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1. 发明申请

US20140125737A1 PRINT HEAD AND INKJET PRINTING APPARATUS 有权
标题翻译：打印头和喷墨打印设备
公开(公告)号：US20140125737A1
公开(公告)日：2014-05-08
申请号：US14124870
申请日：2012-08-10
申请人： Keiji Tomizawa , Masaki Oikawa
发明人： Keiji Tomizawa , Masaki Oikawa
IPC分类号： B41J2/14
CPC分类号： B41J2/14 , B41J2/1404 , B41J2002/14169 , B41J2002/14475
摘要： The print head includes an energy generating element, a chamber for accommodating liquid, and an ejection opening arranged in a position corresponding to the energy generating element. The ejection opening includes at least one projection projecting inside of the ejection opening, the ejection opening having a first region between a front end of the projection and an inner wall of the ejection opening positioned at the shortest distance from the front end, and second regions positioned in both sides of the projection and different from the first region, and when a width of the projection at a chamber-side opening face is represented as a1 and the maximum width of the projection is represented as a2, a relation a1
摘要翻译：打印头包括能量产生元件，用于容纳液体的腔室和布置在与能量产生元件相对应的位置的喷射口。喷射口包括突出在喷射口内部的至少一个突出部，该喷射口具有位于该突起的前端和该喷射口的内壁之间的第一区域，该第一区域位于距前端最短的距离处，第二区域位于突起的两侧并且不同于第一区域，并且当室侧开口面处的突起的宽度被表示为a1并且突起的最大宽度表示为a2时，关系a1

2. 发明申请

US20110084999A1 INKJET PRINT APPARATUS AND INKJET PRINT METHOD 有权
标题翻译：喷墨打印设备和喷墨打印方法
公开(公告)号：US20110084999A1
公开(公告)日：2011-04-14
申请号：US12897310
申请日：2010-10-04
申请人： Masayuki Kyoshima , Masaki Oikawa , Keiji Tomizawa
发明人： Masayuki Kyoshima , Masaki Oikawa , Keiji Tomizawa
IPC分类号： B41J29/38
CPC分类号： B41J2/2125 , B41J2/2132 , G06K15/107
摘要： An objective is to provide an inkjet print apparatus and an inkjet print method capable of a print without concentration unevenness. To achieve the objective, in a multiple-pass print using mask patterns each having low-print-percentage areas and high-print-percentage areas, the print-percentage difference between high-print-percentage areas and low-print-percentage areas is cancelled out in left-edge and right-edge parts of an image to be printed.
摘要翻译：目的是提供能够进行无浓度不均匀性的打印的喷墨打印装置和喷墨打印方法。为了实现这一目标，在使用具有低打印百分比区域和高打印百分比区域的掩模图案的多次打印中，高打印百分比区域和低打印百分比区域之间的打印百分比差为在要打印的图像的左边缘和右边缘部分中被取消。

3. 发明申请

US20100328384A1 INKJET PRINTING APPARATUS AND INKJET PRINTING METHOD 有权
标题翻译：喷墨打印设备和喷墨打印方法
公开(公告)号：US20100328384A1
公开(公告)日：2010-12-30
申请号：US12816732
申请日：2010-06-16
申请人： Masayuki Kyoshima , Masaki Oikawa , Keiji Tomizawa
发明人： Masayuki Kyoshima , Masaki Oikawa , Keiji Tomizawa
IPC分类号： B41J29/38
CPC分类号： B41J2/2132
摘要： An inkjet printing apparatus and an inkjet printing method are provided which can minimize air current disturbances that occur between the print head and the print medium and also minimize density unevenness caused by mask patterns. For this purpose, the 2-pass printing is performed such that the high printing ratio region and the low printing ratio region are alternated every pixel in the nozzle-arrayed direction and that adjoining groups of high printing ratio regions are separated from one another by a group of low printing ratio regions that forms a passage wide enough for air currents to pass through.
摘要翻译：提供一种喷墨打印设备和喷墨打印方法，其可以使打印头和打印介质之间发生的气流干扰最小化，并且还使由掩模图案引起的密度不均匀最小化。为此，进行2遍打印，使得高打印率区域和低打印率区域在喷嘴排列方向上的每个像素交替，并且相邻的高打印率区域组彼此分离一组低打印率区域，形成足够宽的通道，以使气流通过。

