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1.发明授权公开(公告)号：US09296899B2
公开(公告)日：2016-03-29
申请号：US12293830
申请日：2007-03-20
Applicant: Mitsuo Wada , Kazutaka Ida , Teruyuki Mitsumori , Hiroaki Takamura , Tadashi Mizushima
Inventor： Mitsuo Wada , Kazutaka Ida , Teruyuki Mitsumori , Hiroaki Takamura , Tadashi Mizushima
CPC classification number: G03G5/0696 , C09B47/045 , C09B67/0016 , C09B67/0026
Abstract: Provided is an excellent phthalocyanine crystal having high sensitivity and little fluctuation in sensitivity for a humidity change in a use environment and applicable to the martial for solar battery, electronic paper, electrophotographic photoreceptor, etc. Namely, phthalocyanine crystal obtained by bringing a phthalocyanine crystal precursor into contact with an aromatic aldehyde compound to convert the crystal form. Also, provided is an electrophotographic photoreceptor that not only exhibits high sensitivity but also has little fluctuation in sensitivity for a humidity change in a use environment. Further, provided is an electrophotographic photoreceptor cartridge and an image-forming device, both of which can produce a stable quality images for a humidity change in a use environment by using the electrophotographic photoreceptor.
Abstract translation: 提供了一种优异的酞菁结晶，其在使用环境中的湿度变化的灵敏度高，灵敏度波动小，适用于太阳能电池，电子纸，电子照相感光体等的武器。即，通过将酞菁结晶前体 与芳族醛化合物接触以转化晶体形式。 此外，提供了一种电子照相感光体，其不仅表现出高灵敏度，而且在使用环境中对湿度变化的灵敏度几乎没有波动。 此外，提供了一种电子照相感光体盒和图像形成装置，它们都可以通过使用电子照相感光体在使用环境中产生用于湿度变化的稳定质量图像。
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2.发明授权公开(公告)号：US08846282B2
公开(公告)日：2014-09-30
申请号：US13441633
申请日：2012-04-06
Applicant: Mitsuo Wada , Kazutaka Ida , Teruyuki Mitsumori , Hiroaki Takamura , Tadashi Mizushima
Inventor： Mitsuo Wada , Kazutaka Ida , Teruyuki Mitsumori , Hiroaki Takamura , Tadashi Mizushima
CPC classification number: G03G5/0696 , C09B47/045 , C09B67/0016 , C09B67/0026
Abstract: Provided is an excellent phthalocyanine crystal having high sensitivity and little fluctuation in sensitivity for a humidity change in a use environment and applicable to the martial for solar battery, electronic paper, electrophotographic photoreceptor, etc. Namely, phthalocyanine crystal obtained by bringing a phthalocyanine crystal precursor into contact with an aromatic aldehyde compound to convert the crystal form. Also, provided is an electrophotographic photoreceptor that not only exhibits high sensitivity but also has little fluctuation in sensitivity for a humidity change in a use environment. Further, provided is an electrophotographic photoreceptor cartridge and an image-forming device, both of which can produce a stable quality images for a humidity change in a use environment by using the electrophotographic photoreceptor.
