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    • 2. 发明申请
    • Electrophotographic photoconductor
    • US20070105031A1
    • 2007-05-10
    • US11593504
    • 2006-11-07
    • Kataro FukushimaHisayuki UtsumiTomoko KanazawaKatsuya Takano
    • Kataro FukushimaHisayuki UtsumiTomoko KanazawaKatsuya Takano
    • G03G5/05
    • G03G5/0564G03G5/043G03G5/047G03G5/0614G03G5/0672G03G5/14708G03G5/14756
    • An electrophotographic photoconductor comprising a conductive substrate and at least a charge generating layer and a charge transporting layer successively layered on the substrate, wherein the charge transporting layer comprises a charge transporting material (M) and a binder resin (B) which contains, as a main component, a compound represented by the general formula (1): in which R1, R2, R3, R4, R5, R6, R7 and R8, may be the same or different each other and each independently denote a hydrogen atom, a halogen atom, or a substituted or unsubstituted C1 to C6 alkyl group; and R9 and R10 may be the same or different each other and each independently denote a hydrogen atom, a halogen atom, a substituted or unsubstituted C1 to C6 alkyl group, a saturated cyclic C4 to C10 hydrocarbyl group, or a substituted or unsubstituted aryl group; and n denotes an integer: and further has a layered structure composed of a plurality of said charge transporting layers wherein the outermost layer of the said charge transporting layers show 50% or higher elastic power (ηHU) measured in the surface coating hardness test by applying a highest pushing load of 5 mN to the surface layer at ambient temperature of 25° C. and at 50% relative humidity and hardness (Hplast) of plastic deformation in a range from 220 N/mm2 or higher to 275 N/mm2 or lower. The ratio M/B by weight of the charge transporting material (M) of the outermost layer and the binder resin (B) is controlled to be preferably 30/70 or lower and more preferably in a range from 7/93 or higher and 20/80 or lower and a preferable enamine type charge transporting material (2) is added to obtain an electrophotographic photoconductor excellent in printing durability and high photo-response.
    • 6. 发明申请
    • Image forming device
    • 图像形成装置
    • US20060210311A1
    • 2006-09-21
    • US10545439
    • 2004-02-13
    • Mikio KakuiKoichi ToriyamaKotaro FukushimaHisayuki UtsumiSayaka FujitaAkiko Uchino
    • Mikio KakuiKoichi ToriyamaKotaro FukushimaHisayuki UtsumiSayaka FujitaAkiko Uchino
    • G03G15/00G03G21/00G03G15/08
    • G03G15/00G03G9/0819G03G21/00
    • An object of the invention is to provide an image forming apparatus being excellent in cleaning property for an electrophotographic photoreceptor and capable of forming a high-quality, high-resolution image. A surface free energy (γ) of a photoreceptor (2) which is provided in the image forming apparatus (1) and is exposed to a light corresponding to image information for formation of an electrostatic latent image is set to 20 to 35 mN/m. A volume average diameter of a toner particles included in a developer stored in a developing unit (29) to develop an electrostatic latent image and form a toner image is set to 4-7 mum. When γ of the photoreceptor (2) is set to within a small range as the particle size of toner is reduced, even small-particle-size toner hence increased in specific surface area and largely affected by a inter-molecular force is limited in adhesion force to the surface of the photoreceptor (2) to provide a good cleaning property, whereby a cleaning property is enhanced and at the same time a high-quality image can be formed.
