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1. 发明专利

JP2011113093A Electrophotographic toner 有权
标题翻译：电子照相机
公开(公告)号：JP2011113093A
公开(公告)日：2011-06-09
申请号：JP2010261338
申请日：2010-11-24
申请人： Toshiba Tec Corp , 東芝テック株式会社
发明人： AOKI TAKAYASU , NODA YASUHITO , IMAMIYA KOJI , ITO GOJI , FURUYAMA NOBORU
IPC分类号： G03G9/08 , G03G9/087 , G03G9/09
CPC分类号： G03G9/0926 , G03G9/0821 , G03G9/08755 , G03G9/08782 , G03G9/08797 , G03G9/0906 , G03G9/0924 , G03G9/0928
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic toner which is suppressed in glossiness when decolored. SOLUTION: The electrophotographic toner contains an electron-donating coloring compound, an electron-accepting color developing agent, and a polyester binder resin having a weight average molecular weight Mw of 6,000 or larger and 25,000 or smaller, and is decolored by heating. The electrophotographic toner further contains at least one of fine particles having an average primary particle diameter of 50 nm or larger and 200 nm or smaller. Furthermore, the coverage of the electrophotographic toner with the fine particles having an average primary particle diameter of 50 nm or larger and 200 nm or smaller is 30% or lower per one of fine particles, and the coverage of the toner with all of the fine particles contained in the toner is 50% or higher and 150% or lower. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种当脱色时抑制光泽度的电子照相调色剂。解决方案：电子照相调色剂含有给电子着色化合物，电子接受显色剂和重均分子量Mw为6000以上且25,000以下的聚酯粘合剂树脂，并通过加热进行脱色。电子照相调色剂还含有平均一次粒径为50nm以上且200nm以下的微粒中的至少一种。此外，具有平均一次粒径为50nm以上且200nm以下的微粒的电子照相调色剂的覆盖率为每一个细颗粒为30％以下，并且具有全部微细的调色剂的覆盖率包含在调色剂中的颗粒为50％以上且150％以下。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2010072642A Method of manufacturing developer 有权
标题翻译：制造开发商的方法
公开(公告)号：JP2010072642A
公开(公告)日：2010-04-02
申请号：JP2009211040
申请日：2009-09-11
申请人： Toshiba Corp , Toshiba Tec Corp , 東芝テック株式会社 , 株式会社東芝
发明人： UDO MOTONARI , AOKI TAKAYASU , URABE TAKASHI , ITO GOJI , NODA YASUHITO , ARAKI SATOSHI , IKUTA MASAHIRO , HARA TAKASHI , MATSUMOTO ASUMI
IPC分类号： G03G9/087 , C08J3/16 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a developer excellent in charging characteristics and having a sharp particle size distribution. SOLUTION: The method includes: preparing a dispersion liquid containing 1 ppm to 0.5 wt.% of an anionic surfactant having a molecular weight of 100-1,000; applying mechanical shear to the dispersion liquid to obtain toner fine particles; and adding a monovalent acid salt to the dispersion liquid containing the toner fine particles in a weight ratio of the acid salt to the anionic surfactant of 1:1.5 to 1:30 to aggregate the toner fine particles. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造充电特性优异且具有尖锐的粒度分布的显影剂的方法。解决方案：该方法包括：制备含有1ppm至0.5重量％的分子量为100-1,000的阴离子表面活性剂的分散液; 对分散液施加机械剪切，得到调色剂微粒; 并将含有调色剂微粒的分散液中的酸式盐与阴离子表面活性剂的重量比为1:1.5〜1:30添加1以使得调色剂微粒聚集。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2009244883A Method for producing developing agent 审中-公开
标题翻译：生产发酵剂的方法
公开(公告)号：JP2009244883A
公开(公告)日：2009-10-22
申请号：JP2009087120
申请日：2009-03-31