Abstract translation: 提供了一种优异的酞菁结晶，其在使用环境中的湿度变化的灵敏度高，灵敏度波动小，适用于太阳能电池，电子纸，电子照相感光体等的武器。即，通过将酞菁结晶前体 与芳族醛化合物接触以转化晶体形式。 此外，提供了一种电子照相感光体，其不仅表现出高灵敏度，而且在使用环境中对湿度变化的灵敏度几乎没有波动。 此外，提供了一种电子照相感光体盒和图像形成装置，它们都可以通过使用电子照相感光体在使用环境中产生用于湿度变化的稳定质量图像。
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3.发明授权公开(公告)号：US08663882B2
公开(公告)日：2014-03-04
申请号：US12088322
申请日：2006-09-28
Applicant: Teruyuki Mitsumori , Masayuki Hiroi , Hiroaki Takamura
Inventor： Teruyuki Mitsumori , Masayuki Hiroi , Hiroaki Takamura
CPC classification number: G03G5/0696 , G03G5/0564 , G03G5/0614 , G03G5/0657 , G03G5/102 , G03G5/142 , G03G5/144
Abstract: To provide an electrophotographic photoreceptor excellent in electric characteristics and various characteristics, capable of forming a uniform photosensitive layer and excellent in repetitive characteristics, an image forming apparatus using it and an electrophotgraphic cartridge.A lamination type electrophotographic photoreceptor comprising an electroconductive substrate and a photosensitive layer formed thereon, characterized in that the photosensitive layer contains a compound represented by the following formula (1), the ratio of the weight of the compound represented by the formula (1) to the weight content of all binder resins contained in the photosensitive layer is from 0.15 to 0.6, and the weight of the compound represented by the formula (1) is maximum among all charge transport materials: wherein each of Ar1, Ar2 and Ar3 is an aryl group which may have a substituent, each of Ar4 and Ar5 which are independent of each other, is an arylene group which may have a substituent, and each of n1 and n2 which are independent of each other, is an integer of from 1 to 3.
Abstract translation: 为了提供能够形成均匀的感光层和优异的重复特性的电特性和各种特性的电子照相感光体，使用它的图像形成装置和电子影像盒。 一种层叠型电子照相感光体，其特征在于，含有导电性基体和形成在其上的感光层，其特征在于，感光层含有下述式（1）表示的化合物，式（1）表示的化合物的重量与式 包含在感光层中的所有粘合剂树脂的重量含量为0.15至0.6，并且所有电荷输送材料中由式（1）表示的化合物的重量是最大的：其中Ar1，Ar2和Ar3各自为芳基 可具有取代基的基团，Ar 4和Ar 5各自独立地为可以具有取代基的亚芳基，并且彼此独立的n1和n2各自为1〜3的整数 。
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公开(公告)号：US20120039630A1
公开(公告)日：2012-02-16
申请号：US13237180
申请日：2011-09-20
Applicant: Teruyuki Mitsumori , Kozo Ishio , Hiroaki Takamura , Masaya Oota , Shiho Sano , Takeshi Oowada , Masakazu Sugihara , Teruki Senokuti , Shiro Yasutomi , Yumi Hirabaru
Inventor： Teruyuki Mitsumori , Kozo Ishio , Hiroaki Takamura , Masaya Oota , Shiho Sano , Takeshi Oowada , Masakazu Sugihara , Teruki Senokuti , Shiro Yasutomi , Yumi Hirabaru
IPC: G03G15/00
CPC classification number: G03G13/08 , G03G9/0819 , G03G15/08
Abstract: An image forming apparatus containing an electrophotographic photoreceptor and a toner for developing an electrostatic charge image, where the electrophotographic photoreceptor has an electroconductive substrate with a surface roughness Ra of from 0.01 μm to 0.3 μm; the toner for developing an electrostatic charge image is a toner for developing an electrostatic charge image containing toner matrix particles formed in an aqueous medium; the toner has a volume median diameter (Dv50) of from 4.0 μm to 7.0 μm; and the relationship between the volume median diameter (Dv50) and the percentage in number (Dns) of toner particles having a particle diameter of from 2.00 μm to 3.56 μm satisfies formula (1): Dns≦0.233EXP(17.3/Dv50) (1) where Dv50 is the volume median diameter (μm) of the toner, and Dns is the percentage in number of toner particles having a particle diameter of from 2.00 μm to 3.56 μm.
