公开(公告)号：US08865380B2

公开(公告)日：2014-10-21

申请号：US13007439

申请日：2011-01-14

申请人： Kazunori Noguchi ,  Harunobu Ogaki ,  Shio Murai ,  Atsushi Ochi ,  Koji Takahashi

发明人： Kazunori Noguchi ,  Harunobu Ogaki ,  Shio Murai ,  Atsushi Ochi ,  Koji Takahashi

IPC分类号： G03G5/04 ,  G03G15/00 ,  G03G5/05 ,  G03G5/06

CPC分类号： G03G5/056 ,  G03G5/0564 ,  G03G5/0578 ,  G03G5/0614 ,  G03G15/75

摘要： A charge transport layer, which is the surface layer of an electrophotographic photosensitive member, contains a charge transporting material, and a polyester resin A having a repeating structural unit including a specific siloxane moiety and at least one of a polyester resin C having a specific structure and a polycarbonate resin D having a specific structure as a binder resin. The content of the siloxane moiety in the polyester resin A is from 5% by mass or more to 30% by mass or less based on the total mass of the polyester resin A. The charge transport layer includes a domain made of the polyester resin A in a matrix made of the charge transporting material and at least one of the polyester resin C and the polycarbonate resin D.

摘要翻译： 作为电子照相感光构件的表面层的电荷输送层含有电荷输送材料和具有特定硅氧烷部分的重复结构单元的聚酯树脂A和具有特定结构的聚酯树脂C中的至少一种 和具有特定结构的聚碳酸酯树脂D作为粘合剂树脂。 聚酯树脂A中的硅氧烷部分的含量相对于聚酯树脂A的总质量为5质量％以上30质量％以下。电荷输送层包含由聚酯树脂A 在由电荷输送材料和聚酯树脂C和聚碳酸酯树脂D中的至少一种制成的基体中。

公开(公告)号：US20110177438A1

公开(公告)日：2011-07-21

申请号：US13007439

申请日：2011-01-14

申请人： Kazunori Noguchi ,  Harunobu Ogaki ,  Shio Murai ,  Atsushi Ochi ,  Koji Takahashi

发明人： Kazunori Noguchi ,  Harunobu Ogaki ,  Shio Murai ,  Atsushi Ochi ,  Koji Takahashi

IPC分类号： G03G5/04 ,  G03G21/18 ,  G03G15/00

CPC分类号： G03G5/056 ,  G03G5/0564 ,  G03G5/0578 ,  G03G5/0614 ,  G03G15/75

摘要： A charge transport layer, which is the surface layer of an electrophotographic photosensitive member, contains a charge transporting material, and a polyester resin A having a repeating structural unit including a specific siloxane moiety and at least one of a polyester resin C having a specific structure and a polycarbonate resin D having a specific structure as a binder resin. The content of the siloxane moiety in the polyester resin A is from 5% by mass or more to 30% by mass or less based on the total mass of the polyester resin A. The charge transport layer includes a domain made of the polyester resin A in a matrix made of the charge transporting material and at least one of the polyester resin C and the polycarbonate resin D.

摘要翻译： 作为电子照相感光构件的表面层的电荷输送层含有电荷输送材料和具有特定硅氧烷部分的重复结构单元的聚酯树脂A和具有特定结构的聚酯树脂C中的至少一种 和具有特定结构的聚碳酸酯树脂D作为粘合剂树脂。 聚酯树脂A中的硅氧烷部分的含量相对于聚酯树脂A的总质量为5质量％以上30质量％以下。电荷输送层包含由聚酯树脂A 在由电荷输送材料和聚酯树脂C和聚碳酸酯树脂D中的至少一种制成的基体中。

公开(公告)号：US20120099898A1

公开(公告)日：2012-04-26

申请号：US13382154

申请日：2010-08-27

申请人： Atsushi Ochi ,  Harunobu Ogaki ,  Hiroki Uematsu ,  Yasuhiro Kawai ,  Koji Takahashi ,  Shio Murai

发明人： Atsushi Ochi ,  Harunobu Ogaki ,  Hiroki Uematsu ,  Yasuhiro Kawai ,  Koji Takahashi ,  Shio Murai

