公开(公告)号：US20200019100A1

公开(公告)日：2020-01-16

申请号：US16444216

申请日：2019-06-18

Applicant: CANON KABUSHIKI KAISHA

Inventor： Akeshi Asaka ,  Naoki Akiyama ,  Hiroto Sugimoto ,  Hiroki Muramatsu ,  Yasuhiro Miyahara ,  Noriaki Kobayashi

IPC: G03G15/20 ,  B29C44/12 ,  B29C44/42 ,  B29C44/34 ,  B29C33/56

Abstract: A fixing apparatus includes an endless belt, and a pressing member including a base body and an elastic layer formed on the base body. A plurality of pore portions connected to each other are provided in the elastic layer. In a case where a binary image is generated from a three-dimensional image of the elastic layer, a threshold value X μm corresponding to opening processing with which a number of pores derived from the pore portions takes a maximum value is obtained, and then pores derived from the pore portions in the elastic layer are extracted by performing opening processing with a threshold value of 2X μm, an average value of angles θ is 120° or larger and smaller than 150°.

公开(公告)号：US09459572B2

公开(公告)日：2016-10-04

申请号：US14063229

申请日：2013-10-25

Applicant: CANON KABUSHIKI KAISHA

Inventor： Naoki Akiyama ,  Hiroto Sugimoto ,  Yasuhiro Miyahara ,  Nobuyuki Kume ,  Yoshiaki Yoshida

IPC: G03G15/20

CPC classification number: G03G15/2057 ,  G03G15/2017 ,  G03G2215/2032

Abstract: A fixing member manufacturing method includes: a step of holding a longitudinal end of a resin tube by a first holding tool; a step of holding another longitudinal end of the resin tube by a second holding tool; a step of decreasing a distance between the first and second holding tools each holding the resin tube, by a predetermined amount; a step of expanding, after the decreasing step, the resin tube in a radial direction; and a step of externally fitting the resin tube, expanded in the radial direction, around an elastic material coated with an adhesive.

Abstract translation: 固定部件制造方法包括：通过第一保持工具保持树脂管的纵向端部的步骤; 通过第二保持工具保持树脂管的另一纵向端部的步骤; 将保持树脂管的第一和第二保持工具之间的距离减小预定量的步骤; 在减径阶段之后使树脂管沿径向膨胀的步骤; 以及将在径向方向上扩展的树脂管外部装配在涂覆有粘合剂的弹性材料周围的步骤。

公开(公告)号：US09436138B2

公开(公告)日：2016-09-06

申请号：US14987623

申请日：2016-01-04

Applicant: CANON KABUSHIKI KAISHA

Inventor： Katsuhisa Matsunaka ,  Katsuya Abe ,  Naoki Akiyama ,  Yasuhiro Miyahara

IPC: G03G15/20

CPC classification number: G03G15/2057 ,  G03G2215/0135 ,  G03G2215/2035

Abstract: A fixing member includes a substrate and an elastic layer on the substrate. The elastic layer comprises a cured product of a silicone rubber composition containing an anatase titanium oxide particle and an addition-curable silicone rubber, and undergoes cohesive failure in 90° peel test specified in JIS K6854-1: 1999. In the fixing member, an allyl group bound to a silicon atom is present at the interface between the substrate and the elastic layer.

Abstract translation: 固定部件包括基板和基板上的弹性层。 弹性层包含含有锐钛矿型氧化钛粒子和可加成固化型硅橡胶的硅橡胶组合物的固化物，在JIS K6854-1：1999规定的90°剥离试验中发生内聚破坏。在固定部件中， 与硅原子结合的烯丙基存在于基材和弹性层之间的界面处。

公开(公告)号：US09335690B2

公开(公告)日：2016-05-10

申请号：US14562997

申请日：2014-12-08

Applicant: CANON KABUSHIKI KAISHA

Inventor： Akeshi Asaka ,  Shuichi Tamura ,  Daigo Matsuura ,  Shigeaki Takada ,  Naoki Akiyama ,  Yasuhiro Miyahara

IPC: G03G15/20

CPC classification number: G03G15/206

Abstract: A pressing roller includes a cylindrical core metal; a first rubber layer of non-porous material provided on the core metal; and a second rubber layer of porous material provided on the first rubber layer, wherein the second rubber layer includes a thermo-conductive filler dispersed therein such that a thermal conductivity of the second rubber layer in a longitudinal direction is higher than a thermal conductivity thereof in a thickness direction, and wherein the first rubber layer includes a thermo-conductive filler dispersed therein such that a thermal conductivity of the first rubber layer in an thickness direction is higher than a thermal conductivity of the second rubber layer in the thickness direction of the second rubber layer.

