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    • 2. 发明授权
    • Development apparatus having two developer bearers and two development chambers
    • 具有两个显影剂载体和两个显影室的显影装置
    • US08041269B2
    • 2011-10-18
    • US11757847
    • 2007-06-04
    • Tatsuya KuboYoshitaka FujinumaTakashi SuzukiSusumu TateyamaTsutomu NakagawaMasayoshi Nakayama
    • Tatsuya KuboYoshitaka FujinumaTakashi SuzukiSusumu TateyamaTsutomu NakagawaMasayoshi Nakayama
    • G03G15/09
    • G03G15/0815G03G2215/0648G03G2215/0838
    • A development apparatus includes a first developer chamber configured to store and supply the developer, a first developer bearer configured to convey the developer supplied from the first developer chamber to a first development domain, defined by a portion of the first developer bearer facing a latent image bearer, to develop the latent image, a second developer bearer configured to convey the developer passed through the first development domain to a second development domain, defined by a portion of the second developer bearer facing the latent image bearer, to develop the latent image, a second developer chamber configured to recover the developer passing through the second development domain and store the recovered developer, and a transfer prevention member provided between the second developer chamber and the second developer bearer to reduce a transfer of the developer from the second developer chamber to the second developer bearer.
    • 显影装置包括构造成存储和供应显影剂的第一显影剂室,构造成将从第一显影剂室供应的显影剂输送到第一显影区域的第一显影剂承载体,所述第一显影区域由面向潜像的第一显影剂载体的一部分 承载,以开发潜在图像;第二开发者承载,被配置为将通过第一开发域的开发者传达到由面向潜象承载的第二开发者承载的一部分限定的第二开发域,以展开潜像, 第二显影剂室被配置成回收通过第二显影区域并存储回收的显影剂的显影剂,以及设置在第二显影剂室和第二显影剂载体之间的转印防止构件,以减少显影剂从第二显影剂室转移到 第二个开发者承担。
    • 4. 发明授权
    • Image formation apparatus
    • 图像形成装置
    • US07792441B2
    • 2010-09-07
    • US11766352
    • 2007-06-21
    • Shinichi AkatsuTakashi SuzukiTsutomu NakagawaShigeru Tosa
    • Shinichi AkatsuTakashi SuzukiTsutomu NakagawaShigeru Tosa
    • G03G15/00
    • G03G15/161G03G15/1605G03G15/5041
    • An image formation apparatus is disclosed. The image formation apparatus includes a transfer effectiveness detector that further includes a computing unit for converting a sensor output voltage into a toner adhesion amount, and a transfer effectiveness detecting unit for obtaining transfer effectiveness by comparing a toner adhesion amount Td on a photo conductor with a toner adhesion amount Tb on a middle transfer object. Here, the toner adhesion amount Td is obtained by the computing unit converting an output of a photo conductor image detection unit, and the toner adhesion amount Tb is obtained by the computing unit converting an output of a middle transfer object image detection unit. When the transfer effectiveness detection unit determines that an abnormality is present in the transfer, whether the abnormality is due to decreased development capacity or due to decreased transfer effectiveness can be determined. If it is determined that the transfer effectiveness is less than a threshold value, a printing operation of the image formation apparatus is stopped given that the transfer effectiveness compensation is not possible.
