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1. 发明授权

US06572791B2 Electroconductive elastic member, elastic member and image formation equipment 失效
标题翻译：导电弹性件，弹性件和成像设备
公开(公告)号：US06572791B2
公开(公告)日：2003-06-03
申请号：US09730777
申请日：2000-12-07
申请人： Junji Sakata , Hirotaka Yamazaki , Tadashi Nakajima , Takahiro Kawagoe
发明人： Junji Sakata , Hirotaka Yamazaki , Tadashi Nakajima , Takahiro Kawagoe
IPC分类号： H01B100
CPC分类号： C08J9/0066 , C08G18/12 , C08G18/4072 , C08G18/4837 , C08G18/632 , C08G2101/0008 , C08G2101/0058 , C08G2101/0066 , C08J2375/04 , Y10S206/823 , Y10S493/96 , C08G18/302
摘要： There is disclosed an elastic member constituted of polyurethane foam obtained by agitationally mixing with water, a urethane prepolymer synthesized from a polyol and a polyisocyanate, characterized by simultaneously employing as polyols, a (A) polymer polyol synthesized from a polyether polyol as a basis, comprising at least 70% by weight of oxypropylene moiety; and a (B) hydrophilic polyether polyol comprising at least 50% by weight of oxyethylene moiety, or simultaneously employing as polyols, the component (A), the component (B) and a (C) polyether polyol comprising at least 70% by weight of oxypropylene moiety. The above elastic member is simultaneously imparted with excellent characteristics such as low hardness, fine cells, low residual compressive strain, high strength and the like. The polyurethane foam which constitutes the elastic member can be produced by free foaming. The electroconductive elastic member which is produced by using an aqueous dispersion of carbon instead of water is imparted with low electric resistance in addition to the above excellent characteristics.
摘要翻译：公开了一种弹性构件，其由通过与水搅拌混合得到的聚氨酯泡沫构成，由多元醇和多异氰酸酯合成的氨基甲酸酯预聚物，其特征在于同时使用作为多元醇的（A）聚合物多元醇合成的聚合物多元醇作为基础，包含至少70重量％的氧化丙烯部分; 和（B）亲水性聚醚多元醇，其包含至少50重量％的氧化乙烯部分，或同时使用作为多元醇的组分（A），组分（B）和（C）聚醚多元醇，其包含至少70重量％的氧亚丙基部分。上述弹性构件同时具有低硬度，细小电池，低残余压缩应变，高强度等优异的特性。构成弹性部件的聚氨酯泡沫体可以通过自由发泡而制造。通过使用碳水分散体代替水制造的导电弹性构件除了上述优异的特性外还具有低电阻。

2. 发明授权

US5911099A Electroconductiive member and electrophotogrpahic apparatus 失效
标题翻译：导电构件和电子照相装置
公开(公告)号：US5911099A
公开(公告)日：1999-06-08
申请号：US960313
申请日：1997-10-29
申请人： Tadashi Nakajima , Junji Sakata , Takahiro Kawagoe
发明人： Tadashi Nakajima , Junji Sakata , Takahiro Kawagoe
IPC分类号： C08K5/098 , C08K5/19 , C08L75/00 , C08L75/04 , G03G15/00 , G03G15/08 , G03G15/16 , H01B1/20 , G03G15/06 , G03G15/14
CPC分类号： G03G15/1685 , C08K5/19 , G03G15/0818 , G03G2215/0861
摘要： There are disclosed an electroconductive member comprising a high-molecular material, e.g. polyurethane as a matrix and a quaternary ammonium salt of an organic acid, e.g. bis-or-mono(quaternary ammonium) oxalate; and an electrophotographic apparatus which makes use of the electroconductive member, especially in the form of an electroconductive roller as a developing member, image transfer member, etc. The electroconductive member, when used in electrophotographic mechanism, minimizes an increase in electric resistance at the time of normal continuous passage of an electric current and also variation range in the electric resistance between the circumstances of low temperature/humidity and those of high temperature/humidity.
摘要翻译：公开了一种导电构件，其包含高分子材料，例如，作为基质的聚氨酯和有机酸的季铵盐，例如草酸二 - 或单（季铵）; 以及使用导电构件的电子照相设备，特别是以导电辊作为显影部件的形式，图像转印部件等。当用于电子照相机构时，导电部件使电流的增加最小化电流的正常连续通过以及低温/高湿环境下的电阻的变化范围。

