公开(公告)号：US07572505B2

公开(公告)日：2009-08-11

申请号：US11785737

申请日：2007-04-19

申请人： Naoki Uchida ,  Ryo Iwai ,  Mamoru Kamigaki ,  Shinji Uemoto ,  Koso Aoki ,  Hiromitsu Misawa

发明人： Naoki Uchida ,  Ryo Iwai ,  Mamoru Kamigaki ,  Shinji Uemoto ,  Koso Aoki ,  Hiromitsu Misawa

IPC分类号： B32B5/16

CPC分类号： H01F1/36 ,  C01G49/08 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/42 ,  C08K3/22 ,  C08K9/02 ,  C09C1/24 ,  C09D7/62 ,  C09D7/68 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0836 ,  G03G9/0837 ,  G03G9/0838 ,  G03G9/107 ,  Y10S428/90 ,  Y10T428/257 ,  Y10T428/2991 ,  Y10T428/2993

摘要： The present invention relates to black magnetic iron oxide particles comprising core particles and a surface layer formed on a surface of the respective core particles which is made of a compound of at least one alkali earth metal element selected from the group consisting of Mg, Ca, Sr and Ba and an aluminum element, in which a content of the at least one alkali earth metal element present in the surface layer is from 100 ppm to 1000 ppm on the basis of a whole weight of the black magnetic iron oxide particles; a content of the aluminum element present in the surface layer is from 1000 ppm to 20000 ppm on the basis of a whole weight of the black magnetic iron oxide particles; a ratio [A/B] of the content [A (ppm)] of the aluminum element to the content [B (ppm)] of the at least one alkali earth metal element present in the surface layer is from 1 to 100; and a molded product comprising said black magnetic iron oxide particles has a breakdown voltage of not less than 400 V/cm.

摘要翻译： 本发明涉及包含核心颗粒的黑色磁性氧化铁颗粒和形成在各个芯颗粒的表面上的表面层，该表面层由选自Mg，Ca， Sr和Ba以及基于黑色磁性氧化铁颗粒的总重量，表面层中存在的至少一种碱土金属元素的含量为100ppm至1000ppm的铝元素; 基于黑色磁性氧化铁颗粒的总重量，表面层中存在的铝元素的含量为1000ppm至20000ppm; 铝元素的含量[A（ppm）]与表面层中的至少一种碱土类金属元素的含量[B（ppm）]的比[A / B]为1〜100， 并且包含所述黑色磁性氧化铁颗粒的成型体具有不低于400V / cm的击穿电压。

公开(公告)号：US06844067B2

公开(公告)日：2005-01-18

申请号：US10686776

申请日：2003-10-17

申请人： Nobuya Shimo ,  Koso Aoki ,  Hiromitsu Sakurai ,  Shinji Uemoto

发明人： Nobuya Shimo ,  Koso Aoki ,  Hiromitsu Sakurai ,  Shinji Uemoto

IPC分类号： C09C1/24 ,  B32B5/16

CPC分类号： B82Y30/00 ,  C01P2002/32 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/42 ,  C01P2006/62 ,  C09C1/24 ,  Y10T428/2982 ,  Y10T428/2991

摘要： Black iron-based particles comprise a FeTiO3—Fe2O3 solid solution or a mixed composition of a FeTiO3—Fe2O3 solid solution and an iron-based oxide having a spinel structure, and having a Ti content of from more than 10.0 atm % to 40.0 atm %, calculated as Ti, based on whole Fe, and a blackness (L* value) of 6 to 13.

