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1. 发明授权

US5966560A Image forming apparatus with enhanced pretransfer erasing 失效
标题翻译：具有增强的预转印擦除的图像形成装置
公开(公告)号：US5966560A
公开(公告)日：1999-10-12
申请号：US704210
申请日：1996-08-29
申请人： Hideaki Kodama , Yasuhiro Ohno , Kazuomi Sakatani , Makoto Takase
发明人： Hideaki Kodama , Yasuhiro Ohno , Kazuomi Sakatani , Makoto Takase
IPC分类号： G03G15/16 , G03G15/14
CPC分类号： G03G15/169 , G03G15/167
摘要： In an electrophotographic copying machine, image quality is improved by suppressing phenomena such as narrowing and thickening of a linear image or discharge noises in a photograph image due to anomalies on transfer of a toner image. For example, a document type is discriminated and when a transfer brush is used for transfer, transfer current and pretransfer erasing are controlled according to the type of document image. The pretransfer erasing is controlled in various following situations: Bi-level exposure method or multi-level exposure method, edge emphasis, photoelectric efficiency, the surface potential of the photoconductor, and position of a developing device.
摘要翻译：在电子照相复印机中，通过抑制由于调色剂图像的转印异常引起的线形图像的变窄和增厚或照片图像中的放电噪声等现象而提高了图像质量。例如，识别文档类型，并且当使用传送刷子进行传送时，根据文档图像的类型来控制传送电流和预传送擦除。在以下各种情况下控制预转印擦除：双层曝光方法或多层曝光方法，边缘强调，光电效率，感光体的表面电位和显影装置的位置。

2. 发明授权

US08090281B2 Image forming apparatus and tone correction method 有权
标题翻译：图像形成装置和色调校正方法
公开(公告)号：US08090281B2
公开(公告)日：2012-01-03
申请号：US12205381
申请日：2008-09-05
申请人： Soh Hirota , Tetsuya Sakai , Takashi Harashima , Kazuomi Sakatani , Masahiro Kouzaki
发明人： Soh Hirota , Tetsuya Sakai , Takashi Harashima , Kazuomi Sakatani , Masahiro Kouzaki
IPC分类号： G03G15/00
CPC分类号： G03G15/0131 , G03G15/5058 , G03G2215/00059 , G03G2215/0161
摘要： A tandem-type color image forming apparatus forms a toner pattern and toner markers on an intermediate transfer member. Tone levels in the toner pattern vary in a sub scanning direction, and the toner markers which are a same color with the tone pattern each oppose, in a main scanning direction, a different one of the tone level portions in the toner pattern, each tone level portion representing a different one of the tone levels. Positions of the toner markers in the sub scanning direction are determined to detect densities in the toner pattern corresponding to the determined positions. Tone of image data is corrected in an image formation based on a relationship between the densities and the tone levels corresponding to the determined positions.
摘要翻译：串联型彩色图像形成装置在中间转印部件上形成调色剂图案和调色剂标记。调色剂图案中的色调水平在副扫描方向上变化，并且与主色扫描方向相反的色调图案中相同颜色的调色剂标记在调色剂图案中的每个色调等级部分中的不同的一个，每个色调表示音调级别中的不同的级别部分。确定调色剂标记在副扫描方向上的位置以检测对应于确定位置的调色剂图案中的浓度。基于与确定的位置对应的密度和色阶之间的关系，在图像形成中校正图像数据的色调。