3. 发明授权

US5933693A Electroconductive elastic member and electrophotographic apparatus using same 失效
标题翻译：导电弹性元件和使用它的电子照相设备
公开(公告)号：US5933693A
公开(公告)日：1999-08-03
申请号：US21400
申请日：1998-02-10
申请人： Junji Sakata , Tadashi Nakajima , Takahiro Kawagoe
发明人： Junji Sakata , Tadashi Nakajima , Takahiro Kawagoe
IPC分类号： C08G18/66 , C08K5/19 , G03G15/08 , G03G15/16 , B29D22/00 , B32B27/00
CPC分类号： G03G15/1685 , C08G18/6607 , C08K5/19 , G03G15/0818 , G03G2215/0861 , Y10T428/1376 , Y10T428/31609
摘要： An electroconductive elastic member including an electroconductive material prepared from a polyurethane foam or polyurethane elastomer using a polyester polyol and a quaternary ammonium salt to impart electroconductivity. The polyurethane foam or polyurethane elastomer can be produced using, as a polyisocyanate component, a hydrogenated product from diphenyl-methane diisocyanate, hexamethylene diisocyanate, or any of various modified diphenylmethane/hexamethylene diisocyanate The elastic member may be used in an electrophotographic apparatus. Thus the member is well suited for producing an elastic roller with intermediate electric resistance in an electrophotographic process.
摘要翻译：一种导电弹性构件，其包括使用聚酯多元醇和季铵盐由聚氨酯泡沫或聚氨酯弹性体制备的导电材料以赋予导电性。聚氨酯泡沫或聚氨酯弹性体可以使用二苯基甲烷二异氰酸酯，六亚甲基二异氰酸酯或各种改性二苯基甲烷/六亚甲基二异氰酸酯中的任何一种作为多异氰酸酯组分来制备。弹性体可用于电子照相设备中。因此，该构件非常适合于在电子照相方法中制造具有中等电阻的弹性辊。

4. 发明授权

US06810227B2 Foamed elastic member for use in image forming apparatus 有权
标题翻译：用于图像形成装置的发泡弹性构件
公开(公告)号：US06810227B2
公开(公告)日：2004-10-26
申请号：US10303999
申请日：2002-11-26
申请人： Junji Sakata , Hirotaka Yamazaki
发明人： Junji Sakata , Hirotaka Yamazaki
IPC分类号： G03G1508
CPC分类号： G03G15/0808 , G03G2215/0869
摘要： A foamed elastic member according to the invention comprises an elastic member made of polyurethane foam molded by an in-mold foaming process, and has properly determined physical properties of its surface and/or properly determined shape and arrangement of foam cells opened on the surface. The foamed elastic member is suitably used for a toner feed roller in a developing device for electrically charging toner from a toner storage portion, feeding the toner onto the surface of a photosensitive member and forming a toner image corresponding to an electrostatic latent image on the surface of the photosensitive member. In this case, it exhibits an excellent toner scraping and toner feeding performance, to form an image free from such defect as irregularity in pitch and density, or free from reduction in density.
摘要翻译：根据本发明的泡沫弹性构件包括由通过模内发泡方法模制的聚氨酯泡沫制成的弹性构件，并且具有适当确定的表面的物理性质和/或在表面上开口的泡沫单元的适当确定的形状和布置。泡沫弹性构件适合用于显影装置中的调色剂供给辊，用于从调色剂存储部分对调色剂进行充电，将调色剂供给到感光构件的表面上，并在表面上形成对应于静电潜像的调色剂图像的光敏元件。在这种情况下，它表现出优异的调色剂刮擦和调色剂进料性能，以形成没有间距和密度不规则的缺陷或没有密度降低的图像。

