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21. 发明授权

US07181148B2 Image forming apparatus and device for determining the density and position of a toner pattern 失效
标题翻译：用于确定调色剂图案的浓度和位置的图像形成装置和装置
公开(公告)号：US07181148B2
公开(公告)日：2007-02-20
申请号：US10813076
申请日：2004-03-31
申请人： Tetsuya Sakai , Katsuyuki Hirata , Hironori Akashi , Tatsuya Isono , Takashi Harashima , Masaki Tanaka
发明人： Tetsuya Sakai , Katsuyuki Hirata , Hironori Akashi , Tatsuya Isono , Takashi Harashima , Masaki Tanaka
IPC分类号： G03G15/00
CPC分类号： G03G15/5058 , G03G15/0131 , G03G2215/00059 , G03G2215/00063 , G03G2215/0161 , G03G2215/0164
摘要： A detection device used in an image forming apparatus, comprises a light-emitting element which emits light towards a toner pattern formed on an image carrier, a first light-receiving element which detects the light reflected from the toner pattern and a second light-receiving element which detects the light reflected from the toner pattern in a fashion different from the first light-receiving element. The detection device calculates the amount of toner of the toner pattern based on the output values from the first and second light-receiving elements as well as the position of the toner pattern based on the output value from the first light-receiving element.
摘要翻译：一种用于图像形成装置的检测装置，包括朝向形成在图像载体上的调色剂图案发光的发光元件，检测从调色剂图案反射的光的第一光接收元件和第二受光元件元件，其以不同于第一光接收元件的方式检测从调色剂图案反射的光。检测装置基于来自第一和第二光接收元件的输出值以及基于来自第一光接收元件的输出值的调色剂图案的位置来计算调色剂图案的调色剂量。

22. 发明授权

US06550389B1 Printing method for printing on can barrel 失效
标题翻译：印刷方法可在罐头上进行印刷
公开(公告)号：US06550389B1
公开(公告)日：2003-04-22
申请号：US09626796
申请日：2000-07-26
申请人： Hiroaki Goto , Shigenobu Murakami , Yasuhiro Takasaki , Shinji Yamada , Tooru Shimomura , Katsuyuki Hirata , Shinya Otsuka
发明人： Hiroaki Goto , Shigenobu Murakami , Yasuhiro Takasaki , Shinji Yamada , Tooru Shimomura , Katsuyuki Hirata , Shinya Otsuka
IPC分类号： B41C4760
CPC分类号： B41M1/10 , B41F7/08 , B41F17/22 , B41M1/06 , B41M1/40
摘要： A printing method for printing an ink layer on a can barrel. The method includes picking-up a bright ink containing at least one bright pigment having an average particle size of from 5 to 25 &mgr;m selected from the group consisting of aluminum flake and fine particulate coated pearl pigment from an engraving roller, feeding the picked-up ink to a printing plate directly or via a rubber roller, and applying the ink on the printing plate to a can barrel via a blanket wheel.
摘要翻译：用于在罐筒上印刷油墨层的印刷方法。该方法包括从雕刻辊中取出含有至少一种平均粒度为5〜25μm的光亮性颜料的明亮油墨，所述亮度颜料选自铝片和细颗粒涂布的珠光颜料，供给拾取的油墨直接地或通过橡胶辊印刷到印刷板上，并且通过橡皮布轮将印刷板上的油墨施加到罐筒。

23. 发明授权

US5995248A Image forming device and method having MTF correction 失效
标题翻译：具有MTF校正的图像形成装置和方法
公开(公告)号：US5995248A
公开(公告)日：1999-11-30
申请号：US821364
申请日：1997-03-20
申请人： Kentro Katori , Yoshinobu Hada , Masahiro Kouzaki , Yukihiko Okuno , Katsuyuki Hirata
发明人： Kentro Katori , Yoshinobu Hada , Masahiro Kouzaki , Yukihiko Okuno , Katsuyuki Hirata
IPC分类号： H04N1/60 , G06T5/20 , H04N1/409 , H04N1/48 , H04N1/58 , H04N1/46
CPC分类号： H04N1/58 , H04N1/4092
摘要： A test pattern comprising a half-tone pattern portion and an edge pattern portion printed according to standard printing data is read by a CCD sensor. A pattern discriminator detects the positions of the half-tone pattern portion and the edge pattern portion. In accordance with a prescribed edge detection criteria using the primary differential data .DELTA.D of density determined by primary differential filters, the CPU determines whether the inputted image data correspond to a uniform density region or whether the inputted image data correspond to an edge portion. If the region discrimination result is different from the result of the pattern detection, the edge detection criteria are changed. The image data is then subjected to MTF correction, and conditions for smoothing or edge emphasizing are altered so that the difference between the corrected image data and the standard printing data remains within a allowable range.
摘要翻译：由CCD传感器读取包括根据标准打印数据打印的半色调图案部分和边缘图案部分的测试图案。模式鉴别器检测半色调图案部分和边缘图案部分的位置。根据使用由初级差分滤波器确定的浓度的一次差分数据DELTA D的规定边缘检测准则，CPU确定输入的图像数据是对应于均匀密度区域还是输入的图像数据对应于边缘部分。如果区域识别结果不同于模式检测的结果，则边缘检测准则被改变。然后对图像数据进行MTF校正，并且改变用于平滑或边缘强调的条件，使得校正图像数据和标准打印数据之间的差异保持在允许范围内。