3. 发明授权

US08023839B2 Developing apparatus and image forming machine 有权
标题翻译：显影装置和成像机
公开(公告)号：US08023839B2
公开(公告)日：2011-09-20
申请号：US12395906
申请日：2009-03-02
申请人： Kazuomi Sakatani , Katsuyuki Hirata , Mitsuru Obara , Yoshinori Tsutsumi
发明人： Kazuomi Sakatani , Katsuyuki Hirata , Mitsuru Obara , Yoshinori Tsutsumi
IPC分类号： G03G15/08
CPC分类号： G03G15/0868 , G03G15/0853 , G03G15/0856 , G03G15/0887 , G03G15/0893
摘要： The developing apparatus, having stirring members for conveying and stirring developer-tank-contained developer and a developer holder, comprises a developer replenishing tank; a toner concentration detecting sensor; a trickle-type discharging mechanism; a developer amount estimating sensor; and a controller for controlling replenishment operation for replenishing the toner and the carrier for replenishment to the developer tank when the toner concentration is lower than a predetermined reference toner concentration, wherein the controller determines the amounts of the toner and the carrier to be replenished on the basis of the calculated toner concentration and the estimated amount of the developer.
摘要翻译：具有用于输送和搅拌含显影剂罐的显影剂和显影剂载体的搅拌构件的显影装置包括显影剂补充槽; 调色剂浓度检测传感器; 涓流式排放机构; 显影剂量估计传感器; 以及控制器，用于当调色剂浓度低于预定的参考调色剂浓度时，控制用于补充调色剂和载体以补充显影剂罐的补充操作，其中控制器确定调色剂和待补充的载体的量计算出的调色剂浓度的基础和显影剂的估计量。

4. 发明申请

US20090317105A1 DEVELOPING DEVICE AND IMAGE FORMING APPARATUS 审中-公开
标题翻译：开发设备和图像形成装置
公开(公告)号：US20090317105A1
公开(公告)日：2009-12-24
申请号：US12486027
申请日：2009-06-17
申请人： Yoshinori TSUTSUMI , Katsuyuki Hirata , Kazuomi Sakatani
发明人： Yoshinori TSUTSUMI , Katsuyuki Hirata , Kazuomi Sakatani
IPC分类号： G03G15/08
CPC分类号： G03G15/0877 , G03G15/0851 , G03G15/0853 , G03G15/0879 , G03G15/0893 , G03G2215/0607 , G03G2215/085
摘要： A developer is appropriately replenished at the desired toner concentration even with bare minimum stirring. A developer container (11) in which a developer containing toner and carrier is received, a developer replenishing container (23) in which a developer containing toner and carrier is received and which replenishes the developer container (11) with the developer, a replenishment path (25) which connects a upper portion of the developer container 11 with an lower portion of the developer replenishing container (23), stirring member (24) for stirring the developer in the developer replenishing container (23), toner concentration detecting member (27) for detecting the toner concentration of the developer in the replenishment path (25), and control unit (6) for stirring the developer in the developer replenishing container (23) by controlling driving of the stirring member (24) on the basis of the toner concentration detected by the toner concentration detecting member (27) are provided.
摘要翻译：即使在极少的搅拌下，显影剂也以所需的调色剂浓度适当地补充。一种其中容纳有调色剂和载体的显影剂的显影剂容器（11），容纳调色剂和载体的显影剂并且用显影剂补充显影剂容器（11）的显影剂补充容器（23），补充路径（25），其将显影剂容器11的上部与显影剂补充容器（23）的下部连接，用于搅拌显影剂补充容器（23）中的显影剂的搅拌构件（24），调色剂浓度检测构件），用于检测补充路径（25）中的显影剂的调色剂浓度;以及控制单元（6），用于通过控制搅拌构件（24）的驱动来搅拌显影剂补充容器（23）中的显影剂，提供由调色剂浓度检测部件（27）检测的调色剂浓度。

