专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

2. 发明专利

JP2011002480A Electrophotographic photoreceptor, image forming apparatus and process cartridge for image formation 有权
标题翻译：电子照相机，图像形成装置和图像形成过程盒
公开(公告)号：JP2011002480A
公开(公告)日：2011-01-06
申请号：JP2009142962
申请日：2009-06-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KAMI HIDETOSHI , FUJIWARA YUKIO , EGAWA KAZUHIRO
IPC分类号： G03G5/147 , G03G5/00 , G03G5/047 , G03G9/087 , G03G9/09 , G03G21/00
CPC分类号： G03G21/0094 , G03G5/0592 , G03G5/0614 , G03G5/07 , G03G5/071 , G03G5/14786 , G03G5/14791 , G03G2215/00957
摘要： PROBLEM TO BE SOLVED: To extend the lifetimes of an electrophotographic photoreceptor and an image forming apparatus by improving the lubricant accepting property of the high-durability electrophotographic photoreceptor having a cross-linked resin surface layer, and to reduce printing cost.SOLUTION: In an electrophotographic photoreceptor 11 having a photosensitive layer and a cross-linked resin surface layer on a conductive substrate, the cross-linked resin surface layer contains a cross-linking pair having a charge transporting structural unit, and there exist specific relationships with separate arithmetic average roughtnesses of each the total of 12 frequency components including six frequency components ranging from a high frequency component to a low frequency component that are obtained by subjecting a one-dimensional data array, obtained by measuring the concavo-convex configuration of a surface of the electrophotographic photoreceptor with a surface roughness-contour measuring machine, to a wavelet transformation multiresolution analysis, and separate arithmetic average roughnesses of six frequency components that are obtained by a specific method.
摘要翻译：要解决的问题：通过改善具有交联树脂表面层的高耐久性电子照相感光体的润滑剂接受性来延长电子照相感光体和图像形成装置的寿命，并降低打印成本。解决方案：在电子照相感光体11在导电性基板上具有感光层和交联树脂表面层，交联树脂表面层含有具有电荷输送结构单元的交联对，并且与分离的算术平均粗糙度存在特定关系总共12个频率分量中的每一个，包括从高频分量到低频分量的六个频率分量，这些频率分量是通过对通过测量电子照相感光体的表面的凹凸结构获得的一维数据阵列具有表面粗糙度轮廓测量机器，小波变换多分辨率分析，以及通过特定方法获得的六个频率分量的单独算术平均粗糙度。

