公开(公告)号：US06383704B1

公开(公告)日：2002-05-07

申请号：US09723241

申请日：2000-11-28

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

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

IPC分类号： G03G910

CPC分类号： G03G9/1075 ,  G03G9/08782 ,  G03G9/09708 ,  G03G9/09716

摘要： 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.

摘要翻译： 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：US06379857B1

公开(公告)日：2002-04-30

申请号：US09707932

申请日：2000-11-08

申请人： Tetsuya Taguchi ,  Akihiro Iizuka ,  Koutarou Yoshihara ,  Susumu Yoshino ,  Haruhide Ishida ,  Rieko Kataoka

发明人： Tetsuya Taguchi ,  Akihiro Iizuka ,  Koutarou Yoshihara ,  Susumu Yoshino ,  Haruhide Ishida ,  Rieko Kataoka

IPC分类号： G03G1314

CPC分类号： G03G9/0823 ,  G03G13/013 ,  G03G2215/0609

摘要： Provided is a method for image formation capable of stably outputting high-quality images with no image density unevenness for a long period of time, in which the images formed are free from image defects of edge deletions and other deletions therein and which ensures good and uniform developability everywhere in the latent image region to be developed with preventing the latent image support used from being degraded. The method includes a step of forming a latent image on a latent image support, a step of developing the latent image on the latent image support with a two-component developer on a developer support disposed to face the latent image support, and a step of transferring the thus-developed toner image onto a transfer medium, wherein the developer support is a cylindrical sleeve having a diameter of at most 20 mm or the latent image support is a cylindrical sleeve having a diameter of at most 40 mm, and the resistance of the two-component developer is at least 1013&OHgr; in an electric field of 2 V/&mgr;m.

摘要翻译： 本发明提供一种图像形成方法，其能够稳定地输出长时间没有图像浓度不均匀的高质量图像，其中所形成的图像没有边缘缺失的图像缺陷和其他缺失，并且确保良好和均匀 在潜像图像区域中随处可见的显影性能可以防止所使用的潜像支持物降解。 该方法包括在潜像载体上形成潜像的步骤，用设置在与潜像载体相对的显影剂载体上的双组分显影剂将潜影载体上的潜像显影的步骤，以及步骤 将如此显影的调色剂图像转印到转印介质上，其中显影剂载体是直径至多为20mm的圆柱形套筒，或​​潜像载体为直径至多为40mm的圆柱形套筒， 双组分显影剂在2V / m 2的电场中为至少1013OMEGA。

公开(公告)号：US06617088B2

公开(公告)日：2003-09-09

申请号：US09859498

申请日：2001-05-18

申请人： Akihiro Iizuka ,  Susumu Yoshino ,  Koutarou Yoshihara ,  Tetsuya Taguchi

发明人： Akihiro Iizuka ,  Susumu Yoshino ,  Koutarou Yoshihara ,  Tetsuya Taguchi

IPC分类号： G03G908

CPC分类号： G03G9/09708 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08782 ,  G03G9/09716 ,  G03G9/1075 ,  G03G9/113 ,  G03G9/1135 ,  G03G9/1137 ,  G03G9/1138 ,  G03G9/1139

摘要： A developer for a trickle developing method is used in formation of a full color image and is made of a mixture of a toner and a carrier. The toner contains inorganic fine particles as an internal additive and an external additive, a volume average particle diameter D50v of the toner is between 5.0 and 9.0 &mgr;m, a true specific gravity of the carrier is between 3.00 and 4.60, a volume average particle diameter of the carrier is between 15 and 60 &mgr;m, and the ratio of the volume average particle diameter of the carrier to the volume average particle diameter of the toner is between 3.00 and 7.00, and an image forming method using the developer. The developer for the trickle developing method prevents the embedding of the external additive in the toner by suppressing impact energy given by stirring the carrier and the toner in a developing device and a replenishment device of the developer, and has a resistance to toner degradation, an excellent transferability, a resistance to carrier contamination and a stable chargeability.

公开(公告)号：US08389192B2

公开(公告)日：2013-03-05

申请号：US12726617

申请日：2010-03-18

申请人： Fusako Kiyono ,  Takeshi Shoji ,  Yosuke Tsurumi ,  Akihiro Iizuka

发明人： Fusako Kiyono ,  Takeshi Shoji ,  Yosuke Tsurumi ,  Akihiro Iizuka

IPC分类号： G03G9/00

CPC分类号： G03G9/1133 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08797 ,  G03G9/1139 ,  G03G2215/0607

摘要： An electrophotographic carrier includes a magnetic core material and a resin layer that coats the magnetic core material, the resin layer comprising a resistance control agent and a polymer including a repeating unit derived from an alicyclic group-containing methacrylic ester, the resin layer including a monomer as a base material of the repeating unit in the polymer in an amount of from about 0.5% by weight to about 3.0% by weight relative to the total amount of the resin layer.