4. 发明授权

US07832843B2 Liquid jet head 有权
标题翻译：液体喷头
公开(公告)号：US07832843B2
公开(公告)日：2010-11-16
申请号：US11844071
申请日：2007-08-23
申请人： Masaki Oikawa , Mineo Kaneko , Ken Tsuchii , Toru Yamane , Keiji Tomizawa , Mitsuhiro Matsumoto , Shuichi Ide , Kansui Takino , Naozumi Nabeshima
发明人： Masaki Oikawa , Mineo Kaneko , Ken Tsuchii , Toru Yamane , Keiji Tomizawa , Mitsuhiro Matsumoto , Shuichi Ide , Kansui Takino , Naozumi Nabeshima
IPC分类号： B41J2/05
CPC分类号： B41J2/145 , B41J2/1404 , B41J2002/14177 , B41J2002/14403 , B41J2002/14475
摘要： A liquid ejecting head includes plural ejection outlets for ejecting droplets; liquid flow paths in fluid communication with the ejection outlets; and a liquid supply opening for supplying the liquid to the liquid flow paths. The ejection outlets include first and second ejection outlets disposed at least at one side of the liquid supply opening and are staggered. The first ejection outlets are nearer to the liquid supply opening than the second ejection outlets. Each of first recording elements corresponding to the first ejection outlets includes one rectangular heat generating resistor having a long side extending along a direction crossing with an arranging direction of the ejection outlets. Each of second recording elements corresponding to the second ejection outlets comprises plural rectangular heat generating resistors which are adjacent to each other at long sides thereof and are electrically connected in series.
摘要翻译：液体喷射头包括用于喷射液滴的多个喷射出口; 与喷射出口流体连通的液体流路; 以及用于将液体供应到液体流动通道的液体供应开口。喷射出口包括设置在液体供应开口的至少一侧的第一和第二喷射出口，并且交错。第一喷射口比第二喷射口更靠近液体供应口。对应于第一喷射出口的每个第一记录元件包括一个矩形发热电阻器，其具有沿着与喷射出口的排列方向交叉的方向延伸的长边。与第二喷射口相对应的第二记录元件中的每一个包括在其长边彼此相邻并串联电连接的多个矩形发热电阻器。

5. 发明申请

US20090201343A1 LIQUID EJECTION HEAD AND MANUFACTURING METHOD OF LIQUID EJECTION HEAD 有权
标题翻译：液体喷射头的液体喷射头和制造方法
公开(公告)号：US20090201343A1
公开(公告)日：2009-08-13
申请号：US12364217
申请日：2009-02-02
申请人： Chiaki Muraoka , Yukuo Yamaguchi , Mikiya Umeyama , Toru Yamane , Masaki Oikawa , Yuichiro Akama , Keiji Tomizawa , Tomotsugu Kuroda
发明人： Chiaki Muraoka , Yukuo Yamaguchi , Mikiya Umeyama , Toru Yamane , Masaki Oikawa , Yuichiro Akama , Keiji Tomizawa , Tomotsugu Kuroda
IPC分类号： B41J2/05 , H01L21/00
CPC分类号： B41J2/1404 , B41J2/1603 , B41J2/1629 , B41J2/1631 , B41J2/1645 , B41J2002/14403 , B41J2002/14475
摘要： The present invention provides a liquid ejection head for which the peeling of an orifice plate from a substrate seldom occurs, even in a structure such that the walls that define each energy application chamber are narrowed toward a ejection port. The walls that define a first pressure chamber are inclined inward within the first pressure chamber, so that the first pressure chamber is narrowed, toward an ejection port, along a direction perpendicular to the heater formation face on which heaters are arranged. Further, the walls that define each ink flow path are inclined in the ink ejection direction. Furthermore, the angle at which the walls that define the ink flow path are inclined relative to the ink ejection direction is smaller than the angle at which the walls that define the first pressure chamber are inclined inward, within the first pressure chamber.
摘要翻译：本发明提供了一种液体喷射头，即使在限定每个能量施加室的壁朝向喷射口变窄的结构中，也很少发生孔板从基板的剥离。限定第一压力室的壁在第一压力室内向内倾斜，使得第一压力室沿着与加热器布置在其上的加热器形成面垂直的方向朝向喷射口变窄。此外，限定每个油墨流动路径的壁在喷墨方向上倾斜。此外，限定墨流路的壁相对于墨喷射方向倾斜的角度小于在第一压力室内限定第一压力室的壁向内倾斜的角度。