    • 公开了一种图像形成装置。 图像形成装置包括转印有效性检测器,其还包括用于将传感器输出电压转换为调色剂附着量的计算单元,以及用于通过将光导体上的调色剂附着量Td与 中间转印体上的调色剂附着量Tb。 这里,调色剂附着量Td是通过计算单元转换光导体图像检测单元的输出获得的,调色剂附着量Tb是通过计算单元转换中间转印对象图像检测单元的输出而获得的。 当转移有效性检测单元确定转移中存在异常时,可以确定异常是由于显影能力降低还是由于转移有效性降低。 如果确定转移有效性小于阈值,则由于转移有效性补偿是不可能的,所以图像形成装置的打印操作被停止。
    • 5. 发明授权
    • Water-absorbent polymer and process for producing the same
    • 吸水性聚合物及其制造方法
    • US07683150B2
    • 2010-03-23
    • US11493860
    • 2006-07-27
    • Naonori HigashimotoTsutomu Nakagawa
    • Naonori HigashimotoTsutomu Nakagawa
    • C08F20/04
    • C08F220/06C08F222/385Y10S526/923
    • A water-absorbing resin has a polymer molecular chain in which 50 mol % or more of repeating units in the chain are carboxy group-containing units, wherein the carboxy group neutralization ratio in the central part of the resin is 60 mol % or more and the carboxy group neutralization ratio on the external surface of the resin is 50 mol % or less. A method for producing the water-absorbing resin comprises polymerizing a monomer solution to form a polymer, drying the resulting polymer, and heat-treating the dried polymer, wherein the monomer solution contains a mixture comprising an alkali metal salt of an unsaturated carboxylic acid and an ammonium salt thereof, the percentage of the ammonium salt being more than 50 mol % of the mixture, and further contains a condensation crosslinking agent.
    • 吸水性树脂具有聚合物分子链,链中的50重量%以上的重复单元是含羧基的单元,其中树脂中心部分的羧基中和率为60摩尔%以上, 树脂外表面的羧基中和率为50摩尔%以下。 制造吸水性树脂的方法包括聚合单体溶液以形成聚合物,干燥所得聚合物并热处理干燥的聚合物,其中单体溶液含有包含不饱和羧酸的碱金属盐和 其铵盐,铵盐的百分比大于混合物的50摩尔%,并且还含有缩合交联剂。
    • 8. 发明申请
    • Water-absorbent polymer and process for producing the same
    • 吸水性聚合物及其制造方法
    • US20080027180A1
    • 2008-01-31
    • US11493860
    • 2006-07-27
    • Naonori HigashimotoTsutomu Nakagawa
    • Naonori HigashimotoTsutomu Nakagawa
    • C08F120/10
    • C08F220/06C08F222/385Y10S526/923
    • A water-absorbing resin has a polymer molecular chain in which 50 mol % or more of repeating units in the chain are carboxy group-containing units, wherein the carboxy group neutralization ratio in the central part of the resin is 60 mol % or more and the carboxy group neutralization ratio on the external surface of the resin is 50 mol % or less. A method for producing the water-absorbing resin comprises polymerizing a monomer solution to form a polymer, drying the resulting polymer, and heat-treating the dried polymer, wherein the monomer solution contains a mixture comprising an alkali metal salt of an unsaturated carboxylic acid and an ammonium salt thereof, the percentage of the ammonium salt being more than 50 mol % of the mixture, and further contains a condensation crosslinking agent.
    • 吸水性树脂具有聚合物分子链,链中的50重量%以上的重复单元是含羧基的单元,其中树脂中心部分的羧基中和率为60摩尔%以上, 树脂外表面的羧基中和率为50摩尔%以下。 制造吸水性树脂的方法包括聚合单体溶液以形成聚合物,干燥所得聚合物并热处理干燥的聚合物,其中单体溶液含有包含不饱和羧酸的碱金属盐和 其铵盐,铵盐的百分比大于混合物的50摩尔%,并且还含有缩合交联剂。
    • 9. 发明申请
    • Color monitor white chromaticity measuring device
    • 彩色显示器白色色度测量装置
    • US20060164513A1
    • 2006-07-27
    • US10559854
    • 2004-06-11
    • Tohru SugiyamaTsutomu Nakagawa
    • Tohru SugiyamaTsutomu Nakagawa
    • H04N17/00
    • H04N9/73H04N17/02H04N17/04
    • The white chromaticity, in which the illumination environment is considered, is measured for each individual color monitor (100). A reference body (Q), comprising a perfect diffuser, is applied on the screen of the color monitor (100). By a test pattern display means (210), a test pattern (T) is displayed on the screen of the color monitor (100) based on tone values of the three primary colors R, G, and B that are stored in a tone value storage means (220). While fixing the tone value of the primary color R at 255, the tone values of the primary colors G and B are varied cyclically from 0 to 255 in a prescribed period by a tone value varying means (240). An operator inputs the result of comparing the color of the test pattern (T) and the color of the reference body (Q). When a comparison result indicating the matching of the two is input, a comparison result entering means (230) outputs an agreement signal. A measurement result output means (250) outputs, as the measurement results indicating the white chromaticity based on the reference body (Q), the tone values of the three primary colors R, G, and B that are stored in the tone value storage means (220) at the point at which the agreement signal is provided.
