公开(公告)号：US11981141B2

公开(公告)日：2024-05-14

申请号：US17753267

申请日：2020-09-15

Applicant: Ichiroh Fujii ,  Takumi Atake ,  Yohta Sakon ,  Akira Izutani ,  Hiroko Ohkura

Inventor： Ichiroh Fujii ,  Takumi Atake ,  Yohta Sakon ,  Akira Izutani ,  Hiroko Ohkura

IPC: B41J2/165

CPC classification number: B41J2/16544 ,  B41J2/16552 ,  B41J2002/16558

Abstract: A wiping method for wiping a nozzle surface of a liquid discharge head includes the step of relatively moving the liquid discharge head and a wiper impregnated with a cleaning fluid. The cleaning fluid contains a lactone compound in an amount of 5% by mass or more. The wiper includes a first layer configured to contact the nozzle surface and one or more layers other than the first layer. The first layer has a thickness of t1, the one or more layers other than the first layer have a total thickness of t2, and t1 is smaller than t2. A void ratio of the first layer is smaller than a void ratio of at least one of the one or more layers other than the first layer.

公开(公告)号：US20230001696A1

公开(公告)日：2023-01-05

申请号：US17753267

申请日：2020-09-15

Applicant: Ichiroh FUJII ,  Takumi ATAKE ,  Yohta SAKON ,  Akira IZUTANI ,  Hiroko OHKURA

Inventor： Ichiroh FUJII ,  Takumi ATAKE ,  Yohta SAKON ,  Akira IZUTANI ,  Hiroko OHKURA

IPC: B41J2/165

Abstract: A wiping method for wiping a nozzle surface of a liquid discharge head includes the step of relatively moving the liquid discharge head and a wiper impregnated with a cleaning fluid. The cleaning fluid contains a lactone compound in an amount of 5% by mass or more. The wiper includes a first layer configured to contact the nozzle surface and one or more layers other than the first layer. The first layer has a thickness of t1, the one or more layers other than the first layer have a total thickness of t2, and t1 is smaller than t2. A void ratio of the first layer is smaller than a void ratio of at least one of the one or more layers other than the first layer.

公开(公告)号：US10191439B2

公开(公告)日：2019-01-29

申请号：US15886940

申请日：2018-02-02

Applicant: Keiichiro Juri ,  Masanobu Gondoh ,  Yohta Sakon ,  Masahiro Ohmori ,  Yuuki Mizutani ,  Yuka Aoyama

Inventor： Keiichiro Juri ,  Masanobu Gondoh ,  Yohta Sakon ,  Masahiro Ohmori ,  Yuuki Mizutani ,  Yuka Aoyama

IPC: G03G21/00 ,  G03G21/18 ,  G03G21/16

Abstract: A cleaning blade includes a support and an elastic member with a flat shape. The elastic member has a secured end secured to the support and a free end. A ridgeline of the free end contacts a cleaning target to remove substances adhering to a surface of the cleaning target. The elastic member includes a base and a surface layer made of a cured product of a curable composition. The surface layer is disposed on at least a part of an opposite face disposed to oppose a downstream side of the cleaning target downstream from a contact portion of the elastic member with the cleaning target in a direction of movement of the cleaning target. A thickness of the surface layer progressively decreases toward the secured end along a cross section perpendicular to a longitudinal direction of the surface layer.

