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101. 发明授权

US06638675B2 Black magnetic toner 失效
标题翻译：黑色磁性墨粉
公开(公告)号：US06638675B2
公开(公告)日：2003-10-28
申请号：US10141959
申请日：2002-05-10
申请人： Kazuyuki Hayashi , Hiroko Morii , Yasuyuki Tanaka , Seiji Ishitani
发明人： Kazuyuki Hayashi , Hiroko Morii , Yasuyuki Tanaka , Seiji Ishitani
IPC分类号： G03G9083
CPC分类号： G03G9/083 , G03G9/0833 , G03G9/0836 , G03G9/0839 , G03G9/08773 , G03G9/0902 , G03G9/0904 , Y10S428/90 , Y10T428/2991 , Y10T428/2995 , Y10T428/2998
摘要： Black magnetic toner comprising: a binder resin, and black magnetic composite particles comprising: magnetic iron oxide particles having an average particle diameter of 0.055 to 0.95 &mgr;m; a coating layer formed on the surface of said magnetic iron oxide particles, comprising at least one organosilicon compound selected from the group consisting of: (1) organosilane compounds obtainable from alkoxysilane compounds, (2) polysiloxanes or modified polysiloxanes, and (3) fluoroalkyl organosilane compounds obtainable from fluoroalkylsilane compounds; and a carbon black coat formed on said coating layer comprising said organosilicon compound, in an amount of 1 to 25 parts by weight based on 100 parts by weight of said magnetic iron oxide particles. Such a black magnetic toner can be free from being deteriorated in electric resistance due to the existence of the carbon black coat, and as a result, is suitable as a high-resistance or insulated magnetic toner.
摘要翻译：黑色磁性调色剂，其包含：粘合剂树脂和黑色磁性复合颗粒，其包含平均粒径为0.055至0.95μm的磁性氧化铁颗粒;形成在所述磁性氧化铁颗粒的表面上的涂层，其包含至少一种有机硅化合物选自：（1）可从烷氧基硅烷化合物获得的有机硅烷化合物，（2）聚硅氧烷或改性聚硅氧烷，和（3）可从氟代烷基硅烷化合物获得的氟烷基有机硅烷化合物; 和在包含所述有机硅化合物的所述涂层上形成的炭黑涂层，其量为基于100重量份的所述磁性氧化铁颗粒为1至25重量份。这样的黑色磁性调色剂可以没有劣化的电由于存在炭黑涂层而导致的电阻，因此适合作为高电阻或绝缘磁性调色剂。

102. 发明授权

US06531211B1 Black plate-shaped ferrite composite particles with magnet oplumbite structure and magnetic recording medium using the same 失效
标题翻译：黑色板状铁氧体复合颗粒与磁铁石英结构和磁记录介质使用相同
公开(公告)号：US06531211B1
公开(公告)日：2003-03-11
申请号：US09577939
申请日：2000-05-25
申请人： Kazuyuki Hayashi , Hiroko Morii , Mamoru Kamigaki , Yasuyuki Tanaka , Keisuke Iwasaki
发明人： Kazuyuki Hayashi , Hiroko Morii , Mamoru Kamigaki , Yasuyuki Tanaka , Keisuke Iwasaki
IPC分类号： G11B5706
CPC分类号： G11B5/712 , Y10T428/25 , Y10T428/2982 , Y10T428/2991 , Y10T428/2993 , Y10T428/2995 , Y10T428/2998
摘要： Black plate-shaped ferrite composite particles with magnetoplumbite structure, particle size of 0.01 to 0.2 &mgr;m are surface coated with an organosilicon compound(s) and a carbon black coating is applied over the organosilicon coating layer. Optionally, a coating of silicon or aluminum oxide or hydroxide is provided on the surface of the black plate-shaped composite particles and below the organosilicon layer. The particles have a high blackness and when applied to a non-magnetic substrate with a binder resin to form a magnetic medium provide low light transmittance, low surface resistivity and a smooth surface.
摘要翻译：具有磁铅矿结构的黑色板状铁素体复合颗粒，粒径为0.01至0.2μm的表面涂覆有机硅化合物，并在有机硅涂层上施加炭黑涂层。任选地，在黑色板状复合颗粒的表面上和有机硅层下面提供硅或氧化铝或氢氧化物的涂层。颗粒具有高的黑度，并且当用粘合剂树脂施加到非磁性基材以形成磁性介质时，提供低的透光率，低的表面电阻率和光滑的表面。

