公开(公告)号：US07906264B2

公开(公告)日：2011-03-15

申请号：US11705002

申请日：2007-02-12

Applicant: Masaru Takahashi ,  Hirokazu Hamano ,  Atsushi Sugawara ,  Masaki Nakamura ,  Yasuhiro Oya

Inventor： Masaru Takahashi ,  Hirokazu Hamano ,  Atsushi Sugawara ,  Masaki Nakamura ,  Yasuhiro Oya

IPC: G03G9/00

CPC classification number: G03G9/08797 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/10

Abstract: The invention provides: an electrostatic latent image developing toner comprising a non-crystalline resin, a crystalline resin having a melting point of 50 to 100° C., and a colorant, and satisfying the relationship represented by the following formula (1), wherein A represents the content of the crystalline resin (% by mass) in the entire toner, and B represents the content of the crystalline resin (% by mass) in a classified toner which has been prepared by classifying the toner such that the volume average particle diameter thereof is in the range of (⅕)×D50T to (⅔)×D50T, wherein D50T represents the volume average particle diameter of the entire toner, and a method for producing the same, as well as an electrostatic latent image developing developer, a toner cartridge, a process cartridge, and an image forming apparatus using the same. 50≦(B/A)×100≦90  Formula (1)

Abstract translation: 本发明提供：包含非结晶性树脂的静电潜像显影用调色剂，熔点为50〜100℃的结晶性树脂和着色剂，满足下述式（1）表示的关系，其中， A表示整个调色剂中的结晶性树脂的含量（质量％），B表示通过将调色剂分级而制备的分级调色剂中的结晶性树脂的含量（质量％），使得体积平均粒子 其直径在（⅕）×D50T至（⅔）×D50T的范围内，其中D50T表示整个调色剂的体积平均粒径，及其制造方法以及静电潜像显影显影剂， 一个墨粉盒，一个处理盒，以及一个使用它的成像设备。 50＆nlE;（B / A）×100＆nlE; 90式（1）

公开(公告)号：US20090142110A1

公开(公告)日：2009-06-04

申请号：US12168571

申请日：2008-07-07

Applicant: Yasuhiro OYA ,  Atsuhiko EGUCHI

Inventor： Yasuhiro OYA ,  Atsuhiko EGUCHI

IPC: G03G15/20

CPC classification number: G03G9/0821 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0902

Abstract: A toner having: a peak temperature before fixation T1a of about 40° C. or more; and a peak temperature after fixation T1b that is lower than T1a by from about 10° C. to about 35° C.: T1a being a peak temperature of an endothermic peak occurring at the lowest temperature in a range of from 0° C. to 100° C. and obtained at a first warming-up step of a differential scanning calorimetry measurement that uses a toner before fixation as a sample; T1b being a peak temperature of an endothermic peak occurring at the lowest temperature within a range of from 0° C. to 100° C. and obtained at a first warming-up step of a differential scanning calorimetry measurement that uses a toner after fixation as a sample; and the toner after fixation being contained in a fixed image transferred from a transferring member and fixed on a recording medium, a maximum width of an image defect formed after conducting a folding test of the fixed image being 0.30 mm or less.

Abstract translation: 一种调色剂，其具有：固定T1a之前的峰值温度约40℃以上; 并且固定T1b之后的峰值温度比T1a低约10℃至约35℃：T1a是在0℃至0℃至最低温度范围内发生的吸热峰的峰值温度 100℃，并在使用固色前的调色剂作为样品的差示扫描量热测量的第一预热步骤中获得; T1b是在0℃至100℃的最低温度下发生的吸热峰的峰值温度，并且在使用定影后的调色剂的差示扫描量热测量的第一预热步骤获得时， 一个样品; 并且定影后的调色剂被包含在从转印部件转印并固定在记录介质上的固定图像中，在进行固定图像的折叠试验之后形成的图像缺陷的最大宽度为0.30mm以下。