5. 发明授权

US06818674B2 Elastic member and image formation equipment 有权
标题翻译：弹性件和成像设备
公开(公告)号：US06818674B2
公开(公告)日：2004-11-16
申请号：US09985771
申请日：2001-11-06
申请人： Junji Sakata , Hirotaka Yamazaki
发明人： Junji Sakata , Hirotaka Yamazaki
IPC分类号： C08G1828
CPC分类号： C08J9/0061 , C08J2375/04 , C08J2483/00 , G03G15/0808 , G03G2215/0869
摘要： There are disclosed an elastic member which comprises (A) polyurethane foam obtained by agitationally mixing a foaming agent, a foam stabiizer and a urethane prepolymer synthesized from a polyol and a polyisocyanate in the presence of a modified silicone, or (B) polyurethane foam obtained by agitationally mixing a polyol, a polyisocyanate, a modified silicone oil bearing a functional group reactive with a polyisocyanate, a foaming agent and a foam stabiizer comprising a polyether modified silicone containing 50 to 100% by weight of a polyoxyethylene unit in the polyether moiety; image formation equipment equipped with the above elastic member; and a toner supply roller which is composed of a foamed elastic member mounted on a developing apparatus and which has a compression spring constant in the range of 0.25 to 5.0 N/mm and a surface friction resistance in the range of 0.4 to 1.2 N. The elastic member has low surface-friction resistance and uniform fine cells, and is well suited as a member for image formation equipment.
摘要翻译：公开了一种弹性构件，其包含（A）通过搅拌混合发泡剂，泡沫稳定剂和由多元醇和多异氰酸酯合成的氨基甲酸酯预聚物在改性聚硅氧烷的存在下获得的聚氨酯泡沫，或（B）聚氨酯泡沫，获得的聚氨酯泡沫通过搅拌混合多元醇，多异氰酸酯，具有与多异氰酸酯反应的官能团的改性硅油，发泡剂和泡沫稳定剂，其包含聚醚部分中含有50至100重量％的聚氧乙烯单元的聚醚改性硅氧烷; 配备上述弹性构件的成像设备; 以及调色剂供应辊，其由安装在显影装置上的发泡弹性构件组成，并且压缩弹簧的常数范围为0.25至5.0N / mm，表面摩擦阻力在0.4至1.2N的范围内。弹性构件具有低的表面摩擦阻力和均匀的细小单元，并且非常适合作为图像形成设备的构件。

6. 发明授权

US06480692B2 Toner supply roller and developing apparatus 有权
标题翻译：墨粉供应辊和显影装置
公开(公告)号：US06480692B2
公开(公告)日：2002-11-12
申请号：US09803899
申请日：2001-03-13
申请人： Hirotaka Yamazaki , Junji Sakata
发明人： Hirotaka Yamazaki , Junji Sakata
IPC分类号： G03G1508
CPC分类号： G03G15/0808 , G03G2215/0869
摘要： There are disclosed a toner supply roller which is composed of a foamed elastic body, and has a compression spring constant of 0.25 to 5.0 N/mm, and preferably has the number of cells per a length of 25 mm being 50 to 1200 in the foamed elastic layer; a developing apparatus which is equipped with the above toner supply roller and capable of affording images free from defect such as unevenness in pitch, density, etc.; another developing apparatus which is equipped with a toner supply roller and a developing roller, each being electroconductive, and which satisfies the requirement that the electric resistance of the toner supply roller is always lower than that of the developing roller at an impressed voltage of 100V to 500V, thereby enabling formation of satisfactory images by favorable electrification with the toner supply roller due to favorable adsorption of a toner onto the developing roller; and an image formation apparatus equipped with any of the above developing apparatuses.
摘要翻译：公开了一种由泡沫弹性体构成的调色剂供给辊，其压缩弹簧常数为0.25〜5.0N / mm，优选在发泡体中每25mm的细胞数为50〜1200个弹性层; 配备有上述调色剂供应辊并且能够提供没有诸如间距，密度等不均匀的图像的显影装置; 另外一种具有调色剂供应辊和显影辊的显影装置，它们各自都是导电的，并且其满足要求在100V的外加电压下调色剂供应辊的电阻总是低于显影辊的电阻 500V，从而由于调色剂有利地吸附到显影辊上，因此能够通过利用调色剂供应辊的良好带电形成令人满意的图像; 以及配备有任何上述显影装置的图像形成装置。