103. 发明授权

US06511733B2 Magnetic recording medium containing specific non-magnetic composite particles of coated hematite particles 失效
标题翻译：磁记录介质含有特定的非磁性复合颗粒的涂覆赤铁矿颗粒
公开(公告)号：US06511733B2
公开(公告)日：2003-01-28
申请号：US09805374
申请日：2001-03-14
申请人： Kazuyuki Hayashi , Mamoru Kamigaki , Hiroko Morii
发明人： Kazuyuki Hayashi , Mamoru Kamigaki , Hiroko Morii
IPC分类号： B32B516
CPC分类号： G11B5/735 , Y10T428/24421 , Y10T428/254 , Y10T428/257 , Y10T428/265 , Y10T428/2991 , Y10T428/2995 , Y10T428/2998
摘要： A magnetic recording medium comprises: a non-magnetic base film; a magnetic recording layer formed on one surface of the non-magnetic base film, comprising a binder resin and magnetic particles; and a back coat layer formed on a surface opposite of the non-magnetic base film to the surface on which the magnetic recording layer is formed, comprising a binder resin and plate-shaped non-magnetic composite particles having an average plate surface diameter of 0.1 to 5.0 &mgr;m, an average thickness of 0.001 to 0.1 &mgr;m and a plate ratio (average plate surface diameter/average thickness) of 5:1 to 100:1, wherein the plate-shaped non-magnetic composite particles comprise: plate-shaped hematite particles as core particles; a coating layer formed on surface of said plate-shaped hematite particle, comprising at least one organosilicon compound selected from the group consisting of: (1) organosilane compounds obtained from an alkoxysilane compounds, and (2) polysiloxanes or modified polysiloxanes; and a carbon black coat formed on said coating layer comprising at least one organosilicon compound, in an amount of from more than 1 to 30 parts by weight based on 100 parts by weight of said plate-shaped hematite particles.
摘要翻译：磁记录介质包括：非磁性基膜;在非磁性基膜的一个表面上形成的磁记录层，包括粘合剂树脂和磁性颗粒; 和在与非磁性基膜相对的表面上形成的背涂层与形成有磁记录层的表面形成，包括粘合剂树脂和板状非磁性复合材料颗粒，其平均板表面直径为0.1至 5.0μm，平均厚度为0.001〜0.1μm，板比（平均板面直径/平均厚度）为5:1〜100:1，其中板状非磁性复合颗粒包括：板状赤铁矿颗粒作为核心颗粒; 所述板状赤铁矿颗粒的表面上形成的涂层包含至少一种选自以下的有机硅化合物：（1）由烷氧基硅烷化合物得到的有机硅烷化合物，和（2）聚硅氧烷或改性聚硅氧烷; 和基于100重量份的所述板状赤铁矿颗粒，在包含至少一种有机硅化合物的所述涂层上形成的炭黑涂层的量为大于1至30重量份。