24. 发明授权

US5966222A Image forming apparatus having a saturation correction unit 失效
标题翻译：具有饱和校正单元的图像形成装置
公开(公告)号：US5966222A
公开(公告)日：1999-10-12
申请号：US822354
申请日：1997-03-20
申请人： Katsuyuki Hirata , Yoshinobu Hada , Kentaro Katori , Yukihiko Okuno , Masahiro Kouzaki
发明人： Katsuyuki Hirata , Yoshinobu Hada , Kentaro Katori , Yukihiko Okuno , Masahiro Kouzaki
IPC分类号： B41J2/525 , G03G15/00 , G03G15/36 , G03G21/00 , G06T5/00 , H04N1/46 , H04N1/60
CPC分类号： H04N1/6027 , H04N1/6033
摘要： The individual pattern of each color of the standard pattern is printed on a copy being made, and when the copy is read by a scanner, the image data of the standard pattern are converted into color region signals in a uniform color space by an HVC converter and a C.multidot.H operation unit. In the case where the saturation of the image data has become lower than the standard saturation of the color region, saturation corrective coefficients are determined by a saturation corrective coefficient calculation unit. After the saturation coefficients have been determined for each color of the standard pattern, the image data of the original are read out, and the saturation corrective coefficients for the color region of the image data are used for saturation correction by a saturation correction processing unit. The image data which have been subjected to the saturation correction are reversely converted into the image data of each color by a reverse HVC converter. According to the reversely converted image data, an image is formed on a copying paper.
摘要翻译：标准图案的每种颜色的单独图案被印刷在正在进行的副本上，并且当通过扫描仪读取副本时，标准图案的图像数据由HVC转换器转换成均匀颜色空间中的颜色区域信号和一个CxH操作单元。在图像数据的饱和度变得低于彩色区域的标准饱和度的情况下，饱和校正系数由饱和度校正系数计算单元确定。在针对标准图案的每个颜色确定饱和系数之后，读出原稿的图像数据，并且通过饱和度校正处理单元将图像数据的颜色区域的饱和校正系数用于饱和度校正。已经进行饱和校正的图像数据被反向HVC转换器反向转换成每种颜色的图像数据。根据反向转换的图像数据，在复印纸上形成图像。

25. 发明授权

US5715067A Digital image forming apparatus and method with variable duty ratio 失效
标题翻译：具有可变占空比的数字图像形成装置和方法
公开(公告)号：US5715067A
公开(公告)日：1998-02-03
申请号：US610231
申请日：1996-03-04
申请人： Kentaro Katori , Masahiro Kouzaki , Yoshinobu Hada , Yukihiko Okuno , Katsuyuki Hirata
发明人： Kentaro Katori , Masahiro Kouzaki , Yoshinobu Hada , Yukihiko Okuno , Katsuyuki Hirata
IPC分类号： B41J2/44 , G03G15/04 , G03G15/043 , H04N1/40 , H04N1/29 , G01D9/42 , G01D15/14
CPC分类号： H04N1/40037
摘要： In a digital image forming apparatus, when a latent image is formed on a photoconductor, a light from a light source is emitted in a period of a duty ratio while modulated according to image data, and the latent image is developed and transferred onto a sheet of paper. The duty ratio, defined as a ratio of a light-emitting time of a light exposing the photoconductor to a period for exposing a dot, is changed in the same document according to dot information on the document such as an edge signal. In the modulation of the optical intensity, the light emission onto the photoconductor is performed with a duty ratio which may be set for each dot. Image portions formed with different duty ratios may exist at the same time in a reproduced image. For example, an edge portion in a document is reproduced at the duty ratio of 100% while a non-edge portion is reproduced at the duty ratio less than 100%.
摘要翻译：在数字图像形成装置中，当在感光体上形成潜像时，根据图像数据调制来自光源的光在占空比的周期中发射，并且潜像显影并转印到片材上的纸。定义为曝光光电导体的光的发光时间与曝光点的时间的比率的占空比根据诸如边缘信号的文档的点信息在相同的文档中改变。在光强度的调制中，以可以为每个点设置的占空比来执行光电导体上的发光。形成有不同占空比的图像部分可以在再现图像中同时存在。例如，以100％的占空比再现文档中的边缘部分，而以小于100％的占空比再现非边缘部分。