摘要翻译： 黑铁基颗粒包含FeTiO 3 -Fe 2 O 3固溶体或FeTiO 3 -Fe 2 O 3固溶体和具有尖晶石结构的铁基氧化物的混合组合物，Ti含量大于10.0atm％至40.0atm％ 以Ti为基准，以Fe计，黑度（L *值）为6〜13。

公开(公告)号：US08673529B2

公开(公告)日：2014-03-18

申请号：US13377904

申请日：2010-06-15

申请人： Kaori Kinoshita ,  Shinji Uemoto ,  Eiichi Kurita

发明人： Kaori Kinoshita ,  Shinji Uemoto ,  Eiichi Kurita

IPC分类号： G03G9/113

CPC分类号： G03G9/1131 ,  G03G9/107 ,  G03G9/1133 ,  G03G9/1134 ,  G03G9/1135 ,  G03G9/1137

摘要： The present invention relates to a magnetic carrier for an electrophotographic developer comprising spherical composite particles comprising spherical composite core particles comprising at least ferromagnetic iron oxide fine particles and a cured phenol resin and having an average particle diameter of 1 to 100 μm, and a melamine resin coating layer formed on the respective core particles, wherein a ratio of R100 to R300 (R100/R300) in which R100 is an electric resistance value as measured when applying a voltage of 100 V to the magnetic carrier; and R300 is an electric resistance value as measured when applying a voltage of 300 V to the magnetic carrier, is controlled to lie within the range of 1 to 50. The magnetic carrier according to the present invention is capable of maintaining an adequate electric resistance value upon development, providing images having an excellent image quality, exhibiting a good durability, obtaining a good reproducibility of uniform solid image portions having a high image density, and keeping high quality images having an excellent gradation for a long period of time.

摘要翻译： 本发明涉及一种用于电子照相显影剂的磁性载体，其包含球形复合颗粒，该球形复合颗粒包含至少包含铁磁性氧化铁细颗粒和固化的酚醛树脂的平均粒径为1-100μm的球形复合芯颗粒和三聚氰胺树脂 形成在各个芯粒子上的涂层，其中R100与R300（R100 / R300）的比率，其中R100是当向磁性载体施加100V的电压时测量的电阻值; R300是向磁性载体施加300V的电压时测定的电阻值，被控制在1〜50的范围内。本发明的磁性载体能够保持足够的电阻值 在显影时，提供具有优异图像质量的图像，表现出良好的耐久性，获得具有高图像浓度的均匀立体图像部分的良好再现性，并且保持长时间具有优异灰度的高质量图像。

公开(公告)号：US20140051020A1

公开(公告)日：2014-02-20

申请号：US14008323

申请日：2012-03-29

申请人： Shigenori Harada ,  Shinji Uemoto ,  Hiromitsu Misawa ,  Eiichi Kurita ,  Koso Aoki

发明人： Shigenori Harada ,  Shinji Uemoto ,  Hiromitsu Misawa ,  Eiichi Kurita ,  Koso Aoki

IPC分类号： G03G9/083

CPC分类号： G03G9/0839 ,  C01P2004/04 ,  C01P2004/45 ,  C01P2004/51 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/42 ,  C01P2006/62 ,  C09C1/24 ,  G03G9/107 ,  G03G9/113 ,  G03G9/1134 ,  G03G9/1135 ,  G03G9/1136 ,  Y10T428/2982

摘要： The present invention provides magnetic iron oxide particles having a high bonding property to a resin as well as a magnetic carrier for electrophotographic developers which is improved in durability by enhancing adhesion between a magnetic carrier core material and a coating resin. The magnetic iron oxide particles of the present invention are magnetic iron oxide particles having an average particle diameter of 0.5 to 30 μm onto which a plurality of granules are bonded, and the magnetic carrier for electrophotographic developers according to the present invention is a magnetic carrier for electrophotographic developers which comprises spherical magnetic composite particles produced by dispersing magnetic iron oxide particles in a binder resin in which the magnetic iron oxide particles comprise at least the above magnetic iron oxide particles having an average particle diameter of 0.5 to 30 μm onto which the plurality of granules are bonded.

