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1. 发明专利

JP2011100017A Toner, and developer, image forming method, image forming apparatus and process cartridge using the toner 有权
标题翻译：调色剂和显影剂，图像形成方法，图像形成装置和使用色调剂的处理盒
公开(公告)号：JP2011100017A
公开(公告)日：2011-05-19
申请号：JP2009255134
申请日：2009-11-06
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAKAJIMA YUKIKO , KOBAN AKIHIRO , MORIYA YOSHIHIRO , INOUE RYUTA , SABE AKIYOSHI , OSAKA KEIKO , SAKASHITA SHINGO , YAMAUCHI SHOKEI , YAMASHITA DAIKI
IPC分类号： G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a toner having superior low-temperature fixing properties, proper charging stability in long-term agitation and favorable charging stability against changes in the use environment, such as temperature and humidity, while securing hot offset resistance and heat-resistant storage properties, even when a resin having a polyhydroxycarboxylic acid skeleton is used, and to provide a developer, an image forming method, an image forming apparatus and a process cartridge that use the toner. SOLUTION: The toner contains resin particles (C), which contain a first resin (a) and resin particles (B) containing a second resin (b), wherein the resin (a) is made of a polyurethane-acryl polymer composite and adheres to the surfaces of the resin fine particles, and the resin (b) has an amorphous polyhydroxycarboxylic acid skeleton. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的低温定影性能的调色剂，长时间搅拌中的适当的充电稳定性以及抵抗使用环境如温度和湿度的变化的良好的充电稳定性，同时确保热偏移电阻耐热储存性能，即使使用具有聚羟基羧酸骨架的树脂，也可提供使用该调色剂的显影剂，图像形成方法，图像形成装置和处理盒。调色剂含有含有第一树脂（a）的树脂颗粒（C）和含有第二树脂（b）的树脂颗粒（B）），其中树脂（a）由聚氨酯丙烯酸聚合物复合并粘附到树脂细颗粒的表面，树脂（b）具有无定形的多羟基羧酸骨架。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2011064833A Electrophotographic carrier, electrophotographic developer, image forming method, image forming apparatus, process cartridge, and container containing developer 审中-公开
标题翻译：电子印刷载体，电子显影开发商，图像形成方法，图像形成装置，工艺盒和含有开发商的容器
公开(公告)号：JP2011064833A
公开(公告)日：2011-03-31
申请号：JP2009213846
申请日：2009-09-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MORIYA YOSHIHIRO , KOBAN AKIHIRO , YAMAUCHI SHOKEI
IPC分类号： G03G9/113 , G03G15/09
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic carrier having a coating layer, in which a charge amount is adjustable in a desired range, and to provide a two-component developer using the carrier, an electrophotographic developer having the two-component developer, an image forming method, an image forming apparatus, a process cartridge and a container containing the developer.
SOLUTION: The electrophotographic carrier includes a core material and a coating layer on the surface of the core material, formed by using a coating layer liquid containing at least a binder resin or a binder resin precursor and a solvent. The binder resin or the binder resin precursor contains (A) a diisocyanate compound, (B) two or more kinds of amino group-modified polysiloxane having different chain length from each other, and (C) at least one type of silsesquioxane in a cage-type silsesquioxane having a three-dimensional polyhedral structure and a cage-type silsesquioxane partial cleavage structure.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供具有涂层的电子照相载体，其中电荷量可以在期望的范围内调节，并提供使用载体的双组分显影剂，具有双组分的电子照相显影剂显影剂，图像形成方法，图像形成装置，处理盒和容纳显影剂的容器。解决方案：电子照相载体包括芯材和在芯材表面上的涂层，其通过使用至少含有粘合剂树脂或粘合剂树脂前体和溶剂的涂层液形成。粘合剂树脂或粘合剂树脂前体含有（A）二异氰酸酯化合物，（B）两种以上彼此不同链长的氨基改性聚硅氧烷，（C）笼中的至少一种倍半硅氧烷型倍半硅氧烷，具有三维多面体结构和笼型倍半硅氧烷部分裂解结构。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2011059603A Toner for electrostatic charge latent image development and method for producing the toner, developer, image forming apparatus, image forming method and process cartridge using the toner 有权
标题翻译：用于静电荷照射图像发展的调色剂和用于生产调色剂，显影剂，图像形成装置，图像形成方法和使用调色剂的方法的方法
公开(公告)号：JP2011059603A
公开(公告)日：2011-03-24
申请号：JP2009212168
申请日：2009-09-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： INOUE RYUTA , KOBAN AKIHIRO , MORIYA YOSHIHIRO , SABE AKIYOSHI , SAKASHITA SHINGO , OSAKA KEIKO , NAKAJIMA YUKIKO , YAMAUCHI SHOKEI
IPC分类号： G03G9/087 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide a toner for electrostatic charge latent image development and a method for producing the toner, capable of maintaining hot offset resistance, although the toner contains a resin having a polyhydroxy carboxylic acid skeleton comprising an optically active monomer, and having excellent low temperature fixing property, giving an image with good image density and a haze degree, and having good heat-resistant storage property, and to provide a developer, an image forming apparatus, an image forming method and a process cartridge using the developer.