Abstract translation: 压辊包括圆筒形芯金属; 提供在芯金属上的无孔材料的第一橡胶层; 以及设置在所述第一橡胶层上的多孔材料的第二橡胶层，其中所述第二橡胶层包括分散在其中的导热性填料，使得所述第二橡胶层在纵向方向上的导热率高于其导热性 厚度方向，并且其中所述第一橡胶层包括分散在其中的热导性填料，使得所述第一橡胶层在厚度方向上的热导率高于所述第二橡胶层在所述第二橡胶层的厚度方向上的导热率 橡胶层。

公开(公告)号：US09315703B2

公开(公告)日：2016-04-19

申请号：US14726810

申请日：2015-06-01

Applicant: CANON KABUSHIKI KAISHA

Inventor： Katsuhisa Matsunaka ,  Kazuo Kishino ,  Katsuya Abe ,  Takeshi Suzuki ,  Naoki Akiyama ,  Yasuhiro Miyahara ,  Hiroto Sugimoto

IPC: G03G15/20 ,  C09J183/04 ,  B05D3/02 ,  C08K7/24

CPC classification number: C09J183/04 ,  B05D3/0272 ,  C08G77/12 ,  C08G77/20 ,  C08K3/04 ,  C08K3/041 ,  C08K5/56 ,  C08K7/24 ,  C08K2201/005 ,  C08K2201/011 ,  C08L83/00 ,  C08L83/04 ,  G03G15/2057 ,  G03G2215/2035

Abstract: Provided is a fixing member having a silicone rubber elastic layer blended with a carbon nanotube, the fixing member suppressing peeling at an interface in association with insufficient adhesion between a base member and the silicone rubber elastic layer at the time of the use of the fixing member, and hence securing adhesion durability. The fixing member includes a base member, an elastic layer, and a surface layer, in which: the elastic layer contains a silicone rubber and a carbon nanotube; a ratio E200/E50 of an elastic modulus E200 of the elastic layer at 200° C. to an elastic modulus E50 of the elastic layer at 50° C. is 0.5 or more and less than 1.0; an adhesive strength between the elastic layer and the base member is 3.0 N/cm or more and 20.0 N/cm or less; and the elastic layer undergoes a cohesive failure at the time of a peel test.

Abstract translation: 提供一种固定构件，其具有与碳纳米管共混的硅橡胶弹性层，所述固定构件在使用固定构件时抑制界面处的剥离与基底构件与硅橡胶弹性层之间的粘合性不足相关联 ，从而确保粘合耐久性。 固定构件包括基底构件，弹性层和表面层，其中：弹性层含有硅橡胶和碳纳米管; 200℃下的弹性层的弹性模量E200与50℃下的弹性层的弹性模量E50的比率E200 / E50为0.5以上且小于1.0， 弹性层和基材之间的粘合强度为3.0N / cm以上且20.0N / cm以下; 并且在剥离试验时弹性层发生内聚破坏。

公开(公告)号：US09256176B2

公开(公告)日：2016-02-09

申请号：US14283414

申请日：2014-05-21

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yasuhiro Miyahara

IPC: G03G15/20 ,  B32B37/14 ,  B32B7/00 ,  B32B25/00 ,  B32B25/08 ,  B32B25/20 ,  B32B27/06 ,  B32B27/08 ,  B32B27/20 ,  B32B27/28 ,  B32B27/30 ,  B32B27/32 ,  B32B1/08 ,  B32B38/16 ,  B32B37/24 ,  B32B38/00

CPC classification number: G03G15/2057 ,  B32B1/08 ,  B32B7/00 ,  B32B25/00 ,  B32B25/08 ,  B32B25/20 ,  B32B27/06 ,  B32B27/08 ,  B32B27/20 ,  B32B27/28 ,  B32B27/304 ,  B32B27/322 ,  B32B37/14 ,  B32B38/16 ,  B32B2037/243 ,  B32B2038/0072 ,  B32B2264/00 ,  B32B2307/30 ,  B32B2307/306 ,  B32B2307/51 ,  B32B2307/746 ,  B32B2311/18 ,  B32B2311/20 ,  B32B2311/24 ,  B32B2313/04 ,  B32B2413/00 ,  G03G15/2053 ,  G03G2215/2035

Abstract: A fixing belt includes an inner layer, serving as a sliding layer, in which filler particles having an aspect ratio of 5 or more are oriented substantially in the longitudinal direction of the fixing belt.