公开(公告)号：US20060292473A1

公开(公告)日：2006-12-28

申请号：US11302151

申请日：2005-12-14

Applicant: Yasuo Kadokura ,  Yuka Ishihara ,  Yasuhiro Arima ,  Atsushi Sugawara ,  Shinya Nakashima ,  Masaki Nakamura ,  Yasuhiro Oya

Inventor： Yasuo Kadokura ,  Yuka Ishihara ,  Yasuhiro Arima ,  Atsushi Sugawara ,  Shinya Nakashima ,  Masaki Nakamura ,  Yasuhiro Oya

IPC: G03G9/08

CPC classification number: G03G9/0819 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/09708 ,  G03G9/09725

Abstract: An electrostatic latent image developing toner that is made by adding electrically conductive powder as an external additive to toner particles comprising a binder resin and a colorant, wherein the liberation rate of the electrically conductive powder is from 50 to 90%; and the number average particle size distribution index G of the toner particles, which is represented by the following formula (1), is 1.20 or less. particle size distribution index G=D50/D16  Formula (1)And an electrostatic latent image developing toner that is made by adding a metal oxide as an external additive to toner particles comprising a binder resin and a colorant, wherein the liberation rate of the metal oxide is from 30 to 60%.

Abstract translation: 一种静电潜像显影调色剂，其通过将作为外部添加剂的导电粉末添加到包含粘合剂树脂和着色剂的调色剂颗粒中而制成，其中导电粉末的释放速率为50至90％; 由下式（1）表示的调色剂颗粒的数均粒径分布指数G为1.20以下。 <？in-line-formula description =“在线公式”end =“lead”？>粒度分布指数G = D50 / D16公式（1）<？in-line-formula description =“In-line Formulas” end =“tail”？>和通过将包含粘合剂树脂和着色剂的调色剂颗粒加入作为外部添加剂的金属氧化物制成的静电潜像显影调色剂，其中金属氧化物的释放速率为30至60 ％。

公开(公告)号：US20050164109A1

公开(公告)日：2005-07-28

申请号：US10935134

申请日：2004-09-08

Applicant: Akihiro Iizuka ,  Atsuhiko Eguchi ,  Masahiro Okita ,  Yasuhiro Oya

Inventor： Akihiro Iizuka ,  Atsuhiko Eguchi ,  Masahiro Okita ,  Yasuhiro Oya

IPC: G03G9/08 ,  G03G9/097

CPC classification number: G03G9/09733 ,  G03G9/0827 ,  G03G9/097

Abstract: The invention provides a toner for developing electrostatic charged images comprising toner mother particles containing a binder resin and a colorant, and an external additive, wherein: the average of shape factors SF1 of the toner mother particles represented by the following Formula (1) is 140 or less; the external additive contains higher alcohol particles having a volume-average particle diameter of 1 to 12 μm; and the content of the higher alcohol particles having a diameter equal to or less than the volume-average particle diameter of the toner mother particles is in a range of 0.15 to 2.5 parts by weight with respect to 100 parts by weight of the toner mother particles. In addition, the invention provides a developer for developing electrostatic charged images comprising the toner. Further, the invention provides an image forming method using the toner.

Abstract translation: 本发明提供一种用于显影静电荷图像的调色剂，其包含含有粘合剂树脂和着色剂的调色剂母粒子和外部添加剂，其中：由下式（1）表示的调色剂母粒子的形状因子SF1的平均值为140 或更少; 外部添加剂含有体积平均粒径为1〜12μm的高级醇粒子; 相对于100重量份的调色剂母粒子，直径等于或小于调色剂母粒的体积平均粒径的高级醇粒子的含量在0.15〜2.5重量份的范围内 。 此外，本发明提供了一种显影剂，用于显影包含调色剂的静电荷图像。 此外，本发明提供了一种使用调色剂的成像方法。