SOLUTION: The toner for electrostatic charge latent image development contains a binder resin, a colorant and a releasing agent, wherein the binder resin comprises a polyester resin (a) having crystallinity and no polyhydroxy carboxylic acid skeleton comprising an optically active monomer and a resin (b) having the polyhydroxy carboxylic acid skeleton. The polyhydroxy carboxylic acid skeleton in the resin (b) has an optical purity X(%)=|X(L-form)-X(D-form)| of not more than 80% calculated on the monomer basis. In above expression, X(L-form) and X(D-form) represent a L-form ratio (mol%) and a D-form ratio (mol%), respectively, calculated on the optically active monomer basis.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供静电荷潜像显影用调色剂和能够保持耐热胶印性的方法，虽然调色剂含有具有包含光学活性单体的多羟基羧酸骨架的树脂并且具有优异的低温定影性能，给出具有良好图像密度和雾度的图像，并且具有良好的耐热储存性能，并提供显影剂，图像形成装置，图像形成方法和处理盒，其使用开发商用于静电荷潜像显影的调色剂含有粘合剂树脂，着色剂和脱模剂，其中粘合剂树脂包括具有结晶性的聚酯树脂（a），不含有光学活性单体的多羟基羧酸骨架，具有多羟基羧酸骨架的树脂（b）。树脂（b）中的多羟基羧酸骨架的光学纯度X（％）=¾X（L型）-X（D型）¾为基于单体计算的不大于80％。在上述表达式中，X（L型）和X（D型）分别表示基于光学活性单体计算的L型比（mol％）和D型比（mol％）。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2011053657A Toner, developer, image forming method, and image forming apparatus 有权
标题翻译：调色剂，开发者，图像形成方法和图像形成装置
公开(公告)号：JP2011053657A
公开(公告)日：2011-03-17
申请号：JP2010163613
申请日：2010-07-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAKAJIMA YUKIKO , KOBAN AKIHIRO , INOUE RYUTA , SABE AKIYOSHI , SAKASHITA SHINGO , OSAKA KEIKO
IPC分类号： G03G9/087 , G03G9/08
CPC分类号： G03G9/08797 , G03G9/08708 , G03G9/08726 , G03G9/08755 , G03G9/08764
摘要： PROBLEM TO BE SOLVED: To provide a toner which is superior in low-temperature fixability while securing hot offset resistance and heat-resistant preservability even in the case of the use of a polylactic acid and has high charge stability against variations of a use environment such as fluidity, image density, haze, temperature, and humidity; and to provide a developer, an image forming method, and the image forming apparatus which use the toner.