摘要翻译： 电子摄影载体包括磁芯材料和涂覆磁芯材料的树脂层，树脂层包括电阻控制剂和包含衍生自含脂环基的甲基丙烯酸酯的重复单元的聚合物，所述树脂层包含单体 作为聚合物中重复单元的基材，其量相对于树脂层的总量为约0.5重量％至约3.0重量％。

公开(公告)号：US07745087B2

公开(公告)日：2010-06-29

申请号：US11905283

申请日：2007-09-28

申请人： Yosuke Tsurumi ,  Akihiro Iizuka ,  Tsuyoshi Murakami

发明人： Yosuke Tsurumi ,  Akihiro Iizuka ,  Tsuyoshi Murakami

IPC分类号： G03G9/093

CPC分类号： G03G9/1132 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1075 ,  G03G2215/0132 ,  G03G2215/0609

摘要： An electrostatic image developer contains a toner and a carrier having a resin coating layer formed on the surface of a core material containing a ferrite component, wherein a ratio R1/R2 is from 0.88 to 0.92 where R1 is the resistance value (Ω) of the developer having a toner concentration of 2 mass % in a state formed into a magnetic brush, at an applied voltage of 104 V/cm, and R2 is the resistance value (Ω) of the developer having a toner concentration of 12 mass % in a state formed into a magnetic brush, at an applied voltage of 104 V/cm.

摘要翻译： 静电图像显影剂含有调色剂和载体，该树脂涂层形成在含有铁素体组分的芯材的表面上，其中R1 / R2的比值为0.88至0.92，其中R1是电阻值（＆OHgr） 显影剂在形成磁刷的状态下的调色剂浓度为2质量％，施加电压为104V / cm，R2为调色剂浓度为12质量％的显影剂的电阻值（＆amp; OHgr） 在形成为磁刷的状态下，以施加的电压为104V / cm。

公开(公告)号：US20090109448A1

公开(公告)日：2009-04-30

申请号：US12166975

申请日：2008-07-02

申请人： Fusako Kiyono ,  Taichi Yamada ,  Yosuke Tsurumi ,  Akira Matsumoto ,  Akihiro Iizuka ,  Tsuyoshi Murakami

发明人： Fusako Kiyono ,  Taichi Yamada ,  Yosuke Tsurumi ,  Akira Matsumoto ,  Akihiro Iizuka ,  Tsuyoshi Murakami

IPC分类号： G06F3/12 ,  G03G9/083

CPC分类号： G03G9/1075 ,  G03G9/10 ,  G03G9/1133 ,  G03G9/1135 ,  G03G9/1138 ,  G03G9/1139

摘要： An electrostatic charge image developing carrier includes: a magnetic particle; and a resin coating layer that covers a surface of the magnetic particle with a resin, the resin coating layer containing an acid having a cyclic diterpene structure and either of carbon black or nigrosine dispersed therein.

摘要翻译： 静电荷图像显影载体包括：磁性颗粒; 以及树脂覆盖层，其用树脂覆盖磁性粒子的表面，该树脂被覆层含有分布在其中的环状二萜结构的酸和分散在其中的炭黑或苯胺黑。

公开(公告)号：US07939234B2

公开(公告)日：2011-05-10

申请号：US11806223

申请日：2007-05-30

申请人： Akira Matsumoto ,  Akihiro Iizuka ,  Fusako Kiyono

发明人： Akira Matsumoto ,  Akihiro Iizuka ,  Fusako Kiyono

IPC分类号： G03G9/00

CPC分类号： G03G15/09 ,  G03G9/09708 ,  G03G9/107 ,  G03G9/1132 ,  G03G9/1139 ,  G03G15/095 ,  G03G2215/0609

摘要： An image forming apparatus, including a latent image-holding member, a developing unit, a transfer unit, a cleaning unit, and a recycling unit, wherein the developer includes a toner having an external-additive adhesiveness index SA in the range of approximately 50% to approximately 95% and: a carrier containing magnetic particles and a coating layer coating the surface of the magnetic particles and having a total energy of approximately 1,420 to approximately 2,920 mJ; or a carrier containing magnetic powder-dispersed particles and a coating layer coating the surface of the magnetic powder-dispersed particles and having a total energy of, approximately 890 to approximately 1,390 mJ.