公开(公告)号：US06383704B1

公开(公告)日：2002-05-07

申请号：US09723241

申请日：2000-11-28

Applicant: Rieko Kataoka ,  Susumu Yoshino ,  Akihiro Iizuka ,  Koutarou Yoshihara ,  Haruhide Ishida ,  Tetsuya Taguchi ,  Fumiaki Mera ,  Hiroshi Takano ,  Yasuhiro Oya ,  Michio Take

Inventor： Rieko Kataoka ,  Susumu Yoshino ,  Akihiro Iizuka ,  Koutarou Yoshihara ,  Haruhide Ishida ,  Tetsuya Taguchi ,  Fumiaki Mera ,  Hiroshi Takano ,  Yasuhiro Oya ,  Michio Take

IPC: G03G910

CPC classification number: G03G9/1075 ,  G03G9/08782 ,  G03G9/09708 ,  G03G9/09716

Abstract: A full color electrophotographic toner including toner particles containing at least a binder resin, a colorant and a wax, and external additives, at least one of the external additives being rutile titanium oxide having a volume resistivity of 1×1014 to 1×1018 &OHgr;cm, and a dispersion absolute deviation a of rutile titanium oxide being 0.17 or less, and a full color electrophotographic developer and an image forming method using the same are provided. In the full color electrophotographic toner, the full color electrophotographic developer and the image forming method of the invention, a retransfer phenomenon of the transferred toner can be prevented, a chargeability and a transferability are not problematic at all, a charging amount of the toner in long-term use can be rendered appropriate and stable, and a fluidity is also excellent.

Abstract translation: 包含至少含有粘合剂树脂，着色剂和蜡的调色剂颗粒和外部添加剂的全色电子照相调色剂，至少一种外部添加剂是体积电阻率为1×10 14至1×10 18 OMEGA cm的金红石型氧化钛，以及分散绝对 金红石型氧化钛的偏差为0.17以下，全色电子照相显影剂和使用其的图像形成方法。 在全色电子照相调色剂，全色电子照相显影剂和本发明的成像方法中，可以防止转印的调色剂的再转印现象，带电性和转印性完全没有问题，调色剂的带电量 长期使用可以适当和稳定，流动性也很好。

公开(公告)号：US5720607A

公开(公告)日：1998-02-24

申请号：US589744

申请日：1996-01-22

Applicant: Shuji Morio ,  Yasuhiro Oya ,  Nobumasa Iguchi

Inventor： Shuji Morio ,  Yasuhiro Oya ,  Nobumasa Iguchi

IPC: F23Q3/00 ,  F23N5/24

CPC classification number: F23Q3/004

Abstract: An ignitor includes a first transistor, a transformer, an ignition member, and a switching control member. The first transistor is activated in accordance with supply from a DC power supply to perform switching. The transformer has a primary winding through which a switching current flows via the first transistor, a secondary winding for generating high voltage when the switching current flows through the first winding, and a tertiary winding for generating a control output for controlling the switching of the first transistor in accordance with the high voltage generated in the secondary winding. The ignition member ignites a target object using the high voltage generated in the secondary winding of the transformer. The switching control member prolongs the ON time for the switching of the first transistor in accordance with a decrease in at least one of the ambient temperature and the power supply voltage.

Abstract translation: 点火器包括第一晶体管，变压器，点火元件和开关控制元件。 第一晶体管根据来自直流电源的供电而被激活以进行切换。 变压器具有初级绕组，开关电流通过该初级绕组经由第一晶体管，用于在开关电流流过第一绕组时产生高电压的次级绕组，以及用于产生用于控制第一晶体管的开关的控制输出的第三绕组 晶体管按照次级绕组产生的高电压。 点火部件使用在变压器的次级绕组中产生的高电压来点燃目标物体。 根据环境温度和电源电压中的至少一个的降低，开关控制部件延长用于开关第一晶体管的导通时间。

公开(公告)号：US20080057430A1

公开(公告)日：2008-03-06

申请号：US11705002

申请日：2007-02-12

Applicant: Masaru Takahashi ,  Hirokazu Hamano ,  Atsushi Sugawara ,  Masaki Nakamura ,  Yasuhiro Oya

