公开(公告)号：US09042802B2

公开(公告)日：2015-05-26

申请号：US14190459

申请日：2014-02-26

申请人： Takamasa Hase ,  Shinya Nakayama ,  Atsushi Yamamoto ,  Hideyuki Santo ,  Minoru Masuda ,  Yukiko Iwasaki ,  Tsuneyasu Nagatomo

发明人： Takamasa Hase ,  Shinya Nakayama ,  Atsushi Yamamoto ,  Hideyuki Santo ,  Minoru Masuda ,  Yukiko Iwasaki ,  Tsuneyasu Nagatomo

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G15/2028 ,  G03G2215/2032 ,  G03G2215/2035

摘要： An image forming apparatus includes: an image bearing member; a charger; an irradiator; a development device having an accommodation unit to accommodate toner to obtain a visible image; a transfer device; and a fixing device to fix the visible image transferred onto a recording medium. The fixing device having a fixing rotation member; and a pressure rotation member to form a nipping portion by contacting the fixing rotation member, wherein the surface pressure of the nipping portion is 1.5 kgf/cm2 or less, wherein the fixing rotation member has a Martens hardness of 1.0 N/mm2 or less at 23° C., wherein the ratio of the projected area of a single particle of the toner onto the recording medium at 120° C. to the projected area of a single particle of the toner onto the recording medium at 23° C. is 1.60 or less.

摘要翻译： 图像形成装置包括：图像承载部件; 充电器 辐照器 具有容纳单元以容纳调色剂以获得可见图像的显影装置; 转移装置; 以及固定装置，用于固定转印到记录介质上的可见图像。 固定装置具有固定旋转构件; 以及压力旋转构件，其通过使所述固定旋转构件接触而形成夹持部，其中所述夹持部的表面压力为1.5kgf / cm 2以下，其中，所述固定旋转构件的马氏体硬度为1.0N / mm 2以下， 23℃，其中调色剂的单个颗粒在120℃下的投影面积与在23℃下记录介质上调色剂的单个颗粒的投影面积的比率为1.60 或更少。

公开(公告)号：US20140270874A1

公开(公告)日：2014-09-18

申请号：US14190459

申请日：2014-02-26

申请人： Takamasa Hase ,  Shinya Nakayama ,  Atsushi Yamamoto ,  Hideyuki Santo ,  Minoru Masuda ,  Yukiko Iwasaki ,  Tsuneyasu Nagatomo

发明人： Takamasa Hase ,  Shinya Nakayama ,  Atsushi Yamamoto ,  Hideyuki Santo ,  Minoru Masuda ,  Yukiko Iwasaki ,  Tsuneyasu Nagatomo

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G15/2028 ,  G03G2215/2032 ,  G03G2215/2035

摘要： An image forming apparatus includes: an image bearing member; a charger; an irradiator; a development device having an accommodation unit to accommodate toner to obtain a visible image; a transfer device; and a fixing device to fix the visible image transferred onto a recording medium. The fixing device having a fixing rotation member; and a pressure rotation member to form a nipping portion by contacting the fixing rotation member, wherein the surface pressure of the nipping portion is 1.5 kgf/cm2 or less, wherein the fixing rotation member has a Martens hardness of 1.0 N/mm2 or less at 23° C., wherein the ratio of the projected area of a single particle of the toner onto the recording medium at 120° C. to the projected area of a single particle of the toner onto the recording medium at 23° C. is 1.60 or less.

摘要翻译： 图像形成装置包括：图像承载部件; 充电器 辐照器 具有容纳单元以容纳调色剂以获得可见图像的显影装置; 转移装置; 以及固定装置，用于固定转印到记录介质上的可见图像。 固定装置具有固定旋转构件; 以及压力旋转构件，其通过使所述固定旋转构件接触而形成夹持部，其中所述夹持部的表面压力为1.5kgf / cm 2以下，其中，所述固定旋转构件的马氏体硬度为1.0N / mm 2以下， 23℃，其中调色剂的单个颗粒在120℃下的投影面积与在23℃下记录介质上调色剂的单个颗粒的投影面积的比率为1.60 或更少。

公开(公告)号：US09891548B2

公开(公告)日：2018-02-13

申请号：US14729180

申请日：2015-06-03

申请人： Takamasa Hase ,  Yukiko Iwasaki ,  Minoru Masuda ,  Tsuneyasu Nagatomo ,  Kenji Yoneda