SOLUTION: The toner contains resin particles (C) having: a first resin (a1) and a second resin (a2) different in glass transition points; and resin particles (B) containing a third resin (b), wherein the first resin (a1) and the second resin (a2) are deposited on surfaces of the resin particles (B), and the third resin (b) has a noncrystalline polyhydroxycarboxylic acid skeleton.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：即使在使用聚乳酸的情况下，也提供了具有优异的低温定影性的调色剂，同时确保耐热粘合性和耐热保存性，并且具有高的电荷稳定性使用环境如流动性，影像密度，雾度，温度和湿度; 并提供显影剂，图像形成方法和使用调色剂的图像形成装置。调色剂含有具有玻璃化转变点不同的第一树脂（a1）和第二树脂（a2）的树脂粒子（C）和含有第三树脂（b）的树脂颗粒（B），其中第一树脂（a1）和第二树脂（a2）沉积在树脂颗粒（B）的表面上，并且第三树脂（b）具有非结晶聚羟基羧酸骨架。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2011048176A Toner and developer 有权
标题翻译：调色板和开发者
公开(公告)号：JP2011048176A
公开(公告)日：2011-03-10
申请号：JP2009196952
申请日：2009-08-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAUCHI SHOKEI , MORIYA YOSHIHIRO , INOUE RYUTA , SAKASHITA SHINGO , OSAKA KEIKO , SABE AKIYOSHI , NAKAJIMA YUKIKO , KOBAN AKIHIRO
IPC分类号： G03G9/087 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide toner capable of securing hot offset resistance, having excellent low temperature fixability and stable image density without inducing filming on a photoreceptor, giving an image having a favorable haze degree and environmental stability, and having good heat-resistant storage property; and to provide a developer using the toner. SOLUTION: (1) The toner contains a resin (b) having a polyhydroxy carboxylic acid skeleton and a grafted polymer comprising at least a polyolefin resin and a vinyl resin. (2) The toner described in (1) contains resin particles (C) having such a structure that resin particles (A) containing a resin (a) adhere to the surfaces of resin particles (B) containing the resin (b) having a polyhydroxy carboxylic acid skeleton. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供能够确保耐热抵抗性的调色剂，具有优异的低温定影性和稳定的图像浓度，而不会在感光体上引起成膜，从而产生具有良好的雾度和环境稳定性并具有良好热量的图像耐储存性; 并提供使用调色剂的显影剂。解决方案：（1）调色剂含有具有多羟基羧酸骨架的树脂（b）和至少包含聚烯烃树脂和乙烯基树脂的接枝聚合物。（2）（1）所述的调色剂含有树脂粒子（C），其具有如下结构：含有树脂（a）的树脂粒子（A）与含有树脂（b）的树脂粒子（B）的表面粘合，多羟基羧酸骨架。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2010230836A Electrophotographic carrier, electrophotographic two-component developer, and image forming method 有权
标题翻译：电子显影载体，电子双组分显影剂和图像形成方法
公开(公告)号：JP2010230836A
公开(公告)日：2010-10-14
申请号：JP2009076479
申请日：2009-03-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAKASHITA SHINGO , KOBAN AKIHIRO , MORIYA YOSHIHIRO , YAMAUCHI SHOKEI
IPC分类号： G03G9/113 , G03G9/10
摘要： PROBLEM TO BE SOLVED: To provide a carrier which has a uniform coating layer having a desired low resistance value on a carrier core material surface, and prevents toner spent, scraping of a carrier coating layer, and resultant color fading of toner even in long-time stirring, and to provide a developer using this carrier.