104. 发明授权

US06475687B2 Magnetic composite particles for black magnetic toner and black magnetic toner using the same 失效
标题翻译：用于黑色磁性调色剂的磁性复合颗粒和使用其的黑色磁性调色剂
公开(公告)号：US06475687B2
公开(公告)日：2002-11-05
申请号：US09887512
申请日：2001-06-25
申请人： Kazuyuki Hayashi , Yusuke Shimohata , Keisuke Iwasaki , Hiroko Morii
发明人： Kazuyuki Hayashi , Yusuke Shimohata , Keisuke Iwasaki , Hiroko Morii
IPC分类号： G03G900
CPC分类号： G03G9/0835 , G03G9/0838 , G03G9/0839 , Y10T428/2995 , Y10T428/2998
摘要： Magnetic composite particles having an average particle diameter of 0.06 to 1.0 &mgr;m and a coercive force value of less than 39.790 kA/m, comprising: magnetic core particles, a coating formed on surface of said magnetic core particles, comprising at least one organosilicon compound selected from the group consisting of: (1) organosilane compounds obtainable from alkoxysilane compounds, and (2) polysiloxanes or modified polysiloxanes, and an organic blue-based pigment coat formed on said coating layer comprising said organosilicon compound, in an amount of from 1 to 50 parts by weight based on 100 parts by weight of said magnetic core particles. The magnetic composite particles are suitable for black magnetic toner not only exhibiting a deep black color but also having excellent light resistance and fluidity.
摘要翻译：平均粒径为0.06〜1.0μm，矫顽力值小于39.790kA / m的磁性复合颗粒包括：磁性核颗粒，形成在所述磁芯颗粒的表面上的涂层，其包含至少一种选自下列的有机硅化合物由（1）由烷氧基硅烷化合物得到的有机硅烷化合物和（2）聚硅氧烷或改性聚硅氧烷以及在所述包含所述有机硅化合物的涂层上形成的有机蓝基颜料涂层，其量为1〜 50重量份，基于100重量份的所述磁芯颗粒。磁性复合颗粒适用于黑色磁性调色剂，不仅表现出深黑色，而且具有优异的耐光性和流动性。

105. 发明授权

US06458452B1 Titanium oxide particles, substrate for magnetic recording medium and magnetic recording medium using the same 有权
标题翻译：氧化钛粒子，磁记录介质用基板及使用其的磁记录介质
公开(公告)号：US06458452B1
公开(公告)日：2002-10-01
申请号：US09465936
申请日：1999-12-17
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： G11B5733
CPC分类号： G11B5/738 , C01G23/047 , C01P2004/62 , C01P2006/12 , C01P2006/80 , C09C1/3661 , Y10S428/90 , Y10T428/25 , Y10T428/256 , Y10T428/257 , Y10T428/265 , Y10T428/2982 , Y10T428/2991
摘要： The present invention relates to titanium oxide particles having an average particle size of not more than 0.3 &mgr;m, and a BET specific surface area of 15 to 200 m2/g, containing a soluble sodium salt of not more than 230 ppm, calculated as Na, and a soluble sulfate of not more than 150 ppm, calculated as SO4, and having a pH value of not less than 8. The titanium oxide particles of the present invention are suitable as non-magnetic particles for a non-magnetic undercoat layer of a magnetic recording medium which uses magnetic particles containing iron as a main ingredient, and even more particularly, are suitable as non-magnetic particles for a non-magnetic undercoat layer of a magnetic recording medium which uses magnetic particles containing iron as a main ingredient, show an excellent dispersibility in a binder resin, contain only a small amount of soluble sodium salt and soluble sulfate, and have a pH value of not less than 8.
摘要翻译：本发明涉及平均粒径不大于0.3μm，BET比表面积为15-200m2 / g的氧化钛颗粒，其含有以Na计算的不大于230ppm的可溶性钠盐，和不超过150ppm的可溶性硫酸盐，以SO 4计算，pH值不小于8.本发明的氧化钛颗粒适合作为非磁性颗粒用于非磁性底涂层使用以铁为主成分的磁性粒子的磁记录介质，更具体地说，适合作为使用以铁为主要成分的磁性粒子的磁记录介质的非磁性底涂层的非磁性粒子，在粘合剂树脂中具有优异的分散性，仅含有少量的可溶性钠盐和可溶性硫酸盐，并且具有不小于8的pH值。