申请人： Toshiba Corp , Toshiba Tec Corp , 東芝テック株式会社 , 株式会社東芝
发明人： HARA TAKASHI , URABE TAKASHI , AOKI TAKAYASU , ITO GOJI , NODA YASUHITO , UDO MOTONARI , ARAKI SATOSHI , IKUTA MASAHIRO , MATSUMOTO ASUMI , GOTO YASUO
IPC分类号： G03G9/087
CPC分类号： G03G9/0815 , G03G9/0804 , G03G9/081 , G03G9/0819 , G03G9/0827 , G03G9/08755 , G03G9/08795
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a toner and a developing agent such that reduction in particle size and shape control are achieved and excellent images are formed.
SOLUTION: In the method for producing the toner and developing agent, a surfactant of at least one of an acid having a surface activating function and a salt having a surface activating function is added, in an amount of 0.1 to 5% by weight of the total weight of the developing agent, to a dispersion liquid prepared by dispersing a granular mixture obtained by mixing, melt-kneading, and further pulverizing toner materials into an aqueous medium, and the granular mixture is atomized by applying mechanical shearing force thereto in a heated and molten state.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造调色剂和显影剂的方法，使得能够实现粒度和形状控制的减小并形成优异的图像。解决方案：在调色剂和显影剂的制造方法中，加入具有表面活化功能的酸中的至少一种表面活性剂和具有表面活化功能的盐的表面活性剂，其量为0.1〜5％通过将通过将调色剂材料混合，熔融捏合和进一步粉碎到水性介质中而获得的颗粒混合物分散而制备的分散液，并且将颗粒状混合物通过施加机械剪切力而雾化处于加热和熔融状态。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2013137567A Electrophotographic toner, image forming apparatus, and toner cartridge 有权
标题翻译：电子照相墨粉，图像形成装置和墨粉盒
公开(公告)号：JP2013137567A
公开(公告)日：2013-07-11
申请号：JP2013036294
申请日：2013-02-26
申请人： Toshiba Tec Corp , 東芝テック株式会社
发明人： AOKI TAKAYASU , NODA YASUHITO , IMAMIYA KOJI , ITO TSUYOSHI , FURUYAMA NOBORU
IPC分类号： G03G9/08 , G03G9/09
CPC分类号： G03G9/0926 , G03G9/0821 , G03G9/08755 , G03G9/08782 , G03G9/08797 , G03G9/0906 , G03G9/0924 , G03G9/0928
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic toner which is suppressed in glossiness when having been decolored.SOLUTION: The electrophotographic toner contains a coloring material obtained by encapsulating an electron-donating coloring compound, an electron-accepting color developing agent and a decolorization temperature controlling agent, and a binder resin. The toluene-insoluble content is 10 mass% or more and 40 mass% or less. The decolorization temperature controlling agent is decolored by heating. The electrophotographic toner further contains at least one of fine particles having an average primary particle diameter of 50 nm or larger and 200 nm or smaller. The coverage that the fine particles having an average primary particle diameter of 50 nm or larger and 200 nm or smaller cover toner particles of the electrophotographic toner is 30% or less per one of fine particles, and the coverage that all of the fine particles cover the toner particles is 50% or more and 150% or less.
摘要翻译：要解决的问题：提供一种当脱色时抑制光泽度的电子照相调色剂。溶液：电子照相调色剂含有通过包封给电子着色化合物，电子接受显色剂和脱色温度而得到的着色材料控制剂和粘合剂树脂。甲苯不溶成分为10质量％以上且40质量％以下。脱色温度控制剂通过加热脱色。电子照相调色剂还含有平均一次粒径为50nm以上且200nm以下的微粒中的至少一种。平均一次粒径为50nm以上且200nm以下的微粒覆盖电子照相调色剂的调色剂颗粒的覆盖率为每个细颗粒的30％以下，所有微粒覆盖的覆盖范围调色剂颗粒为50％以上且150％以下。

