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81. 发明授权

US5280310A Ink jet recording apparatus and method capable of performing high-speed recording by controlling the meniscus of ink in discharging orifices 失效
标题翻译：喷墨记录装置和方法能够通过控制喷墨口中墨水的液面而进行高速记录
公开(公告)号：US5280310A
公开(公告)日：1994-01-18
申请号：US872924
申请日：1992-04-23
申请人： Naoji Otsuka , Kentaro Yano , Kiichiro Takahashi , Atsushi Arai , Hitoshi Nishikori , Osamu Iwasaki
发明人： Naoji Otsuka , Kentaro Yano , Kiichiro Takahashi , Atsushi Arai , Hitoshi Nishikori , Osamu Iwasaki
IPC分类号： B41J2/05 , B41J2/01
CPC分类号： B41J2/04525 , B41J2/04528 , B41J2/04543 , B41J2/04573 , B41J2/0458 , B41J2002/14362
摘要： An ink is ejected at the same timing from ejection orifices in a number corresponding to an ink quantity 7% or less of an ink quantity ejected from all the ejection enabled ejection orifices of a plurality of ejection orifices of a recording head, and the ink ejection period from all the ejection enabled ejection orifices is set to be 70% or more of the driving period. Since the quantity of an ink ejected per unit time is minimized, and the negative pressure level generated in a common ink chamber can be set to be closest to normal pressure, the amplitude of a refill oscillation is minimized to stabilize ejection, and the driving frequency can be further increased.
摘要翻译：在与喷墨孔相同的时刻，墨水以对应于从记录头的多个喷射口的所有喷射口喷出口喷出的墨量的7％以下的墨量喷射，喷墨所有喷射启动喷射口的时间段被设定为驾驶时间的70％以上。由于每单位时间喷射的墨量最小化，并且可以将普通墨水室中产生的负压水平设定为最接近正常压力，因此使再充电振动的振幅最小化以稳定喷射，驱动频率可以进一步增加。

82. 发明授权

US06488350B2 Ink jet printing apparatus and ink jet printing method 失效
标题翻译：喷墨打印设备和喷墨打印方法
公开(公告)号：US06488350B2
公开(公告)日：2002-12-03
申请号：US09422353
申请日：1999-10-21
申请人： Osamu Iwasaki , Naoji Otsuka , Kaneji Yamada , Minoru Teshigawara
发明人： Osamu Iwasaki , Naoji Otsuka , Kaneji Yamada , Minoru Teshigawara
IPC分类号： B41J2938
CPC分类号： B41J2/04503 , B41J2/04528 , B41J2/04533 , B41J2/04543 , B41J2/04565 , B41J2/04573 , B41J2/0458 , B41J2/04588 , B41J2/04598
摘要： The present invention reduces a difference in speed between a main drop section and a tailing section of a ejected ink droplet by heating a front heater and a rear heater provided for one nozzle with a predetermined time lag and thus, the ink dot formed from the main drop section and the tailing section on a printing medium can be more approximate to a circle. Thereby, it is possible to prevent print quality from being degraded by the tailing section separated from the main drop section of the ink droplet ejected from an ink jet printing apparatus of serial type.
摘要翻译：本发明通过以预定的时间延迟加热设置在一个喷嘴上的前加热器和后加热器，从而降低喷墨墨滴的主液滴部分和拖尾部分之间的速度差，因此，由主要部件形成的墨点打印介质上的拖放部分和拖尾部分可以更接近于一个圆形。由此，可以防止打印质量与从串联型喷墨打印装置喷射的墨滴的主液滴部分分离的拖尾部分劣化。