SOLUTION: The carrier comprises core material particles comprising at least a magnetic material, and a coating layer formed on the surface of the core material particles. The coating layer is formed by using at least (i) a colloidal silica, (ii) a condensate of alkoxysilane expressed by general formula (1): Si(R
1 )
a (R
2 )
4-a , (iii) phosphorus-doped conductive tin oxide fine particles comprising free particles of a phosphorus-doped tin oxide, and a coating layer liquid including a solvent, and a colloidal silica content of the coating layer is
摘要翻译：要解决的问题：提供一种在载体芯材表面上具有期望的低电阻值的均匀涂层的载体，并且防止调色剂消耗，载体涂层的刮擦，以及调色剂的均匀褪色甚至在长时间的搅动下，并提供使用这种承运人的开发商。解决方案：载体包括至少包含磁性材料的芯材颗粒和形成在芯材颗粒表面上的涂层。通过使用至少（i）胶体二氧化硅，（ii）由通式（1）表示的烷氧基硅烷的缩合物：Si（R 1 SPX），SB a a / （ⅲ）含磷掺杂氧化锡的游离颗粒的磷掺杂的导电氧化锡细颗粒和涂层液体包括溶剂，涂层的胶体二氧化硅含量<60质量％。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2010217629A Electrophotographic carrier, electrophotographic two-component developer and image forming method 有权
标题翻译：电子显影载体，电子成像双组分显影剂和图像形成方法
公开(公告)号：JP2010217629A
公开(公告)日：2010-09-30
申请号：JP2009065566
申请日：2009-03-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAKASHITA SHINGO , KOBAN AKIHIRO , MORIYA YOSHIHIRO , YAMAUCHI SHOKEI
IPC分类号： G03G9/113
摘要： PROBLEM TO BE SOLVED: To provide a carrier which has a uniform coating layer with a desired low resistance value formed on a surface of a carrier core material, and which suppresses toner spent, film shaving of the carrier coating layer and color staining with a toner caused thereby, even in long-time agitation. SOLUTION: The photographic carrier is made by coating the surface of a core material particle made of a magnetic material with the coating layer containing at least a binder resin and conductive particulates. The binder resin has a segment (A) containing one or two or more kinds of polymerizable vinyl monomer as a structure unit, and a segment (B) containing a partial cleavage structure of cage silsesquioxane as a structure unit, and the conductive particulates are phosphorus-doped conductive tin oxide particulates composed of free particles of tin oxide doped with phosphorus. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种载体，其具有在载体芯材的表面上形成的具有期望的低电阻值的均匀的涂层，并且抑制着色剂消耗，载体涂层的刮膜和着色染色即使在长时间的搅动下也会引起调色剂。解决方案：照相载体通过涂覆由磁性材料制成的芯材料颗粒的表面而制成，涂层至少含有粘合剂树脂和导电颗粒。粘合剂树脂具有含有一种或两种以上可聚合乙烯基单体作为结构单元的链段（A）和含有作为结构单元的笼形倍半硅氧烷的部分断裂结构的链段（B），导电性微粒为磷掺杂有磷的氧化锡的自由颗粒构成的掺杂的导电氧化锡颗粒。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2010217606A Carrier for electrophotography and two-component developer 审中-公开
标题翻译：电子绘图和双组分开发商的承运人
公开(公告)号：JP2010217606A
公开(公告)日：2010-09-30
申请号：JP2009065300
申请日：2009-03-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MORIYA YOSHIHIRO , KOBAN AKIHIRO , SAKASHITA SHINGO , YAMAUCHI SHOKEI
IPC分类号： G03G9/113
摘要： PROBLEM TO BE SOLVED: To provide a carrier for preventing deterioration in image quality due to toner spent to a cover resin and improving durability thereof, to provide a two-component developer using the carrier, and to provide an image forming apparatus, a process cartridge, and a container with developer, provided with the two-component developer. SOLUTION: The carrier for electrophotography has a core material and a cover layer formed on the surface of the core material by using a cover layer liquid at least containing a binder resin or a binder resin precursor and a solvent. The carrier contains at least a maleimide and/or a diisocyanate compound (A), a both-terminal amino group modified polysiloxane (B), and at least one kind of silsesquioxane (C) made of a cage silsesquioxane and/or a partial cleavage structure of cage silsesquioxane which has at least one epoxy ring in one molecule. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于防止由于花费在覆盖树脂上的调色剂而导致的图像质量劣化并提高其耐久性的载体，以提供使用该载体的双组分显影剂，并提供一种图像形成装置，处理盒和具有显影剂的容器，设置有双组分显影剂。解决方案：用于电子照相的载体具有通过使用至少含有粘合剂树脂或粘合剂树脂前体和溶剂的覆盖层液体在芯材的表面上形成的芯材料和覆盖层。载体至少含有马来酰亚胺和/或二异氰酸酯化合物（A），双末端氨基改性聚硅氧烷（B）和由笼形倍半硅氧烷制成的至少一种倍半硅氧烷（C）和/或部分裂解在一个分子中具有至少一个环氧环的笼型倍半硅氧烷的结构。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2010055045A Image forming toner, developer, toner containing receptacle, image forming apparatus, image forming method and process cartridge 有权
