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61. 发明专利

JP2007078925A Toner and method for manufacturing the same, and developer, toner filled container, process cartridge, image forming apparatus, and image forming method 有权
标题翻译：调色剂及其制造方法，开发商，调色剂填充容器，过程盒，图像形成装置和图像形成方法
公开(公告)号：JP2007078925A
公开(公告)日：2007-03-29
申请号：JP2005264821
申请日：2005-09-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAGATOMO NOBUYASU , YAMASHITA YUJI , ISHII MASAYUKI , SHIDARA YASUSADA
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a toner and the like which prevent the occurrence of photoreceptor filming, obviate fluctuation in image unevenness, obviate the embedment of an external additive by developer agitation during use, reduce the change in environmental stability, transferability, electrostatic chargeability, and cleanability for a long period, and provide excellent stability. SOLUTION: The toner contains at least toner mother particles and a fatty acid metal compound. The liberation rate of the fatty acid metal compound which is measured by a particle analyzer method and is the ratio of the number of the detection pieces of the metal atoms of the fatty acid metal compound liberated in the total number of the detection pieces of the metal atoms of the fatty acid metal compound is ≤1.0 number%, and the absolute deviation of the carbon atoms and metal atoms when the light emission voltage based on the carbon atoms derived from the binder resin included in the toner mother particles is defined as X and the light emission voltage based on the metal atoms of the fatty acid metal compound is defined as Y and when X and Y are approximated by a two-third power curve is ≤0.1. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供防止感光膜成膜的调色剂等，消除图像不均匀的波动，在使用过程中消除了通过显影剂搅拌的外部添加剂的嵌入，减少了环境稳定性，转印性的变化，静电充电性和可清洁性，并且提供优异的稳定性。调色剂至少含有调色剂母粒和脂肪酸金属化合物。通过粒子分析法测定的脂肪酸金属化合物的释放速度是在金属检测片的总数中释放的脂肪酸金属化合物的金属原子的检测片数的比例脂肪酸金属化合物的原子≤1.0数％，当基于由调色剂母粒子中包含的粘合剂树脂衍生的碳原子的发光电压定义为X和X时，碳原子和金属原子的绝对偏差基于脂肪酸金属化合物的金属原子的发光电压被定义为Y，并且当X和Y近似为三分之一功率曲线时，≤0.1。版权所有（C）2007，JPO＆INPIT

62. 发明专利

JP2007072350A Toner and image forming method using same 审中-公开
标题翻译：使用相同的调色剂和图像形成方法
公开(公告)号：JP2007072350A
公开(公告)日：2007-03-22
申请号：JP2005261746
申请日：2005-09-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ISHII MASAYUKI , YAMASHITA YUJI , NAGATOMO NOBUYASU
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a toner etc., with which satisfactory transferability and cleanability can be maintained for a long period, there is no fluctuation in image unevenness, flow properties and electrostatic chargeability are less changed for a long period and stability is excellent. SOLUTION: The toner comprises having at least a toner nucleus, and an external additive on the surface of the toner nucleus, in which the external additive contains at least an inorganic oxide of a large grain size having a grain size of 50 to 500 nm. The number of pieces of the inorganic oxide existing on the surface of the toner nucleus observed in an SEM photograph taken in ten-thousand-times magnification at 2.5kV by using a scanning type electrostatic microscope is 0 to 3 pieces in the least part and 15 to 200 pieces in the most part when ≥10 points of the region 1×1μm 2 of a piece of the toner are observed. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供长时间保持令人满意的转印性和可清洁性的调色剂等，不存在图像不均匀的波动，流动性和静电充电性长时间变化较小，稳定性很好。调色剂包括至少具有调色剂核和在调色剂核的表面上的外部添加剂，其中外部添加剂至少包含粒度为50至大小的粒径的无机氧化物至 500 nm。使用扫描型静电显微镜以2.5kV放大倍数拍摄的SEM照片观察到的在调色剂核表面存在的无机氧化物的片数，至少为0〜3个，当观察到一片调色剂的区域1×1μm 2 的≥10点时，大部分为200片。版权所有（C）2007，JPO＆INPIT