公开(公告)号：US20180239297A1

公开(公告)日：2018-08-23

申请号：US15886940

申请日：2018-02-02

Applicant: Keiichiro JURI ,  Masanobu GONDOH ,  Yohta SAKON ,  Masahiro OHMORI ,  Yuuki MIZUTANI ,  Yuka AOYAMA

Inventor： Keiichiro JURI ,  Masanobu GONDOH ,  Yohta SAKON ,  Masahiro OHMORI ,  Yuuki MIZUTANI ,  Yuka AOYAMA

IPC: G03G21/00

CPC classification number: G03G21/0011 ,  G03G21/0017 ,  G03G21/1676 ,  G03G21/181 ,  G03G21/1814 ,  G03G21/1821 ,  G03G21/1842

Abstract: A cleaning blade includes a support and an elastic member with a flat shape. The elastic member has a secured end secured to the support and a free end. A ridgeline of the free end contacts a cleaning target to remove substances adhering to a surface of the cleaning target. The elastic member includes a base and a surface layer made of a cured product of a curable composition. The surface layer is disposed on at least a part of an opposite face disposed to oppose a downstream side of the cleaning target downstream from a contact portion of the elastic member with the cleaning target in a direction of movement of the cleaning target. A thickness of the surface layer progressively decreases toward the secured end along a cross section perpendicular to a longitudinal direction of the surface layer.

公开(公告)号：US09851682B2

公开(公告)日：2017-12-26

申请号：US15183982

申请日：2016-06-16

Applicant: Yuka Aoyama ,  Masanobu Gondoh ,  Yohta Sakon ,  Masahiro Ohmori ,  Shohei Gohda ,  Kaori Toyama ,  Yuta Nakamura ,  Keiichiro Juri

Inventor： Yuka Aoyama ,  Masanobu Gondoh ,  Yohta Sakon ,  Masahiro Ohmori ,  Shohei Gohda ,  Kaori Toyama ,  Yuta Nakamura ,  Keiichiro Juri

IPC: G03G21/00 ,  G03G21/18

CPC classification number: G03G21/0017 ,  G03G21/0011 ,  G03G21/18 ,  G03G2221/0005

Abstract: A cleaning blade includes an elastic member including a contact portion to contact the surface of a member to be cleaned and remove an extraneous matter adhering to the surface of the member. The contact portion includes a modified portion including at least one of an impregnated portion including a first cured material formed of a first curing composition in a thickness direction from the surface of the contact portion; and a surface layer formed of a second curing composition on the surface of the contact portion. The surface of the modified portion has a tack maximum value not greater than 3.0 [gf/mm2].

公开(公告)号：US09746817B2

公开(公告)日：2017-08-29

申请号：US14538027

申请日：2014-11-11

Applicant: Shohei Gohda ,  Shinji Nohsho ,  Masanobu Gondoh ,  Kaori Toyama ,  Yohta Sakon ,  Masahiro Ohmori

Inventor： Shohei Gohda ,  Shinji Nohsho ,  Masanobu Gondoh ,  Kaori Toyama ,  Yohta Sakon ,  Masahiro Ohmori

IPC: G03G15/00 ,  G03G21/00 ,  G03G15/16

CPC classification number: G03G21/0017 ,  G03G15/162

Abstract: Provided is a cleaning blade including an elastic member configured to abut on a surface of a cleaning target member and remove residual material deposited thereon, wherein elastic member satisfies requirements a to c below, a. an abutment part of the elastic member to abut on the surface of the cleaning target member has a reformed layer, b. Martens hardness at a surface of the reformed layer is from 1.5 to 15 N/mm2, and c. a relationship H/L between maximum Martens hardness H among Martens hardnesses H in a region inward from the abutment part thicknesswise and distance L from the surface of the reformed layer is from 0.010 to 0.2 (N/mm2·1/μm), where distance L represents minimum distance among distances to the surface of the reformed layer, from positions at which a measured Martens hardness and a measured elastic power are equal to those of the elastic member.