106. 发明授权

US06416864B1 Black magnetic composite particles for a black magnetic toner 失效
标题翻译：用于黑色磁性调色剂的黑色磁性复合颗粒
公开(公告)号：US06416864B1
公开(公告)日：2002-07-09
申请号：US09541725
申请日：2000-04-03
申请人： Kazuyuki Hayashi , Hiroko Morii , Yasuyuki Tanaka , Seiji Ishitani
发明人： Kazuyuki Hayashi , Hiroko Morii , Yasuyuki Tanaka , Seiji Ishitani
IPC分类号： B32B516
CPC分类号： G03G9/083 , G03G9/0833 , G03G9/0836 , G03G9/0839 , G03G9/08773 , G03G9/0902 , G03G9/0904 , Y10S428/90 , Y10T428/2991 , Y10T428/2995 , Y10T428/2998
摘要： Black magnetic toner comprising: a binder resin, and black magnetic composite particles comprising: magnetic iron oxide particles having an average particle diameter of 0.055 to 0.95 &mgr;m; a coating layer formed on the surface of said magnetic iron oxide particles, comprising at least one organosilicon compound selected from the group consisting of: (1) organosilane compounds obtainable from alkoxysilane compounds, (2) polysiloxanes or modified polysiloxanes, and (3) fluoroalkyl organosilane compounds obtainable from fluoroalkylsilane compounds; and a carbon black coat formed on said coating layer comprising said organosilicon compound, in an amount of 1 to 25 parts by weight based on 100 parts by weight of said magnetic iron oxide particles. Such a black magnetic toner can be free from being deteriorated in electric resistance due to the existence of the carbon black coat, and as a result, is suitable as a high-resistance or insulated magnetic toner.
摘要翻译：黑色磁性调色剂，其包含：粘合剂树脂和黑色磁性复合颗粒，其包含平均粒径为0.055至0.95μm的磁性氧化铁颗粒;形成在所述磁性氧化铁颗粒的表面上的涂层，其包含至少一种有机硅化合物选自：（1）可从烷氧基硅烷化合物获得的有机硅烷化合物，（2）聚硅氧烷或改性聚硅氧烷，和（3）可从氟代烷基硅烷化合物获得的氟烷基有机硅烷化合物; 和在包含所述有机硅化合物的所述涂层上形成的炭黑涂层，其量为基于100重量份的所述磁性氧化铁颗粒为1至25重量份。这样的黑色磁性调色剂可以没有劣化的电由于存在炭黑涂层而导致的电阻，因此适合作为高电阻或绝缘磁性调色剂。