26. 发明授权

US5694223A Digital image forming apparatus which specifies a sensitivity characteristic of a photoconductor 失效
标题翻译：指定光电导体的灵敏度特性的数字图像形成装置
公开(公告)号：US5694223A
公开(公告)日：1997-12-02
申请号：US611718
申请日：1996-03-06
申请人： Kentaro Katori , Toshifumi Watanabe , Yukihiko Okuno , Masaki Tanaka , Hironobu Nakata , Katsuyuki Hirata
发明人： Kentaro Katori , Toshifumi Watanabe , Yukihiko Okuno , Masaki Tanaka , Hironobu Nakata , Katsuyuki Hirata
IPC分类号： G03G15/00 , H04N1/407 , H04N1/00 , G03F3/08 , G03G21/00 , H04N1/46
CPC分类号： G03G15/5041 , G03G15/5037 , H04N1/407 , G03G2215/00042
摘要： A printer control unit carries out a predetermined calculation based on the amount of adhering toner detected by an AIDC sensor and the surface potential of a photoconductor detected by a V sensor to correct the light emission intensity of a light source to prepare light emission characteristic data for .gamma. correction to obtain an optimal image. A .gamma. correcting unit corrects an image signal output from an image signal processing unit using the calculated light emission characteristic data for .gamma. correction to control the light source to emit light based on the corrected data. More specifically, since the .gamma. correction data is obtained by calculation, optimal .gamma. correction can always be carried out without a memory of a large capacity.
摘要翻译：打印机控制单元基于由AIDC传感器检测到的附着调色剂的量和由V传感器检测的感光体的表面电位进行预定的计算，以校正光源的发光强度，以准备用于伽马校正以获得最佳图像。伽马校正单元使用所计算的用于伽马校正的发光特性数据来校正从图像信号处理单元输出的图像信号，以基于校正数据控制光源发光。更具体地，由于通过计算获得伽马校正数据，所以可以总是在没有大容量的存储器的情况下执行最佳伽马校正。

27. 发明授权

US08804194B2 Image forming apparatus and image forming method 有权
标题翻译：图像形成装置及图像形成方法
公开(公告)号：US08804194B2
公开(公告)日：2014-08-12
申请号：US13846178
申请日：2013-03-18
申请人： Kazuhiro Saito , Hideaki Tanaka , Katsuyuki Hirata , Takashi Harashima
发明人： Kazuhiro Saito , Hideaki Tanaka , Katsuyuki Hirata , Takashi Harashima
IPC分类号： G06K1/00 , H04N1/60
CPC分类号： G06K15/14 , G03G15/6585 , G03G2215/0081 , H04N1/54
摘要： An image forming apparatus includes an image forming unit, a storage unit, an image processing unit and a control unit. The image processing unit (i) calculates a summed height of a color toner image formed on a sheet by summing up a height of the color toner image on the basis of input image data, (ii) calculates, on the basis of a target value for glossiness stored in the storage unit, a target total height of the color toner image and a clear toner image to realize the target value for glossiness, and (iii) calculates a height of the clear toner image by subtracting the summed height from the target total height. On the basis of the calculated height of the clear toner image, the control unit adjusts the height of the clear toner image formed on the sheet.
摘要翻译：图像形成装置包括图像形成单元，存储单元，图像处理单元和控制单元。图像处理单元（i）基于输入图像数据来计算在片材上形成的彩色调色剂图像的总和高度，并且基于输入图像数据累加彩色调色剂图像的高度，（ii）基于目标值存储在存储单元中的光泽度，彩色调色剂图像的目标总高度和透明调色剂图像以实现光泽度的目标值，以及（iii）通过从目标中减去总和高度来计算清除调色剂图像的高度总高度基于计算出的透明调色剂图像的高度，控制单元调节在片材上形成的透明调色剂图像的高度。

