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    • 2. 发明授权
    • Method for manufacturing liquid jet recording heads and a head manufactured by such method of manufacture
    • 用于制造液体喷射记录头的方法和通过这种制造方法制造的头部
    • US06225032B1
    • 2001-05-01
    • US09139399
    • 1998-08-25
    • Toshinori HasegawaMasaki InabaAkio SaitohAkira GotoMasao FurukawaShin IshimatsuMiki Ito
    • Toshinori HasegawaMasaki InabaAkio SaitohAkira GotoMasao FurukawaShin IshimatsuMiki Ito
    • G03F700
    • B41J2/1634B41J2/162B41J2/1637Y10S430/146
    • A method for manufacturing liquid jet recording heads, each provided with discharge ports to discharge liquid, a discharge port plate having the discharge ports arranged therefor, and performing ablation processing of holes becoming the discharge ports by use of a mask for projecting the image of the mask onto the discharge port plate with coherent laser beam as light source, comprises the following steps of forming water-repellent layer on the surface of the discharge port plate on the liquid discharge side; and of performing the ablation processing by irradiating the laser beam from the reverse side of the surface of discharge port plate having the water-repellent layer formed thereon in a state of such surface being arranged to be under the atmosphere containing fluorine atom, and forming the discharge ports, at the same time, enabling the substance containing the fluorine atom excited by the laser beam to adhere to the surface having the water-repellent layer formed thereon. In this manner, the throughput of product manufacture is enhanced without any provision of extra processing steps to remove the byproducts to be created by the irradiation of laser beam, hence contributing to a significant cost reduction of the manufacture of liquid jet recording heads.
    • 一种液体喷射记录头的制造方法,每个液体喷射记录头均具有用于排出液体的排出口,具有排出口的排出口板,并且通过使用用于投影所述排出口的图像的掩模对成为排出口的孔进行消融处理 将具有相干激光束作为光源的排出口板掩模,包括在排液侧的排出口板的表面上形成防水层的步骤; 并且通过在形成有所述防水层的排出口板的表面的背面照射激光束,在这样的表面被布置在含有氟原子的气氛的状态下进行烧蚀处理,并且形成 排出口,同时使含有被激光束激发的氟原子的物质粘附到形成有防水层的表面上。 以这种方式,增加了产品生产的吞吐量,而没有任何额外的处理步骤来除去由激光束照射产生的副产品,从而有助于大大降低液体喷射记录头的制造成本。
    • 5. 发明授权
    • Color image processing apparatus capable of suppressing moire
    • 能够抑制莫尔条纹的彩色图像处理装置
    • US5572600A
    • 1996-11-05
    • US263687
    • 1994-06-22
    • Joji TajimaMitsuo KajiMiki ItoAkira ItoYouichi Sato
    • Joji TajimaMitsuo KajiMiki ItoAkira ItoYouichi Sato
    • H04N1/52H04N1/40
    • H04N1/52
    • An image data generating circuit of a color image processing apparatus generates multivalued image data for each color in accordance with density of each color of magenta (M), cyan (C) and yellow (Y). An M-screen threshold value generating circuit outputs a plurality of first threshold values, a C-screen threshold value generating circuit outputs a plurality of second threshold values, and a Y-screen threshold value generating circuit for outputting a plurality of third threshold values. A comparing circuit compares the multivalued image data outputted from the image data generating circuit with the first to third threshold values outputted from the M-, C- and Y- screen generating circuits for each color to output a comparison result in the form of a binary signal. The first and second threshold values is assigned to each pixel of an M multi-cell and a C multi-cell constituted by square matrixes having screen angles of .+-.tan.sup.-1 (q/p) and each side of .beta..multidot.p.multidot.q, respectively. For preventing coarse moire, p and q are any value of (11,3), (15,4) and (19,5), and the M multi-cell and the C multi-cell consist of N (=p.sup.2 +q.sup.2) sub-cells arrayed continuously in the directions of the screen angles of .+-.tan.sup.-1 (q/p) and having threshold values in accordance with the predetermined number of gradations. The third threshold value is assigned to a Y multi-cell constituted by a square matrix having a screen angle of 45 degrees and each side of .beta..multidot.p.multidot.q. The Y multi-cell consists of 2(p-q).sup.2 sub-cells arrayed continuously in the direction of the screen angle of 45 degrees. The first to fourth threshold values are repeatedly outputted in a cycle of .beta..multidot.p.multidot.q in synchronism with the multivalued image data of each color.