7. 发明授权

US5132064A Foam molding method and mold assembly therefor 失效
标题翻译：泡沫成型方法和模具组装
公开(公告)号：US5132064A
公开(公告)日：1992-07-21
申请号：US581253
申请日：1990-09-11
申请人： Toshio Iwasawa , Takeo Yoshida , Junji Sakata , Kazushige Ebe , Itsumi Komada , Toshihiro Hamaji , Akihito Kimura
发明人： Toshio Iwasawa , Takeo Yoshida , Junji Sakata , Kazushige Ebe , Itsumi Komada , Toshihiro Hamaji , Akihito Kimura
IPC分类号： B29C33/26 , B29C44/04
CPC分类号： B29C33/26 , B29C44/04 , B29L2031/58 , B29L2031/751 , Y10S425/812
摘要： A method of molding a foamed product is carried out by using a front and a rear mold for molding a front and a rear portion of the foamed product and a core interposed between the front and rear molds. The method includes steps of pouring or spraying one of foaming stock solutions onto a molding surface of the one mold, arranging the core in the one mold and pouring or spraying the other foaming stock solution onto the core or a molding surface of the other mold. The front and rear molds are closed at a moment when a lapse of time arrives at 30-100% of a rise time of the foaming stock solution later applied. Thereafter the closed molds are maintained in a position where an angle of the closed molds relative to a horizontal plane is within a range between 90.degree. and an angle more than 0.degree.. The front and rear molds are pivotally connected to each other with their one ends by means of a pivot shaft. The core is pivotally supported with its one end by a shaft arranged in parallel to the pivot shaft. The core is formed with a through-hole and said rear mold is provided with a protrusion to be hermetically fitted in the through-hole of the core.

8. 发明授权

US08859634B2 Adherent resin composition 有权
标题翻译：粘附树脂组合物
公开(公告)号：US08859634B2
公开(公告)日：2014-10-14
申请号：US12810996
申请日：2008-12-09
申请人： Junji Sakata , Hajime Kitano , Hiroyuki Kanesugi
发明人： Junji Sakata , Hajime Kitano , Hiroyuki Kanesugi
IPC分类号： C08F2/46 , C08J3/28 , C09J175/16 , C08G18/67 , C08F290/06 , C08F283/00 , C09J133/14 , C09J4/00
CPC分类号： C08F283/006 , C08F290/067 , C08G18/672 , C09J4/00 , C09J133/14 , C09J175/16
摘要： This invention relates to a photo-curing or electron beam-curing adherent resin composition being excellent in the adhesiveness to various adherends such as metal oxide, metal, resin and so on, and more particularly to an adherent resin composition of a photo-curing or electron beam-curing type comprising a difunctional urethane (metha)acrylate oligomer (A) and a monomer component (B), characterized in that the urethane (metha)acrylate oligomer includes a urethane prepolymer portion composed of a polyol and a polyisocyanate wherein repetitive number of urethane prepolymer portion (n) is 10-30, and the monomer component (B) is a cyclic monomer having a (metha)acryloyl group.
摘要翻译：本发明涉及对各种被粘附体如金属氧化物，金属，树脂等具有优异的粘合性的光固化或电子束固化粘合树脂组合物，更具体地说，涉及光固化或包含双官能氨基甲酸酯（甲基）丙烯酸酯低聚物（A）和单体组分（B）的电子束固化型，其特征在于，所述聚氨酯（甲基）丙烯酸酯低聚物包括由多元醇和多异氰酸酯组成的氨基甲酸酯预聚物部分，其中重复数的氨基甲酸酯预聚物部分（n）为10〜30，单体成分（B）为具有（甲基）丙烯酰基的环状单体。

