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41. 发明专利

JP2011203717A Electrostatic charge developing toner 有权
标题翻译：静电充电发电机
公开(公告)号：JP2011203717A
公开(公告)日：2011-10-13
申请号：JP2011014780
申请日：2011-01-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KUSAHARA TERUKI , AWAMURA JUNICHI , SUGIMOTO TSUTOMU , SHU HYO , SUZUKI TOMOMI , UCHINOKURA OSAMU , HONDA TAKAHIRO , KOJIMA TOMOYUKI , OGAWA SATORU , INOUE DAISUKE , SATO YUKIFUMI , ITO DAISUKE , YOSHIDA RYUTA , SATO SACHIKO
IPC分类号： G03G9/087 , G03G9/08 , G03G9/10 , G03G15/08
CPC分类号： G03G9/0821 , G03G9/08755 , G03G9/08782 , G03G9/08795 , G03G9/08797
摘要： PROBLEM TO BE SOLVED: To provide an electrostatic charge image developing toner which is excellent in the image quality, cleanability and coloring property of an image and in low temperature fixability and toner preservability, in a recycling system using a color toner.SOLUTION: The electrostatic charge developing toner is obtained by granulation from a dispersion in which an oil phase containing a toner composition in an organic solvent is dispersed in an aqueous medium. A binder resin in the toner composition contains a low molecular resin component, wherein a resin softening coefficient (A) of the low molecular resin component represented by expression: A=|(lnG'(r1)-lnG'(r2))/(T1-T2)| is >0.165, and when a flow start temperature (°C) of the low molecular resin component measured with an elevated flow tester is designated as Tfb, a storage modulus (dyne/cm) G'(Tfb) is ≤1×10. In the expression, T1 is a temperature (°C) at which a storage modulus G'(r1) becomes 1×10(dyne/cm), and T2 is a temperature (°C) at which a storage modulus G'(r2) becomes 1×10, as measured with a rheometer at a frequency of 1 Hz and a strain of 1 deg.
摘要翻译：要解决的问题：提供一种在使用彩色调色剂的回收系统中提供图像质量，图像的清洁性和着色性以及低温定影性和调色剂保存性的静电电荷图像显影调色剂。溶液：静电通过将含有有机溶剂中的调色剂组合物的油相分散在水性介质中的分散体造粒得到电荷显影调色剂。调色剂组合物中的粘合剂树脂含有低分子量树脂组分，其中由式A = |（lnG'（r1）-lnG'（r2））/（ T1-T2）| > 0.165，并且当用升高的流动测试仪测量的低分子量树脂组分的流动开始温度（℃）被指定为Tfb时，储能模量（dyne / cm）G'（Tfb）≤1×10。在该表达式中，T1是储能模量G'（r1）变为1×10（dyne / cm）的温度（℃），T2是储存模量G'（r2）的温度（℃））变为1×10，如用流变仪在1Hz的频率和1度的应变下测量的。

42. 发明专利

JP2010097201A Toner and image forming method 审中-公开
标题翻译：调色剂和图像形成方法
公开(公告)号：JP2010097201A
公开(公告)日：2010-04-30
申请号：JP2009206566
申请日：2009-09-08
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAGATOMO NOBUYASU , SASAKI FUMIHIRO , UCHINOKURA OSAMU , KOJIMA TOMOYUKI , IWAMOTO YASUTAKA , SHU HYO , WATANABE SHINKO , WATANABE MASAKI
IPC分类号： G03G9/08 , G03G9/087 , G03G21/10
摘要： PROBLEM TO BE SOLVED: To provide a toner and an image forming method which suppress problematic filming and provide an image with high image quality and temporal stability, even in an image forming apparatus with a two-component development system adopting a non-contact AC roller charging system excellent in charge uniformity and charge controllability. SOLUTION: The toner is obtained by externally adding an external additive to a base toner comprising at least a resin and a colorant, wherein the toner contains composite fine particles comprising at least inorganic fine particles and a lubricant. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决问题的方案为了提供一种抑制有问题的成膜并提供具有高图像质量和时间稳定性的图像的调色剂和图像形成方法，即使在采用非成像方式的双组分显影系统的图像形成装置中，接触式AC辊充电系统具有优异的电荷均匀性和电荷可控性。解决方案：调色剂通过向包含至少一种树脂和着色剂的基础调色剂外部添加外部添加剂而获得，其中调色剂含有至少包含无机细颗粒和润滑剂的复合细颗粒。版权所有（C）2010，JPO＆INPIT