3. 发明专利

JP2013025021A Electrophotographic photoreceptor, image forming method using the same, image forming apparatus, and process cartridge for image forming apparatus 有权
标题翻译：电子照相机，图像形成方法，图像形成装置和图像形成装置的处理盒
公开(公告)号：JP2013025021A
公开(公告)日：2013-02-04
申请号：JP2011158745
申请日：2011-07-20
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANAKA YUJI , NAGAI KAZUKIYO , SUZUKI TETSUO , KOIIZUKA YUSUKE
IPC分类号： G03G5/07 , G03G5/06 , G03G5/147
CPC分类号： G03G5/07 , G03G5/0605 , G03G5/0609 , G03G5/0614 , G03G5/071 , G03G5/075 , G03G5/076
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor having all of superior mechanical durability of a photoreceptor surface, charge transport property, and stability, in particular to provide a long-life electrophotographic photoreceptor capable of stably outputting a high quality image even under high-humidity and high density oxidized gas exposure conditions, and also provide an image forming method using the electrophotographic photoreceptor, an image forming apparatus, and a process cartridge.SOLUTION: An electrophotographic photoreceptor includes a photosensitive layer on a conductive support. The outermost surface layer of the photosensitive layer contains a three-dimensional cross-linked product obtained through polymerization of a charge-transporting compound (B) having three or more [(tetrahydro-2H-pyran-2-yl) oxy]methyl groups coupled to an aromatic ring and a charge-transporting compound (A) represented by the following formula (1) by reaction in which a part of the [(tetrahydro-2H-pyran-2-yl)oxy]methyl group is cleaved and eliminated.
摘要翻译：要解决的问题：提供一种具有感光体表面的所有机械耐久性，电荷传输性和稳定性的电子照相感光体，特别是提供能够稳定地输出高质量图像的长寿命电子照相感光体在高湿度和高密度氧化气体暴露条件下，还提供使用电子照相感光体，图像形成装置和处理盒的成像方法。电解质感光体包括导电性支持体上的感光层。感光层的最表面层含有通过具有三个或更多个[（四氢-2H-吡喃-2-基）氧基]甲基的电荷输送化合物（B）的聚合而获得的三维交联产物，通过其中[（四氢-2H-吡喃-2-基）氧基]甲基的一部分被切割并除去而进行反应，形成由下式（1）表示的芳环和电荷输送化合物（A）。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2012150403A Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge for image forming apparatus using the same 有权
标题翻译：电子照相机，图像形成方法，图像形成装置和使用其的图像形成装置的处理盒
公开(公告)号：JP2012150403A
公开(公告)日：2012-08-09
申请号：JP2011010766
申请日：2011-01-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANAKA YUJI , NAGAI KAZUKIYO , SUZUKI TETSUO , KOIIZUKA YUSUKE
IPC分类号： G03G5/147 , G03G5/047 , G03G5/06 , G03G5/07
CPC分类号： G03G5/07 , G03G5/0525 , G03G5/0567 , G03G5/0592 , G03G5/0596 , G03G5/0614 , G03G5/076 , G03G5/1476 , G03G5/14769 , G03G5/14791 , G03G5/14795
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor with high durability that exhibits excellent mechanical durability, electrical characteristics, environmental stability, and gas resistance against repeated use, and provides high-quality images with less image failure for a long period, as well as an image forming method, an image forming apparatus and a process cartridge using the electrophotographic photoreceptor.SOLUTION: An electrophotographic photoreceptor includes at least a photosensitive layer on a conductive support. The outermost surface layer of the photosensitive layer is formed of a three-dimensional cross-linked film obtained through polymerization of a compound having three or more [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups on an aromatic ring of a charge transporting compound by reaction in which a part of the [(tetrahydro-2H-pyran-2-yl)oxy]methyl group is cleaved and eliminated. The ionization potential of the three-dimensional cross-linked film is 5.4 or more.
摘要翻译：要解决的问题：为了提供具有优异的机械耐久性，电特性，环境稳定性和耐反复使用的气体阻力的高耐久性的电子照相感光体，并且提供长时间图像故障较少的高质量图像，以及图像形成方法，图像形成装置和使用电子照相感光体的处理盒。解决方案：电子照相感光体在导电性支持体上至少含有感光层。感光层的最外表面层由三维交联膜形成，该三维交联膜通过在芳环上具有三个或更多个[（四氢-2H-吡喃-2-基）氧基]甲基的化合物的聚合而获得通过反应将电荷输送化合物（其中部分[（四氢-2H-吡喃-2-基）氧基]甲基）被切割并除去。三维交联膜的电离电位为5.4以上。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2009229549A Electrophotographic photoreceptor, process cartridge, and image forming apparatus 有权
标题翻译：电子照相机，过程盒和图像形成装置
公开(公告)号：JP2009229549A
公开(公告)日：2009-10-08
申请号：JP2008071840
申请日：2008-03-19
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： IWASAKI MASAHIRO , NUKADA KATSUMI , YAMADA WATARU , IDE KENTA , NAKAMURA HIROSHI , NAKAMURA MITSUHIDE , BANDO KOJI , IEMURA KAORI , HONGO KAZUYA , NIIDA KIYOHIRO
IPC分类号： G03G5/07 , G03G5/06 , G03G5/14 , G03G5/147
CPC分类号： G03G5/076 , G03G5/0612 , G03G5/064 , G03G5/07 , G03G5/071 , G03G5/075 , G03G5/14769
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor in which, even when an outermost surface layer of a photosensitive layer is made thick, wrinkles and unevenness are suppressed, high mechanical strength of the outermost surface layer is obtained, excellent resistance against ghost images is obtained, degradation in electric characteristics and image quality characteristics due to repeated long-term use are suppressed and images are stably obtained. SOLUTION: The electrophotographic photoreceptor is characterized in that: the outermost surface layer of the photosensitive layer includes a crosslinked product using a coating liquid containing at least one selected from guanamine compounds and melamine compounds and at least one kind of charge transporting material having at least one substituent selected from -OH, -OCH 3 , -NH 2 , -SH and -COOH; the solid content concentration of the one kind selected from guanamine compounds and melamine compounds in the coating liquid is 0.1-5 mass%; and the solid content concentration of at least one kind of the charge transporting material in the coating liquid is 90 mass% or more. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种电子照相感光体，其中即使当感光层的最外表面层变厚时，皱纹和凹凸也被抑制，最外表面层的机械强度可以获得优异的抗性获得幻影，抑制由于重复的长期使用引起的电特性和图像质量特性的劣化，并且稳定地获得图像。电子照相感光体的特征在于：感光层的最外表面层包含使用包含选自胍胺化合物和三聚氰胺化合物中的至少一种的涂布液的交联产物和至少一种电荷输送材料，其具有至少一个选自-OH，-OCH 3 S，-NH SB 2，-SH和-COOH的取代基; 选自胍胺化合物和三聚氰胺化合物中的一种的固体成分浓度为0.1〜5质量％。并且涂布液中的至少一种电荷输送材料的固体成分浓度为90质量％以上。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP4335055B2 Image forming method 有权
公开(公告)号：JP4335055B2
公开(公告)日：2009-09-30
申请号：JP2004115639
申请日：2004-04-09
申请人：株式会社リコー
发明人：良一北嶋 , 成人小島 , 直博戸田 , 宏永目 , 佳明河崎 , 英利紙 , 麻衣子近藤
IPC分类号： G03G5/147 , G03G5/05 , G03G5/06 , G03G5/07 , G03G9/08 , G03G9/097 , G03G9/10 , G03G15/08 , G03G15/09
CPC分类号： G03G5/0698 , G03G5/051 , G03G5/0589 , G03G5/0592 , G03G5/07 , G03G9/0827 , G03G9/097 , G03G9/09708
摘要： An image forming method, includes: forming a latent electrostatic image on a latent electrostatic image carrier; developing the latent electrostatic image with a toner to thereby form a visible image; transferring the visible image to a recording medium; and fixing the image transferred to the recording medium. The latent electrostatic image carrier includes: a support, a photoconductive layer on the support, and a surface protective layer on the support. The surface protective layer includes a reactant made by cross-linking the following: an electric charge transporting material which comprises a reactive functional group, a cross-linking resin, and a fluorine surfactant. The toner comprises an inorganic fine particle which defines an effective inorganic fine particle amount in a range of 0.8% by mass to 3.0% by mass calculated from the following equation (1): Effective ⁢ ⁢ inorganic particle ⁢ ⁢ amount ⁢ ⁢ ( % ) = Inorganic ⁢ ⁢ particle ⁢ ⁢ amount ⁢ ⁢ ( % ) SF ⁢ - ⁢ 2 / 100 Equation ⁢ ⁢ ( 1 ) where SF-2 denotes a shape factor of the toner.