9. 发明申请

US20100286301A1 ADHERENT RESIN COMPOSITION 有权
标题翻译：附着树脂组合物
公开(公告)号：US20100286301A1
公开(公告)日：2010-11-11
申请号：US12810996
申请日：2008-12-09
申请人： Junji Sakata , Hajime Kitano , Hiroyuki Kanesugi
发明人： Junji Sakata , Hajime Kitano , Hiroyuki Kanesugi
IPC分类号： C08F26/06 , C08F2/50
CPC分类号： C08F283/006 , C08F290/067 , C08G18/672 , C09J4/00 , C09J133/14 , C09J175/16
摘要： This invention relates to a photo-curing or electron beam-curing adherent resin composition being excellent in the adhesiveness to various adherends such as metal oxide, metal, resin and so on, and more particularly to an adherent resin composition of a photo-curing or electron beam-curing type comprising a difunctional urethane (metha)acrylate oligomer (A) and a monomer component (B), characterized in that the urethane (metha)acrylate oligomer includes a urethane prepolymer portion composed of a polyol and a polyisocyanate wherein repetitive number of urethane prepolymer portion (n) is 10-30, and the monomer component (B) is a cyclic monomer having a (metha)acryloyl group.
摘要翻译：本发明涉及对各种被粘附体如金属氧化物，金属，树脂等具有优异的粘合性的光固化或电子束固化粘合树脂组合物，更具体地说，涉及光固化或包含双官能氨基甲酸酯（甲基）丙烯酸酯低聚物（A）和单体组分（B）的电子束固化型，其特征在于，所述聚氨酯（甲基）丙烯酸酯低聚物包括由多元醇和多异氰酸酯组成的氨基甲酸酯预聚物部分，其中重复数的氨基甲酸酯预聚物部分（n）为10〜30，单体成分（B）为具有（甲基）丙烯酰基的环状单体。

10. 发明申请

US20100014891A1 CONDUCTIVE ELASTIC ROLLER AND IMAGE FORMING APPARATUS COMPRISING THE SAME 有权
标题翻译：导电弹性辊和图像形成装置包括它们
公开(公告)号：US20100014891A1
公开(公告)日：2010-01-21
申请号：US12444259
申请日：2007-09-28
申请人： Junji Sakata
发明人： Junji Sakata
IPC分类号： G03G15/02
CPC分类号： G03G15/0233 , G03G15/0818 , G03G15/1685 , G03G15/2057
摘要： This invention is a conductive elastic roller (1) comprising a shaft member (2) and one or more elastic layers (3) disposed on an outside of the shaft member (2) in a radial direction, wherein at least one of the elastic layers (3) is composed of an ultraviolet-curing type resin formed by curing a raw material for the elastic layer comprising a urethane acrylate oligomer (A), a photo-polymerization initiator (B) and a conductive agent (C) through ultraviolet irradiation, and the urethane acrylate oligomer (A) is a urethane acrylate oligomer synthesized by using as a polyol a polyether polyol (a1) having a proportion of primary hydroxyl groups in hydroxyl groups located at molecular ends of not less than 40% obtained by an addition polymerization of propylene oxide to a polyhydric alcohol alone, or the polyether polyol (a1) and another polyol (a2), and provides a conductive elastic roller (1) provided with an elastic layer having a low hardness, a small compression residual strain and an improved stain resistance to an adjoining member such as Organic Photoconductors or the like.
摘要翻译：本发明是一种导电性弹性辊（1），其包括轴部件（2）和一个或多个在径向方向上设置在轴部件（2）的外侧上的弹性层（3），其中至少一个弹性层（3）由通过紫外线照射使包含氨基甲酸酯丙烯酸酯低聚物（A），光聚合引发剂（B）和导电剂（C）的弹性层的原料固化而形成的紫外线固化型树脂，氨基甲酸酯丙烯酸酯低聚物（A）是通过使用作为多元醇而合成的氨基甲酸酯丙烯酸酯低聚物的方法，所述聚醚多元醇（a1）具有通过加成聚合得到的位于分子末端的羟基中的羟基的比例为40质量％的环氧丙烷与单独的多元醇，或聚醚多元醇（a1）和另一种多元醇（a2）反应，并提供具有低硬度，小压缩残余应变的弹性层的导电性弹性辊（1）和 n改善对诸如有机感光体等的邻接构件的耐污染性。

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