Inventor： Masaru Takahashi ,  Hirokazu Hamano ,  Atsushi Sugawara ,  Masaki Nakamura ,  Yasuhiro Oya

IPC: G03G9/087 ,  G03G15/14

CPC classification number: G03G9/08797 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/10

Abstract: The invention provides: an electrostatic latent image developing toner comprising a non-crystalline resin, a crystalline resin having a melting point of 50 to 100° C., and a colorant, and satisfying the relationship represented by the following formula (1), wherein A represents the content of the crystalline resin (% by mass) in the entire toner, and B represents the content of the crystalline resin (% by mass) in a classified toner which has been prepared by classifying the toner such that the volume average particle diameter thereof is in the range of (⅕)×D50T to (⅔)×D50T, wherein D50T represents the volume average particle diameter of the entire toner, and a method for producing the same, as well as an electrostatic latent image developing developer, a toner cartridge, a process cartridge, and an image forming apparatus using the same. 50≦(B/A)×100≦90   Formula (1)

Abstract translation: 本发明提供：包含非结晶性树脂的静电潜像显影用调色剂，熔点为50〜100℃的结晶性树脂和着色剂，满足下述式（1）表示的关系，其中， A表示整个调色剂中的结晶性树脂的含量（质量％），B表示通过将调色剂分级而制备的分级调色剂中的结晶性树脂的含量（质量％），使得体积平均粒子 其直径在（1/5）×D 50 T〜（2/3）×D 50 T的范围内，其中D 50 T表示整个调色剂的体积平均粒径，以及其制造方法 作为静电潜像显影显影剂，调色剂盒，处理盒和使用其的图像形成装置。 <？in-line-formula description =“In-line formula”end =“lead”？> 50 <=（B / A）x100 <= 90公式（1）<？in-line-formula description = 行公式“end =”tail“？>

公开(公告)号：US07138215B2

公开(公告)日：2006-11-21

申请号：US10733453

申请日：2003-12-12

Applicant: Yasuhiro Oya ,  Tomohiro Takeda ,  Daisuke Ishizuka

Inventor： Yasuhiro Oya ,  Tomohiro Takeda ,  Daisuke Ishizuka

IPC: G03G13/16 ,  G03G15/00

CPC classification number: G03G21/1814 ,  G03G15/0896

Abstract: The present invention provides a process cartridge that is freely attachable to and detachable from a main body of an image forming apparatus and that includes a latent image bearing body and a developing device having a developer storage space for storing a developer, the image forming apparatus and an image forming method. The invention also provides another image forming method using a one-component magnetic toner that is employable in a wide region of from a low process speed to a high process speed while achieving a high fixing ability.

Abstract translation: 本发明提供了一种处理盒，其可自由地附接到图像形成装置的主体并且可从其拆卸，并且包括潜像承载体和具有用于存储显影剂的显影剂存储空间的显影装置，图像形成装置和 图像形成方法。 本发明还提供使用单组分磁性调色剂的另一种图像形成方法，其可以在从低处理速度到高处理速度的宽区域中使用，同时实现高定影能力。

公开(公告)号：US06733938B1

公开(公告)日：2004-05-11

申请号：US09722828

申请日：2000-11-28

Applicant: Masanobu Ninomiya ,  Yasuhiro Oya ,  Hidekazu Yaguchi ,  Hirokazu Hamano ,  Haruhide Ishida

Inventor： Masanobu Ninomiya ,  Yasuhiro Oya ,  Hidekazu Yaguchi ,  Hirokazu Hamano ,  Haruhide Ishida

IPC: G03G9097

CPC classification number: G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09708 ,  G03G13/20

Abstract: A toner for developing an electrostatic latent image, wherein in regard to the molecular weight by GPC of the THF dissolved components of the toner, the ratio of at least 5×105 in the integral molecular weight distribution is not higher than 1% by weight, the ratio of not higher than 3×103 is not higher than 30% by weight, and the ratio {W(5×103)/W(1×105)} of the ratio {W(5×103)} of not higher than 5×103 to the ratio {W(1×105)} of at least 1×105 is from 15 to 50. Also, the molecular weight by GPC of the THF dissolved components of the toner is distributed in the range of not larger than 1×106, the value of the differential molecular weight distribution of the molecular weight of 5×103 is not larger than 0.55%, and the value of the differential molecular weight distribution of the molecular weight of 1×105 is not larger than 0.15%.