摘要翻译： 一种图像形成装置，包括潜像保持构件，显影单元，转印单元，清洁单元和再循环单元，其中显影剂包括具有约50的范围内的外部添加剂粘合指数SA的调色剂 ％至约95％，和：含有磁性颗粒的载体和涂覆磁性颗粒表面的涂层，其总能量约为1,420至约2920mJ; 或包含磁粉分散颗粒的载体和涂覆磁粉分散颗粒表面的涂层，其总能量约为890至约1390mJ。

公开(公告)号：US20080081278A1

公开(公告)日：2008-04-03

申请号：US11806223

申请日：2007-05-30

申请人： Akira Matsumoto ,  Akihiro Iizuka ,  Fusako Kiyono

发明人： Akira Matsumoto ,  Akihiro Iizuka ,  Fusako Kiyono

IPC分类号： G03G15/09 ,  G03G9/113

CPC分类号： G03G15/09 ,  G03G9/09708 ,  G03G9/107 ,  G03G9/1132 ,  G03G9/1139 ,  G03G15/095 ,  G03G2215/0609

摘要： An image forming apparatus, including a latent image-holding member, a developing unit, a transfer unit, a cleaning unit, and a recycling unit, wherein the developer includes a toner having an external-additive adhesiveness index SA in the range of approximately 50% to approximately 95% and: a carrier containing magnetic particles and a coating layer coating the surface of the magnetic particles and having a total energy of approximately 1,420 to approximately 2,920 mJ; or a carrier containing magnetic powder-dispersed particles and a coating layer coating the surface of the magnetic powder-dispersed particles and having a total energy of, approximately 890 to approximately 1,390 mJ.

摘要翻译： 一种图像形成装置，包括潜像保持构件，显影单元，转印单元，清洁单元和再循环单元，其中显影剂包括具有约50的范围内的外部添加剂粘合指数SA的调色剂 ％至约95％，和：含有磁性颗粒的载体和涂覆磁性颗粒表面的涂层，其总能量约为1,420至约2920mJ; 或包含磁粉分散颗粒的载体和涂覆磁粉分散颗粒表面的涂层，其总能量约为890至约1390mJ。

公开(公告)号：US20080056769A1

公开(公告)日：2008-03-06

申请号：US11730899

申请日：2007-04-04

申请人： Akihiro Iizuka ,  Fusako Kiyono ,  Tsuyoshi Murakami

发明人： Akihiro Iizuka ,  Fusako Kiyono ,  Tsuyoshi Murakami

IPC分类号： G03G9/00 ,  G03G15/08

CPC分类号： G03G15/0818 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1132 ,  G03G9/1133 ,  G03G9/1139

摘要： An electrostatic image developing carrier including at least a core material and a coating resin layer which coats the surface of the core material, the resin layer comprising a thermoplastic resin having an alicyclic group, a thermal reduction in accordance with the TGA method being in the range of 0.5 weight % to 5 weight % of the whole of the carrier in the range of 100° C. to 400° C., and further an endothermic quantity of the whole of the carrier in accordance with the DTA method is in the range of 7 mJ/g to 40 mJ/g in the range of 100° C. to 400° C.

摘要翻译： 一种静电显影载体，其至少包括芯材和涂覆在芯材表面的涂层树脂层，所述树脂层包含具有脂环族基团的热塑性树脂，根据TGA方法的热还原范围为 为100〜400℃范围的全部载体的0.5〜5重量％，进一步根据DTA法的整个载体的吸热量在 在100℃至400℃的范围内为7mJ / g至40mJ / g。

公开(公告)号：US4939827A

公开(公告)日：1990-07-10

申请号：US251352

申请日：1988-09-26

申请人： Akihiro Iizuka

发明人： Akihiro Iizuka

IPC分类号： B21D39/00 ,  B21K25/00 ,  B23P11/02 ,  B23P15/00 ,  F16C33/08 ,  F16C33/14

CPC分类号： F16C33/08 ,  B21K25/00 ,  B23P11/02 ,  B23P15/003 ,  Y10T29/49668 ,  Y10T29/49925 ,  Y10T29/49945

摘要： A method of manufacturing a bearing device having a housing into which a bearing bush is press-fitted. This method includes forming a tapered shape of a bearing hole of a bearing bush, and press-fitting the bearing bush into a bore of the housing having a uniform inside diameter.

摘要翻译： 一种制造具有壳体的轴承装置的方法，轴承衬套被压配入该壳体中。 该方法包括形成轴承座的轴承孔的锥形形状，并将轴承衬套压配合到具有均匀内径的壳体的孔中。