Abstract translation: 含有电子照相感光体和静电荷图像显影用调色剂的图像形成装置，其中电子照相感光体具有表面粗糙度Ra为0.01μm〜0.3μm的导电性基体; 用于显影静电荷图像的调色剂是用于显影含有在水性介质中形成的调色剂基质颗粒的静电荷图像的调色剂; 调色剂的体积中值粒径（Dv50）为4.0μm〜7.0μm; 体积中值粒径（Dv50）与粒径为2.00μm〜3.56μm的调色剂粒子的数量（Dns）之间的关系满足式（1）：Dns＆nlE; 0.233EXP（17.3 / Dv50）（1 ）其中Dv50是调色剂的体积中值直径（μm），Dns是粒径为2.00μm至3.56μm的调色剂颗粒数的百分比。
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公开(公告)号：US20110038650A1
公开(公告)日：2011-02-17
申请号：US12679233
申请日：2008-09-19
Applicant: Yuzo Kaneko , Masaya Oota , Shiho Sano , Masakazu Sugihara , Teruki Senokuchi , Shiro Yasutomi , Takeshi Owada , Yumi Hirabaru , Takuya Nishikiori , Teruyuki Mitsumori , Kozo Ishio , Hiroaki Takamura
Inventor： Yuzo Kaneko , Masaya Oota , Shiho Sano , Masakazu Sugihara , Teruki Senokuchi , Shiro Yasutomi , Takeshi Owada , Yumi Hirabaru , Takuya Nishikiori , Teruyuki Mitsumori , Kozo Ishio , Hiroaki Takamura
CPC classification number: G03G9/0827 , G03G9/0806 , G03G9/0819 , G03G9/0821 , G03G9/0823 , G03G9/08782 , G03G9/09392 , G03G2215/0614 , G03G2221/0005
Abstract: An object of the invention is to provide a toner which is effective in improving image quality while inhibiting white-background fouling, residual-image phenomenon (ghost), blurring (suitability for solid printing), and the like that occur depending on the proportion of a fine powder having a particle diameter not larger than a specific value, and which has satisfactory removability in cleaning, mitigates problems concerning fouling, etc. in long-term use even on a high-speed printer, and attains excellent image stability. Another object is to provide an image-forming apparatus and a toner cartridge each employing the toner. The invention provides a toner for electrostatic-image development satisfying all of the following (1) to (4) or a toner for electrostatic-image development which is a toner containing a charge control agent and satisfying all of the following (5) to (7). The invention further provides an image-forming apparatus and a toner cartridge each employing the toner.(1) To have a volume-median diameter (Dv50) of from 4.0 μm to 7.5 μm. (2) To have an average degree of circularity of 0.93 or higher. (3) A volume-median diameter (Dv50) of the toner and population number % of toner particles having a particle diameter of from 2.00 μm to 3.56 μm (Dns) in the toner satisfy the relationship Dns≦0.233 EXP(17.3/Dv50). (4) To have a coefficient of variation in number of 24.0% or lower. (5) To have a volume-median diameter (Dv50) of from 4.0 μm to 7.5 μm. (6) A volume-median diameter (Dv50) of the toner and population number % of toner particles having a particle diameter of from 2.00 μm to 3.56 μm (Dns) in the toner satisfy the relationship Dns≦0.233 EXP(17.3/Dv50). (7) When the charge control agent on the toner surface is cleaned, the resultant depressions have an average diameter of 500 nm or smaller.
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Patent Agency Ranking
6.发明申请ELECTROPHOTOGRAPHIC PHOTOSENSITIVE BODY, IMAGE-FORMING DEVICE USING SAME AND CARTRIDGE 有权电子感光体，使用相同和成像的图像形成装置公开(公告)号：US20100150608A1
公开(公告)日：2010-06-17
申请号：US12088322
申请日：2006-09-28
Applicant: Teruyuki Mitsumori , Masayuki Hiroi , Hiroaki Takamura
Inventor： Teruyuki Mitsumori , Masayuki Hiroi , Hiroaki Takamura
CPC classification number: G03G5/0696 , G03G5/0564 , G03G5/0614 , G03G5/0657 , G03G5/102 , G03G5/142 , G03G5/144
Abstract: To provide an electrophotographic photoreceptor excellent in electric characteristics and various characteristics, capable of forming a uniform photosensitive layer and excellent in repetitive characteristics, an image forming apparatus using it and an electrophotgraphic cartridge.A lamination type electrophotographic photoreceptor comprising an electroconductive substrate and a photosensitive layer formed thereon, characterized in that the photosensitive layer contains a compound represented by the following formula (1), the ratio of the weight of the compound represented by the formula (1) to the weight content of all binder resins contained in the photosensitive layer is from 0.15 to 0.6, and the weight of the compound represented by the formula (1) is maximum among all charge transport materials: wherein each of Ar1, Ar2 and Ar3 is an aryl group which may have a substituent, each of Ar4 and Ar5 which are independent of each other, is an arylene group which may have a substituent, and each of n1 and n2 which are independent of each other, is an integer of from 1 to 3.