公开(公告)号：US20170003643A1

公开(公告)日：2017-01-05

申请号：US15183982

申请日：2016-06-16

Applicant: Yuka AOYAMA ,  Masanobu Gondoh ,  Yohta Sakon ,  Masahiro Ohmori ,  Shohei Gohda ,  Kaori Toyama ,  Yuta Nakamura ,  Keiichiro Juri

Inventor： Yuka AOYAMA ,  Masanobu Gondoh ,  Yohta Sakon ,  Masahiro Ohmori ,  Shohei Gohda ,  Kaori Toyama ,  Yuta Nakamura ,  Keiichiro Juri

IPC: G03G21/00

CPC classification number: G03G21/0017 ,  G03G21/0011 ,  G03G21/18 ,  G03G2221/0005

Abstract: A cleaning blade'includes an elastic member including a contact portion to contact the surface of a member to be cleaned and remove an extraneous matter adhering to the surface of the member. The contact portion includes a modified portion including at least one of an impregnated portion including a first cured material formed of a first curing composition in a thickness direction from the surface of the contact portion; and a surface layer formed of a second curing composition on the surface of the contact portion. The surface of the modified portion has a tack maximum value not greater than 3.0 [gf/mm2],

Abstract translation: 清洁刮板包括弹性构件，其包括接触部分以接触要清洁的构件的表面，并且去除附着在构件表面上的外来物质。 接触部分包括改性部分，其包括浸渍部分中的至少一个，该浸渍部分包括从接触部分的表面在厚度方向上由第一固化组合物形成的第一固化材料; 以及在接触部分的表面上由第二固化组合物形成的表面层。 改性部分的表面具有不大于3.0 [gf / mm2]的粘性最大值，

公开(公告)号：US20160274527A1

公开(公告)日：2016-09-22

申请号：US15074333

申请日：2016-03-18

Applicant: Shohei GOHDA ,  Masanobu GONDOH ,  Kaori TOYAMA ,  Yohta SAKON ,  Masahiro OHMORI ,  Yuka AOYAMA ,  Yuta NAKAMURA ,  Yoshihiro MORIYA ,  Satoshi KOJIMA

Inventor： Shohei GOHDA ,  Masanobu GONDOH ,  Kaori TOYAMA ,  Yohta SAKON ,  Masahiro OHMORI ,  Yuka AOYAMA ,  Yuta NAKAMURA ,  Yoshihiro MORIYA ,  Satoshi KOJIMA

IPC: G03G21/00

CPC classification number: G03G21/0017 ,  G03G9/00 ,  G03G9/0819 ,  G03G9/08782

Abstract: An image forming apparatus is provided which includes an image bearer, a charger to charge the image bearer, a latent image forming device to form an electrostatic latent image on the image bearer, a developing device to develop the electrostatic latent image with a toner, a transfer device to transfer the toner image onto a transfer medium, and a cleaning blade to remove residual toner particles remaining on the image bearer. The toner includes a binder resin and a release agent. The release agent has a longest length Lmax in the toner, which is equal to or greater than 1.1 times a maximum Feret diameter Df of the toner. The cleaning blade includes a strip-like elastic body blade having a contact part with the image bearer. The contact part includes a cured product of an ultraviolet curable composition including an acrylate or methacrylate compound having an alicyclic structure.

Abstract translation: 提供一种图像形成装置，其包括图像载体，对图像载体进行充电的充电器，在图像载体上形成静电潜像的潜像形成装置，用调色剂显影静电潜像的显影装置， 转印装置将调色剂图像转印到转印介质上，以及清洁刮板以除去留在图像承载体上的剩余调色剂颗粒。 调色剂包括粘合剂树脂和脱模剂。 脱模剂在调色剂中具有最长的长度Lmax，其等于或大于调色剂的最大Feret直径Df的1.1倍。 清洁刮板包括具有与图像承载体的接触部分的条状弹性体刀片。 接触部分包括具有脂环结构的丙烯酸酯或甲基丙烯酸酯化合物的紫外线固化性组合物的固化物。

公开(公告)号：US09383713B2

公开(公告)日：2016-07-05

申请号：US14808043

申请日：2015-07-24

Applicant: Yohta Sakon ,  Masahiro Ohmori ,  Hiromi Sakaguchi ,  Yuka Aoyama ,  Masanobu Gondoh ,  Shohei Gohda ,  Kaori Toyama ,  Shinji Nohsho