Abstract translation: 定影带包括用作滑动层的内层，其中纵横比为5以上的填料颗粒基本上沿着定影带的纵向取向。

公开(公告)号：US20150147101A1

公开(公告)日：2015-05-28

申请号：US14553115

申请日：2014-11-25

Applicant: CANON KABUSHIKI KAISHA

Inventor： Toshinori Nakayama ,  Hiroto Sugimoto ,  Masayuki Tamaki ,  Koichi Kakubari ,  Katsuhisa Matsunaka ,  Yutaka Arai ,  Jun Miura ,  Takeshi Suzuki ,  Naoki Akiyama ,  Shigeaki Takada ,  Yasuhiro Miyahara

IPC: G03G15/20

CPC classification number: G03G15/206 ,  G03G15/2057

Abstract: An image heating apparatus includes an endless belt configured to heat an image on a sheet at a nip potion, a heat generation device configured to cause the belt to generate heat, a nip forming member configured to form the nip portion between the nip forming member and the belt, and a pressing roller configured to press an inner surface of the belt toward the nip forming member, the pressing roller including an elastic porous layer containing a plurality of filler particles, wherein a thermal conductivity of the elastic porous layer in an axial direction of the pressing roller is in a range of 6 times to 900 times a thermal conductivity of the elastic porous layer in a radial direction of the pressing roller.

Abstract translation: 图像加热装置包括：环形带，被配置为在夹持部处加热片材上的图像;构造成使带发热的发热装置;构造成在辊隙形成部件和辊隙形成部件之间形成辊隙部的辊隙形成部件; 所述带和构造成将所述带的内表面压向所述辊隙形成构件的加压辊，所述加压辊包括含有多个填料颗粒的弹性多孔层，其中所述弹性多孔层在轴向上的导热率 的压力辊在挤压辊的径向方向上的弹性多孔层的导热率的6倍至900倍的范围内。

公开(公告)号：US20140348559A1

公开(公告)日：2014-11-27

申请号：US14283414

申请日：2014-05-21

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yasuhiro Miyahara

IPC: G03G15/20 ,  B32B37/00 ,  B32B37/12 ,  C08K3/38 ,  B05D7/22

CPC classification number: G03G15/2057 ,  B32B1/08 ,  B32B7/00 ,  B32B25/00 ,  B32B25/08 ,  B32B25/20 ,  B32B27/06 ,  B32B27/08 ,  B32B27/20 ,  B32B27/28 ,  B32B27/304 ,  B32B27/322 ,  B32B37/14 ,  B32B38/16 ,  B32B2037/243 ,  B32B2038/0072 ,  B32B2264/00 ,  B32B2307/30 ,  B32B2307/306 ,  B32B2307/51 ,  B32B2307/746 ,  B32B2311/18 ,  B32B2311/20 ,  B32B2311/24 ,  B32B2313/04 ,  B32B2413/00 ,  G03G15/2053 ,  G03G2215/2035

Abstract: A fixing belt includes an inner layer, serving as a sliding layer, in which filler particles having an aspect ratio of 5 or more are oriented substantially in the longitudinal direction of the fixing belt.

Abstract translation: 定影带包括用作滑动层的内层，其中纵横比为5以上的填料颗粒基本上沿着定影带的纵向取向。

公开(公告)号：US11573515B2

公开(公告)日：2023-02-07

申请号：US17717368

申请日：2022-04-11

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yasuhiro Miyahara ,  Matsutaka Maeda ,  Yuji Kitano ,  Makoto Souma ,  Yutaro Yoshida ,  Shigeo Kuroda

IPC: G03G15/20

Abstract: A fixing member for electrophotography having an endless shape has a base layer having an endless shape, and an elastic layer on the outer circumferential surface of the base layer. The elastic layer includes a silicone rubber and a filler dispersed in the silicone rubber. The total amount of the filler compounded in the elastic layer is 30 vol % or less based on the total volume of the elastic layer. The elastic layer satisfies the relation of λtd>λmd>λnd. λtd is a thermal conductivity of the elastic layer in the circumferential direction, λnd is a thermal conductivity of the elastic layer in the thickness direction, and λmd, is a thermal conductivity of the elastic layer in the longitudinal direction. λtd is 2.0 W/(m·K) or more, and λnd is 1.3 W/(m·K) or more.

公开(公告)号：US20230031844A1

公开(公告)日：2023-02-02

申请号：US17869642

申请日：2022-07-20

Applicant: CANON KABUSHIKI KAISHA

Inventor： Hiroto Sugimoto ,  Naoki Akiyama ,  Yasuhiro Miyahara ,  Noriaki Kobayashi ,  Hiroki Muramatsu ,  Akeshi Asaka

IPC: G03G15/20

Abstract: A fixing belt includes a base member containing a metal, a sliding layer containing a filler and formed on a base member inner side, and a separation layer formed on a base member outer side. Assume that (i) a sliding layer cross section is obtained by cutting the sliding layer along a sliding layer thickness direction and is divided into sections each having a length that is the same as a sliding layer thickness in a direction perpendicular to the thickness direction, and (ii) a ratio of a filler area to a sliding layer area in each cross section sections is an area ratio. A period coefficient is calculated using the formula (Ave% - Min%)/Ave%, where an average of area ratios of filler areas in all the sections is Ave% and a minimum of the area ratios is Min%, and the calculated period coefficient is 0.6 or more.