7. 发明专利

JP2005196104A Image forming method 有权
标题翻译：图像形成方法
公开(公告)号：JP2005196104A
公开(公告)日：2005-07-21
申请号：JP2004115639
申请日：2004-04-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KONDO MAIKO , NAGAME HIROSHI , KITAJIMA RYOICHI , KAWASAKI YOSHIAKI , KOJIMA SHIGETO , TODA NAOHIRO , KAMI HIDETOSHI
IPC分类号： G03G5/05 , G03G5/06 , G03G5/07 , G03G5/147 , G03G9/08 , G03G9/097 , G03G9/10 , G03G15/08 , G03G15/09
CPC分类号： G03G5/0698 , G03G5/051 , G03G5/0589 , G03G5/0592 , G03G5/07 , G03G9/0827 , G03G9/097 , G03G9/09708
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic image forming method, by which proper images are obtained even after long-term repeated use, without generating abnormal images, such as an image of a lowered image density or a blurred image, and to provide a high durability electrophotographic photoreceptor and a two-component developer used in the method and a process cartridge. SOLUTION: In the image forming method, in which an electrostatic latent image formed on the electrophotographic photoreceptor is developed with the two-component developer, the electrophotographic photoreceptor is an organophotoreceptor with at least a photosensitive layer and a surface protection layer disposed on a conductive substrate, wherein the surface protection layer contains a resin obtained by a crosslinking reaction of a crosslinkable charge transport material, containing a reactive hydroxyl group with a thermosetting resin monomer and a thermosetting surfactant; and a toner constituting the two-component developer has added inorganic fine particles and the addition is within the range of 0.8-3.0%, in terms of the amount of effective inorganic fine particles represented by Equation (1). COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供电子照相图像形成方法，即使在长时间重复使用之后也可以获得适当的图像，而不产生诸如图像浓度降低的图像或模糊图像的异常图像，以及以提供在该方法和处理盒中使用的高耐久性电子照相感光体和双组分显影剂。解决方案：在其中利用双组分显影剂显影形成在电子照相感光体上的静电潜像的图像形成方法中，电子照相感光体是至少具有感光层和表面保护层的有机光感受器导电性基材，其中，所述表面保护层含有通过交联性电荷输送材料与含有热固性树脂单体和热固性表面活性剂的反应性羟基的交联反应获得的树脂; 并且构成双组分显影剂的调色剂添加了无机细颗粒，并且相对于由式（1）表示的有效无机细颗粒的量，添加量在0.8-3.0％的范围内。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JPS5857739B2 JPS5857739B2 - 失效
公开(公告)号：JPS5857739B2
公开(公告)日：1983-12-21
申请号：JP5020374
申请日：1974-05-04
申请人： Eastman Kodak Co
发明人： ROORENSU EDOWAADO KONTOISU , RUISU JOSEFU ROTSUSHI
IPC分类号： C07D333/20 , C07C67/00 , C07C209/00 , C07C211/50 , G03G5/00 , G03G5/06 , G03G5/07 , G03G5/087 , G03G5/09
CPC分类号： G03G5/087 , G03G5/0672 , G03G5/0674 , G03G5/07 , G03G5/09

