20 , C01P2004/30 , C01P2004/32 , C01P2004/50 , C01P2004/51 , C01P2004/61 , C01P2004/62 , C01P2004/64 , C01P2004/82 , C01P2004/84 , C01P2006/12 , C01P2006/60 , C01P2006/62 , C01P2006/63 , C01P2006/64 , C01P2006/65 , C01P2006/66 , C01P2006/80 , C08F292/00 , C09C1/027 , C09C1/309 , C09C1/3692 , C09C1/407 , C09C3/006 , C09C3/12 , C09D11/32 , G02B5/201 , Y10T428/2998
摘要： A coloring composition for a color filter composed of composite particles having an average particle diameter of 0.00 1 to 1.0 μm, and containing white inorganic particles, a glue coating layer formed on the surface of the white inorganic particle and an organic pigment coat formed on the glue. A dispersant, binder resin, monomer as a reactive diluent, a polymerization initiator and a solvent are also present. The colorant provides not only a sharp particle size distribution but also excellent light resistance.
摘要翻译：一种由平均粒径为0.001-0.0μm的复合颗粒组成并含有白色无机颗粒的滤色剂着色组合物，形成在白色无机颗粒表面上的胶衣层和形成在该白色无机颗粒表面上的有机颜料涂层胶。还存在分散剂，粘合剂树脂，作为反应性稀释剂的单体，聚合引发剂和溶剂。着色剂不仅提供了尖锐的粒度分布，而且具有优异的耐光性。

16. 发明授权

US06838218B2 Black toner 失效
标题翻译：黑色墨粉
公开(公告)号：US06838218B2
公开(公告)日：2005-01-04
申请号：US10162702
申请日：2002-06-06
申请人： Kazuyuki Hayashi , Hiroko Morii , Keisuke Iwasaki
发明人： Kazuyuki Hayashi , Hiroko Morii , Keisuke Iwasaki
IPC分类号： C09C1/00 , C09C3/06 , C09C3/12 , G03G9/08 , G03G9/087 , G03G9/09 , G03G9/00
CPC分类号： G03G9/0904 , G03G9/0825
摘要： A black toner comprises a binder resin and black composite particles having an average particle diameter of 0.005 to 0.30 μm, and comprising: extender pigments as core particles; a gluing agent-coating layer formed on surface of the respective core particles; and a black pigment coat uniformly formed on the gluing agent-coating layer in an amount of 1 to 500 parts by weight based on 100 parts by weight of the extender pigments. Such a black toner using black composite particles having not only excellent blackness, fluidity and light resistance, but also an excellent dispersibility in binder resins, which toner also exhibits excellent blackness, fluidity and light resistance.
摘要翻译：黑色调色剂包括粘合剂树脂和平均粒径为0.005至0.30μm的黑色复合颗粒，并且包含：作为核心颗粒的增量颜料; 形成在各个核心颗粒的表面上的胶粘剂涂层; 和基于100重量份的增量颜料，以1-500重量份的量均匀地形成在胶粘剂涂层上的黑色颜料涂层。这种使用黑色复合颗粒的黑色调色剂不仅具有优异的黑色度，流动性和耐光性，而且在粘合剂树脂中也具有优异的分散性，该调色剂也表现出优异的黑色，流动性和耐光性。

17. 发明授权

US06803104B2 Magnetic recording medium, non-magnetic acicular black iron-based composite particles and process for producing the particles 失效
标题翻译：磁记录介质，非磁性针状黑铁基复合颗粒及其制备方法
公开(公告)号：US06803104B2
公开(公告)日：2004-10-12
申请号：US10055809
申请日：2002-01-28
申请人： Kazuyuki Hayashi , Keisuke Iwasaki , Yasuyuki Tanaka , Hiroko Morii
发明人： Kazuyuki Hayashi , Keisuke Iwasaki , Yasuyuki Tanaka , Hiroko Morii
IPC分类号： G11B5738
CPC分类号： B82Y30/00 , C01P2004/03 , C01P2004/04 , C01P2004/10 , C01P2004/20 , C01P2004/32 , C01P2004/38 , C01P2004/50 , C01P2004/51 , C01P2004/54 , C01P2004/62 , C01P2004/64 , C01P2004/80 , C01P2004/82 , C01P2004/84 , C01P2004/86 , C01P2006/12 , C01P2006/19 , C01P2006/22 , C01P2006/40 , C01P2006/42 , C01P2006/60 , C01P2006/62 , C01P2006/80 , C01P2006/90 , C09C1/24 , G11B5/738 , Y10T428/2993 , Y10T428/2995 , Y10T428/2998
摘要： A magnetic recording medium composed of a non-magnetic base film; a non-magnetic undercoat layer formed on the non-magnetic base film, including a binder resin and non-magnetic acicular black iron-based composite particles; and a magnetic coating film comprising a binder resin and magnetic particles. The non-magnetic acicular black iron-based composite particles having an average major axis diameter of about 0.011 to 0.35 &mgr;m, and are composed of acicular hematite particles or acicular iron oxide hydroxide particles (as core particles) having an average major axis diameter of 0.01 to 0.3 &mgr;m; a coating layer formed on the surface of the core particles of a specific organosilicon compound; and a single carbon black coat formed on the coating layer in an amount of 21 to 50 parts by weight based on 100 parts by weight of the core particles.
摘要翻译：由非磁性基膜构成的磁记录介质; 形成在非磁性基膜上的非磁性底涂层，包括粘合剂树脂和非磁性针状黑铁基复合颗粒; 以及包含粘合剂树脂和磁性颗粒的磁性涂膜。平均长轴直径为0.011〜0.35μm的非磁性针状黑铁系复合体颗粒，由针状赤铁矿颗粒或针状铁氧化物氢氧化物颗粒（核心颗粒）构成，其平均长轴直径为0.01 至0.3毫米形成在特定有机硅化合物的芯颗粒的表面上的涂层; 和基于100重量份的芯颗粒，在涂层上形成的单一炭黑涂层的量为21至50重量份。