IPC分类号： G03G15/00

CPC分类号： G03G15/751 ,  G03G5/04 ,  G03G5/043 ,  G03G5/0542 ,  G03G5/0564 ,  G03G5/0614 ,  G03G5/0696 ,  G03G5/147 ,  G03G5/14756

摘要： An electrophotographic apparatus is provided including an electrophotographic photosensitive member which includes a surface protective layer; and an exposure device which irradiates a surface of the electrophotographic photosensitive member with an exposure beam so as to form an electrostatic latent image on the surface of the electrophotographic photosensitive member, wherein the surface protective layer includes a material having no structure to provide charge transporting performance and has a plurality of through holes penetrating from the side of the front surface of the surface protective layer to the side of the charge transport layer, and the thickness of the surface protective layer is from 0.1 μm or more to 1.5 μm or less, and wherein when the surface of the electrophotographic photosensitive member is irradiated with the exposure beam, two or more of the through holes are included in an exposure beam spot.

摘要翻译： 提供了包括电子照相感光构件的电子照相设备，其包括表面保护层; 以及曝光装置，其用曝光用光束照射电子照相感光构件的表面，以在电子照相感光构件的表面上形成静电潜像，其中表面保护层包括不具有提供电荷传输性能的材料 并且具有从表面保护层的前表面侧向电荷输送层侧穿透的多个贯通孔，表面保护层的厚度为0.1μm以上且1.5μm以下， 其中当电子照相感光构件的表面被曝光束照射时，两个或更多个通孔被包括在曝光光斑中。

公开(公告)号：US08843024B2

公开(公告)日：2014-09-23

申请号：US12959238

申请日：2010-12-02

申请人： Hiroki Uematsu ,  Harunobu Ogaki ,  Atsushi Ochi ,  Yasuhiro Kawai ,  Koji Takahashi ,  Shio Murai

发明人： Hiroki Uematsu ,  Harunobu Ogaki ,  Atsushi Ochi ,  Yasuhiro Kawai ,  Koji Takahashi ,  Shio Murai

IPC分类号： G03G21/16 ,  G03G15/00 ,  G03G5/043 ,  G03G5/10 ,  G03G5/147

CPC分类号： G03G5/043 ,  G03G5/04 ,  G03G5/0525 ,  G03G5/10 ,  G03G5/147

摘要： An electrophotographic photosensitive member having excellent cleaning performance, a process cartridge, and an electrophotographic apparatus.The peripheral surface of the member has flat portions having a width e (μm) satisfying 0.1≦e≦25 and a plurality of groove portions having a width w (μm) satisfying 0.1≦w≦25 and a depth d (μm) satisfying 0.1≦d≦3.0, the flat and groove portions at an angle θ (°) satisfying 80≦θ≦100 with respect to the axial direction of the member. The sum esum (μm) of the widths e of the flat portions per each width of 100 μm in the axial direction of the peripheral surface satisfying 5≦esum≦75, and eσ/eAv satisfying eσ/eAv≦0.46, where eAv (μm) is the average value of the widths e of the flat portions, and eσ is the standard deviation thereof.

摘要翻译： 具有优异清洁性能的电子照相感光构件，处理盒和电子照相设备。 构件的周面具有宽度为e（μm）的平坦部分，其宽度e（μm）满足0.1＆nlE; e＆nlE; 25以及宽度w（μm）满足0.1＆nlE; w＆nlE; 25和深度d（μm） 满足0.1＆nlE; d＆nlE; 3.0，平坦和凹槽部分以角度＆amp; （°）相对于构件的轴向方向满足80＆lt; nlE;＆amp; thetas;＆nlE; 100。 平均部分的宽度e的总和（μm）为满足e＆sgr / eAv＆nlE; 0.46，其中eAv（eAv）/ eAv＆nlE为0.46，外周表面的轴向方向上每个宽度为100μm的宽度e满足5＆ （μm）是平坦部分的宽度e的平均值，e＆sgr; 是其标准偏差。