83. 发明授权

US07889394B2 Image processing apparatus and method 失效
标题翻译：图像处理装置及方法
公开(公告)号：US07889394B2
公开(公告)日：2011-02-15
申请号：US11745000
申请日：2007-05-07
申请人： Osamu Iwasaki , Naoji Otsuka , Hitoshi Nishikori
发明人： Osamu Iwasaki , Naoji Otsuka , Hitoshi Nishikori
IPC分类号： H04N1/40 , G06K15/00
CPC分类号： H04N1/52 , H04N1/58
摘要： An image processing apparatus for processing multilevel image data including values of respective color components includes an adding unit configured to add quantization errors to the respective values of the color components of a target pixel, an output determination unit configured to perform quantization to determine output values of the respective color components of the target pixel based on a combination of the values of the respective color components to which the quantization errors are added, and an error calculation unit configured to calculate quantization errors of the respective color components of the target pixel based on the output values of the respective color components and the values of the respective color components to which the quantization errors are added. In addition, a distribution weight determination unit is configured to determine distribution weights for the respective color components in accordance with a combination of the values of the respective color components of the target pixel, and an error diffusion unit is configured to distribute the calculated quantization errors of the respective color components of the target pixel to values of the respective color components of neighboring pixels in accordance with the determined distribution weights.
摘要翻译：一种图像处理装置，用于处理包括各颜色分量的多值图像数据，包括：加法单元，被配置为向目标像素的颜色分量的各个值加上量化误差;输出确定单元，被配置为执行量化以确定输出值基于添加了量化误差的各个颜色成分的值的组合的目标像素的各个颜色分量，以及错误计算单元，被配置为基于所述目标像素的各个颜色分量的量化误差来计算目标像素的各个颜色分量各颜色分量的输出值和相加颜色分量的值相加。另外，分发权重确定单元被配置为根据目标像素的各个颜色分量的值的组合来确定各个颜色分量的分配权重，并且误差扩散单元被配置为分配所计算的量化误差根据确定的分布权重将目标像素的各个颜色分量的各个颜色分量的值分配给相邻像素的各个颜色分量的值。

84. 发明授权

US07144096B2 Inkjet recording apparatus for controlling recovery operation by managing cap-open state and recovery control method 有权
标题翻译：喷墨记录装置，用于通过管理开盖状态和恢复控制方法来控制恢复操作
公开(公告)号：US07144096B2
公开(公告)日：2006-12-05
申请号：US11131374
申请日：2005-05-18
申请人： Satoshi Seki , Naoji Otsuka , Osamu Iwasaki , Minoru Teshigawara , Yoshinori Nakagawa
发明人： Satoshi Seki , Naoji Otsuka , Osamu Iwasaki , Minoru Teshigawara , Yoshinori Nakagawa
IPC分类号： B41J2/165
CPC分类号： B41J2/16511
摘要： An inkjet recording apparatus suppresses defective ejection while reducing a consumed ink amount. In the apparatus, a cap-open period, during which a cap member does not cap ejection ports of a recording head of the apparatus, is measured, and a recovery operation executed by a recovery unit is controlled based on a cumulated cap-open period. With the above arrangement, there can be solved a problem that the ink ejecting state of the recording head is deteriorated depending on a recording operation because a cap-open state, in which the cap member does not cap the ejection ports of the recording head, continues while the inkjet recording apparatus executes the recording operation, thereby the reliability of the inkjet recording apparatus can be improved.
摘要翻译：喷墨记录装置在减少消耗的墨量的同时抑制喷射不良。在该装置中，测量盖帽构件不覆盖设备的记录头的喷射口的盖打开时段，并且基于累积盖帽打开周期来控制由恢复单元执行的恢复操作。通过上述结构，可以解决记录头的喷墨状态由于记录头的喷射口盖住盖帽状态而导致的记录操作的问题，在喷墨记录装置执行记录操作的同时继续，从而可以提高喷墨记录装置的可靠性。

85. 发明授权

US07315401B2 Quantization apparatus and method, and inkjet printing apparatus using the same 失效
标题翻译：量化装置和方法，以及使用其的喷墨打印装置
公开(公告)号：US07315401B2
公开(公告)日：2008-01-01
申请号：US10417088
申请日：2003-04-17
申请人： Osamu Iwasaki , Naoji Otsuka , Minoru Teshigawara
发明人： Osamu Iwasaki , Naoji Otsuka , Minoru Teshigawara
IPC分类号： H04N1/40 , G06K9/38
CPC分类号： H04N1/4057
摘要： It is an object of this invention to provide a ternary or higher-order quantization method which avoids close gathering of pixels at a first output level. First and second threshold values Lth1 and Lth2 for ternarization and output values 0 (blank), 1, and 2 as converted output values are set to have a relationship of output value of 0 (blank)
摘要翻译：本发明的目的是提供一种三元或更高阶量化方法，其避免了在第一输出电平下的像素的紧密收集。转换后的输出值的第1和第2阈值Lth1，Lth2和输出值0（空白），1，2被设定为输出值0（空白）<第1阈值Lth1 <秒阈值Lth 2 <1的输出值<输出值2.这样，当输入像素值为中间值时，这可以防止量化误差变为0，并且防止仅输出值为1的像素的连续输出。当该图像被打印，对应于输出值1的小墨点不容易连续打印。这提高了图像质量。