发明人： Takamasa Hase ,  Yukiko Iwasaki ,  Minoru Masuda ,  Tsuneyasu Nagatomo ,  Kenji Yoneda

IPC分类号： G03G13/20 ,  G03G13/08 ,  G03G9/087 ,  G03G15/20 ,  G03G15/00 ,  G03G15/08 ,  G03G15/16

CPC分类号： G03G13/20 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G13/08 ,  G03G15/08 ,  G03G15/16 ,  G03G15/2057 ,  G03G15/6591 ,  G03G2215/0129

摘要： An image forming method is provided. The method includes the steps of forming an electrostatic latent image on a photoconductor; developing the electrostatic latent image into a toner image with a toner; transferring the toner image onto a recording medium having a smoothness of 20 s or less; and fixing the toner image on the recording medium. The toner exhibits an adhesion force of 100 gf or more, where the adhesion force is the maximum value of a pull force between a layer of the toner and standard paper determined by a tacking test with a probe temperature of 140° C.

公开(公告)号：US07455942B2

公开(公告)日：2008-11-25

申请号：US11227566

申请日：2005-09-16

申请人： Tsuneyasu Nagatomo ,  Akihiro Kotsugai ,  Hiroshi Yamashita ,  Masayuki Ishii ,  Hiroto Higuchi ,  Osamu Uchinokura ,  Satoshi Mochizuki ,  Fumihiro Sasaki ,  Hisashi Nakajima ,  Hideki Sugiura ,  Yasuo Asahina ,  Shinya Nakayama ,  Koichi Sakata ,  Tomoyuki Ichikawa ,  Takuya Saito ,  Sonoh Matsuoka

发明人： Tsuneyasu Nagatomo ,  Akihiro Kotsugai ,  Hiroshi Yamashita ,  Masayuki Ishii ,  Hiroto Higuchi ,  Osamu Uchinokura ,  Satoshi Mochizuki ,  Fumihiro Sasaki ,  Hisashi Nakajima ,  Hideki Sugiura ,  Yasuo Asahina ,  Shinya Nakayama ,  Koichi Sakata ,  Tomoyuki Ichikawa ,  Takuya Saito ,  Sonoh Matsuoka

IPC分类号： G03G9/08

CPC分类号： G03G9/097

摘要： It is an object of the present invention to provide a toner that can sustain favorable transferability and cleaning ability for prolonged periods; prevent photoconductor filming; exhibit no variation in image nonuniformity or external additive immersion induced by developer agitation at the time of use; excels in stability with flowability and charge stability over prolonged periods. Therefore, provided is the toner of which the quantity of aggregate of residual external additives found on the sieve of 635-mesh and 452 cm2 of mesh area, after 0.2 g of the toner on the sieve is blasted with air at a blow pressure of 0.2 MPa from 160 mm above the sieve while being air-suctioned at a suction force of 5 mmHg, and then air-suctioned at a suction force of 20 mmHg, is 4,500 or less and 5 or more.

摘要翻译： 本发明的一个目的是提供一种能够延长期间的转印性和清洁能力的调色剂。 防止感光膜成膜; 在使用时不显示由显影剂搅拌引起的图像不均匀性或外部添加剂浸渍的变化; 在长时间内具有流动性和电荷稳定性的稳定性。 因此，提供了在筛上的0.2g调色剂之后，在筛网上存在635目筛和452cm 2网眼面积的残余外部添加剂骨料数量的调色剂 在空气中以160mm的筛子空气吹压压力为0.2MPa，同时以5mmHg的抽吸力空气抽吸，然后以20mmHg的抽吸力空气抽吸为4,500以下且5以上。

公开(公告)号：US11054757B2

公开(公告)日：2021-07-06

申请号：US16583861

申请日：2019-09-26

申请人： Yohichi Kitagawa ,  Keiji Makabe ,  Yuka Mizoguchi ,  Tsuneyasu Nagatomo ,  Shinya Nakayama

发明人： Yohichi Kitagawa ,  Keiji Makabe ,  Yuka Mizoguchi ,  Tsuneyasu Nagatomo ,  Shinya Nakayama