公开(公告)号：US08457528B2

公开(公告)日：2013-06-04

申请号：US13382154

申请日：2010-08-27

申请人： Atsushi Ochi ,  Harunobu Ogaki ,  Hiroki Uematsu ,  Yasuhiro Kawai ,  Koji Takahashi ,  Shio Murai

发明人： Atsushi Ochi ,  Harunobu Ogaki ,  Hiroki Uematsu ,  Yasuhiro Kawai ,  Koji Takahashi ,  Shio Murai

IPC分类号： G03G15/045

CPC分类号： G03G15/751 ,  G03G5/04 ,  G03G5/043 ,  G03G5/0542 ,  G03G5/0564 ,  G03G5/0614 ,  G03G5/0696 ,  G03G5/147 ,  G03G5/14756

摘要： An electrophotographic apparatus is provided including an electrophotographic photosensitive member which includes a surface protective layer; and an exposure device which irradiates a surface of the electrophotographic photosensitive member with an exposure beam so as to form an electrostatic latent image on the surface of the electrophotographic photosensitive member, wherein the surface protective layer includes a material having no structure to provide charge transporting performance and has a plurality of through holes penetrating from the side of the front surface of the surface protective layer to the side of the charge transport layer, and the thickness of the surface protective layer is from 0.1 μm or more to 1.5 μm or less, and wherein when the surface of the electrophotographic photosensitive member is irradiated with the exposure beam, two or more of the through holes are included in an exposure beam spot.

摘要翻译： 提供了包括电子照相感光构件的电子照相设备，其包括表面保护层; 以及曝光装置，其用曝光用光束照射电子照相感光构件的表面，以在电子照相感光构件的表面上形成静电潜像，其中表面保护层包括不具有提供电荷传输性能的材料 并且具有从表面保护层的前表面侧向电荷输送层侧穿透的多个通孔，表面保护层的厚度为0.1μm以上至1.5μm以下， 其中当电子照相感光构件的表面被曝光束照射时，两个或更多个通孔被包括在曝光光斑中。

公开(公告)号：US20110135340A1

公开(公告)日：2011-06-09

申请号：US12959238

申请日：2010-12-02

申请人： Hiroki Uematsu ,  Harunobu Ogaki ,  Atsushi Ochi ,  Yasuhiro Kawai ,  Koji Takahashi ,  Shio Murai

发明人： Hiroki Uematsu ,  Harunobu Ogaki ,  Atsushi Ochi ,  Yasuhiro Kawai ,  Koji Takahashi ,  Shio Murai

IPC分类号： G03G21/16 ,  G03G15/00

CPC分类号： G03G5/043 ,  G03G5/04 ,  G03G5/0525 ,  G03G5/10 ,  G03G5/147

摘要： Provided is an electrophotographic photosensitive member having excellent cleaning performance, and a process cartridge and an electrophotographic apparatus, each including the electrophotographic photosensitive member.The peripheral surface of the electrophotographic photosensitive member has a plurality of flat portions having a width e (μm) that satisfies the relationship 0.1≦e≦25 and a plurality of groove portions having a width w (μm) that satisfies the relationship 0.1≦w≦25 and a depth d (μm) that satisfies the relationship 0.1≦d≦3.0, the flat portions and the groove portions being alternately formed at an angle θ (°) that satisfies the relationship 80≦θ≦100 with respect to the axial direction of the electrophotographic photosensitive member. The sum esum (μm) of the widths e of the flat portions per each width of 100 μm in the axial direction of the peripheral surface satisfies the relationship 5≦esum≦75, and eσ/eAv satisfies the relationship eσ/eAv≦0.46, where eAv (μm) is the average value of the widths e of the flat portions, and eσ is the standard deviation thereof.