    • 本发明的目的是提供一种成像装置,它具有优异的电子照相感光体的清洁性能并能形成高质量,高分辨率的图像。 设置在图像形成装置(1)中并且对应于用于形成静电潜像的图像信息的光曝光的感光体(2)的表面自由能(γ)设定为20〜35mN / m 。 包含在存储在显影单元(29)中以显影静电潜像并形成调色剂图像的显影剂中的显影剂的体积平均直径设定为4-7μm。 当调色剂的粒径减小时,感光体(2)的γ值设定在小范围内时,即使是小粒径调色剂,因此比表面积增加,并且受分子间力的影响也受到限制 对感光体(2)的表面施加力以提供良好的清洁性能,从而提高清洁性能,同时可以形成高质量的图像。
    • 8. 发明授权
    • Electrophotographic photoreceptor
    • 电子照相感光体
    • US07074531B2
    • 2006-07-11
    • US10740524
    • 2003-12-22
    • Kotaro FukushimaMikio KakuiKoichi ToriyamaHisayuki Utsumi
    • Kotaro FukushimaMikio KakuiKoichi ToriyamaHisayuki Utsumi
    • G03G5/147
    • G03G15/751
    • In an electrophotographic photoreceptor including a conductive substrate and a photoreceptive layer formed on the conductive substrate wherein the photoreceptive layer charged uniformly is exposed to light corresponding to an image information to form an electrostatic latent image, the surface free energy (γ) is determined to be at least 20 mN/m and at most 35 mN/m. The determination of γ on the surface of the photoreceptor 1 in the appropriate range makes it possible to suppress excessive adhesion of a toner to the surface of the photoreceptor, to suppress adhesion of foreign matters such as a paper powder and to make easy the separation thereof from the surface, which results in improving the cleanability of the photoreceptor. Since the image is formed with the photoreceptor 1 having always the clean surface, the damage or the decrease in image quality does not occur over a long period of time.
    • 在包括导电基片和形成在导电基片上的感光层的电子照相感光体中,其中将均匀带电的感光层暴露于对应于图像信息的光以形成静电潜像,表面自由能(γ)被确定为 至少20mN / m和最多35mN / m。 感光体1的表面上的γ测定在适当的范围内可以抑制调色剂对感光体的表面的过度粘附,抑制异物如纸粉的粘附,并使其易于分离 从表面,这导致改善感光体的可清洁性。 由于图像由始终具有清洁表面的感光体1形成,所以在长时间内不会发生损坏或图像质量的降低。
    • 9. 发明授权
    • Nonaqueous secondary battery and flame retardant for the same
    • 非水二次电池和阻燃剂相同
    • US08592081B2
    • 2013-11-26
    • US13088666
    • 2011-04-18
    • Hisayuki Utsumi
    • Hisayuki Utsumi
    • H01M10/056
    • H01M10/0525C07C239/22C07C251/68C07D207/404H01M10/0567
    • A nonaqueous secondary battery, comprising: a positive electrode; a negative electrode; and a nonaqueous electrolyte solution, the nonaqueous electrolyte solution containing as a flame retardant a compound of the general formula (I): wherein R1 and R2, which are the same or different, each represents a group that is selected from a hydrogen atom, a lower alkyl, lower alkenyl, lower alkoxy, lower alkoxycarbonyl, lower alkylcarbonyl, lower cycloalkyl or aryl group, and that may have a substituent, or R1 and R2 taken together are a methylene group that may have a substituent, or R1 and R2 taken together form a ring structure containing a nitrogen atom to which R1 and R2 are attached, the ring structure being a five-membered or six-membered hydrocarbon ring that may have one or two oxo groups, or a five-membered or six-membered heterocycle that may further contain a nitrogen atom; n is 0 or 1; when n is 0, R3 is a group that is selected from a hydrogen atom, a halogen atom, a lower alkyl, lower alkenyl, lower alkoxy, lower alkoxycarbonyl, lower alkylcarbonyl, lower cycloalkyl or aryl group, and that may have a substituent; and when n is 1, R3 and R4 are as defined for R1 and R2.
    • 一种非水二次电池,包括:正电极; 负极; 和非水电解液,所​​述非水电解质溶液含有通式(I)的化合物作为阻燃剂:其中相同或不同的R 1和R 2各自表示选自氢原子, 低级烷基,低级烯基,低级烷氧基,低级烷氧基羰基,低级烷基羰基,低级环烷基或芳基,并且可以具有取代基,或者R 1和R 2一起是可以具有取代基的亚甲基,或者R 1和R 2一起 形成含有R 1和R 2所连接的氮原子的环结构,所述环结构是可具有一个或两个氧代基的五元或六元烃环,或五元或六元杂环,其中 可以进一步含有氮原子; n为0或1; 当n为0时,R 3为选自氢原子,卤素原子,低级烷基,低级烯基,低级烷氧基,低级烷氧基羰基,低级烷基羰基,低级环烷基或芳基,可以具有取代基的基团。 当n为1时,R 3和R 4如对R 1和R 2所定义。