9. 发明专利

JP5716962B2 電子写真感光体、及びそれを用いた画像形成方法、画像形成装置、画像形成装置用プロセスカートリッジ有权
标题翻译：电子照相感光构件，以及使用该图像形成装置的图像形成方法，该处理卡盒的图像形成装置
公开(公告)号：JP5716962B2
公开(公告)日：2015-05-13
申请号：JP2011158745
申请日：2011-07-20
申请人：株式会社リコー
发明人：田中裕二 , 永井一清 , 鈴木哲郎 , 小飯塚祐介
IPC分类号： G03G5/147 , G03G5/06 , G03G5/07
CPC分类号： G03G5/07 , G03G5/0605 , G03G5/0609 , G03G5/0614 , G03G5/071 , G03G5/075 , G03G5/076

10. 发明专利

JP2013041241A Electrophotographic photoconductor and method for manufacturing the same 审中-公开
标题翻译：电子照相光电子器件及其制造方法
公开(公告)号：JP2013041241A
公开(公告)日：2013-02-28
申请号：JP2012134478
申请日：2012-06-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KAWASAKI YOSHIAKI , YI HONG-GUK , HIRADE TOMOHIRO
IPC分类号： G03G5/147 , G03G5/00
CPC分类号： G03G5/043 , G03G5/0589 , G03G5/0592 , G03G5/0596 , G03G5/07 , G03G5/14734 , G03G5/14786 , G03G5/14791 , G03G5/14795
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoconductor which has a surface layer having good surface conditions and being uniform over the inner portion thereof, which is stable with high abrasion resistance and scratch resistance, which has good electric characteristics, and which achieves high picture quality for a long period of time, and to provide a method for manufacturing the electrophotographic photoconductor.SOLUTION: The electrophotographic photoconductor includes at least a photoconductive layer and a surface layer on a conductive support body. The surface layer is a crosslinked layer formed by curing a radical polymerizable monomer (a) having no charge transporting structure and a radical polymerizable compound (b) having a charge transporting structure, by irradiation with luminous energy light and using a photopolymerization initiator. The radical polymerizable compound having a charge transporting structure included in the surface layer shows a ratio Ae/As of 0.7 or more, where Ae represents an absorbance of the compound at an absorption peak wavelength λ after the compound is irradiated with luminous energy and As represents an absorbance of the compound at the wavelength λ before the irradiation with luminous energy.
摘要翻译：要解决的问题：提供一种电子照相感光体，其表面层具有良好的表面状态并且在内部具有均匀的表面，其具有良好的电特性，耐磨性和耐擦伤性是稳定的，并具有良好的电特性，实现长时间的高画质，并提供制造电子照相感光体的方法。解决方案：电子照相感光体至少包括光电导层和导电支撑体上的表面层。表层是通过用光能照射并使用光聚合引发剂固化具有电荷输送结构的自由基聚合性单体（a）和具有电荷输送结构的自由基聚合性化合物（b）而形成的交联层。具有包含在表层中的电荷输送结构的自由基聚合性化合物的比率Ae / As为0.7以上，其中，Ae表示化合物被光能照射后的吸收峰值波长λ的化合物的吸光度，As表示化合物在用光能照射之前的波长λ处的吸光度。版权所有（C）2013，JPO＆INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式