43. 发明专利

JP2009210962A Toner, developer, image forming method, process cartridge, and image forming apparatus 审中-公开
标题翻译：调色剂，开发商，图像形成方法，过程盒和图像形成装置
公开(公告)号：JP2009210962A
公开(公告)日：2009-09-17
申请号：JP2008055832
申请日：2008-03-06
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAGATOMO NOBUYASU , UCHINOKURA OSAMU , KOJIMA TOMOYUKI , YAMAZAKI AIKO , SASAKI FUMIHIRO
IPC分类号： G03G9/087 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide a toner containing an external additive and toner base particles produced by a polymerization method of forming particles by emulsifying an oil phase in an aqueous medium, wherein a high quality image can be formed even in a high temperature and high humidity environment, and to provide a developer, an image forming method, a process cartridge and an image forming apparatus using the toner. SOLUTION: The toner comprises toner base particles, an external additive and porous particles having a specific surface area of 50 to 1,000 m 2 /g and pores on the surfaces and inner portions. The toner base particles are obtained by dissolving or dispersing a toner composition containing a compound having at least an active hydrogen group and a polyester resin reactive with the active hydrogen group, in an organic solvent to obtain a solution or a dispersion liquid, then dispersing the solution or the dispersion liquid in an aqueous medium containing resin particles, and reacting the polyester resin with the compound having active hydrogen groups in the aqueous medium. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种含有外部添加剂的调色剂和通过在水性介质中乳化油相来形成颗粒的聚合方法制备的调色剂基础颗粒，其中甚至可以形成高质量的图像温度和高湿度环境，并且提供使用该调色剂的显影剂，图像形成方法，处理盒和图像形成装置。调色剂包括调色剂基础颗粒，外部添加剂和比表面积为50至1000μm2 / SP / g的多孔颗粒和表面和内部部分上的孔。调色剂基础颗粒通过将含有至少具有活性氢基团的化合物和与活性氢基团反应的聚酯树脂的调色剂组合物溶解或分散在有机溶剂中而获得溶液或分散液而获得，然后将溶液或分散液在含有树脂颗粒的水性介质中反应，并使聚酯树脂与含水介质中具有活性氢基团的化合物反应。版权所有（C）2009，JPO＆INPIT

44. 发明专利

JP2008233117A Toner for electrostatic charge image development and image forming apparatus 审中-公开
标题翻译：静电充电图像开发和图像形成装置的调色剂
公开(公告)号：JP2008233117A
公开(公告)日：2008-10-02
申请号：JP2007067944
申请日：2007-03-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAGATOMO NOBUYASU , WATANABE SHINKO , UCHINOKURA OSAMU , KOJIMA TOMOYUKI
IPC分类号： G03G9/087 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide a toner for electrostatic latent image development free from toner scattering or fogging on a photoreceptor, having excellent transfer efficiency and less transfer residual toner and giving a high-quality image and having excellent filming resistance. SOLUTION: The toner for electrostatic charge image development includes base particles composed of a colorant and a binder resin, and n kinds of external additives, and is characterized in that: when a light emission voltage caused by carbons derived from the binder resin and a light emission voltage caused by carbons derived from the external additive in the toner are represented by emission voltages X and Y, respectively, and when a plurality of points indicating the emission voltages X and Y are plotted on an XY coordinates plane and approximated by a curve of X to the power of 2/3 that passes on the origin, the absolute deviation in the distance between the approximated curve and the plurality of points is ≤0.15; the specific surface area St of the toner for electrostatic charge image development satisfies an expression (1): Sm+0.7Σ(Sn*Xn) COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种静电潜像显影用调色剂，在感光体上没有调色剂飞散或起雾，具有优异的转印效率和较少的转印残留调色剂，并且提供高质量的图像并且具有优异的耐成膜性。解决方案：用于静电荷图像显影的调色剂包括由着色剂和粘合剂树脂组成的基础颗粒和n种外部添加剂，其特征在于：当由粘合剂树脂衍生的碳引起的发光电压并且由发光电压X和Y分别表示由调色剂中的外部添加剂产生的碳引起的发光电压，并且当指示发射电压X和Y的多个点被绘制在XY坐标平面上并且近似于通过原点的X与2/3的幂的曲线，近似曲线与多个点之间的距离的绝对偏差≤0.15; 用于静电荷图像显影的调色剂的比表面积St满足式（1）：Sm +0.7Σ（Sn * Xn）