6. 发明申请

US20090147057A1 LIQUID EJECTION HEAD AND PRINTING APPARATUS 有权
标题翻译：液体喷射头和打印装置
公开(公告)号：US20090147057A1
公开(公告)日：2009-06-11
申请号：US12328471
申请日：2008-12-04
申请人： Masaki Oikawa , Mitsuhiro Matsumoto
发明人： Masaki Oikawa , Mitsuhiro Matsumoto
IPC分类号： B41J2/05
CPC分类号： B41J2/14145 , B41J2/1404 , B41J2/14056 , B41J2002/14177 , B41J2002/14387 , B41J2202/11
摘要： A liquid ejection head is provided that is adapted, when the ejection of comparatively small ink droplets by one print head is required, to not only increase a printing speed and a printing resolution but also to prevent the occurrence of cavitation. The liquid ejection head includes: nozzles, for which heaters are formed to generate thermal energy used to eject ink; and bubble generation chambers, for which ejection ports are formed for ejecting ink upon the application of thermal energy provided by the heaters. Further, a partition wall is formed in each bubble generation chamber at a position opposite the ejection port.
摘要翻译：提供了一种液体喷射头，其适于当需要由一个打印头喷射相对小的墨滴时，不仅提高打印速度和打印分辨率，而且防止空化的发生。液体喷射头包括：喷嘴，其中形成加热器以产生用于喷射墨水的热能; 以及气泡生成室，其中形成喷射口用于在施加由加热器提供的热能时喷射墨水。此外，在每个气泡产生室中在与喷射口相对的位置处形成隔壁。

7. 发明申请

US20080143786A1 INK JET RECORDING HEAD AND INK JET RECORDING APPARATUS 有权
标题翻译：喷墨记录头和喷墨记录装置
公开(公告)号：US20080143786A1
公开(公告)日：2008-06-19
申请号：US11936227
申请日：2007-11-07
申请人： Masaki Oikawa , Mineo Kaneko , Ken Tsuchii , Toru Yamane , Keiji Tomizawa , Mitsuhiro Matsumoto , Shuichi Ide , Kansui Takino , Naozumi Nabeshima
发明人： Masaki Oikawa , Mineo Kaneko , Ken Tsuchii , Toru Yamane , Keiji Tomizawa , Mitsuhiro Matsumoto , Shuichi Ide , Kansui Takino , Naozumi Nabeshima
IPC分类号： B41J2/14
CPC分类号： B41J2/145 , B41J2/1404 , B41J2/2125 , B41J2002/14475 , B41J2202/11
摘要： An ink jet recording head and an ink jet recording apparatus are provided to prevent occurrence of a white line or recording unevenness due to a head tilt, and realize a high image quality recording. For this purpose, in a recording head provided with nozzles ejecting three types of droplets, a large droplet, medium droplet and small droplet, nozzles are configured such that any nozzles are not arranged on the same line at the centers thereof in the main scanning direction.
摘要翻译：提供喷墨记录头和喷墨记录装置，以防止由于头部倾斜引起的白线的发生或记录不均匀，并且实现高图像质量记录。为此，在设置有喷射三种液滴的喷嘴的记录头，大液滴，中等液滴和小液滴的喷嘴中，喷嘴被配置成使得任何喷嘴在主扫描方向上的中心处不布置在同一条线上。

8. 发明授权

US08845081B2 Liquid discharge head 有权
标题翻译：排液头
公开(公告)号：US08845081B2
公开(公告)日：2014-09-30
申请号：US13605686
申请日：2012-09-06
申请人： Masaki Oikawa , Keiji Tomizawa
发明人： Masaki Oikawa , Keiji Tomizawa
IPC分类号： B41J2/05 , B41J2/04 , B41J2/14
CPC分类号： B41J2/14145 , B41J2/1404 , B41J2002/14403 , B41J2002/14467
摘要： A liquid discharge head includes a plurality of discharge ports configured to discharge liquid, a supply port configured to retain the liquid to be discharged from the plurality of discharge ports, a first pressure chamber including a first energy generation element to discharge a predetermined amount of liquid droplets, a second pressure chamber including a second energy generation element to discharge an amount of liquid droplets greater than the predetermined amount, a first flow path through which the supply port and the first pressure chamber communicate with each other, and a second flow path through which the first pressure chamber and the second pressure chamber communicate with each other.
摘要翻译：液体排出头包括多个排出液体的排出口，构成为保持从多个排出口排出的液体的供给口，具有第一能量产生元件的第一压力室，排出规定量的液体液滴，包括第二能量产生元件的第二压力室，以排出大于预定量的液滴量;供给口和第一压力室相互连通的第一流路，以及通过第一压力室和第二压力室彼此连通。