28. 发明授权

US07840148B2 Image forming apparatus and method for detecting separated state of transfer member 有权
标题翻译：用于检测转印部件的分离状态的图像形成装置和方法
公开(公告)号：US07840148B2
公开(公告)日：2010-11-23
申请号：US11704242
申请日：2007-02-09
申请人： Masaki Tanaka , Katsuyuki Hirata , Mitsuru Obara , Toshio Tsuboi , Tatsuya Isono
发明人： Masaki Tanaka , Katsuyuki Hirata , Mitsuru Obara , Toshio Tsuboi , Tatsuya Isono
IPC分类号： G03G15/16
CPC分类号： G03G15/168 , G03G15/0194 , G03G2215/1614
摘要： An image forming apparatus includes a secondary transfer roller that becomes a pressed state to make an intermediate transfer belt perform a transfer process and can move between the pressed state and a separated state, a press and separation driving device for driving the secondary transfer roller to become the pressed state and the separated state, a press and separation detecting device for detecting a pressed or separated state, and a voltage applying portion for applying a voltage between the intermediate transfer belt and the secondary transfer roller. The press and separation detecting device includes a resistor for detecting a current and a determination portion for determining a pressed or separated state in accordance with the detected current.
摘要翻译：图像形成装置包括：二次转印辊，其成为压制状态，以使中间转印带进行转印处理并且能够在压制状态和分离状态之间移动，用于驱动二次转印辊的压力分离驱动装置成为按压状态和分离状态，用于检测压制或分离状态的按压分离检测装置，以及用于在中间转印带和二次转印辊之间施加电压的电压施加部。按压分离检测装置包括用于检测电流的电阻器和用于根据检测到的电流确定按压或分离状态的确定部件。

29. 发明授权

US07149439B2 Method and device for estimating toner concentration and image forming apparatus equipped with such device 有权
公开(公告)号：US07149439B2
公开(公告)日：2006-12-12
申请号：US11008605
申请日：2004-12-10
申请人： Katsuyuki Hirata , Tetsuya Sakai , Tatsuya Isono , Hironori Akashi , Toshio Tsuboi , Takashi Harashima , Masaki Tanaka
发明人： Katsuyuki Hirata , Tetsuya Sakai , Tatsuya Isono , Hironori Akashi , Toshio Tsuboi , Takashi Harashima , Masaki Tanaka
IPC分类号： G03G15/08
CPC分类号： G03G15/5058 , G03G15/0849 , G03G2215/00037
摘要： A method and device for estimating toner concentration in a two-component developer consisting of toner and carrier for an electrophotographic image forming apparatus, and an image forming apparatus equipped with such device. The above method and device calculate an amount of toner charge from data detected by a transferred toner amount sensor, compensate the toner charge based on environmental humidity data and cumulative use period data of the image forming apparatus, and estimate toner concentration. The image forming apparatus equipped with the above device exerts control to predict toner consumption from the estimated toner concentration, supply toner to a developing unit according to the predicted toner consumption, and maintain the toner concentration in the developer at predetermined concentration.

30. 发明授权

US06388768B2 Image forming apparatus which excels in reproducibility of colors, fine lines and gradations even in a copy made from a copied image 失效
标题翻译：图像形成装置即使在由复印图像制成的复印件中也能够在颜色，细线和灰度的再现性方面表现出色
公开(公告)号：US06388768B2
公开(公告)日：2002-05-14
申请号：US09020281
申请日：1998-02-09
申请人： Yoshinobu Hada , Yukihiko Okuno , Masahiro Kouzaki , Kentaro Katori , Katsuyuki Hirata
发明人： Yoshinobu Hada , Yukihiko Okuno , Masahiro Kouzaki , Kentaro Katori , Katsuyuki Hirata
IPC分类号： B41B100
CPC分类号： H04N1/6033 , G03G15/01 , G03G2215/00042 , G03G2215/00063 , G03G2215/018 , H04N1/4078
摘要： An image forming apparatus for forming an image with few defects even when making a copy from a copied image. When forming an image, a standard pattern is formed outside the image forming area in accordance with standard pattern data for color correction. When reading the image together with the standard pattern formed above, the color correction conditions for the image data are modified in accordance with the comparison result between the read standard pattern data and the standard pattern data for color correction. Copying is then performed on a copying paper.
摘要翻译：一种图像形成装置，即使在从复印图像进行复制时也可以形成缺陷少的图像。当形成图像时，根据用于颜色校正的标准图案数据，在图像形成区域外部形成标准图案。当与上述形成的标准图案一起读取图像时，根据读取的标准图案数据和用于颜色校正的标准图案数据之间的比较结果来修改图像数据的颜色校正条件。然后在复印纸上进行复印。

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