IPC分类号： G03G9/087 ,  G03G9/08 ,  G03G21/18 ,  G03G15/08

摘要： A toner including toner base particles each including a binder resin and a colorant, and external additive, wherein the toner satisfies conditions (a), (b), and (c) below: (a) storage elastic modulus G′(50) of the toner at 50° C. and storage elastic modulus G′(90) of the toner at 90° C. satisfy Formula (1); G′(50)/G′(90)≥6.0×102  Formula (1) (b) a BET specific surface area Bt(m2/g) of the toner and a coverage Ct (%) of the toner base particles covered with the external additive satisfy Formula (2); and Bt−0.03×Ct≤1.60  Formula (2) (c) the external additive includes at least cohered particles, the cohered particles are non-spherical secondary particles each formed through cohesion of primary particles, and a number average secondary particle diameter of the cohered particles is 130 nm or greater.

公开(公告)号：US20060063081A1

公开(公告)日：2006-03-23

申请号：US11227566

申请日：2005-09-16

申请人： Tsuneyasu Nagatomo ,  Akihiro Kotsugai ,  Hiroshi Yamashita ,  Masayuki Ishii ,  Hiroto Higuchi ,  Osamu Uchinokura ,  Satoshi Mochizuki ,  Fumihiro Sasaki ,  Hisashi Nakajima ,  Hideki Sugiura ,  Yasuo Asahina ,  Shinya Nakayama ,  Koichi Sakata ,  Tomoyuki Ichikawa ,  Takuya Saito ,  Sonoh Matsuoka

发明人： Tsuneyasu Nagatomo ,  Akihiro Kotsugai ,  Hiroshi Yamashita ,  Masayuki Ishii ,  Hiroto Higuchi ,  Osamu Uchinokura ,  Satoshi Mochizuki ,  Fumihiro Sasaki ,  Hisashi Nakajima ,  Hideki Sugiura ,  Yasuo Asahina ,  Shinya Nakayama ,  Koichi Sakata ,  Tomoyuki Ichikawa ,  Takuya Saito ,  Sonoh Matsuoka

IPC分类号： G03G9/08

CPC分类号： G03G9/097

摘要： It is an object of the present invention to provide a toner that can sustain favorable transferability and cleaning ability for prolonged periods; prevent photoconductor filming; exhibit no variation in image nonuniformity or external additive immersion induced by developer agitation at the time of use; excels in stability with flowability and charge stability over prolonged periods. Therefore, provided is the toner of which the quantity of aggregate of residual external additives found on the sieve of 635-mesh and 452 cm2 of mesh area, after 0.2 g of the toner on the sieve is blasted with air at a blow pressure of 0.2 MPa from 160 mm above the sieve while being air-suctioned at a suction force of 5 mmHg, and then air-suctioned at a suction force of 20 mmHg, is 4,500 or less and 5 or more.

摘要翻译： 本发明的一个目的是提供一种能够延长期间的转印性和清洁能力的调色剂。 防止感光膜成膜; 在使用时不显示由显影剂搅拌引起的图像不均匀性或外部添加剂浸渍的变化; 在长时间内具有流动性和电荷稳定性的稳定性。 因此，提供了在筛上的0.2g调色剂之后，在筛网上存在635目筛和452cm 2网眼面积的残余外部添加剂骨料数量的调色剂 在空气中以160mm的筛子空气吹压压力为0.2MPa，同时以5mmHg的抽吸力空气抽吸，然后以20mmHg的抽吸力空气抽吸为4,500以下且5以上。

公开(公告)号：US20230139673A1

公开(公告)日：2023-05-04

申请号：US18046436

申请日：2022-10-13

申请人： Kohsuke SATOH ,  Tsuneyasu Nagatomo ,  Junichi Watanabe

发明人： Kohsuke SATOH ,  Tsuneyasu Nagatomo ,  Junichi Watanabe

IPC分类号： C08L67/02 ,  C08G63/183 ,  G03G9/087 ,  G03G9/08

摘要： The present disclosure provides a resin particle including a binder resin, in which the binder resin contains a biomass-derived resin and a recycled resin, and a content (% by mass) of the biomass-derived resin and a content (% by mass) of the recycled resin in the binder resin satisfy the following relational equation (1): Content of recycled resin >Content of biomass-derived resin.