5. 发明专利

JP2011018045A Developer and method of manufacturing the same 审中-公开
标题翻译：开发商及其制造方法
公开(公告)号：JP2011018045A
公开(公告)日：2011-01-27
申请号：JP2010156030
申请日：2010-07-08
申请人： Toshiba Corp , Toshiba Tec Corp , 東芝テック株式会社 , 株式会社東芝
发明人： GOTO YASUO , SATO SHUITSU , AOKI TAKAYASU , URABE TAKASHI , HARA TAKASHI , ITO GOJI , NODA YASUHITO , ARAKI SATOSHI , UDO MOTONARI , IKUTA MASAHIRO , TAKANO HIROSHI , ISHIKAWA JUNICHI
IPC分类号： G03G9/087 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide a developer having satisfactory storage stability and fixing performance.SOLUTION: The method of manufacturing developer includes: a step of mixing a mixture which comprises a binder resin and a colorant and is granulated, with an aqueous medium to form dispersion liquid; a step of subjecting the dispersion liquid to mechanical shear and pulverizing the granulated mixture to form fine particles; a step of agglomerating the fine particles to form agglomerated particles; a step of, thereafter, adding dispersion liquid containing polymethyl methacrylate particles having a glass transition temperature of Tg2 higher than Tg1 to the dispersion liquid containing the agglomerated particles; and a step of attaching polymethyl methacrylate particles to the surface of the agglomerated particles at a temperature higher than Tg1 and lower than the temperature of Tg2-10°C to subject the agglomerated particles to an indeterminate forming process.
摘要翻译：要解决的问题：提供具有满意的储存稳定性和定影性能的显影剂。解决方案：制造显影剂的方法包括：将含有粘合剂树脂和着色剂的混合物与水性介质混合以形成的步骤分散液对分散液进行机械剪切并粉碎造粒混合物以形成细颗粒的步骤; 使细颗粒附聚以形成附聚颗粒的步骤; 此后，将含有玻璃化转变温度Tg2高于Tg1的聚甲基丙烯酸甲酯颗粒的分散液添加到含有附聚颗粒的分散液中; 以及在高于Tg1且低于Tg2-10℃的温度下将聚甲基丙烯酸甲酯颗粒附着到附聚颗粒的表面的步骤，以使附聚颗粒成为不确定的形成过程。