63. 发明专利

JP2014163949A Toner for electrostatic charge image development 有权
标题翻译：静电电荷图像开发的优点
公开(公告)号：JP2014163949A
公开(公告)日：2014-09-08
申请号：JP2013031754
申请日：2013-02-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AWAMURA JUNICHI , NAGATOMO NOBUYASU , KOJIMA TOMOYUKI , SAKASHITA SHINGO , MURAYAMA TOMOKI , FUKUDA MASAYA
IPC分类号： G03G9/08 , G03G9/087
CPC分类号： G03G9/09725 , G03G9/0804 , G03G9/08755 , G03G9/09716
摘要： PROBLEM TO BE SOLVED: To provide a toner capable of simultaneously ensuring heat-resistant storage stability, transferability, fluidity, filming resistance, and charge stability in high temperature and high humidity, and having excellent low-temperature fixability and exhibiting good image quality from the viewpoint of energy saving.SOLUTION: A toner for electrostatic charge image development includes base particles containing at least a polyester resin as a binder resin, and a silica additive on the surface of each of the base particles. The toner contains, as the silica, silica that is derived from a sol-gel method and has an aspherical shape; and when the toner is stored in a high-temperature and high-humidity condition, a change rate of a specific area falls within a range between 25 and 45%.
摘要翻译：要解决的问题：提供一种能够同时确保高温高湿下的耐热储存稳定性，转印性，流动性，耐成膜性和电荷稳定性的调色剂，并且具有优异的低温定影性和良好的图像质量节能观点。解决方案：用于静电荷图像显影的调色剂包括至少含有作为粘合剂树脂的聚酯树脂的基础颗粒和在每个基础颗粒的表面上的二氧化硅添加剂。调色剂含有作为二氧化硅的二氧化硅，其由溶胶 - 凝胶法衍生且具有非球面形状; 并且当调色剂在高温高湿条件下储存时，特定面积的变化率在25％与45％之间的范围内。

64. 发明专利

JP2014157328A Toner, and developer and image forming apparatus 审中-公开
标题翻译： TONER，开发商和图像形成设备
公开(公告)号：JP2014157328A
公开(公告)日：2014-08-28
申请号：JP2013029043
申请日：2013-02-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAGATOMO NOBUYASU , AWAMURA JUNICHI , KOJIMA TOMOYUKI , SAKASHITA SHINGO , MURAYAMA TOMOKI
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a toner that has high durability, and excellent transferability in high-speed full-color image formation, as well as excellent transferability and image density for a long-term use; and a developer and an image forming apparatus.SOLUTION: A toner includes toner base particles containing at least a binder resin and a mold release agent, and at least one or more types of external additives. The first type of the external additive are aspherical bonded particles formed by primary particles being bonded with each other, and the aspherical bonded particles has an asphere ratio of 60% or more.
摘要翻译：要解决的问题：提供高速全色图像形成中具有高耐久性和优异转印性的调色剂以及长期使用的优异的转印性和图像浓度; 以及显影剂和图像形成装置。解决方案：调色剂包括至少含有粘合剂树脂和脱模剂的调色剂基础颗粒和至少一种或多种外部添加剂。第一种类型的外部添加剂是由初级颗粒彼此粘合形成的非球面粘合颗粒，非球面粘合颗粒的非球面比率为60％以上。