86. 发明申请

US20050206674A1 Inkjet recording apparatus for controlling recovery operation by managing cap-open state and recovery control method 有权
标题翻译：喷墨记录装置，用于通过管理开盖状态和恢复控制方法来控制恢复操作
公开(公告)号：US20050206674A1
公开(公告)日：2005-09-22
申请号：US11131374
申请日：2005-05-18
申请人： Satoshi Seki , Naoji Otsuka , Osamu Iwasaki , Minoru Teshigawara , Yoshinori Nakagawa
发明人： Satoshi Seki , Naoji Otsuka , Osamu Iwasaki , Minoru Teshigawara , Yoshinori Nakagawa
IPC分类号： B41J2/165 , B41J2/175 , B41J2/18 , B41J2/185
CPC分类号： B41J2/16511
摘要： An inkjet recording apparatus suppresses defective ejection while reducing a consumed ink amount. In the apparatus, a cap-open period, during which a cap member does not cap ejection ports of a recording head of the apparatus, is measured, and a recovery operation executed by a recovery unit is controlled based on a cumulated cap-open period. With the above arrangement, there can be solved a problem that the ink ejecting state of the recording head is deteriorated depending on a recording operation because a cap-open state, in which the cap member does not cap the ejection ports of the recording head, continues while the inkjet recording apparatus executes the recording operation, thereby the reliability of the inkjet recording apparatus can be improved.
摘要翻译：喷墨记录装置在减少消耗的墨量的同时抑制喷射不良。在该装置中，测量盖帽构件不覆盖设备的记录头的喷射口的盖打开时段，并且基于累积盖帽打开周期来控制由恢复单元执行的恢复操作。通过上述结构，可以解决记录头的喷墨状态由于记录头的喷射口盖住盖帽状态而导致的记录操作的问题，在喷墨记录装置执行记录操作的同时继续，从而可以提高喷墨记录装置的可靠性。

87. 发明授权

US06994416B2 Inkjet recording apparatus for controlling recovery operation by managing cap-open state and recovery control method 失效
公开(公告)号：US06994416B2
公开(公告)日：2006-02-07
申请号：US10647272
申请日：2003-08-26
申请人： Satoshi Seki , Naoji Otsuka , Osamu Iwasaki , Minoru Teshigawara , Yoshinori Nakagawa
发明人： Satoshi Seki , Naoji Otsuka , Osamu Iwasaki , Minoru Teshigawara , Yoshinori Nakagawa
IPC分类号： B41J29/393 , B41J2/165
CPC分类号： B41J2/16511
摘要： An inkjet recording apparatus suppresses defective ejection while reducing a consumed ink amount. In the apparatus, a cap-open period, during which a cap member does not cap ejection ports of a recording head of the apparatus, is measured, and a recovery operation executed by a recovery unit is controlled based on a cumulated cap-open period. With the above arrangement, there can be solved a problem that the ink ejecting state of the recording head is deteriorated depending on a recording operation because a cap-open state, in which the cap member does not cap the ejection ports of the recording head, continues while the inkjet recording apparatus executes the recording operation, thereby the reliability of the inkjet recording apparatus can be improved.

88. 发明授权

US07265874B2 Image processing apparatus and method 失效
标题翻译：图像处理装置及方法
公开(公告)号：US07265874B2
公开(公告)日：2007-09-04
申请号：US10410347
申请日：2003-04-10
申请人： Osamu Iwasaki , Naoji Otsuka , Hitoshi Nishikori
发明人： Osamu Iwasaki , Naoji Otsuka , Hitoshi Nishikori
IPC分类号： H04N1/40 , G06K15/00
CPC分类号： H04N1/52 , H04N1/58
摘要： An image processing apparatus processes multivalued color image data that includes a plurality of color components. The apparatus includes an adding unit to add per-color-component quantization error values from a neighboring pixel to respective ones of a plurality of color components included in a pixel of interest, and a quantization unit to correlate a sum of the values of each of the color components to which the error value has been added by the adding unit to a sum of values after conversion, and deciding the value of each color component after conversion upon distributing the sum of pixel values after the conversion in accordance with the ratio of each of the color components before conversion. In addition, a coefficient decision unit decides diffusion coefficients, which diffuse quantization error to neighboring pixels, based upon the value of each of the plurality of color components included in the pixel of interest.
摘要翻译：图像处理装置处理包括多个颜色分量的多值彩色图像数据。该装置包括：加法单元，用于将来自相邻像素的每颜色分量量化误差值相加到感兴趣像素中包括的多个颜色分量中的各个颜色分量;以及量化单元，用于将每个颜色分量量化误差值的和由加法单位将误差值添加到转换后的值之和的颜色分量，并且根据转换后的像素值的和分配转换后的每个颜色分量的值，并根据每个颜色分量的颜色成分转换前。此外，系数判定单元基于包括在感兴趣像素中的多个颜色成分中的每一个的值来决定将量化误差扩散到相邻像素的扩散系数。