摘要翻译： 提供了具有优异的清洁性能的电子照相感光构件，以及各自包括电子照相感光构件的处理盒和电子照相设备。 电子照相感光构件的周面具有多个宽度e（μm）的平坦部分，其宽度e（μm）满足关系式0.1＆nlE; e＆nlE; 25以及宽度w（μm）的多个沟槽部分，满足关系式0.1＆ ; w＆nlE; 25和深度d（μm），其满足关系式0.1＆nlE; d＆nlE; 3.0，平坦部分和沟槽部分以角度交替地形成; （°），其相对于电子照相感光构件的轴向方向满足关系80＆lt; nlE;＆amp; t;＆nlE; 100。 外周面轴向每100μm宽度的平面部分的宽度e的总和（μm）满足关系5＆nlE; esum＆nlE; 75，e＆sgr / eAv满足e＆sgr / eAv＆nlE的关系; 0.46，其中eAv（μm）是平坦部分的宽度e的平均值，e＆sgr; 是其标准偏差。

公开(公告)号：US07629102B2

公开(公告)日：2009-12-08

申请号：US12025399

申请日：2008-02-04

申请人： Atsushi Ochi ,  Harunobu Ogaki ,  Kazunori Noguchi ,  Hiroki Uematsu ,  Masataka Kawahara

发明人： Atsushi Ochi ,  Harunobu Ogaki ,  Kazunori Noguchi ,  Hiroki Uematsu ,  Masataka Kawahara

IPC分类号： G03G5/00

CPC分类号： G03G5/147 ,  G03G5/047 ,  G03G5/0525

摘要： A method for preparing in high productivity and stably an electrophotographic photosensitive member having depressed portions on its surface, is provided. The method is characterized in that a coating liquid for a surface layer which includes a solvent including a hydrophilic solvent and a hydrophobic solvent and a polymer compound soluble in the hydrophobic solvent is used; the hydrophilic solvent has a boiling point equal to or higher than that of the hydrophobic solvent; the hydrophilic solvent has a dipole moment of 0 or more and less than 2.8, obtained by a structure optimized calculation using a semiempirical molecular orbital calculation; the total mass of the hydrophobic solvent is 50 mass % or more and less than 100 mass % of the total mass of the solvent included in the coating liquid for a surface layer; and after the coating liquid for a surface layer is applied, the depressed portions are formed by condensation on the surface on which the coating liquid for a surface layer is applied.

摘要翻译： 提供了一种以高生产率和稳定地制备其表面具有凹陷部分的电子照相感光构件的方法。 该方法的特征在于，使用包含亲水性溶剂和疏水性溶剂的溶剂的表面层用涂布液和可溶于疏水性溶剂的高分子化合物。 亲水性溶剂的沸点等于或高于疏水性溶剂的沸点; 亲水性溶剂的偶极矩为0以上且小于2.8，通过使用半经验分子轨道计算的结构优化计算获得; 疏水性溶剂的总质量为表面层用涂布液中所含的溶剂总质量的50质量％以上且小于100质量％ 并且在施加表面层用涂布液之后，通过冷凝形成凹部，在其上施加表面层用涂布液的表面上。

公开(公告)号：US20090023091A1

公开(公告)日：2009-01-22

申请号：US12025399

申请日：2008-02-04

申请人： Atsushi Ochi ,  Harunobu Ogaki ,  Kazunori Noguchi ,  Hiroki Uematsu ,  Masataka Kawahara

发明人： Atsushi Ochi ,  Harunobu Ogaki ,  Kazunori Noguchi ,  Hiroki Uematsu ,  Masataka Kawahara

IPC分类号： G03G5/00

CPC分类号： G03G5/147 ,  G03G5/047 ,  G03G5/0525

摘要： A method for preparing in high productivity and stably an electrophotographic photosensitive member having depressed portions on its surface, is provided. The method is characterized in that a coating liquid for a surface layer which includes a solvent including a hydrophilic solvent and a hydrophobic solvent and a polymer compound soluble in the hydrophobic solvent is used; the hydrophilic solvent has a boiling point equal to or higher than that of the hydrophobic solvent; the hydrophilic solvent has a dipole moment of 0 or more and less than 2.8, obtained by a structure optimized calculation using a semiempirical molecular orbital calculation; the total mass of the hydrophobic solvent is 50 mass % or more and less than 100 mass % of the total mass of the solvent included in the coating liquid for a surface layer; and after the coating liquid for a surface layer is applied, the depressed portions are formed by condensation on the surface on which the coating liquid for a surface layer is applied.