5. 发明申请

US20060029404A1 Image forming apparatus and developing unit 有权
标题翻译：成像设备和显影单元
公开(公告)号：US20060029404A1
公开(公告)日：2006-02-09
申请号：US10976774
申请日：2004-11-01
申请人： Soh Hirota , Masaki Tanaka , Masahiro Kouzaki , Kazuomi Sakatani , Mitsuru Obara
发明人： Soh Hirota , Masaki Tanaka , Masahiro Kouzaki , Kazuomi Sakatani , Mitsuru Obara
IPC分类号： G03G15/08
CPC分类号： G03G15/0856 , G03G15/086 , G03G15/0877
摘要： An electrophotographic image forming apparatus includes a developing device including a developer reservoir for accommodating a mixed developer. The mixed developer includes a plurality of types of toner having a generally identical hue and different reflection densities. The apparatus also includes a replenishment device having a plurality of toner containers each accommodating one of the plurality of types of toner for replenishing the plurality of types of toner to the developer reservoir; a first detector for detecting whether each of the toner containers is completely empty of toner; and a second detector for detecting whether the developer reservoir is nearly or completely empty of mixed developer. A controller controls the replenishment device and allows or prohibits a printing operation based on the detection result of the first and the second detectors.
摘要翻译：电子照相图像形成装置包括显影装置，显影装置包括用于容纳混合显影剂的显影剂储存器。混合显影剂包括具有大致相同的色调和不同反射浓度的多种类型的调色剂。该装置还包括具有多个调色剂容器的补充装置，每个调色剂容器各自容纳多种类型的调色剂中的一种，用于将多种类型的调色剂补充到显影剂储存器; 用于检测每个调色剂容器是否完全没有调色剂的第一检测器; 以及用于检测显影剂储存器是否几乎或完全没有混合显影剂的第二检测器。控制器控制补充装置，并且允许或禁止基于第一和第二检测器的检测结果的打印操作。

6. 发明授权

US5875041A Data processor 失效
公开(公告)号：US5875041A
公开(公告)日：1999-02-23
申请号：US591134
申请日：1996-01-25
申请人： Munehiro Nakatani , Hiroyuki Suzuki , Kazuomi Sakatani
发明人： Munehiro Nakatani , Hiroyuki Suzuki , Kazuomi Sakatani
IPC分类号： G06T9/00 , H04N1/40 , H04N1/41 , H04N1/413 , H04N7/26 , H04N7/30
CPC分类号： H04N1/41 , H04N1/40062 , H04N1/413 , H04N19/126 , H04N19/14 , H04N19/17 , H04N19/176 , H04N19/42 , H04N19/48 , H04N19/60 , H04N19/124 , H04N19/132 , H04N19/146 , H04N19/149 , H04N19/15 , H04N19/30
摘要： In a data processor, in order to perform coding efficiently, image data of a prescribed pixel matrix is subjected to orthogonal transformation to coefficient data. Obtained coefficient data is quantized with a first quantization table for character image, and they are also quantized with a second quantization table for half-tone image. Then, the image data is discriminated to be a character image data or a half-tone image data according to the two quantization data. Then, quantization data in correspondence to the discrimination is subjected to entropy coding. In a different data processor, in order to discriminate a kind of image in a processing block fast and correctly, image data are divided into first processing blocks of m*m pixel matrices and second processing blocks of M*M pixel matrices wherein M>m. For example, m=8 and M=16. A second processing block includes one of first processing blocks and adjacent pixels around it. Image data in a first processing block and image dat in a second processing block including the first processing block are subjected to orthogonal transform to send coefficient data, respectively. It is discriminated according to the coefficient data of the second processing block if the image is a character image, a dot image or a half-tone image to select an appropriate quantization table. Then, image data of the first processing block is quantized according to the selected quantization table and quantized data are coded. In a further data processor, in order to discriminate a dot image in a processing block, two discrimination windows are provided, and a first of the windows consists of coefficient data around the DC component while a second consists of the other data. First, orthogonal transform coefficients of image data in a processing block are calculated, and maximum of absolute values in the two windows are obtained. An image is discriminated to be a dot image if the maximum of the first window is larger than that of the second and the former is larger than a prescribed threshold value.