45. 发明专利

JP2008102503A Image forming device and process cartridge 审中-公开
标题翻译：图像形成装置和过程盒
公开(公告)号：JP2008102503A
公开(公告)日：2008-05-01
申请号：JP2007237681
申请日：2007-09-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KOJIMA TOMOYUKI , WATANABE SHINKO , UCHINOKURA OSAMU , NAGATOMO NOBUYASU
IPC分类号： G03G9/087 , G03G9/08 , G03G21/10
摘要： PROBLEM TO BE SOLVED: To provide an image forming device capable of obtaining high image quality with superior microdot reproducibility and restraining cleaning failures, without wearing cleaning blade and obtain high reliability. SOLUTION: The image forming device comprises an image carrier, a charging means, an exposure means, a developing means, a transfer means, a fixing means and a cleaning means. With respect to these cleaning means is a blade-like elastic member to keep the top end part abutting against the image carrier so that the contact part of the image carrier and the elastic member has a surface pressure of 2 MPa to 6 MPa. The toner, granulated by a water system having an average value for the form factor SF-1 to be in the range of 130 to 160, includes a layer-like inorganic mineral that has at least a part of interlayer ions thereof, modified by organic ions. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够以优异的微点重现性和抑制清洁故障获得高图像质量的图像形成装置，而不需要佩戴清洁刮刀并获得高可靠性。图像形成装置包括图像载体，充电装置，曝光装置，显影装置，转印装置，固定装置和清洁装置。关于这些清洁装置，为了保持顶端部抵靠图像载体，使得图像载体的接触部分和弹性部件的表面压力为2MPa〜6MPa，为叶片状的弹性部件。由形状系数SF-1的平均值在130〜160范围内的水系造粒的调色剂包括具有至少一部分层间离子的层状无机矿物，被有机物修饰离子。版权所有（C）2008，JPO＆INPIT

46. 发明专利

JP2008096993A Toner, toner-containing container, developer, image forming apparatus, process cartridge and image forming method 有权
标题翻译：调色剂，含有容纳容器，开发者，图像形成装置，处理盒和图像形成方法
公开(公告)号：JP2008096993A
公开(公告)日：2008-04-24
申请号：JP2007239495
申请日：2007-09-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAGATOMO NOBUYASU , WATANABE SHINKO , UCHINOKURA OSAMU , KOJIMA TOMOYUKI
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a toner and a developer excellent in cleaning property and low-temperature fixability and capable of forming a high-quality image. SOLUTION: The toner includes at least a modified layered inorganic material in which at least part of interlayer ions is replaced with an organic ion as a toner composition, wherein the toner is surface-coated with a fatty acid metal compound. The toner is prepared by coating a surface of toner base particles with a fatty acid metal compound and depositing an external additive different from the fatty acid metal compound on the surface. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供清洁性和低温定影性优异且能够形成高质量图像的调色剂和显影剂。解决方案：调色剂包括至少一种改性的层状无机材料，其中至少部分层间离子被有机离子替代为调色剂组合物，其中调色剂用脂肪酸金属化合物进行表面包覆。通过用脂肪酸金属化合物涂覆调色剂基础颗粒的表面并在表面上沉积不同于脂肪酸金属化合物的外部添加剂来制备调色剂。版权所有（C）2008，JPO＆INPIT