107. 发明授权

US06294242B1 Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US06294242B1
公开(公告)日：2001-09-25
申请号：US09557631
申请日：2000-04-21
申请人： Kazuyuki Hayashi , Hiroko Morii , Mamoru Kamigaki , Yasuyuki Tanaka , Keisuke Iwasaki
发明人： Kazuyuki Hayashi , Hiroko Morii , Mamoru Kamigaki , Yasuyuki Tanaka , Keisuke Iwasaki
IPC分类号： G11B5706
CPC分类号： B82Y30/00 , C01P2004/03 , C01P2004/10 , C01P2004/50 , C01P2004/54 , C01P2004/62 , C01P2004/64 , C01P2004/80 , C01P2004/82 , C01P2004/84 , C01P2006/12 , C01P2006/40 , C01P2006/42 , C01P2006/60 , C01P2006/62 , C01P2006/80 , C09C3/006 , C09C3/12 , G11B5/712 , Y10S428/90 , Y10T428/256 , Y10T428/257 , Y10T428/2991 , Y10T428/2993 , Y10T428/2995 , Y10T428/31663
摘要： A magnetic recording medium of the present invention comprises: a non-magnetic base film; and a magnetic recording layer comprising a binder resin and black magnetic acicular composite particles having an average particle diameter of 0.051 to 0.72 &mgr;m, comprising: magnetic acicular core particles; a coating formed on surface of said magnetic acicular core particles, comprising at least one organosilicon compound selected from the group consisting of: (1) organosilane compounds obtainable from alkoxysilane compounds, (2) polysiloxanes or modified polysiloxanes, and (3) fluoroalkyl organosilane compounds obtainable from fluoroalkylsilane compounds; and a carbon black coat formed on said coating layer comprising said organosilicon compound, in an amount of 0.5 to 10 parts by weight based on 100 parts by weight of said magnetic acicular particles. Such a magnetic recording medium capable of not only showing a low light transmittance and a low surface resistivity even when the amount of carbon black fine particles added to a magnetic recording layer thereof is as small as possible, but also having a smooth surface.
摘要翻译：本发明的磁记录介质包括：非磁性基膜; 以及包含粘结剂树脂和平均粒径为0.051〜0.72μm的黑色磁性针状复合粒子的磁记录层，其特征在于，包括：针状核心粒子; 包含至少一种有机硅化合物，所述有机硅化合物选自：（1）由烷氧基硅烷化合物得到的有机硅烷化合物，（2）聚硅氧烷或改性聚硅氧烷，和（3）氟代烷基有机硅烷化合物可从氟代烷基硅烷化合物获得; 以及基于100重量份的所述磁性针状颗粒，在包含所述有机硅化合物的所述涂层上形成的炭黑涂层，其量为0.5至10重量份。这样的磁记录介质不仅可以显示低光即使当添加到其磁记录层中的炭黑细颗粒的量尽可能小时，也具有平滑的表面时，透光率和低的表面电阻率。

108. 发明授权

US06248437B1 Magnetic recording medium containing non-magnetic hematite particles as an undercoat layer 有权
标题翻译：含有非磁性赤铁矿颗粒作为底涂层的磁记录介质
公开(公告)号：US06248437B1
公开(公告)日：2001-06-19
申请号：US09577334
申请日：2000-05-23
申请人： Kazuyuki Hayashi , Keisuke Iwasaki , Hiroko Morii , Yasuyuki Tanaka
发明人： Kazuyuki Hayashi , Keisuke Iwasaki , Hiroko Morii , Yasuyuki Tanaka
IPC分类号： B32B516
CPC分类号： B82Y30/00 , C01G49/06 , C01P2002/52 , C01P2004/10 , C01P2004/54 , C01P2004/62 , C01P2004/64 , C01P2006/12 , C01P2006/22 , C01P2006/42 , G11B5/738 , Y10S428/90 , Y10T428/256 , Y10T428/257 , Y10T428/2982 , Y10T428/2991
摘要： The present invention relates to acicular hematite particles containing aluminum of 0.05 to 50% by weight, calculated as Al, having an average major axial diameter of not more than 0.3 &mgr;m and a pH value of the particles of not less than 8, and containing soluble sodium salts of not more than 300 ppm soluble sodium, calculated as Na, and soluble sulfates of not more than 150 ppm soluble sulfate, calculated as SO4, which have an excellent dispersibility in a binder resin, and a magnetic recording medium which uses the hematite particles as non-magnetic particles for a non-magnetic undercoat layer, which has small light transmittance, smooth surface, high strength and high durability, and which is capable of suppressing the deterioration in the magnetic properties caused by a corrosion of the magnetic particles containing as a main ingredient in the magnetic recording layer.
摘要翻译：本发明涉及铝的0.05〜50重量％的针状赤铁矿颗粒，Al计算，平均主轴径不大于0.3μm，颗粒的pH值不小于8，并含有可溶性以Na计算的不超过300ppm的可溶性钠的钠盐和在粘合剂树脂中具有优异分散性的以SO 4计算的不超过150ppm可溶性硫酸盐的可溶性硫酸盐和使用赤铁矿的磁记录介质颗粒作为非磁性底涂层的非磁性颗粒，其具有小的透光率，光滑的表面，高强度和高耐久性，并且能够抑制由含有作为磁记录层中的主要成分。