7. 发明授权

US08964246B2 Image forming apparatus, image forming method, image density measuring apparatus, and image density measuring method 有权
标题翻译：图像形成装置，图像形成方法，图像浓度测量装置和图像浓度测量方法
公开(公告)号：US08964246B2
公开(公告)日：2015-02-24
申请号：US13221672
申请日：2011-08-30
申请人： Kazuomi Sakatani
发明人： Kazuomi Sakatani
IPC分类号： H04N1/60 , G03G15/00 , G09G5/02 , B41J29/393 , H04N9/04 , H04N1/00 , G03G15/01
CPC分类号： H04N1/00002 , G03G15/0131 , G03G15/5062 , G03G2215/0161 , H04N1/00015 , H04N1/00023 , H04N1/00031 , H04N1/00045 , H04N1/00053 , H04N1/00063 , H04N1/00068 , H04N1/00087 , H04N1/0009 , H04N1/6033 , H04N2201/0006 , H04N2201/044
摘要： An image forming apparatus includes a control section extracting a color composition of each color ranging from a first to an nth color from input image data, on the color composition of an mth color, the m being 1 to n−1, performing a first and a second gamma corrections correcting a gradation of the color composition respectively based on a gamma curve for the mth color to obtain a first corrected gradation value, and based on a gamma curve for an (m+1)th color to obtain a second corrected gradation value, and interpolating the first and the second corrected gradation values to determine an output value for the color composition, on the color composition of the nth color, correcting a gradation of the color composition based on a gamma curve for the nth color to obtain an output value for the color composition.
摘要翻译：一种图像形成装置，包括控制部，从输入图像数据中提取从第一至第n颜色的颜色的颜色组合，第m色的颜色组成，m为1至n-1，执行第一和第第二伽马校正分别基于第m色的伽马曲线校正色彩构图的灰度以获得第一校正灰度值，并且基于第（m + 1）色的伽马曲线以获得第二校正灰度值，并且内插第一和第二校正灰度值以确定颜色组合的输出值，关于第n色的颜色组成，基于第n种颜色的伽马曲线校正颜色组合的灰度，以获得第颜色组合的输出值。

8. 发明授权

US08625179B2 Color adjustment method and image forming system using gamma curve associating densities of patches from different printers 有权
标题翻译：使用伽马曲线的颜色调整方法和图像形成系统将来自不同打印机的补丁的密度相关联
公开(公告)号：US08625179B2
公开(公告)日：2014-01-07
申请号：US13371973
申请日：2012-02-13
申请人： Kazuomi Sakatani
发明人： Kazuomi Sakatani
IPC分类号： H04N1/60 , H04N1/00
CPC分类号： H04N1/6052 , H04N1/00015 , H04N1/00023 , H04N1/00034 , H04N1/60
摘要： Disclosed is a color adjustment method for each of image forming apparatuses, including: a gradation pattern creation step of forming a gradation pattern image including patches different in gradation for each of colors in n pieces of coloring materials; a density detection step of detecting densities of the respective patches, and obtaining density information; a gamma curve creation step of associating the density information of the respective patches in a second image forming apparatus with that in the first, and creating a gamma curve correcting a gradation of received image data so as to obtain densities of the respective patches in the first image forming apparatus; and a color adjustment step of extracting respective color components, deciding output values based on the gamma curve corresponding to the second image forming apparatus, creating output image data, and forming an image on a sheet in the second image forming apparatus.
摘要翻译：公开了一种图像形成装置的颜色调整方法，包括：灰度图案生成步骤，形成包含n个着色材料中的每种颜色的灰度不同的灰度图案图像; 浓度检测步骤，检测各个贴片的浓度，并获得浓度信息; 伽马曲线创建步骤，用于将第二图像形成装置中的各个片段的密度信息与第一图像形成装置中的各个片段的密度信息相关联，并且创建修正接收到的图像数据的灰度的伽马曲线，以便获得第一图像中的各个片段的密度图像形成装置; 以及颜色调整步骤，提取各个颜色分量，基于与第二图像形成装置相对应的伽马曲线来确定输出值，产生输出图像数据，以及在第二图像形成装置中的片材上形成图像。