公开(公告)号：US10295919B2

公开(公告)日：2019-05-21

申请号：US15846568

申请日：2017-12-19

申请人： Keiji Makabe ,  Tsuneyasu Nagatomo ,  Kohsuke Satoh ,  Kenji Yoneda

发明人： Keiji Makabe ,  Tsuneyasu Nagatomo ,  Kohsuke Satoh ,  Kenji Yoneda

IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G9/09 ,  G03G9/087 ,  G03G15/08

摘要： A toner is provided. The toner includes toner particles each including a mother particle and external additive particles covering the mother particle. In a SEM image of the toner, toner particles having a ratio Sd/St of from 5% to 50% are present at a frequency of 15% or more, where Sd representing an area of a largest recessed portion D of each toner particle and St representing whole area of the toner particle, Sd and St determined from the SEM image magnified and binarized to discriminate recessed portions and projected portions of the toner particle from each other. An external additive coverage rate Ca at the largest recessed portion D is from 30% to 100%.

公开(公告)号：US20130216944A1

公开(公告)日：2013-08-22

申请号：US13877108

申请日：2011-10-18

申请人： Masana Shiba ,  Ryuta Chiba ,  Tsuneyasu Nagatomo

发明人： Masana Shiba ,  Ryuta Chiba ,  Tsuneyasu Nagatomo

IPC分类号： G03G9/00 ,  G03G15/08

CPC分类号： G03G9/0819 ,  G03G9/0804 ,  G03G9/0806 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08795

摘要： A toner contains a binder resin, a colorant, and a releasing agent, wherein the toner contains toner particles, and wherein a proportion of the toner particles containing one or more voids having diameters D1 of larger than 0.0 μm but 0.5 μm or smaller is more than 5.0% to 60%, and a proportion of the toner particles containing one or more voids having diameters D2 of 1.0 μm or larger is 10% or less.

摘要翻译： 调色剂含有粘合剂树脂，着色剂和脱模剂，其中调色剂含有调色剂颗粒，并且其中包含一个或多个直径D1大于0.0μm但为0.5μm或更小的空隙的调色剂颗粒的比例更多 5.0％以上60％以下，直径D2为1.0μm以上的一个或多个空隙的调色剂颗粒的比例为10％以下。

公开(公告)号：US20130130171A1

公开(公告)日：2013-05-23

申请号：US13666332

申请日：2012-11-01

申请人： Masaki Watanabe ,  Osamu Uchinokura ,  Junichi Awamura ,  Takahiro Honda ,  Satoshi Ogawa ,  Tsuneyasu Nagatomo ,  Hiroshi Yamashita

发明人： Masaki Watanabe ,  Osamu Uchinokura ,  Junichi Awamura ,  Takahiro Honda ,  Satoshi Ogawa ,  Tsuneyasu Nagatomo ,  Hiroshi Yamashita

IPC分类号： G03G9/08

CPC分类号： G03G9/0825 ,  G03G9/09314 ,  G03G9/09321 ,  G03G9/09328 ,  G03G9/09392

摘要： A toner including a core particle, an inner shell layer covering the core, and an outer shell layer covering the inner shell layer is provided. The core particle includes a resin P. The inner shell layer includes fine particles of a resin A. The outer shell layer includes fine particles of a resin B. The toner satisfies the following formulae (1) to (3): 4.5≦T½(P)−Tfb(P)≦14  (1) 20≦T½(A)−Tfb(A)≦40  (2) 23.5≦T½(B)−Tfb(B)≦40  (3) wherein T½(P), T½(A), and T½(B) represent ½ method temperatures of the resins P, A, and B, respectively, and Tfb(P), Tfb(A), and Tfb(B) represent flow beginning temperatures of the resins P, A, and B, respectively, and wherein the ½ method temperatures and the flow beginning temperatures are measured by a flowtester.

摘要翻译： 提供了包括芯颗粒，覆盖芯的内壳层和覆盖内壳层的外壳层的调色剂。 核心颗粒包括树脂P.内壳层包括树脂A的细颗粒。外壳层包括树脂B的细颗粒。调色剂满足下式（1）至（3）：4.5@T 1/2（ P）-Tfb（P）@ 14（1）20 @ T 1/2（A）-Tfb（A）@ 40（2）23.5@T½（B）-Tfb（B）@ 40（3） T 1/2（A）和T 1/2（B）分别表示树脂P，A和B的1/2方法温度，Tfb（P），Tfb（A）和Tfb（B）表示树脂P的流动开始温度 ，A和B，并且其中1/2方法温度和流动开始温度由流动器测量。