109. 发明授权

US06207279B1 High-density acicular hematite particles, non-magnetic undercoat layer and magnetic recording medium 失效
标题翻译：高密度针状赤铁矿颗粒，非磁性底涂层和磁记录介质
公开(公告)号：US06207279B1
公开(公告)日：2001-03-27
申请号：US09048179
申请日：1998-03-26
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： B32B1502
CPC分类号： B82Y30/00 , C01G49/06 , C01P2004/10 , C01P2004/54 , C01P2004/62 , C01P2004/64 , C01P2004/84 , C01P2006/12 , C01P2006/22 , C01P2006/40 , C01P2006/42 , C01P2006/80 , G11B5/708 , G11B5/738 , Y10T428/24355 , Y10T428/257 , Y10T428/265 , Y10T428/2991
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.
摘要翻译：高密度针状赤铁矿颗粒包括针状赤铁矿颗粒和在所述针状赤铁矿颗粒的至少一部分表面上形成的包含锡或锡和氧化物的氧化物的涂层; 平均主轴径不大于0.3μm，pH值不小于8，可溶性钠盐含量不超过300ppm，以Na计算，可溶性硫酸盐含量不大于150ppm，以SO4计算。这种高密度针状赤铁矿颗粒适用于使用以铁为主要成分的磁性颗粒的磁记录介质的非磁性底涂层的非磁性颗粒，在车辆中具有优异的分散性和低体积电阻率。

110. 发明授权

US06207253B1 Acicular hematite particles and magnetic recording medium 有权
标题翻译：针状赤铁矿颗粒和磁记录介质
公开(公告)号：US06207253B1
公开(公告)日：2001-03-27
申请号：US09220356
申请日：1998-12-24
申请人： Kazuyuki Hayashi , Yasuyuki Tanaka , Keisuke Iwasaki , Hiroko Morii
发明人： Kazuyuki Hayashi , Yasuyuki Tanaka , Keisuke Iwasaki , Hiroko Morii
IPC分类号： B32B516
CPC分类号： B82Y30/00 , C01G49/06 , C01P2004/04 , C01P2004/10 , C01P2004/39 , C01P2004/50 , C01P2004/51 , C01P2004/54 , C01P2004/61 , C01P2004/62 , C01P2004/64 , C01P2004/86 , C01P2006/12 , C01P2006/22 , C01P2006/42 , C01P2006/80 , C09C1/24 , G11B5/733 , G11B5/738 , Y10T428/256 , Y10T428/257 , Y10T428/259 , Y10T428/2991 , Y10T428/2993
摘要： Acicular hematite particles of the present invention comprise an average major axis diameter of 0.004 to 0.295 &mgr;m, a geometrical standard deviation of minor axis diameter of not more than 1.35 and a pH value of not less than 8, and containing not more than 300 ppm of soluble sodium salt, calculated as Na and not more than 150 ppm of soluble sulfate, calculated as SO4. Such acicular hematite particles are suitable as non-magnetic particles for a non-magnetic undercoat layer of a magnetic recording medium which exhibits a low light transmittance, an excellent smooth surface and a high strength, and can be prevented from being deteriorated in magnetic properties due to the corrosion of magnetic acicular metal particles containing iron as a main component which are dispersed in a magnetic recording layer thereof.
摘要翻译：本发明的针状赤铁矿颗粒包括平均长轴直径为0.004至0.295μm，短轴直径的几何标准偏差不大于1.35，pH值不小于8，并且包含不大于300ppm的可溶性钠盐，以Na计，不超过150ppm的可溶性硫酸盐，以SO4计算。这种针状赤铁矿颗粒适合作为磁性记录介质的非磁性底涂层的非磁性颗粒，其表现出低的透光率，具有优异的光滑表面和高强度，并且可以防止由于分散在其磁记录层中的以铁为主要成分的磁针状金属颗粒的腐蚀而导致的磁特性劣化。

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