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31. 发明专利

JPH06160939A LIGHT SHIELDING FILM FOR CAMERA 失效
公开(公告)号：JPH06160939A
公开(公告)日：1994-06-07
申请号：JP31477692
申请日：1992-11-25
申请人： NITTO DENKO CORP
发明人： DOMOTO TADANORI
IPC分类号： G03B11/00 , G03B17/04
摘要： PURPOSE:To provide the light shielding film which is used by building the film into a compact camera having a zoom function and maintains light shieldability even when a lens barrel moves to zoom. CONSTITUTION:This light shielding film is constituted by laminating an elastomer layer 2 on a fluororesin layer 1 and forming a through-hole 3 in these layers. This film is fixed into the camera by an adhesive layer 4 and is built into the camera in such a manner that the lens barrel is inserted into the through-hole 3. The fluororesin layer 1 and the lens barrel are slid at the time of the zoom movement of the lens barrel and the film is brought into tight contact with the outer peripheral surface of the lens barrel at all times by the elasticity of the elastomer layer 2, by which the light shieldability is maintained.

32. 发明专利

JPH0616856A PRODUCTION OF THIN FLUORORESIN FILM BACKED WITH ADHESIVE LAYER 失效
公开(公告)号：JPH0616856A
公开(公告)日：1994-01-25
申请号：JP17543692
申请日：1992-07-02
申请人： NITTO DENKO CORP
发明人： DOMOTO TADANORI , MURAKAMI TOMOYUKI
IPC分类号： B29C41/12 , B29C41/46 , B29K27/12 , B29L7/00 , C08J7/04 , C08J7/16
摘要： PURPOSE:To facilitate the production of a thin fluororesin film desirable for covering the surface of an article made of metal, glass, plastics or the like. CONSTITUTION:A fluororesin dispersion is applied to the surface of a heat- resistant carrier sheet and heated to a temperature higher than the melting point of the fluororesin to form a thin fluororesin film on the carrier sheet, and a basic monomer is polymerized on the surface of this thin film to form an adhesive layer thereon.

33. 发明专利

JPH03110137A DEFORMED TUBULAR PRODUCT AND PRODUCTION THEREOF 失效
公开(公告)号：JPH03110137A
公开(公告)日：1991-05-10
申请号：JP25009889
申请日：1989-09-25
申请人： NITTO DENKO CORP
发明人： NAKAMURA MASAO , NAKAJIMA TOSHIO , ISHIZAKA HITOSHI , DOMOTO TADANORI , SASAKI TAIZO , HARADA CHIAKI
IPC分类号： B32B27/30 , B29D23/00 , B32B1/08 , G03G15/20
摘要： PURPOSE:To make hardly meandering when the title tubular product is used for sealing of an image forming apparatus and to make it possible to return with relative easiness meandering by adjusting a slope of a guide roller and tension of the tubular product even when the meandering is generated by making a difference in the peripheral lengths of the tubular product at its end part and central part a specific value. CONSTITUTION:In the deformed tubular product a difference in the peripheral lengths of an end part and a central part of a polyimide tubular product is made in the range of 0.07-20%. After the polyimide tubular product with a uniform difference in peripheral length is obtd., a heat-resistant core body with a necessary difference in peripheral length is inserted in the tubular product and they are heated and sintered. Alternatively, after the polyimide tubular product with a uniform difference in peripheral length is obtd., the tubular product is heated and sintered while it is rotated between two deformed rolls with a necessary difference in peripheral length. Furthermore, it is pref. that a double-layered tubular product with a fluororesin layer on the outer face of the deformed tubular product is prepd.

34. 发明专利

JPH0312268A FLUOROPLASTIC COATING METHOD 失效
公开(公告)号：JPH0312268A
公开(公告)日：1991-01-21
申请号：JP14573489
申请日：1989-06-07
申请人： NITTO DENKO CORP
发明人： DOMOTO TADANORI , TAKAHATA EIJI , UEMURA TAKEMASA , NAKAMURA MASAO , HARADA CHIAKI
IPC分类号： B05D7/24 , C09D179/08
摘要： PURPOSE:To obtain a strongly and closely bonded film by a method wherein a polyimide resin layer is formed to the surface of a base material and fluoroplastic is applied to said resin layer to be baked to simultaneously perform the enhancement of the imidating rate of the polyimide resin layer and the curing of the fluoroplastic layer. CONSTITUTION:A polyimide acid solution is applied to the surface of a base material such as a metal, glass or ceramic to form a polyimide resin layer containing a non-imidated part. Fluoroplastic (e.g. a tetrafluoroethylene homopolymer) is applied on said resin layer to form a top coat layer. Subsequently, the coated base material is baked to perform the enhancement of the imidating rate of the aforementioned polyimide resin layer and the curing of the fluoroplastic of the top coat layer. As mentioned above, since the surface of the base material is coated with the fluoroplastic resin film by interposing the polyimide resin layer between the base material and the fluoroplastic and adjusting the imidating rate, the obtained film is strongly and closely bonded and becomes uniform.