Inventor： Yohta Sakon ,  Masahiro Ohmori ,  Hiromi Sakaguchi ,  Yuka Aoyama ,  Masanobu Gondoh ,  Shohei Gohda ,  Kaori Toyama ,  Shinji Nohsho

IPC: G03G21/00

CPC classification number: G03G21/0017

Abstract: A cleaning blade, including: rectangular elastic body blade containing cured first-UV-curable resin at tip ridgeline portion thereof, brought into contact with surface of to-be-cleaned member, the cured first-UV-curable resin being formed by impregnating the tip ridgeline portion with the first-UV-curable resin, followed by curing, and depth of the elastic body blade impregnated with the first-UV-curable resin from edge surface thereof is 50 μm-150 μm, wherein the elastic body blade contains surface layer containing cured second-UV-curable resin at the edge surface, wherein load-displacement curve of Martens hardness thereof has inflection points, and is obtained by pressing region of the surface layer thereof via resin particles having average particle diameter of 5 μm-10 μm, and distance of the region from the tip ridgeline portion is 0.5 mm or less, and wherein ratio of displacement at the inflection point, with which load is maximum, to the average particle diameter is 1.5-2.0.

Abstract translation: 一种清洁刮板，其特征在于，包括：在顶端棱线部分含有固化的第一UV固化树脂的矩形弹性体刀片，与待清洁部件的表面接触，固化的第一UV固化树脂通过浸渍 第一紫外线固化树脂的尖端棱线部分，然后固化，并且从其边缘表面浸渍有第一UV可固化树脂的弹性体片的深度为50μm-150μm，其中弹性体刀片包含表面 在其边缘表面含有固化的第二紫外线可固化树脂的层，其中马氏体硬度的载荷 - 位移曲线具有拐点，并且通过将表面层的表面层的区域压制成具有平均粒径为5μm-10的树脂颗粒 μm，距顶尖棱线部的距离为0.5mm以下，负荷最大的拐点的位移与平均粒径的比为1.5〜2.0。

公开(公告)号：US09244424B1

公开(公告)日：2016-01-26

申请号：US14742193

申请日：2015-06-17

Applicant: Hiromi Sakaguchi ,  Shinji Nohsho ,  Yohta Sakon ,  Masahiro Ohmori ,  Yuka Aoyama ,  Masanobu Gondoh ,  Shohei Gohda ,  Kaori Toyama

Inventor： Hiromi Sakaguchi ,  Shinji Nohsho ,  Yohta Sakon ,  Masahiro Ohmori ,  Yuka Aoyama ,  Masanobu Gondoh ,  Shohei Gohda ,  Kaori Toyama

IPC: G03G21/00

CPC classification number: G03G21/0017

Abstract: A cleaning blade cleaning the surface of an object includes a rigid holder; and a strip-shaped elastic body fixed on the holder, including a tip ridgeline to contact the surface of the object. The cleaning blade includes a part having a Martens hardness of from 0.9 to 5.0 N/mm2 at a depth of 20 μm from an undersurface of the blade including the ridgeline, 0.3 to 0.8 N/mm2 at a depth of 40 μm therefrom, and the Martens hardness at a depth of 20 μm therefrom larger than that at a depth of 40 μm therefrom by 0.6 N/mm2.

Abstract translation: 清洁物体表面的清洁刀片包括刚性保持器; 以及固定在所述保持器上的带状弹性体，其包括与所述物体的表面接触的尖端棱线。 清洁刮板包括从包括棱线的叶片的下表面开始的深度为20μm至20μm的马氏体硬度为0.9至5.0N / mm 2的部分，其深度为40μm时为0.3至0.8N / mm 2， 其深度为20μm的马氏体硬度比其深度为40μm的马氏硬度大0.6N / mm 2。