18. 发明授权

US06737211B2 Color toner 失效
标题翻译：彩色墨粉
公开(公告)号：US06737211B2
公开(公告)日：2004-05-18
申请号：US10131501
申请日：2002-04-25
申请人： Kazuyuki Hayashi , Keisuke Iwasaki , Hiroko Morii
发明人： Kazuyuki Hayashi , Keisuke Iwasaki , Hiroko Morii
IPC分类号： G03G909
CPC分类号： G03G9/09708 , G03G9/08773 , G03G9/09 , G03G9/097 , G03G9/09716 , G03G9/09725 , G03G9/09783
摘要： A color toner comprises: a binder resin, and a colorant having an average particle diameter of 0.005 to 0.30 &mgr;m, comprising: extender pigments, a gluing agent-coating layer formed on surface of the extender pigment, and an organic pigment coat formed onto the gluing agent-coating layer in an amount of 1 to 500 parts by weight based on 100 parts by weight of the extender pigments. The color toner exhibits not only a clear hue, but also excellent fluidity and dispersibility of colorants.
摘要翻译：彩色调色剂包括：粘合剂树脂和平均粒径为0.005至0.30μm的着色剂，包括：增量颜料，形成在增量颜料表面上的胶粘剂涂层和形成在胶粘剂上的有机颜料涂层涂料层的量为1〜500重量份，基于100重量份的增量颜料。彩色调色剂不仅具有清晰的色调，而且表现出优异的着色剂的流动性和分散性。

19. 发明授权

US06723456B2 Hematite particles aggregates, non-magnetic undercoatt layer for magnetic recording medium using the same, and magnetic recording medium having the non-magnetic undercoat layer 失效
标题翻译：赤铁矿颗粒聚集，使用其的磁记录介质的非磁性底层，以及具有非磁性底涂层
公开(公告)号：US06723456B2
公开(公告)日：2004-04-20
申请号：US10022818
申请日：2001-12-20
申请人： Kazuyuki Hayashi , Keisuke Iwasaki , Seiji Ishitani , Hiroko Morii
发明人： Kazuyuki Hayashi , Keisuke Iwasaki , Seiji Ishitani , Hiroko Morii
IPC分类号： B32B516
CPC分类号： G11B5/738 , G11B5/733 , Y10T428/256
摘要： Hematite particles aggregates as non-magnetic particles of the present invention are capable of forming a non-magnetic undercoat layer of a magnetic recording medium having a more excellent surface smoothness, which can exhibit not only an excellent dispersibility but also have an improving ability of a surface smoothness of a coating film produced therefrom by calendering treatment, a non-magnetic undercoat layer for magnetic recording medium which contains the hematite particles aggregates is exhibits a more excellent surface smoothness, and a magnetic recording medium having the non-magnetic undercoat layer, is exhibits a more excellent surface smoothness.
摘要翻译：作为本发明的非磁性粒子的赤铁矿颗粒聚集体能够形成具有更优异的表面平滑性的磁记录介质的非磁性底涂层，其不仅具有优异的分散性，而且还具有改善的通过压延处理制成的涂膜的表面光滑度，含有赤铁矿颗粒聚集体的磁记录介质的非磁性底涂层表现出更优异的表面平滑度，并且具有非磁性底涂层的磁记录介质是表现出更优异的表面平滑度。

20. 发明授权

US06432508B1 High-density acicular hematite particles, non-magnetic undercoat layer and magnetic recording medium 有权
公开(公告)号：US06432508B1
公开(公告)日：2002-08-13
申请号：US09758342
申请日：2001-01-12
申请人： Kazuyuki Hayashi , Keisuke Iwasaki , Yasuyuki Tanaka , Hiroko Morii
发明人： Kazuyuki Hayashi , Keisuke Iwasaki , Yasuyuki Tanaka , Hiroko Morii
IPC分类号： G11B5738
摘要： High-density acicular hematite particles comprise acicular hematite particles and a coat comprising an oxide of tin or oxides of tin and antimony, formed on at least a part of surfaces of said acicular hematite particles; and have an average major axial diameter of not more than 0.3 &mgr;m, a pH value of not less than 8, a soluble sodium salt content of not more than 300 ppm, calculated as Na, and a soluble sulfate content of not more than 150 ppm, calculated as SO4. Such high-density acicular hematite particles is suitable as non-magnetic particles for a non-magnetic undercoat layer of a magnetic recording medium using magnetic particles containing iron as a main ingredient, have an excellent dispersibility in vehicle and a low volume resistivity.

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