Abstract translation: 用于显影静电潜像的调色剂，其中关于调色剂的THF溶解组分通过GPC的分子量，在整体分子量分布中至少5×10 5的比率不高于1重量％ ，不高于3×10 3的比例不高于30重量％，比例{W（5×10 -3）/ W（5×10 3）/ W（1×10 5） 至少1×10 5的比率（W（1×10 5））不高于5×10 3的比例为15至50.此外，调色剂的THF溶解组分的GPC分子量 分布在不大于1×10 6的范围内，分子量为5×10 3的差分分子量分布的值不大于0.55％，分子的分子量分布值 1×10 5的重量不大于0.15％。

公开(公告)号：US6040102A

公开(公告)日：2000-03-21

申请号：US982301

申请日：1997-12-01

Applicant: Sakon Takahashi ,  Shinpei Takagi ,  Noriyuki Mizutani ,  Yasuhiro Oya ,  Haruhide Ishida

Inventor： Sakon Takahashi ,  Shinpei Takagi ,  Noriyuki Mizutani ,  Yasuhiro Oya ,  Haruhide Ishida

IPC: G03G9/087 ,  G03G9/08 ,  G03G9/09 ,  G03G9/097 ,  G03G9/10 ,  G03G9/113

CPC classification number: G03G9/0823 ,  G03G9/08 ,  G03G9/09708 ,  G03G9/10 ,  G03G9/1139

Abstract: An electrostatic latent image developer including a toner, which is formed from an outer additive and non-magnetic resin particles containing a binder resin and a coloring agent, and a carrier, in which a resin coating layer in which electroconductive fine powder is dispersed in a matrix resin is formed on a core, wherein a volume specific resistivity of said carrier is greater than or equal to 10.sup.9 .OMEGA..multidot.cm at an electric field strength of 3000 V/cm and is less than or equal to 10.sup.13 .OMEGA..multidot.cm at an electric field strength of 10000 V/cm, said outer additive contains titanium oxide whose volume specific resistivity of a compression-molded molded product is greater than or equal to 10.sup.6 .OMEGA..multidot.cm at an electric field strength of 3000 V/cm and is less than or equal to 10.sup.10 .OMEGA..multidot.cm at an electric field strength of 10000 V/cm, and a volume specific resistivity of said electrostatic latent image developer when a toner concentration is greater than or equal to 2% is greater than or equal to 10.sup.11 .OMEGA..multidot.cm at an electric field strength of 3000 V/cm.Further, the present invention provides an image forming method including steps of forming a latent image on a latent image holding member, and developing the latent image by using said electrostatic latent image developer.

Abstract translation: 包含由外部添加剂形成的调色剂和包含粘合剂树脂和着色剂的非磁性树脂颗粒和载体的静电潜像显影剂，其中导电细粉末分散在其中的树脂涂层 基体树脂形成在芯上，其中所述载体的体积电阻率在3000V / cm的电场强度下大于或等于109ΩEGAxcm，并且在电场强度下小于或等于1013ΩEGAxcm 所述外添加剂含有在3000V / cm的电场强度下压缩成型制品的体积电阻率大于或等于106ΩEGA×cm的氧化钛，小于等于1010 电场强度为10000V / cm的OMEGA xcm，当调色剂浓度大于或等于2％时所述静电潜像显影剂的体积电阻率大于或等于 1011 OMEGA xcm，电场强度为3000V / cm。 此外，本发明提供一种图像形成方法，包括以下步骤：在潜像保持部件上形成潜像，并通过使用所述静电潜像显影剂使潜像显影。