摘要翻译： 本发明提供了具有与树脂的高粘合性能的磁性氧化铁颗粒以及用于电子照相显影剂的磁性载体，其通过增强磁性载体芯材和涂层树脂之间的粘附性来提高耐久性。 本发明的磁性氧化铁颗粒是平均粒径为0.5至30μm的磁性氧化铁颗粒，多个颗粒结合到其上，本发明的电子照相显影剂用磁性载体是用于 电子照相显影剂，其包含通过将磁性氧化铁颗粒分散在粘合剂树脂中制成的球形磁性复合颗粒，其中磁性氧化铁颗粒至少包含平均粒径为0.5至30μm的上述磁性氧化铁颗粒，多个 颗粒结合。

公开(公告)号：US07670676B2

公开(公告)日：2010-03-02

申请号：US11451597

申请日：2006-06-13

申请人： Nanao Horiishi ,  Toshiyuki Hakata ,  Hirofumi Kawasaki ,  Shinji Uemoto ,  Hiromitsu Misawa ,  Seiichi Takahashi

发明人： Nanao Horiishi ,  Toshiyuki Hakata ,  Hirofumi Kawasaki ,  Shinji Uemoto ,  Hiromitsu Misawa ,  Seiichi Takahashi

IPC分类号： B32B19/00 ,  B32B5/16

CPC分类号： H01F1/344 ,  A61K49/1809 ,  B82Y5/00 ,  H01F1/0054 ,  Y10T428/29 ,  Y10T428/2927 ,  Y10T428/2982

摘要： There are provided a pharmaceutical raw material capable of exhibiting a uniform functionality and producing magnetic particle-containing drugs for diagnosis and medical treatments with a high reproducibility. The pharmaceutical raw material comprises a monodisperse colloid sterile aqueous solution of magnetic iron oxide fine particles having an average particle diameter of 5 to 30 nm, a saturation magnetization of 50 to 90 Am2/kg and a coercive force of 0.1 to 1.6 kA/m. The pharmaceutical raw material can be produced by forming magnetic iron oxide fine particles in the form of a colloid aqueous solution, purifying the resultant colloid aqueous solution of superparamagnetic iron oxide particles by water-washing and removing water-soluble salts by-produced upon the reaction from the reaction solution by an ordinary method, and replacing a dispersing medium of the purified colloid aqueous solution with ultrapure water.

摘要翻译： 提供能够显示均匀功能性并且以高再现性产生用于诊断和医疗的磁性颗粒药物的药用原料。 药物原料包含平均粒径为5〜30nm，饱和磁化强度为50〜90Am 2 / kg，矫顽力为0.1〜1.6kA / m的磁性氧化铁微粒的单分散胶体无菌水溶液。 药物原料可以通过形成胶体水溶液形式的磁性氧化铁细颗粒来制造，通过水洗净化所得到的超顺磁性氧化铁颗粒的胶体水溶液，并除去反应后副产的水溶性盐 通过常规方法从反应溶液中，用超纯水代替纯化的胶体水溶液的分散介质。

公开(公告)号：US20080206566A1

公开(公告)日：2008-08-28

申请号：US12071389

申请日：2008-02-20

申请人： Shinji Uemoto ,  Naoki Uchida ,  Mamoru Kamigaki ,  Ryo Iwai ,  Hiromitsu Misawa ,  Koso Aoki

发明人： Shinji Uemoto ,  Naoki Uchida ,  Mamoru Kamigaki ,  Ryo Iwai ,  Hiromitsu Misawa ,  Koso Aoki

IPC分类号： B32B15/02

CPC分类号： C01G49/08 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/42 ,  C01P2006/63 ,  C01P2006/80 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0836 ,  G03G9/0837 ,  Y10S428/90 ,  Y10T428/2982 ,  Y10T428/2991

摘要： The present invention relates to a black magnetic iron oxide particles each having a polyhedral shape wherein when a percentage of dissolution of iron element based on a total amount of iron element contained in the black magnetic iron oxide particles is 50%, a percentage of dissolution of sulfur element based on a total amount of sulfur element contained in the black magnetic iron oxide particles is less than 40%.