35. 发明专利

JP2005195750A Photoreceptor belt 审中-公开
标题翻译：光电皮带
公开(公告)号：JP2005195750A
公开(公告)日：2005-07-21
申请号：JP2004000459
申请日：2004-01-05
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： TAKAYAMA YOSHINARI , WATANABE YOSHINOBU , DOMOTO TADANORI
IPC分类号： G03G21/00
摘要： PROBLEM TO BE SOLVED: To provide a photoreceptor belt superior in its following capability of a driving roll and obtaining a high image quality, without printing gaps by reducing dust produced by frictional wear with the driving roller. SOLUTION: A polyimide belt is provided with a photosensitive layer and its surface hardness is 2.6Gpa or higher. Furthermore, the surface roughness of the interior surface of the polyimide belt is Rmax3μm and below. Moreover, the belt is composed of polyimide with 2 or more layers, having differing coefficients of linear expansion. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种在驱动辊的跟随能力方面优越且获得高图像质量的感光带，通过减少由驱动辊产生的摩擦磨损产生的粉尘而不产生印刷间隙。解决方案：聚酰亚胺带设有感光层，其表面硬度为2.6Gpa以上。此外，聚酰亚胺带的内表面的表面粗糙度为Rmax3μm以下。此外，该带由具有不同的线膨胀系数的具有2层或更多层的聚酰亚胺组成。版权所有（C）2005，JPO＆NCIPI

36. 发明专利

JP2004341281A Semiconductive belt 审中-公开
公开(公告)号：JP2004341281A
公开(公告)日：2004-12-02
申请号：JP2003138331
申请日：2003-05-16
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： TACHIBANA TOSHIMITSU , DOMOTO TADANORI , IWAMOTO TOSHIAKI
IPC分类号： G03G15/16 , B29C41/04 , B29K79/00 , B29L29/00
摘要： PROBLEM TO BE SOLVED: To provide a semiconductive belt whose surface characteristic hardly changes or whose surface hardly deteriorates even in continuous use and which has excellent durability.
SOLUTION: Streaks in the form of recesses or projections, which are continuous in the circumferential direction of the belt, are formed on the external face of the belt. In this case, it is preferable that the average intervals between the recesses or between the projections, which is measured in the direction of the width of the external face of the belt, is equal to or lower than a predetermined value. The surface roughness value Rz obtained by ten-point average roughness is preferably within a predetermined range. In the case, it is preferable that the internal face of a die roughened by being abraded with abrasives while being rotated has an external face transferred by rotation molding.
COPYRIGHT: (C)2005,JPO&NCIPI

37. 发明专利

JP2004233519A Photoreceptor belt and method for manufacturing same 审中-公开
公开(公告)号：JP2004233519A
公开(公告)日：2004-08-19
申请号：JP2003020386
申请日：2003-01-29
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： TAKAYAMA YOSHINARI , DOMOTO TADANORI
IPC分类号： G03G21/00 , G03G5/10
摘要： PROBLEM TO BE SOLVED: To provide a photoreceptor belt which prevents disarrangement of an electrostatic latent image and dislocation in transfer of a toner image onto an intermediate transfer member, with respect to a photoreceptor belt used for image formation in a copying machine, a facsimile machine, a printer, a complex machine comprising these, or the like. SOLUTION: The photoreceptor belt has a flatness of ≤0.5 mm in an environment at ≥40% humidity and also has a surface resistivity of ≤10 13 after belt formation and an expansion rate of ≤40 ppm by moisture absorption. In a method for manufacturing the photoreceptor belt, the inner and outer surfaces of a substrate are uniformly heat-treated in a belt forming step. In the method, it is preferable that a weight reduction rate of the substrate heat-treated for the first time is ≥93%. COPYRIGHT: (C)2004,JPO&NCIPI