65. 发明专利

JP2014056047A Toner for electrophotography 有权
标题翻译：电子照相机
公开(公告)号：JP2014056047A
公开(公告)日：2014-03-27
申请号：JP2012199750
申请日：2012-09-11
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AWAMURA JUNICHI , OGAWA SATORU , NAGATOMO NOBUYASU , KOJIMA TOMOYUKI , ITO DAISUKE , UCHINOKURA OSAMU , HONDA TAKAHIRO
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic transparent toner that is used in an ultra high-speed print system capable of supporting a print-on-demand (POD) field in particular, and has excellent low-temperature fixability and heat-resistance storage stability, in a method of forming an image using an electrophotographic transparent toner for forming different glossinesses on the same recording target medium.SOLUTION: An electrophotographic transparent toner contains at least a crystalline polyester; and toner particles of the toner include silica in which a plurality of primary particles are joined to each other to form a secondary particle.
摘要翻译：要解决的问题：提供一种特别用于能够支持打印点播（POD）领域的超高速打印系统中使用的电子照相透明调色剂，并具有优异的低温定影性和耐热性储存在使用电子照相透明调色剂形成图像的方法中，在相同的记录目标介质上形成不同的光泽度的方法。溶液：电子照相透明调色剂至少含有结晶聚酯; 并且调色剂的调色剂颗粒包括其中多个一次颗粒彼此接合以形成二次颗粒的二氧化硅。

66. 发明专利

JP2013235222A Toner, two-component developer including the toner, and image forming apparatus 审中-公开
标题翻译：调色剂，包括调色剂的两组分显影剂和图像形成装置
公开(公告)号：JP2013235222A
公开(公告)日：2013-11-21
申请号：JP2012109266
申请日：2012-05-11
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KOJIMA TOMOYUKI , NAGATOMO NOBUYASU , AWAMURA JUNICHI , SAKASHITA SHINGO , MURAYAMA TOMOKI
IPC分类号： G03G9/08 , C01B33/18 , G03G9/087 , G03G9/10
摘要： PROBLEM TO BE SOLVED: To provide a toner capable of achieving both low-temperature fixability and stress resistance, and applying high glossiness to images, and an image forming apparatus.SOLUTION: A toner includes toner base particles having at least a binder resin and a mold release agent, and inorganic fine particles externally added to the surface of the toner base particle as an external additive. The inorganic fine particles have inorganic fine particles (A) in which at least a plurality of primary particles are attached to each other to form a secondary particle. The volume average particle diameter Dv of the toner is in a range of 4.0 μm
摘要翻译：要解决的问题：提供能够实现低温定影性和耐应力性以及对图像施加高光泽度的调色剂和图像形成装置。解决方案：调色剂包括具有至少粘合剂树脂的调色剂基础颗粒和脱模剂和外部添加到调色剂基础颗粒表面的无机细颗粒作为外部添加剂。无机细颗粒具有其中至少多个一次粒子彼此附着以形成二次粒子的无机细颗粒（A）。调色剂的体积平均粒径Dv在4.0μm

67. 发明专利

JP2013195621A Toner for electrostatic charge image development, two-component developer, and image forming apparatus 审中-公开
标题翻译：静电电荷图像开发用色调剂，双组分显影剂和图像形成装置
公开(公告)号：JP2013195621A
公开(公告)日：2013-09-30
申请号：JP2012061685
申请日：2012-03-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KOJIMA TOMOYUKI , NAGATOMO NOBUYASU , SATO SACHIKO , UCHINOKURA OSAMU , AWAMURA JUNICHI , OGAWA SATORU , HONDA TAKAHIRO , ITO DAISUKE , KUSAHARA TERUKI , WATANABE MASAKI , INOUE DAISUKE , HIROHARA KIWAKO
IPC分类号： G03G9/08 , G03G9/087 , G03G15/08 , G03G15/09
CPC分类号： G03G9/08755 , G03G9/0804 , G03G9/0821 , G03G9/08782 , G03G9/09708 , G03G9/09725
摘要： PROBLEM TO BE SOLVED: To provide a toner that has excellent cleanability, improves transfer efficiency, eliminates image defects during respective transfer and outputs images with good reproducibility for a long period, and has low-temperature fixability and high storability under high temperature.SOLUTION: A toner for electrostatic charge image development includes inorganic fine particles as an external additive on the surface of toner base particles including at least a binder resin and a mold release agent. The toner base particles have the BET specific surface area of 2.5 m/g to 5.0 m/g; and the inorganic fine particles contains inorganic fine particles (A) in which at least a plurality of primary particles adhere to each other to form a second particle.
摘要翻译：要解决的问题：为了提供清洁性优异的调色剂，提高转印效率，消除了各自转印期间的图像缺陷，长时间输出具有良好再现性的图像，并且在高温下具有低温定影性和高储存性。解决方案：用于静电荷图像显影的调色剂包括作为外部添加剂的无机细颗粒在至少包括粘合剂树脂和脱模剂的调色剂基础颗粒的表面上。调色剂基础颗粒的BET比表面积为2.5m 2 / g至5.0m 2 / g; 无机微粒含有至少多个一次粒子彼此粘附形成第二粒子的无机微粒（A）。