47. 发明专利

JP2008096976A Toner and method for producing toner, and developer using toner 有权
标题翻译：用于生产墨粉的调色剂和方法，以及使用墨粉的开发者
公开(公告)号：JP2008096976A
公开(公告)日：2008-04-24
申请号：JP2007217825
申请日：2007-08-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： WATANABE SHINKO , YAMADA MASAHIDE , UCHINOKURA OSAMU , NAGATOMO NOBUYASU , KOJIMA TOMOYUKI
IPC分类号： G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide: toner having an excellent heat resistant storage property and a low temperature fixability compatibly and capable of obtaining a high image quality; an efficient method for producing the toner; a developer capable of obtaining a high image quality by using the toner; a toner container; a processing cartridge; an image forming apparatus; and an image forming method. SOLUTION: The toner, which contains a binder resin having at least two of molecular-weight components, is granulated in an aqueous medium. Meanwhile, the binder resin is produced by a reaction that increases the molecular weight along with the granulation. The toner has a weight average molecular weight Mw t of 8,500 to 17,000 in a molecular weight distribution of a component by gel permeation chromatography (GPC), wherein the component is tetrahydrofuran (THF) of the toner and is extracted by the soxhlet extraction. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供：具有优异的耐热储存性能和低温定影性的调色剂，能够获得高图像质量; 用于生产调色剂的有效方法; 能够通过使用调色剂获得高图像质量的显影剂; 调色剂容器; 处理盒; 图像形成装置; 和图像形成方法。溶液：含有具有至少两种分子量组分的粘合剂树脂的调色剂在水性介质中造粒。同时，粘合剂树脂通过增加分子量以及造粒的反应来制备。调色剂通过凝胶渗透色谱法（GPC）测定组分的分子量分布中的重均分子量Mw t 8,500至17,000，其中组分是调色剂的四氢呋喃（THF），并且为通过索格利特提取提取。版权所有（C）2008，JPO＆INPIT

48. 发明专利

JP2007199655A Electrostatic charge image developing toner and developer, image forming method using this toner and image forming apparatus 有权
标题翻译：静电充电图像开发调色剂和显影剂，使用这种调色剂和图像形成装置的图像形成方法
公开(公告)号：JP2007199655A
公开(公告)日：2007-08-09
申请号：JP2006166327
申请日：2006-06-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAITO AKINORI , EMOTO SHIGERU , WATANABE SHINKO , YAMADA MASAHIDE , OKI MASAHIRO , INOUE RYUTA , WAKAMATSU SHINICHI , SUZUKI TOMOMI , SAWADA TOYOSHI , SESHIMO TAKUYA , NAGATOMO NOBUYASU , KOJIMA TOMOYUKI
IPC分类号： G03G9/08 , G03G9/087 , G03G21/10
摘要： PROBLEM TO BE SOLVED: To provide an electrostatic charge image developing toner which is capable of obtaining a high-quality image excellent in fine dot reproduction and is excellent in low-temperature fixing property and cleaning property, to provide a developer comprising the electrostatic charge image developing toner, to provide a manufacturing method of the electrostatic charge image developing toner, and to provide an image forming apparatus and an image forming method using the electrostatic charge image developing toner. SOLUTION: An organic solution or a dispersion liquid of toner raw material prepared by dissolving or dispersing toner raw material comprising: a binder resin component; a prepolymer consisting of modified polyester type resin; a reactive compound which performs extension or crosslinking with the prepolymer; a coloring agent; a releasing agent; and a laminar inorganic mineral in which interlayer ions are modified by organic ions, into an organic solvent has a Casson yield value at 25 °C of 1 to 100 Pa. The electrostatic charge image developing toner is obtained by subjecting the prepolymer and the reactive compound to crosslinking reaction and/or extension reaction in an aqueous medium and removing the solvent from the obtained dispersion liquid, wherein the ratio Dv/Dn of volume average particle size (Dv) of the toner to the number average particle size (Dn) thereof is 1.00 to 1.30 and the shape factor SF-1 is 140 to 200. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：为了提供一种静电荷图像显影用调色剂，其能够获得细小点再现性优异的图像，并且具有优异的低温定影性和清洁性，从而提供包含静电荷图像显影调色剂，以提供静电荷图像显影调色剂的制造方法，并提供使用静电荷图像显影调色剂的图像形成装置和图像形成方法。调色剂原料通过将调色剂原料溶解或分散而成的有机溶液或分散液，包括：粘合剂树脂组分; 由改性聚酯型树脂组成的预聚物; 与预聚物进行延伸或交联的反应性化合物; 着色剂; 脱模剂; 层间离子被有机离子改性为有机溶剂的层状无机矿物，在25℃下的Casson屈服值为1〜100Pa，通过使预聚物和反应性化合物在水性介质中交联反应和/或延伸反应并从所得分散液中除去溶剂，其中调色剂的体积平均粒径（Dv）与数均粒径（Dn）之比Dv / Dn为 1.00至1.30，形状系数SF-1为140至200.版权所有（C）2007，JPO＆INPIT

49. 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。

50. 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。

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