公开(公告)号：US20220334522A1

公开(公告)日：2022-10-20

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：US20200209793A1

公开(公告)日：2020-07-02

申请号：US16715080

申请日：2019-12-16

Applicant: CANON KABUSHIKI KAISHA

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

IPC: G03G15/20

Abstract: An image heating member for heating an image formed on a recording material includes a base material, an elastic layer which contains a thermally conductive filler of 5 μm or more in average diameter and which is provided on the base material, and a parting layer which is provided on the elastic layer so as to contact the elastic layer and which is formed of a fluorine-containing resin tube provided on the elastic layer. The fluorine-containing resin tube has 3% or more in heat contraction rate with respect to a widthwise direction of the image heating member before and after the fluorine-containing resin tube is heated and left standing in an oven at 200° C. for 30 minutes.

公开(公告)号：US20150355581A1

公开(公告)日：2015-12-10

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 ,  C08K3/04 ,  B05D3/02

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：US09176442B2

公开(公告)日：2015-11-03

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：US20150160596A1

公开(公告)日：2015-06-11

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 ,  F16C13/00

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：US20150118400A1

公开(公告)日：2015-04-30

申请号：US14515666

申请日：2014-10-16

Applicant: CANON KABUSHIKI KAISHA

Inventor： Katsuya Abe ,  Yasuhiro Miyahara ,  Yuji Hasegawa

IPC: B05D1/36 ,  B05D7/00 ,  B05D3/00 ,  B05D1/00 ,  B05D1/28 ,  B05D1/38

CPC classification number: B05D1/002 ,  B05D1/02 ,  B05D1/26 ,  B05D1/36 ,  B05D1/40 ,  B05D7/52 ,  B05D2254/02 ,  B05D2518/10 ,  G03G15/00 ,  G03G15/20 ,  G03G15/2053 ,  G03G15/2057 ,  G03G15/206 ,  G03G2215/00413

Abstract: The method for forming a coating film includes: supplying a first liquid from a nozzle to a cylindrical substrate to thereby form the coating film of the first liquid, wherein the method includes, pressing a member including a second liquid, to form a liquid film of the second liquid on the peripheral surface, and forming the coating film of the first liquid includes: supplying the first liquid onto the liquid film of the second liquid formed on the peripheral surface of the substrate to form a bead of the first liquid between the liquid-supplying unit and the liquid film of the second liquid, and extending the bead in a circumferential direction of the substrate.

Abstract translation: 形成涂膜的方法包括：将来自喷嘴的第一液体供给到圆筒形基板，从而形成第一液体的涂膜，其中所述方法包括：将包括第二液体的部件按压，形成液体膜 外周面上的第二液体和形成第一液体的涂膜的步骤包括：将第一液体供应到形成在基板周边表面上的第二液体的液膜上，以在液体之间形成第一液体的珠粒 供给单元和第二液体的液膜，并且沿着基板的圆周方向延伸珠。

公开(公告)号：US20140119789A1

公开(公告)日：2014-05-01

申请号：US14064335

申请日：2013-10-28

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yasuhiro Miyahara ,  Naoki Akiyama ,  Hiroto Sugimoto ,  Takeshi Suzuki ,  Yuji Hasegawa

IPC: G03G15/20 ,  B32B37/00

CPC classification number: G03G15/206 ,  G03G15/2057 ,  G03G2215/2022

Abstract: A fixing member includes an elastic layer and a toner parting layer. The elastic layer includes a laser-irradiated region formed by being irradiated at longitudinal end portions of the elastic layer with laser light except for at least one non-laser-irradiated region with respect to a circumferential direction of the elastic layer. The elastic layer is coated with the toner parting layer.

Abstract translation: 固定构件包括弹性层和调色剂分离层。 弹性层包括激光照射区域，该激光照射区域通过在除了弹性层的周向的至少一个非激光照射区域之外的激光下照射在弹性层的纵向端部处形成。 弹性层涂覆有调色剂分离层。

公开(公告)号：US20140105659A1

公开(公告)日：2014-04-17

申请号：US14044059

申请日：2013-10-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yasuhiro Miyahara

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G2215/2035

Abstract: A heating belt has a sliding layer on an inner surface of a base member, the sliding layer composed of a polyimide resin layer formed by mixing a first polyimide precursor and a second polyimide precursor whose loss elastic modulus is greater than that of the first polyimide precursor. A high wear resistance and a high stick-slip inhibition effect can be retained for the sliding layer because the first polyimide precursor and the second polyimide precursor are mixed.

Abstract translation: 加热带在基材的内表面上具有滑动层，该滑动层由通过混合第一聚酰亚胺前体和第二聚酰亚胺前体形成的聚酰亚胺树脂层构成，其损耗弹性模量大于第一聚酰亚胺前体 。 由于第一聚酰亚胺前体和第二聚酰亚胺前体混合，因此滑动层可以保持高的耐磨性和高的防滑性。

公开(公告)号：US11841630B2

公开(公告)日：2023-12-12

申请号：US18066426

申请日：2022-12-15

Applicant: CANON KABUSHIKI KAISHA

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

IPC: G03G15/20

CPC classification number: G03G15/2057

Abstract: A fixing member includes a substrate having an endless shape; and an elastic layer on an outer peripheral surface of the substrate, the elastic layer containing a silicone rubber and fillers dispersed in the silicone rubber, a content of the fillers with respect to the elastic layer being 35 vol % or more and 50 vol % or less. The fillers includes at least a first filler and a second filler. The first filler is at least one selected from the group consisting of: magnesium oxide; and zinc oxide. The second filler is at least one selected from the group consisting of metal silicon and silicon carbide. A proportion of a sum of the first filler and the second filler to a total amount of the fillers in the elastic layer is 90 vol % or more. Further, the average of 6 sets of representative coefficient A is 1.4 or more.

公开(公告)号：US20220075296A1

公开(公告)日：2022-03-10

申请号：US17462397

申请日：2021-08-31

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yuji Kitano ,  Takeshi Suzuki ,  Matsutaka Maeda ,  Makoto Souma ,  Yasuhiro Miyahara

IPC: G03G15/20

Abstract: Provided is an electrophotographic fixing member including an elastic layer having a low hardness while maintaining a high thermal conductivity and a high strength, the elastic layer being less liable to fracture even when repeatedly compressed in a high-temperature state. The fixing member for electrophotography includes a substrate, an elastic layer on the substrate, and a surface layer in the stated order, wherein the elastic layer contains a silicone rubber and a heat conductive filler dispersed in the silicone rubber, wherein the heat conductive filler is metal oxide particles, or metal particles each having a surface at least part of which is formed of a metal oxide, and wherein the elastic layer further contains a charge control agent negatively chargeable with respect to the heat conductive filler.