38. 发明专利

JP2004205617A Semiconductive seamless belt and its manufacture method 审中-公开
标题翻译：半导体无缝带及其制造方法
公开(公告)号：JP2004205617A
公开(公告)日：2004-07-22
申请号：JP2002371917
申请日：2002-12-24
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： DOMOTO TADANORI
IPC分类号： G03G15/00 , C08L79/00 , C08L79/08 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an intermediate transfer belt which is used for an intermediate transfer type image forming device, has a small variation of resistance and small environmental fluctuation in resistance, and does not require measurement and control of humidity on the side of the image forming device.
SOLUTION: The seamless belt is manufactured by compounding a dehydration reagent and a dopant to a mixture of polyamide acid solution and dedoped polyaniline solution. Therein, the inplane variation and the effect to the environmental fluctuation of the surface resistivity is suppressed within a specified range. Further, preferably, a polymer containing the polyaniline of a proper amount is formed, the dehydration reagent is a mixture of a dehydration agent and a catalyst, and the dopant is a reaction product of the dehydaration reagent or a specified inorganic acid or organic acid.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：为了提供用于中间转印型图像形成装置的中间转印带，电阻变化小，电阻环境波动小，不需要测量和控制湿度侧的图像形成装置。解决方案：无缝带是通过将脱水剂和掺杂剂混合到聚酰胺酸溶液和去掺杂的聚苯胺溶液的混合物中制备的。其中，面内变化和对表面电阻率的环境波动的影响被抑制在规定范围内。此外，优选形成含有适量的聚苯胺的聚合物，脱水试剂是脱水剂和催化剂的混合物，掺杂剂是脱水试剂或规定的无机酸或有机酸的反应产物。版权所有（C）2004，JPO＆NCIPI

39. 发明专利

JP2004045916A Belt for intermediate transferring and fixing and its manufacturing method 审中-公开
公开(公告)号：JP2004045916A
公开(公告)日：2004-02-12
申请号：JP2002205137
申请日：2002-07-15
申请人： Nitto Denko Corp , 日東電工株式会社
发明人： DOMOTO TADANORI
IPC分类号： G03G15/20 , B32B27/30 , G03G15/16 , G03G15/24
摘要： PROBLEM TO BE SOLVED: To provide a belt for intermediate transferring and fixing which is excellent in surface smoothness, offset property, and wear resistance, and also to provide its manufacturing method.
SOLUTION: The belt for intermediate transferring and fixing has a polyimide resin tubular internal layer containing an electrically conductive filler and a fluororesin tubular external layer containing the electrically conductive filler. Volume resistivity of the belt is 10
7 to 10
12 Ωcm. Fluororesin constituting the external layer consists mainly of tetrafluoroethylene / perfluoroalykyl vinyl ether copolymer. Thickness of the external layer is 15 to 40μm and surface roughness Rz is ≤1.5μm.
COPYRIGHT: (C)2004,JPO

40. 发明专利

JP2003266454A SEAMLESS SINGLE-LAYER BELT AND MANUFACTURING METHOD THEREFOR 审中-公开
公开(公告)号：JP2003266454A
公开(公告)日：2003-09-24
申请号：JP2002068466
申请日：2002-03-13
申请人： NITTO DENKO CORP
发明人： DOMOTO TADANORI
IPC分类号： C08J5/18 , B29C41/04 , B29C41/46 , B29C41/48 , B29K79/00 , B29L29/00 , C08K3/00 , C08L79/08
摘要： PROBLEM TO BE SOLVED: To provide a seamless single-layer belt hard to generate outward warpage even in the case of a diameter of 100 mm or more and excellent in flatness, and a manufacturing method therefor. SOLUTION: The manufacturing method for the seamless single-layer belt with a diameter of 100 mm or more includes a process for centrifugally molding a solution of a precursor of a polyimide resin on the inner surface of a cylindrical mold to obtain a precursor belt dried and solidified until a self-supporting state can be obtained and subsequently replacing the precursor belt with a support having an outer diameter smaller than the inner diameter of the precursor belt and heat-treating the precursor belt to imidate the same. After the precursor belt is replaced with the support, the belt is shrunk by 4-10% in its width direction by heat treatment. COPYRIGHT: (C)2003,JPO

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