摘要翻译： 本发明涉及一种具有多面体形状的黑色磁性氧化铁颗粒，其中当铁元素溶解在黑色磁性氧化铁颗粒中所含的铁元素的总量的百分比为50％时，溶解的百分比 基于黑色磁性氧化铁颗粒中所含的硫元素的总量的硫元素小于40％。

公开(公告)号：US09285698B2

公开(公告)日：2016-03-15

申请号：US12484318

申请日：2009-06-15

申请人： Shinji Uemoto ,  Hiromitsu Misawa ,  Ryo Iwai ,  Naoki Uchida ,  Koso Aoki ,  Kazuya Fujita ,  Kaori Kinoshita ,  Kazushi Takama ,  Eiichi Kurita

发明人： Shinji Uemoto ,  Hiromitsu Misawa ,  Ryo Iwai ,  Naoki Uchida ,  Koso Aoki ,  Kazuya Fujita ,  Kaori Kinoshita ,  Kazushi Takama ,  Eiichi Kurita

IPC分类号： G03G9/083 ,  G03G9/107 ,  G03G9/113

CPC分类号： G03G9/107 ,  G03G9/113 ,  G03G9/1135 ,  G03G9/1136

摘要： Black magnetic iron oxide particles having an average particle diameter of 0.05 to 2.0 μm and an electric resistance value at an applied voltage of 100 V of not less than 1×108 Ω·cm. Also a magnetic carrier for electrophotographic developer having spherical magnetic composite particles obtained by dispersing black magnetic iron oxide particles in a binder resin. The magnetic carrier has an electric resistance value R100 at an applied voltage of 100 V of 1×108 to 1×1014 Ω·cm, and an electric resistance value R300 at an applied voltage of 300 V which satisfies the relationship represented by the formula: 0.1≦R300/R100≦1.

摘要翻译： 平均粒径为0.05〜2.0μm，施加电压为100V的电阻值为1×10 8Ω·cm·cm以上的黑色磁性氧化铁粒子。 还有一种用于电子照相显影剂的磁性载体，其具有通过将黑色磁性氧化铁颗粒分散在粘合剂树脂中而获得的球形磁性复合颗粒。 磁载体在100V的施加电压为1×108〜1×1014＆OHgr·cm时具有电阻值R100，在300V的施加电压下的电阻值R300满足式 ：0.1＆nlE; R300 / R100＆nlE; 1。

公开(公告)号：US20120115078A1

公开(公告)日：2012-05-10

申请号：US13377904

申请日：2010-06-15

申请人： Kaori Kinoshita ,  Shinji Uemoto ,  Eiichi Kurita

发明人： Kaori Kinoshita ,  Shinji Uemoto ,  Eiichi Kurita

IPC分类号： G03G9/113

CPC分类号： G03G9/1131 ,  G03G9/107 ,  G03G9/1133 ,  G03G9/1134 ,  G03G9/1135 ,  G03G9/1137

摘要： The present invention relates to a magnetic carrier for an electrophotographic developer comprising spherical composite particles comprising spherical composite core particles comprising at least ferromagnetic iron oxide fine particles and a cured phenol resin and having an average particle diameter of 1 to 100 μm, and a melamine resin coating layer formed on the respective core particles, wherein a ratio of R100 to R300 (R100/R300) in which R100 is an electric resistance value as measured when applying a voltage of 100 V to the magnetic carrier; and R300 is an electric resistance value as measured when applying a voltage of 300 V to the magnetic carrier, is controlled to lie within the range of 1 to 50. The magnetic carrier according to the present invention is capable of maintaining an adequate electric resistance value upon development, providing images having an excellent image quality, exhibiting a good durability, obtaining a good reproducibility of uniform solid image portions having a high image density, and keeping high quality images having an excellent gradation for a long period of time.

摘要翻译： 本发明涉及一种用于电子照相显影剂的磁性载体，其包含球形复合颗粒，该球形复合颗粒包含至少包含铁磁性氧化铁细颗粒和固化酚醛树脂的平均粒径为1至100μm的球形复合芯颗粒和三聚氰胺树脂 形成在各个芯粒子上的涂层，其中R100与R300（R100 / R300）的比率，其中R100是当向磁性载体施加100V的电压时测量的电阻值; R300是向磁性载体施加300V的电压时测定的电阻值，被控制在1〜50的范围内。本发明的磁性载体能够保持足够的电阻值 在显影时，提供具有优异图像质量的图像，表现出良好的耐久性，获得具有高图像浓度的均匀立体图像部分的良好再现性，并且保持长时间具有优异灰度的高质量图像。