    • 对于每个单独的颜色监视器(100)测量其中考虑照明环境的白色色度。 包括完美漫射器的参考体(Q)被施加在彩色监视器(100)的屏幕上。 通过测试图形显示装置(210),基于以色调值存储的三原色R,G和B的色调值,在彩色监视器(100)的屏幕上显示测试图案(T) 存储装置(220)。 在将原色R的色调值固定为255时,原色G和B的色调值通过色调值改变装置(240)在规定的时间周期性地从0变化到255。 操作员输入比较测试图案(T)的颜色和参考体(Q)的颜色的结果。 当输入指示两者的匹配的比较结果时,比较结果输入装置(230)输出一致信号。 测量结果输出装置(250)作为指示基于参考体(Q)的白色色度的测量结果输出存储在色调值存储装置中的三原色R,G和B的色调值 (220)在提供协议信号的点处。
    • 10. 发明授权
    • Apparatus for color modification adapted to represent the pictorial image
    • 用于颜色修改的装置,用于表示图形图像
    • US4975769A
    • 1990-12-04
    • US320306
    • 1989-03-06
    • Masao AizuMitsuhiro HamashimaTsutomu NakagawaShunsuke MukasaTakashi UchiyamaHaruo Wakabayashi
    • Masao AizuMitsuhiro HamashimaTsutomu NakagawaShunsuke MukasaTakashi UchiyamaHaruo Wakabayashi
    • H04N1/60
    • H04N1/6016H04N1/6019
    • A pictorial image comprising pixels represented by a combination of density values in respect to first color components (R, G, B) is transformed to a pictorial image comprising pixels represented by combination of density values in respect to second color components (C, M, Y). In accordance with the first color modification method, an operation expressed as Q=.alpha.P+.beta. is implemented to an original density value P using two correction coefficients .alpha. and .beta. determined in advance to determine a density value Q after transformation. In addition, in accordance with the second color modification method, density values after transformation are determined by the calculation of the k-th degree masking equation using the k-th degree masking coefficients. At this time, a color cube is defined with respect to the first color components. The color cube thus defined is divided into an n number of blocks. The k-th degree masking coefficients are defined every respective blocks. Then, calculation of the k-th degree masking equation is performed using the k-th degree masking coefficients defined with respect to blocks involving points indicative of original density values within the color cube.
    • PCT No.PCT / JP88 / 00675 Sec。 371日期:1989年3月6日 102(e)日期1989年3月6日PCT Filed 1988年7月6日PCT Pub。 出版物WO89 / 00317 日期:1989年1月12日。包括由相对于第一颜色分量(R,G,B)的浓度值的组合表示的像素的图形图像被变换为包括由相对于第二颜色分量 颜色成分(C,M,Y)。 根据第一种颜色修正方法,使用预先确定的两个校正系数α和β将表示为Q =αP +β的操作实施为原始密度值P,以确定变换后的密度值Q。 此外,根据第二颜色修正方法,通过使用第k度掩蔽系数的k次掩蔽方程的计算来确定变换后的浓度值。 此时,相对于第一颜色分量定义着色立方体。 这样定义的颜色立方体被分成n个块。 每个相应块定义第k度掩蔽系数。 然后,使用针对指示色立方体内的原始浓度值的点的块定义的第k度掩蔽系数来执行第k度掩蔽方程的计算。