摘要翻译： 提供了一种以高生产率和稳定地制备其表面具有凹陷部分的电子照相感光构件的方法。 该方法的特征在于，使用包含亲水性溶剂和疏水性溶剂的溶剂的表面层用涂布液和可溶于疏水性溶剂的高分子化合物。 亲水性溶剂的沸点等于或高于疏水性溶剂的沸点; 亲水性溶剂的偶极矩为0以上且小于2.8，通过使用半经验分子轨道计算的结构优化计算获得; 疏水性溶剂的总质量为表面层用涂布液中所含的溶剂总质量的50质量％以上且小于100质量％ 并且在施加表面层用涂布液之后，通过冷凝形成凹部，在其上施加表面层用涂布液的表面上。

公开(公告)号：US07413840B1

公开(公告)日：2008-08-19

申请号：US11770081

申请日：2007-06-28

申请人： Harunobu Ogaki ,  Atsushi Ochi

发明人： Harunobu Ogaki ,  Atsushi Ochi

IPC分类号： G03G5/147

CPC分类号： G03G5/14713 ,  G03G5/0525 ,  G03G5/14756

摘要： A production method of an electrophotographic photosensitive member which has high productivity when producing a surface layer in which depressed portions which are independent respectively are formed on an electrophotographic photosensitive member surface, and can produce highly uniform depressed portions in a photosensitive member surface, characterized by producing the surface layer by (1) a coating step of producing a coating liquid for a surface layer containing a binder resin and a specific solvent, and coating it on a surface of a cylindrical supporting member, (2) a condensation step of holding the cylindrical supporting member on which the coating liquid for a surface layer is coated, and condensing the surface of the cylindrical supporting member, and (3) a drying step of baking the cylindrical supporting member.

摘要翻译： 一种电子照相感光构件的制造方法，其在生产表面层时具有高生产率，其中分别独立地分别形成有凹陷部分，形成在电子照相感光构件表面上，并且可以在感光构件表面中产生高度均匀的凹陷部分，其特征在于， 所述表面层通过以下步骤：（1）制备用于含有粘合剂树脂和特定溶剂的表面层的涂布液的涂布步骤，并将其涂布在圆柱形支撑构件的表面上;（2）冷凝步骤， 支撑构件，其上涂覆有用于表面层的涂布液，并且将圆筒形支撑构件的表面冷凝，以及（3）烘烤圆筒形支撑构件的干燥步骤。

公开(公告)号：US20080124637A1

公开(公告)日：2008-05-29

申请号：US11770127

申请日：2007-06-28

申请人： Hiroki Uematsu ,  Harunobu Ogaki ,  Masataka Kawahara ,  Atsushi Ochi ,  Akira Shimada ,  Akio Maruyama ,  Kyoichi Teramoto ,  Toshihiro Kikuchi ,  Akio Koganei ,  Takayuki Sumida

发明人： Hiroki Uematsu ,  Harunobu Ogaki ,  Masataka Kawahara ,  Atsushi Ochi ,  Akira Shimada ,  Akio Maruyama ,  Kyoichi Teramoto ,  Toshihiro Kikuchi ,  Akio Koganei ,  Takayuki Sumida

IPC分类号： G03G15/00

CPC分类号： G03G5/147 ,  G03G5/00 ,  G03G5/04

摘要： An electrophotographic photosensitive member is disclosed which is excellent in cleaning performance, has improved durability, and suppresses image defects in various environments. The electrophotographic photosensitive member has a support and a photosensitive layer provided on the support. Depressed portions independent of one another are formed on the surface of the electrophotographic photosensitive member so that the number of the depressed portions per 100 μm square is 76 or more and 1,000 or less. The openings of the depressed portions have an average major axis diameter of more than 3.0 μm and 14.0 μm or less.

摘要翻译： 公开了一种电子照相感光构件，其清洁性能优异，耐久性提高，并且抑制了各种环境中的图像缺陷。 电子照相感光构件具有支撑体和设置在支撑体上的感光层。 在电子照相感光构件的表面上形成彼此独立的凹陷部分，使得每100平方米的凹陷部分的数量为76以上且1000以下。 凹陷部分的开口具有大于3.0μm的平均长轴直径和14.0μm或更小的平均长轴直径。