68. 发明专利

JP2013109142A Toner and image forming method using the same and process cartridge 审中-公开
标题翻译：使用相同的图像和图像形成方法和方法
公开(公告)号：JP2013109142A
公开(公告)日：2013-06-06
申请号：JP2011253837
申请日：2011-11-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： WATANABE MASAKI , UCHINOKURA OSAMU , AWAMURA JUNICHI , HONDA TAKAHIRO , OGAWA SATORU , NAGATOMO NOBUYASU , YAMASHITA YUJI
IPC分类号： G03G9/08 , G03G9/087
CPC分类号： G03G9/0825 , G03G9/09314 , G03G9/09321 , G03G9/09328 , G03G9/09392
摘要： PROBLEM TO BE SOLVED: To provide toner excellent in low-temperature fixability and heat-resistant storage stability since it has a core-shell structure in a full-color image forming method.SOLUTION: There are provided core-shell type toner particles containing at least a binder resin, wherein a shell includes a resin particle layer A and a resin particle layer B outside the resin particle layer A, and if a flow start temperature in a flow tester is defined as Tfb and a T1/2 method temperature is defined as T1/2, Tfb and T1/2 of a resin p constituting a core, a resin a constituting the resin particle layer A and a resin b constituting the resin particle layer B satisfy the expression (1) [4.5≤T1/2(P)-Tfb(P)≤14], the expression (2) [20≤T1/2(A)-Tfb(A)≤40] and the expression (3) [23.5≤T1/2(B)-Tfb(B)≤40] [wherein, (P) represents a resin p, (A) represents a resin a and (B) represents a resin b.)
摘要翻译：要解决的问题：提供具有优异的低温定影性和耐热储存稳定性的调色剂，因为它具有全色图像形成方法中的核 - 壳结构。解决方案：提供至少含有粘合剂树脂的核 - 壳型调色剂颗粒，其中壳体包括树脂颗粒层A和树脂颗粒层A外部的树脂颗粒层B，并且如果流动开始温度在流量测定器被定义为Tfb，T1 / 2方法温度被定义为构成芯的树脂p的T1 / 2，Tfb和T1 / 2，构成树脂颗粒层A的树脂a和构成树脂的树脂b 颗粒层B满足表达式（1）[4.5≤T1/ 2（P）-Tfb（P）≤14]，表达式（2）[20≤T1/ 2（A）-Tfb（A）≤40]和表达式（3）[23.5≤T1/ 2（B）-Tfb（B）≤40]其中，（P）表示树脂p，（A）表示树脂a，（B）表示树脂b）版权所有（C）2013，JPO＆INPIT

