公开(公告)号：US12072653B2

公开(公告)日：2024-08-27

申请号：US17828301

申请日：2022-05-31

Applicant: CANON KABUSHIKI KAISHA

Inventor： Akeshi Asaka ,  Yuma Kobayashi ,  Taiki Watanabe

IPC: G03G15/20 ,  B32B27/28 ,  C08L79/08 ,  C09D5/24 ,  C09D7/62 ,  C09D179/08

CPC classification number: G03G15/2057 ,  B32B27/281 ,  C08L79/08 ,  C09D5/24 ,  C09D7/62 ,  C09D179/08 ,  B32B2307/302 ,  B32B2433/00 ,  C08L79/08 ,  C08K3/041 ,  C08L81/06 ,  C08K9/08 ,  C08L79/08

Abstract: Provided is an electrophotographic belt having an endless shape including a base layer, wherein the base layer includes a polyimide film containing polyimide serving as a binder resin and a carbon nanotube, wherein the polyimide has an imidization ratio of 80% or more, wherein the carbon nanotube has at least one resin selected from the group consisting of: polyphenylsulfone; polysulfone; and polyethersulfone present on at least part of a surface thereof. The base layer has a tensile strength of 200 MPa or more in each of a peripheral direction thereof and a direction perpendicular to the peripheral direction.

公开(公告)号：US20220342353A1

公开(公告)日：2022-10-27

申请号：US17725238

申请日：2022-04-20

Applicant: CANON KABUSHIKI KAISHA

Inventor： Noriaki Kobayashi ,  Akeshi Asaka

IPC: G03G15/20 ,  C09C1/40 ,  C09D5/44

Abstract: A fixing belt includes: a base having an endless shape; and a resin layer covering a surface on an inner peripheral side of the base, the resin layer comprising a resin and a filler, and having a second surface opposite to a first surface facing the base, the second surface having cell structures, and being roughened with the filler. When arithmetic mean roughnesses of the second surface in the central region X and the end regions Y and Z are defined as RaX, RaY and RaZ respectively, a difference between RaX and RaY, a difference between RaY and RaZ, and a difference between RaX and RaZ are all 0.1 μm or smaller, and a coefficient of variation of areas of the cell structures contained in each of the central region X, and end regions Y and Z is 25% or smaller.

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：US10534297B2

公开(公告)日：2020-01-14

申请号：US16426498

申请日：2019-05-30

Applicant: CANON KABUSHIKI KAISHA

Inventor： Jun Miura ,  Yutaka Arai ,  Takeshi Suzuki ,  Akeshi Asaka ,  Shigeaki Takada ,  Masaaki Takahashi ,  Yo Imaizumi

IPC: G03G15/20 ,  B05D1/30

Abstract: Provided is an electrophotographic rotatable pressing member having further durability. The electrophotographic rotatable pressing member includes: a substrate; and an elastic layer formed on the substrate, the elastic layer containing a silicone rubber and a needle-shaped filler dispersed in the silicone rubber and having hollow parts, wherein, when cutting the elastic layer along a cross section including a center axis of the substrate in a longitudinal direction of the electrophotographic rotatable pressing member, and a total of each sectional area of the hollow parts in a unit area A2 of a cross-sectional surface is defined as A1, a standard deviation of an area ratio A1/A2 is 0.08 or less.

公开(公告)号：US09785102B2

公开(公告)日：2017-10-10

申请号：US14144742

申请日：2013-12-31

Applicant: CANON KABUSHIKI KAISHA

Inventor： Masahito Omata ,  Shoji Umehara ,  Shuichi Tetsuno ,  Akeshi Asaka ,  Masayuki Onuma ,  Yusuke Baba ,  Kazuo Kishino

IPC: B32B9/04 ,  G03G15/20

CPC classification number: G03G15/2089 ,  G03G15/2053 ,  G03G15/206 ,  G03G2215/2035 ,  G03G2215/2048

Abstract: A rotatable fixing member includes an elastic layer, a primer layer provided on the elastic layer, and a parting layer provided on the primer layer. The primer layer contains a crystalline fluorocarbon polymer having a functional group and has a thickness of 850 nm or less. The parting layer is a coating layer of a crystalline fluorocarbon polymer.

公开(公告)号：US09513592B2

公开(公告)日：2016-12-06

申请号：US14844249

申请日：2015-09-03

Applicant: CANON KABUSHIKI KAISHA

Inventor： Naoki Akiyama ,  Toshinori Nakayama ,  Masayuki Tamaki ,  Shigeaki Takada ,  Akeshi Asaka ,  Koichi Kakubari

IPC: G03G15/20 ,  G03G15/00 ,  H05B1/02 ,  H05B3/24 ,  H01C17/06 ,  H01C17/28

CPC classification number: G03G15/80 ,  G03G15/2042 ,  G03G15/2053 ,  G03G2215/2035 ,  H01C17/06 ,  H01C17/28 ,  H05B1/0241 ,  H05B3/24

Abstract: A heater includes a substrate, a first electrical contact, a plurality of second electrical contacts, a plurality of electrode portions including first electrode portions electrically connected with the first electrical contact and second electrode portions electrically connected with the second electrical contacts, the first electrode portions and the second electrode portions being arranged alternately with predetermined gaps in a longitudinal direction of the substrate, and a plurality of heat generating portions provided between adjacent ones of the electrode portions so as to electrically connect between adjacent electrode portion. The heat generating portions are capable of generating heat by the electric power supply between adjacent electrode portions. A part of the second electrical contacts is selectably electrically connectable with the second terminal. The electrode portions are covered with the heat generating portions so as to be positioned between the substrate and the heat generating portions.