89. 发明授权

US07032991B1 Two-way print apparatus and print method 失效
标题翻译：双向打印设备和打印方式
公开(公告)号：US07032991B1
公开(公告)日：2006-04-25
申请号：US09675165
申请日：2000-09-29
申请人： Naoji Otsuka , Osamu Iwasaki , Kaneji Yamada , Toshiyuki Chikuma
发明人： Naoji Otsuka , Osamu Iwasaki , Kaneji Yamada , Toshiyuki Chikuma
IPC分类号： B41J2/21 , B41J2/15 , B41J2/145
CPC分类号： B41J19/147
摘要： Two sets of recording heads for applying ink of cyan (C), magenta (M), and yellow (Y) are arranged in symmetry in a scanning direction and orders of colors C and M ejected onto a pixel of a secondary color are set to symmetric orders (C→M and M→C). This makes the application orders of ink symmetric in each pixel of secondary color and thus there is no difference between application orders in formation of the pixel by either forward or backward scanning, whereby occurrence of uneven color due to the application orders of ink can be reduced even in execution of two-way color print.
摘要翻译：用于施加青色（C），品红色（M）和黄色（Y）的油墨的两组记录头在扫描方向上对称地布置，并且喷射到二次色彩的像素上的颜色C和M的数量被设置为对称阶（C> M和M→C）。这使得在每个像素像素中油墨的应用顺序是对称的，因此在通过正向或反向扫描形成像素的应用顺序之间没有差别，由此可以减少由于油墨的施加量而产生的不均匀颜色即使执行双向彩色打印。

90. 发明申请

US20070206245A1 IMAGE PROCESSING APPARATUS AND METHOD 失效
标题翻译：图像处理装置和方法
公开(公告)号：US20070206245A1
公开(公告)日：2007-09-06
申请号：US11745000
申请日：2007-05-07
申请人： Osamu Iwasaki , Naoji Otsuka , Hitoshi Nishikori
发明人： Osamu Iwasaki , Naoji Otsuka , Hitoshi Nishikori
IPC分类号： H04N1/46
CPC分类号： H04N1/52 , H04N1/58
摘要： Disclosed are an image processing apparatus and method for the purpose of preventing overlapping of dots between two colors in low-density areas in color pseudo-grayscale processing, thereby obtaining excellent placement of the dots of each color. When a color image is binarized, an error is added to a respective one of color components (I0,I1), after which output decision means (2) decides an output value in accordance with the value of the sum in such a manner that the sum of pixel values after conversion will be rendered constant. Error calculation means (3-0, 3-1) calculate differences between pixel values before and after binarization as errors, and error diffusion means (9-0, 9-1) calculate values to be diffused to a neighboring pixel. Weighting coefficients used at such time are decided in accordance with combinations of values of the color components (I0,I1) of pixel values in the original image. The output value decided by the output decision means (2) is printed out by a printer or the like.
摘要翻译：公开了一种图像处理装置和方法，其目的是防止在彩色伪灰度处理中的低密度区域中的两种颜色之间的点重叠，从而获得每种颜色的点的优异布置。当彩色图像被二值化时，将错误添加到相应的一个颜色分量（I <0>，1 <1>）中，之后输出判定装置（2）决定输出值根据总和的值，使得转换后的像素值的总和将变为恒定。误差计算装置（3 - 0，3 - 1）计算二值化之前和之后的像素值之间的差异作为误差，误差扩散装置（9 - 0,9 - 1）计算要扩散到相邻像素的值。根据原始图像中的像素值的颜色分量（I SUB> 0，I 1> 1）的值的组合来确定在这种时间使用的加权系数。由输出判定装置（2）决定的输出值由打印机等打印出来。

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