69. 发明专利

JP2012083714A Toner, developer, container with toner, process cartridge and image forming apparatus 有权
标题翻译：调色剂，开发者，带调色剂的容器，过程盒和图像形成装置
公开(公告)号：JP2012083714A
公开(公告)日：2012-04-26
申请号：JP2011172573
申请日：2011-08-08
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SHIBA MASANA , NAGATOMO NOBUYASU , HONDA TAKAHIRO , SHIMODA NAOTO , CHIBA RYUTA
IPC分类号： G03G9/08 , G03G9/087 , G03G9/10
摘要： PROBLEM TO BE SOLVED: To provide a toner which causes little generation of a volatile organic compound (VOC) by heating in fixing the toner, reduces contamination on the back face of a printing sheet, causes little generation of filming and shows excellent separating property from a sheet during fixing, excellent fluidity and replenishing property, and excellent transfer efficiency, achieves both of low-temperature fixability and heat-resistant storage property and gives an image of high picture quality, while maintaining advantages of a chemical toner that the toner has a small particle diameter with a narrow grain size distribution and excellent fluidity.SOLUTION: The toner is obtained by emulsifying or dispersing a toner material liquid, which is prepared by dissolving or dispersing a toner material in an oil-based medium, in an aqueous medium, and granulating the toner material. The toner contains a hydrocarbon wax showing a mass reduction of 10 mass% or less at 165°C. The viscosity η of the toner measured by a rheometer and the amount W of the wax oozing out during fixing satisfy an expression (1): 40≥η×(W-0.18)≥13.
摘要翻译：要解决的问题：为了提供在定影调色剂时通过加热而几乎不产生挥发性有机化合物（VOC）的调色剂，减少了印刷纸的背面的污染，几乎不产生成膜，并且显示出优异的在固定期间与片材分离性能优异的流动性和补充性能以及良好的转印效率，同时实现了低温定影性和耐热储存性，同时保持了高质量的图像，同时保持了化学调色剂的优点，调色剂具有粒径分布窄，流动性好的小粒径。解决方案：调色剂是通过将通过将调色剂材料溶解或分散在油基介质中制备的调色剂材料液体乳化或分散在水性介质中并将调色剂材料制粒而获得的。调色剂含有在165℃下质量降低10质量％以下的烃蜡。通过流变仪测定的调色剂的粘度η和在定影期间渗出的蜡的量W满足式（1）：40≥η×（W-0.18）≥133。版权所有（C）2012，JPO＆INPIT

70. 发明专利

JP2011118174A Method of manufacturing toner and toner 审中-公开
标题翻译：制造墨粉和墨粉的方法
公开(公告)号：JP2011118174A
公开(公告)日：2011-06-16
申请号：JP2009275819
申请日：2009-12-03
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMASHITA YUJI , SHIBA MASANA , SHIMODA NAOTO , SUGIMOTO TSUTOMU , OGAWA SATORU , AWAMURA JUNICHI , NAGATOMO NOBUYASU
IPC分类号： G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing toner which is excellent in transfer efficiency even when being subject to mechanical stress for a long period, and the toner obtained by the method of manufacturing toner; to provide a developer having the toner; and to provide an image forming method using the developer. SOLUTION: The method of manufacturing toner includes: a step of dissolving or dispersing toner material including a binder resin and/or a precursor of the binder resin into an organic solvent to prepare a first liquid; a step of emulsifying or dispersing the first liquid into an aqueous medium to prepare a second liquid; and a step of removing the organic solvent from the second liquid, wherein, when preparing the second liquid, an aqueous dispersing liquid of particles including polyester is added into the aqueous medium, the binder resin includes polyester, the precursor of the binder resin includes a compound having an active hydrogen group and polyester prepolymer having a functional group capable of reacting with the active hydrogen group, and the difference of acid values of the polyester contained in particles and the polyester contained in the binder resin is 1 to 50 mgKOH/g. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供即使长期受到机械应力的转印效率优异的调色剂的制造方法和通过调色剂的制造方法获得的调色剂; 以提供具有调色剂的显影剂; 并提供使用显影剂的图像形成方法。解决方案：制造调色剂的方法包括：将包括粘合剂树脂和/或粘合剂树脂的前体的调色剂材料溶解或分散到有机溶剂中以制备第一液体的步骤; 将第一液体乳化或分散到水性介质中以制备第二液体的步骤; 以及从所述第二液体除去有机溶剂的步骤，其中，当制备所述第二液体时，将包含聚酯的颗粒的水性分散液添加到所述水性介质中，所述粘合剂树脂包括聚酯，所述粘合剂树脂的前体包括具有活性氢基团的化合物和具有能够与活性氢基团反应的官能团的聚酯预聚物，并且颗粒中所含的聚酯的酸值和粘合剂树脂中所含的聚酯的酸值之差为1至50mgKOH / g。版权所有（C）2011，JPO＆INPIT

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