9. 发明申请

US20070279695A1 Image forming device and image forming method 有权
标题翻译：图像形成装置和图像形成方法
公开(公告)号：US20070279695A1
公开(公告)日：2007-12-06
申请号：US11806406
申请日：2007-05-31
申请人： Masahiro Kouzaki , Tetsuya Sakai , Kazuomi Sakatani , Soh Hirota , Takashi Harashima
发明人： Masahiro Kouzaki , Tetsuya Sakai , Kazuomi Sakatani , Soh Hirota , Takashi Harashima
IPC分类号： G06K15/00
CPC分类号： G06K15/02 , G06K15/027 , H04N1/405 , H04N1/4092
摘要： An image forming device for forming an image on an image carrier using a different grayscale reproduction method for each of two or more different attributes contained in portions of the image. The image forming device forms a different standard pattern in one-to-one correspondence with each different attribute contained in the image portions, using a grayscale reproduction method used for reproducing image portions containing the attribute, detects density of each standard pattern formed by the standard pattern forming unit, sets, for each different attribute, a condition for correcting grayscale of the image portions containing the attribute, in accordance with the detected density, and corrects grayscale of the image portions in accordance with each condition set by the correction condition setting unit.
摘要翻译：一种图像形成装置，用于使用不同的灰度再现方法在图像载体中形成图像的图像中包含在图像的部分中的两个或多个不同属性中的每一个。图像形成装置使用用于再现包含该属性的图像部分的灰度再现方法，与包含在图像部分中的每个不同属性一一对应地形成不同的标准图案，检测由标准形成的每个标准图案的浓度图案形成单元，针对每个不同的属性设置根据检测到的浓度校正包含该属性的图像部分的灰度的条件，并且根据校正条件设置单元设置的每个条件校正图像部分的灰度。

10. 发明授权

US07298917B2 Image processing program product and device for executing Retinex processing 失效
标题翻译：用于执行Retinex处理的图像处理程序产品和设备
公开(公告)号：US07298917B2
公开(公告)日：2007-11-20
申请号：US10372954
申请日：2003-02-26
申请人： Kazuomi Sakatani , Tetsuya Itoh , Yoichi Miyake , Norimichi Tsumura
发明人： Kazuomi Sakatani , Tetsuya Itoh , Yoichi Miyake , Norimichi Tsumura
IPC分类号： G06K9/40 , G06K9/32 , G06K9/28
CPC分类号： G06T5/008 , G06T5/20 , G06T2207/10024
摘要： An image not subjected to color correction, gamma correction, MTF correction and others is used as an image to be subjected to Retinex image processing. Thus, a RAW image prepared only by converting an electric signal of a CCD image sensor by an A/D converter into a digital form is used as an image to be subjected to the Retinex processing. Predetermined gamma correction is performed after the Retinex processing. Thereby, Retinex algorithm substantially modeling functions of a retina and a cortex of a living body exhibits its original performance. The resolution of the original image is lowered, and processing is performed on an image thus produced to produce a blurred image. Then, the resolution of the blurred image is restored to the same resolution as that of the original image, and the Retinex processing is performed. Thereby, the Retinex processing can be performed without increasing memory consumption and extremely lowering an operation speed.
摘要翻译：将不进行颜色校正，伽马校正，MTF校正等的图像用作要进行Retinex图像处理的图像。因此，将通过将A / D转换器的CCD图像传感器的电信号转换成数字形式的RAW图像被用作要进行Retinex处理的图像。 Retinex处理后执行预定伽玛校正。因此，Retinex算法基本上对生物体的视网膜和皮层的功能进行建模表现出其原始性能。原始图像的分辨率降低，并且对由此产生的图像执行处理以产生模糊图像。然后，模糊图像的分辨率恢复到与原始图像相同的分辨率，并且执行Retinex处理。因此，可以在不增加存储器消耗并且极大地降低操作速度的情况下执行Retinex处理。

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