标题翻译：图像形成调色剂，开发者，包含记忆体的图像，图像形成装置，图像形成方法和过程盒
公开(公告)号：JP2010055045A
公开(公告)日：2010-03-11
申请号：JP2008289916
申请日：2008-11-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAWADA TOYOSHI , KOBAN AKIHIRO , NAKAYAMA SHINYA , SABE AKIYOSHI
IPC分类号： G03G9/087 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide toner, having excellent low-temperature fixability, offset resistance and heat resisting preservability at the same time, and also having excellent fixing and releasing performance and durability. SOLUTION: The image forming toner at least includes a coloring agent, binder resin and a mold releasing agent. As the binder resin, cyclization rubber with a cyclization rate of 50-75% is included. As the mold releasing agent, at least wax (A) having a melting point of 50-85°C and wax (B) having a melting point of 70-150°C and lower compatibility with the cyclization rubber than the wax (A) is included. An inorganic fine particle is included in the interior of toner. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供同时具有优异的低温定影性，抗偏移性和耐热保存性的调色剂，并且还具有优异的定影和剥离性能和耐久性。图像形成调色剂至少包括着色剂，粘合剂树脂和脱模剂。作为粘合剂树脂，包括环化率为50-75％的环化橡胶。作为脱模剂，至少蜡（A）的熔点为50-85℃，蜡（B）的熔点为70-150℃，与环化橡胶的相溶性低于蜡（A）已经包括了。无机细颗粒包含在调色剂的内部。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2009189935A Apparatus for treating powder 有权
标题翻译：用于处理粉末的装置
公开(公告)号：JP2009189935A
公开(公告)日：2009-08-27
申请号：JP2008032227
申请日：2008-02-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KINOSHITA NAOTOSHI , KOBAN AKIHIRO , MORIYA YOSHIHIRO , INOUE RYUTA
IPC分类号： B01J2/00 , B01J2/16
摘要： PROBLEM TO BE SOLVED: To provide an apparatus in which a fine particle having ≤100 μm particle diameter can be subjected sufficiently to spray coating treatment without being agglomerated. SOLUTION: The apparatus for treating powder is provided with: a powder vessel having an upper opening; a spray nozzle for supplying a liquid material into the powder vessel; a treatment vessel 20 arranged in the powder vessel; a suction blower which has an impeller 23, that is arranged close to a part of the inner wall surface of a screen member 21 of the treatment vessel 20 in the circumferential direction and is rotated relatively to the inner wall surface of the screen member 21 to impart shearing force to the powder existing in a clearance part, and in which an air flow going upward from an air passable plate 6 arranged in the lower part of the treatment vessel 20 is produced; a filter bag arranged in the upper part of the treatment vessel 20 for hindering powder from passing therethrough and discharging only air from the powder vessel; and two slits 21a which are arranged on the screen member 21 and are discharge ports each having the open area larger than that of a mesh of a screen. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以充分施加具有≤100μm粒径的细颗粒以喷涂涂层处理而不凝聚的装置。解决方案：用于处理粉末的设备设有：具有上部开口的粉末容器; 用于将液体材料供应到所述粉末容器中的喷嘴; 布置在粉末容器中的处理容器20; 具有叶轮23的吸风机，该叶轮23在周向上配置在处理容器20的筛网部件21的内壁面的一部分上并相对于筛网部件21的内壁面旋转至对存在于间隙部中的粉末赋予剪切力，并且制造从设置在处理容器20的下部的可通气板6向上方的气流; 布置在处理容器20的上部的过滤袋，用于阻止粉末通过并且仅从粉末容器排出空气; 以及布置在筛网构件21上的两个狭缝21a，它们的开口面积大于筛网的开口面积。版权所有（C）2009，JPO＆INPIT

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