Abstract translation: 加热器包括基板，第一电触点，多个第二电触头，多个电极部分，包括与第一电触点电连接的第一电极部分和与第二电触头电连接的第二电极部分，第一电极部分 并且所述第二电极部分在所述基板的纵向方向上交替地布置有预定的间隙，以及多个发热部分，设置在相邻的所述电极部分之间，以便在相邻的电极部分之间电连接。 发热部能够通过相邻的电极部之间的电力供给而发热。 第二电触点的一部分可选择地与第二端子电连接。 电极部分被发热部分覆盖，以便位于基板和发热部分之间。

公开(公告)号：US20160202649A1

公开(公告)日：2016-07-14

申请号：US14993488

申请日：2016-01-12

Applicant: CANON KABUSHIKI KAISHA

Inventor： Akeshi Asaka ,  Toshinori Nakayama ,  Shigeaki Takada ,  Masayuki Tamaki ,  Naoki Akiyama ,  Koichi Kakubari

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2042 ,  G03G15/80

Abstract: A heater includes a substrate, a first electrical contact, second electrical contacts, first electrode portions and second electrode portions, heat generating portions, a first electroconductive line portion, and a second electroconductive line portion. The heat generating portions are disposed so as to be offset from a center line of the substrate with respect to a widthwise direction of the substrate.

Abstract translation: 加热器包括基板，第一电触点，第二电触点，第一电极部分和第二电极部分，发热部分，第一导电线部分和第二导电线部分。 发热部分相对于基板的宽度方向设置成偏离基板的中心线。

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：US20160026124A1

公开(公告)日：2016-01-28

申请号：US14799056

申请日：2015-07-14

Applicant: CANON KABUSHIKI KAISHA

Inventor： Masayuki Tamaki ,  Toshinori Nakayama ,  Shigeaki Takada ,  Naoki Akiyama ,  Akeshi Asaka ,  Koichi Kakubari

IPC: H05B3/00 ,  G03G15/20

CPC classification number: G03G15/2017 ,  G03G15/2042 ,  G03G15/2053 ,  G03G2215/2035 ,  H05B1/0241 ,  H05B3/22

Abstract: A heater includes a substrate; a first electrical contact a plurality of second electrical contacts an electroconductive line portion electrically connected with the first electrical contact; a plurality of electrode portions including first electrode portions electrically connected with the first electrical contact through the electroconductive line portion and second electrode portions electrically connected with the second electrical contacts; and a plurality of heat generating portions provided between adjacent ones of the electrode portions. A cross-section of the electroconductive line portion in a side closer to the first electrical contact than the plurality of heat generating portions are with respect to the longitudinal direction is larger than a cross-section of a predetermined electrode portion, between adjacent heat generating portions, of the plurality of electrode portions.

Abstract translation: 加热器包括基板; 第一电接触件，多个第二电触点，与所述第一电触头电连接的导电线部分; 多个电极部分，包括通过导电线部分与第一电触头电连接的第一电极部分和与第二电触点电连接的第二电极部分; 以及设置在相邻的电极部之间的多个发热部。 导电线部分的比多个发热部分更靠近第一电接触的一侧的横截面相对于纵向方向的横截面大于相邻的发热部分之间的预定电极部分的横截面 ，多个电极部分。

公开(公告)号：US11556082B2

公开(公告)日：2023-01-17

申请号：US16507220

申请日：2019-07-10

Applicant: CANON KABUSHIKI KAISHA

Inventor： Ryosuke Tsuruga ,  Toshiyuki Yoshida ,  Jun Ohira ,  Akeshi Asaka ,  Hiroto Sugimoto ,  Takanori Ueno ,  Koji Sato ,  Midai Suzuki ,  Atsushi Hori ,  Kaoru Okamoto ,  Megumi Uchino ,  Kazuhisa Shirayama ,  Naoto Kameyama ,  Kiyonori Soutome ,  Shigeo Kuroda ,  Akira Okano ,  Hiroshi Tominaga

IPC: G03G15/16 ,  B29B7/90 ,  B29D23/00 ,  B29K507/04 ,  B29K101/12

Abstract: An intermediary transfer belt having surface resistivity ρs of 1×109 Ω/square or more and volume resistivity ρv of 1×1012 Ω·cm or less includes a thermoplastic resin material containing carbon black. The carbon black contained in the thermoplastic resin material has a weight ratio of 22.5-28.5 weight % and include first carbon black and second carbon black. The first carbon black of the carbon black contained in the thermoplastic resin material has a weight ratio of 50-90 weight % and dibutyl phthalate absorption of 93-127 ml/100 g, and the second carbon black of the carbon black contained in the thermoplastic resin material has a weight ratio of 10-50 weight % and dibutyl phthalate absorption of 36-79 ml/100 g.