Abstract translation: 为了提供能够形成均匀的感光层和优异的重复特性的电特性和各种特性的电子照相感光体，使用它的图像形成装置和电子影像盒。 一种层叠型电子照相感光体，其特征在于，含有导电性基体和形成在其上的感光层，其特征在于，感光层含有下述式（1）表示的化合物，式（1）表示的化合物的重量与式 包含在感光层中的所有粘合剂树脂的重量含量为0.15至0.6，并且所有电荷输送材料中由式（1）表示的化合物的重量是最大的：其中Ar1，Ar2和Ar3各自为芳基 可具有取代基的基团，Ar 4和Ar 5各自独立地为可以具有取代基的亚芳基，并且彼此独立的n1和n2各自为1〜3的整数 。
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公开(公告)号：US08722289B2
公开(公告)日：2014-05-13
申请号：US13149215
申请日：2011-05-31
Applicant: Hiroaki Takamura
Inventor： Hiroaki Takamura
CPC classification number: G03G5/0564
Abstract: It is to provide a sheet-shaped electrophotographic photoreceptor which has an uncoated area, is good in mechanical adhesiveness between the photosensitive layer and the sheet-shaped conductive substrate but excellent ease of peeling with a solvent, and is further good in electrical properties. The electrophotographic photoreceptor comprises a sheet-shaped conductive substrate and a photosensitive layer provided thereon, wherein the electrophotographic photoreceptor contains a photosensitive layer-uncoated area within the sheet surface, and the photosensitive layer contains a copolycarbonate resin having an extremely restricted specific structure.
Abstract translation: 提供具有未涂覆区域的片状电子照相感光体，感光层与片状导电性基材的机械粘合性良好，但溶剂易剥离性优异，电性能更好。 电子照相感光体包括片状导电性基材和设置在其上的感光层，其中电子照相感光体在片材表面内含有感光层未涂覆区域，感光层含有特别限制的结构的共聚碳酸酯树脂。
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8.发明申请PHTHALOCYANINE CRYSTAL, AND ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CARTRIDGE AND IMAGE-FORMING DEVICE USING THE SAME 有权PHALALOCYANINE晶体和电子照相光电子产品，电子照相胶卷盒和使用它的成像装置公开(公告)号：US20120257907A1
公开(公告)日：2012-10-11
申请号：US13441633
申请日：2012-04-06
Applicant: Mitsuo WADA , Kazutaka Ida , Teruyuki Mitsumori , Hiroaki Takamura , Tadashi Mizushima
Inventor： Mitsuo WADA , Kazutaka Ida , Teruyuki Mitsumori , Hiroaki Takamura , Tadashi Mizushima
CPC classification number: G03G5/0696 , C09B47/045 , C09B67/0016 , C09B67/0026
Abstract: Provided is an excellent phthalocyanine crystal having high sensitivity and little fluctuation in sensitivity for a humidity change in a use environment and applicable to the martial for solar battery, electronic paper, electrophotographic photoreceptor, etc. Namely, phthalocyanine crystal obtained by bringing a phthalocyanine crystal precursor into contact with an aromatic aldehyde compound to convert the crystal form. Also, provided is an electrophotographic photoreceptor that not only exhibits high sensitivity but also has little fluctuation in sensitivity for a humidity change in a use environment. Further, provided is an electrophotographic photoreceptor cartridge and an image-forming device, both of which can produce a stable quality images for a humidity change in a use environment by using the electrophotographic photoreceptor.