9. 发明授权

US08342645B2 Printing apparatus and control method therefor 有权
标题翻译：印刷装置及其控制方法
公开(公告)号：US08342645B2
公开(公告)日：2013-01-01
申请号：US12768924
申请日：2010-04-28
申请人： Keiji Tomizawa , Masaki Oikawa , Masayuki Kyoshima
发明人： Keiji Tomizawa , Masaki Oikawa , Masayuki Kyoshima
IPC分类号： B41J2/15
CPC分类号： B41J29/02 , B41J29/38
摘要： A printing apparatus prints on a printing medium by scanning a printhead having a plurality of nozzle arrays in a first direction and a second direction opposite to the first direction, and has a structure in which an air flow entering the nozzle array in the scan of the printhead in the first direction becomes larger than an air flow entering the nozzle array in the scan of the printhead in the second direction. The apparatus increases, in scanning in the second direction, discharge speed of ink discharged from at least one nozzle array arranged leeward in the scanning direction of the printhead from a predetermined position on the printhead in the scanning direction to be higher than or equal to the discharge speed of ink discharged from at least one nozzle array arranged windward in the scanning direction of the printhead from the predetermined position.
摘要翻译：打印装置通过在与第一方向相反的第一方向和第二方向上扫描具有多个喷嘴阵列的打印头在打印介质上打印，并且具有这样的结构：在扫描中的喷嘴阵列中的空气流打印头沿第一方向变得大于在第二方向扫描打印头时进入喷嘴阵列的气流。该设备在扫描方向上从打印头的扫描方向上从打印头的扫描方向排列的至少一个喷嘴阵列排出的排墨速度从扫描方向上的打印头上的预定位置增加到高于或等于从至少一个喷嘴阵列排出的墨水的排出速度从打印头的扫描方向从预定位置向上排列。

10. 发明授权

US08210655B2 Liquid ejection head and manufacturing method of liquid ejection head 有权
标题翻译：液体喷射头和液体喷射头的制造方法
公开(公告)号：US08210655B2
公开(公告)日：2012-07-03
申请号：US12364217
申请日：2009-02-02
申请人： Chiaki Muraoka , Yukuo Yamaguchi , Mikiya Umeyama , Toru Yamane , Masaki Oikawa , Yuichiro Akama , Keiji Tomizawa , Tomotsugu Kuroda
发明人： Chiaki Muraoka , Yukuo Yamaguchi , Mikiya Umeyama , Toru Yamane , Masaki Oikawa , Yuichiro Akama , Keiji Tomizawa , Tomotsugu Kuroda
IPC分类号： B41J2/05 , B41J2/14
CPC分类号： B41J2/1404 , B41J2/1603 , B41J2/1629 , B41J2/1631 , B41J2/1645 , B41J2002/14403 , B41J2002/14475
摘要： The present invention provides a liquid ejection head for which the peeling of an orifice plate from a substrate seldom occurs, even in a structure such that the walls that define each energy application chamber are narrowed toward an ejection port. The walls that define a first pressure chamber are inclined inward within the first pressure chamber, so that the first pressure chamber is narrowed, toward an ejection port, along a direction perpendicular to the heater formation face on which heaters are arranged. Further, the walls that define each ink flow path are inclined in the ink ejection direction. Furthermore, the angle at which the walls that define the ink flow path are inclined relative to the ink ejection direction is smaller than the angle at which the walls that define the first pressure chamber are inclined inward, within the first pressure chamber.
摘要翻译：本发明提供了一种液体喷射头，即使在限定每个能量施加室的壁朝向喷射口变窄的结构中，也很少发生孔板从基板的剥离。限定第一压力室的壁在第一压力室内向内倾斜，使得第一压力室沿着与加热器布置在其上的加热器形成面垂直的方向朝向喷射口变窄。此外，限定每个油墨流动路径的壁在喷墨方向上倾斜。此外，限定墨流路的壁相对于墨喷射方向倾斜的角度小于在第一压力室内限定第一压力室的壁向内倾斜的角度。

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