公开(公告)号：US20100073012A1

公开(公告)日：2010-03-25

申请号：US11993471

申请日：2006-06-22

申请人： Yoshiyuki Inoue ,  Hideyuki Shimada ,  Shinobu Sekito ,  Hiroshi Hasegawa ,  Hiroshi Kaneiwa ,  Shinji Uemoto ,  Junichi Hirai

发明人： Yoshiyuki Inoue ,  Hideyuki Shimada ,  Shinobu Sekito ,  Hiroshi Hasegawa ,  Hiroshi Kaneiwa ,  Shinji Uemoto ,  Junichi Hirai

IPC分类号： H01H31/12

CPC分类号： H02K9/24 ,  H02K11/20

摘要： According to the present invention, a method of detecting water leakage in a coil, which determines whether or not cooling water leaks into an insulation layer, the water being supplied to a conductor of a coil covered with the insulation layer, including: applying an AC voltage to the conductor; bringing a surface electrode device into pressure contact with the insulation layer; grounding the surface electrode device through an impedance; measuring a potential of the surface electrode device; and determining that the cooling water leaks from the conductor into the insulation layer when a measured potential is higher than a potential of a normal coil

摘要翻译： 根据本发明，一种检测线圈中漏水的方法，其确定冷却水是否泄漏到绝缘层中，所述水被供应到被绝缘层覆盖的线圈的导体，包括：施加AC 导体电压; 使表面电极器件与绝缘层压力接触; 通过阻抗使表面电极器件接地; 测量表面电极器件的电位; 并且当测量电位高于正常线圈的电位时，确定冷却水从导体泄漏到绝缘层中

公开(公告)号：US20060287404A1

公开(公告)日：2006-12-21

申请号：US11451597

申请日：2006-06-13

申请人： Nanao Horiishi ,  Toshiyuki Hakata ,  Hirofumi Kawasaki ,  Shinji Uemoto ,  Hiromitsu Misawa ,  Seiichi Takahashi

发明人： Nanao Horiishi ,  Toshiyuki Hakata ,  Hirofumi Kawasaki ,  Shinji Uemoto ,  Hiromitsu Misawa ,  Seiichi Takahashi

IPC分类号： B01F3/12 ,  H01F1/00 ,  B32B5/16 ,  C09K3/00

CPC分类号： H01F1/344 ,  A61K49/1809 ,  B82Y5/00 ,  H01F1/0054 ,  Y10T428/29 ,  Y10T428/2927 ,  Y10T428/2982

摘要： There are provided a pharmaceutical raw material capable of exhibiting a uniform functionality and producing magnetic particle-containing drugs for diagnosis and medical treatments with a high reproducibility. The pharmaceutical raw material comprises a monodisperse colloid sterile aqueous solution of magnetic iron oxide fine particles having an average particle diameter of 5 to 30 nm, a saturation magnetization of 50 to 90 Am2/kg and a coercive force of 0.1 to 1.6 kA/m. The pharmaceutical raw material can be produced by forming magnetic iron oxide fine particles in the form of a colloid aqueous solution, purifying the resultant colloid aqueous solution of superparamagnetic iron oxide particles by water-washing and removing water-soluble salts by-produced upon the reaction from the reaction solution by an ordinary method, and replacing a dispersing medium of the purified colloid aqueous solution with ultrapure water.

摘要翻译： 提供能够显示均匀功能性并且以高再现性产生用于诊断和医疗的磁性颗粒药物的药用原料。 药物原料包含平均粒径为5〜30nm，饱和磁化强度为50〜90Am 2 / kg的磁性氧化铁微粒的单分散胶体无菌水溶液，矫顽力 为0.1〜1.6kA / m。 药物原料可以通过形成胶体水溶液形式的磁性氧化铁细颗粒来制造，通过水洗净化所得到的超顺磁性氧化铁颗粒的胶体水溶液，并除去反应后副产的水溶性盐 通过常规方法从反应溶液中，用超纯水代替纯化的胶体水溶液的分散介质。