Abstract translation: 提供了一种优异的酞菁结晶，其在使用环境中的湿度变化的灵敏度高，灵敏度波动小，适用于太阳能电池，电子纸，电子照相感光体等的武器。即，通过将酞菁结晶前体 与芳族醛化合物接触以转化晶体形式。 此外，提供了一种电子照相感光体，其不仅表现出高灵敏度，而且在使用环境中对湿度变化的灵敏度几乎没有波动。 此外，提供了一种电子照相感光体盒和图像形成装置，它们都可以通过使用电子照相感光体在使用环境中产生用于湿度变化的稳定质量图像。
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9.发明授权Electrophotographic photoreceptor, and image forming device and electrophotographic photoreceptor cartridge using the same member cartridge 有权电子照相感光体，以及使用相同构件盒的成像装置和电子照相感光体盒公开(公告)号：US08273509B2
公开(公告)日：2012-09-25
申请号：US12160052
申请日：2007-01-09
Applicant: Yuka Nagao , Tadashi Mizushima , Masami Tsurumori , Tomoko Nakagawa , Hiroaki Takamura , Shunichirou Kurihara , Tooru Uenaka , Masayuki Hiroi
Inventor： Yuka Nagao , Tadashi Mizushima , Masami Tsurumori , Tomoko Nakagawa , Hiroaki Takamura , Shunichirou Kurihara , Tooru Uenaka , Masayuki Hiroi
IPC: G03G15/00
CPC classification number: G03G5/056 , G03G5/0564 , G03G5/0616 , G03G5/076 , G03G5/14752 , G03G5/14769 , G03G9/0804 , G03G9/0806 , G03G9/0827 , G03G9/08755
Abstract: To realize an electrophotographic photoreceptor excellent in abrasion resistance, the photosensitive layer of the photoreceptor comprises a polyester resin containing a repeating structural unit represented by the formula (1) and a hydrazone compound. (In the formula (1), Ar1 to Ar4 each represents, independently of each other, an arylene group which may have a substituent. X1 represents a bivalent group (including a single bond) and X2 represents a bivalent group (including a single bond) with 3 or less atoms.)
Abstract translation: 为了实现耐磨损性优异的电子照相感光体，感光体的感光层包含含有式（1）表示的重复结构单元的聚酯树脂和腙化合物。 （式（1）中，Ar 1〜Ar 4彼此独立地表示可以具有取代基的亚芳基，X1表示二价基团（包括单键），X2表示二价基团（包括单键 ）具有3个或更少的原子。）
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公开(公告)号：US08221950B2
公开(公告)日：2012-07-17
申请号：US12849461
申请日：2010-08-03
Applicant: Teruyuki Mitsumori , Kozo Ishio , Hiroaki Takamura , Masaya Oota , Shiho Sano , Takeshi Oowada , Masakazu Sugihara , Teruki Senokuti , Shiro Yasutomi , Yumi Hirabaru
Inventor： Teruyuki Mitsumori , Kozo Ishio , Hiroaki Takamura , Masaya Oota , Shiho Sano , Takeshi Oowada , Masakazu Sugihara , Teruki Senokuti , Shiro Yasutomi , Yumi Hirabaru
IPC: G03G9/08
CPC classification number: G03G13/08 , G03G9/0819 , G03G15/08
Abstract: An image forming apparatus comprising an electrophotographic photoreceptor having a photosensitive layer on an electroconductive substrate, and a toner for developing an electrostatic charge image, wherein the photosensitive layer of the electrophotographic photoreceptor contains a phthalocyanine obtained via an acid paste step; the toner for developing an electrostatic charge image is a toner for developing an electrostatic charge image containing toner matrix particles formed in an aqueous medium; the toner has a volume median diameter (Dv50) of from 4.0 μm to 7.0 μm; and the relationship between the volume median diameter (Dv50) and the percentage in number (Dns) of toner particles having a particle diameter of from 2.00 μm to 3.56 μm satisfies the following formula (1): Dns≦0.233 EXP(17.3/Dv50) (1).
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