6. 发明专利

JP2010282208A Developer and method of producing the same 审中-公开
标题翻译：开发者及其生产方法
公开(公告)号：JP2010282208A
公开(公告)日：2010-12-16
申请号：JP2010128219
申请日：2010-06-03
申请人： Toshiba Corp , Toshiba Tec Corp , 東芝テック株式会社 , 株式会社東芝
发明人： ISHIKAWA JUNICHI , ITO GOJI , NODA YASUHITO , ARAKI SATOSHI , UDO MOTONARI , AOKI TAKAYASU , URABE TAKASHI , IKUTA MASAHIRO , GOTO YASUO , TAKANO HIROSHI , HARA TAKASHI
IPC分类号： G03G9/087
CPC分类号： G03G9/08795 , G03G9/0804 , G03G9/081 , G03G9/0819 , G03G9/08755
摘要： PROBLEM TO BE SOLVED: To produce a favorable developer having a uniform particle size distribution at low cost.
SOLUTION: In a method of producing the developer, a coarsely granulated mixture formed of a toner material containing a colorant and a binder resin is atomized by mechanical shearing, aggregated, and fused. The solid concentration of a dispersion liquid containing aggregated particles is 5.0-40.0%, the volume average particle size of the aggregated particles is 1.0-10.0 μm, and the percentage of standard deviation from the volume average particle size is 30.0% or lower.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：以低成本生产具有均匀粒度分布的良好显影剂。解决方案：在制造显影剂的方法中，由含有着色剂的调色剂材料和粘合剂树脂形成的粗粒化混合物通过机械剪切，聚集和熔融而雾化。含有凝集粒子的分散液的固体浓度为5.0〜40.0％，凝集粒子的体积平均粒径为1.0〜10.0μm，体积平均粒径的标准偏差的百分比为30.0％以下。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2010020304A Method for producing developing agent 审中-公开
标题翻译：生产发酵剂的方法
公开(公告)号：JP2010020304A
公开(公告)日：2010-01-28
申请号：JP2009161009
申请日：2009-07-07
申请人： Toshiba Corp , Toshiba Tec Corp , 東芝テック株式会社 , 株式会社東芝
发明人： ITO GOJI , AOKI TAKAYASU , URABE TAKASHI , UDO MOTONARI , NODA YASUHITO , ARAKI SATOSHI , IKUTA MASAHIRO , HARA TAKASHI , MATSUMOTO ASUMI
IPC分类号： G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a developing agent having less variation in particle diameter and good fixability and giving good image quality.
SOLUTION: In the method, a toner material dispersion liquid is introduced into a high-pressure wet atomizing unit 10 and subjected to mechanical shearing to make the granular mixture into fine particles, thereby preparing a dispersion liquid containing fine particles having a smaller particle diameter than a particle diameter of the granular mixture. The high-pressure wet atomizing unit 10 is preliminarily filled with an alkaline aqueous solution before introducing the toner material dispersion liquid. The fine particles are then agglomerated to obtain a toner.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有较小的粒径变化和良好定影性并且具有良好的图像质量的显影剂的制造方法。解决方案：在该方法中，将调色剂材料分散液引入高压湿雾化单元10中并进行机械剪切以使颗粒状混合物成为细颗粒，从而制备含有较小颗粒的分散液颗粒直径大于粒状混合物的粒径。在引入调色剂分散液之前，预先用碱性水溶液填充高压湿式雾化装置10。然后将细颗粒团聚以获得调色剂。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2009128908A Developing agent and manufacturing method therefor 审中-公开
标题翻译：发展代理及其制造方法
公开(公告)号：JP2009128908A
公开(公告)日：2009-06-11
申请号：JP2008265308
申请日：2008-10-14
申请人： Toshiba Corp , Toshiba Tec Corp , 東芝テック株式会社 , 株式会社東芝
发明人： ITO GOJI , AOKI TAKAYASU , URABE TAKASHI , UDO MOTONARI , NODA YASUHITO , ARAKI SATOSHI , IKUTA MASAHIRO , HARA TAKASHI
IPC分类号： G03G9/087
CPC分类号： G03G9/0804 , G03G9/0819 , G03G9/08755 , G03G9/09741
摘要： PROBLEM TO BE SOLVED: To provide a developing agent which is superior in charging performance and low-temperature fixability while reducing a toner particle.
SOLUTION: The method includes the step of forming agglomerated particles by agglomerating fine particulate mixture containing a binder resin and a colorant. In the step of forming agglomerated particles, a cationic organic coagulating agent having an average molecular weight of from 1000 to 100000 is added to a liquid dispersion containing fine particles.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种在减少调色剂颗粒的同时在充电性能和低温定影性方面优异的显影剂。解决方案：该方法包括通过聚集含有粘合剂树脂和着色剂的细颗粒混合物形成附聚颗粒的步骤。在形成附聚颗粒的步骤中，将平均分子量为1000至100000的阳离子有机凝结剂加入到含有细颗粒的液体分散体中。版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2004264541A Developer and image forming method using same 审中-公开
公开(公告)号：JP2004264541A
公开(公告)日：2004-09-24
申请号：JP2003054323
申请日：2003-02-28
申请人： Toshiba Tec Corp , 東芝テック株式会社
发明人： URABE TAKASHI , SATOU CHIKATOSHI , NODA YASUHITO
IPC分类号： G03G9/08 , G03G9/09 , G03G15/01 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To obtain a developer capable of miniaturizing an image forming apparatus and capable of inexpensively forming a good image. SOLUTION: A color image is formed using the developer in which a black toner has a larger volume average particle diameter than that of color toner and has a higher toner surface coverage with an external additive than the color toner. The particle diameter of the black toner is 3 to 10 μm in terms of a volume average particle diameter and the particle diameter of the black toner is smaller than the minimum particle diameter of the color toner by ≤0.5 μm. A black developing unit and color developing units are independently arranged in combination. COPYRIGHT: (C)2004,JPO&NCIPI

10. 发明专利

JP2010044387A Method of manufacturing developer 审中-公开
标题翻译：制造开发商的方法
公开(公告)号：JP2010044387A
公开(公告)日：2010-02-25
申请号：JP2009186762
申请日：2009-08-11
申请人： Toshiba Corp , Toshiba Tec Corp , 東芝テック株式会社 , 株式会社東芝
发明人： HARA TAKASHI , URABE TAKASHI , AOKI TAKAYASU , ITO GOJI , NODA YASUHITO , UDO MOTONARI , ARAKI SATOSHI , IKUTA MASAHIRO , MATSUMOTO ASUMI
IPC分类号： G03G9/087 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide a developer having a sharp grain size distribution and capable of forming images of good picture quality.
SOLUTION: When a granular mixture containing a binder resin and a coloring agent is prepared and/or when a dispersion liquid containing the granular mixture is prepared, a lubricant is added and the dispersion liquid containing the lubricant is passed through a high pressure homogenizer.
COPYRIGHT: (C)2010,JPO&INPIT

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