    • 彩色图像处理装置的图像数据生成电路根据品红色(M),青色(C)和黄色(Y)的各颜色的浓度,生成各颜色的多值图像数据。 M屏幕阈值产生电路输出多个第一阈值,C屏幕阈值产生电路输出多个第二阈值,以及Y屏幕阈值产生电路,用于输出多个第三阈值。 比较电路将从图像数据产生电路输出的多值图像数据与从M,C和Y屏幕生成电路输出的每种颜色的第一至第三阈值进行比较,以二进制形式输出比较结果 信号。 第一和第二阈值被分配给M多单元的每个像素和由具有+/- tan-1(q / p)的屏幕角度和βxpxq的每一边的方阵组成的C多单元格 。 为了防止粗莫尔条纹,p和q是(11,3),(15,4)和(19,5)的任何值,M多单元和C多单元由N(= p2 + q2 )子单元在+/- tan-1(q / p)的屏幕角度的方向上连续排列并且具有根据预定数量的灰度的阈值。 第三阈值被分配给由具有45度的屏幕角度和βxpxq的每一边的正方形矩阵构成的Y多单元格。 Y多单元由在屏幕角度为45度的方向上连续排列的2(p-q)2个子单元组成。 与每种颜色的多值图像数据同步地,以β×pxq的周期重复输出第一至第四阈值。
    • 8. 发明授权
    • Method for manufacturing orifice plate and liquid discharge head
    • 孔板和排液头的制造方法
    • US06397466B1
    • 2002-06-04
    • US09340462
    • 1999-06-28
    • Shuji KoyamaJunji TatsumiKen IkegameHiroaki MiharaMiki Ito
    • Shuji KoyamaJunji TatsumiKen IkegameHiroaki MiharaMiki Ito
    • B21D5376
    • B41J2/164B23K26/382B23K26/389B23K26/40B23K2103/02B23K2103/05B23K2103/08B23K2103/10B23K2103/12B23K2103/16B23K2103/26B23K2103/42B23K2103/50B41J2/162B41J2/1625B41J2/1628B41J2/1629B41J2/1634B41J2202/21Y10T29/49165Y10T29/49401
    • A method for manufacturing an orifice plate with a plate material having a through hole arranged to become an orifice for discharging liquid comprises the steps of arranging a resin layer in a position corresponding to the through hole on the surface of a conductive substrate in a configuration corresponding to the through hole in a thickness corresponding at least to the lenght of the through hole, forming a metallic layer by means of electro-forming on the exposed surface of a portion of the conductive substrated corresponding to the plate material in a thickness corresponding to the thickness of the plate material in order to obtain the metallic layer in a state where the resin layer is filled in the through hole portion, applying water repellent resin to the surface of the metallic layer having the resin layer filled therein, peeling off the metallic layer from the conductive substrate together with the resin layer to obtain the plate material in a state where the through hole portion is filled with the resin layer, and removing by laser irradiation the resin layer portion of the plate material in a state where the resin layer is filled in the through hole portion having the water repellent layer coated on the surface in order to form the through hole.
    • 用于制造具有布置成成为用于排出液体的孔口的通孔的板材的孔板的方法包括以下步骤:在对应于导电基板的表面上的通孔的与通孔相对应的位置中配置树脂层 以至少对应于通孔的长度的方式通孔,通过电铸形成金属层,所述金属层在对应于所述板材的所述导电材料的一部分的所述暴露表面上的厚度对应于 为了在树脂层填充在通孔部分的状态下获得金属层,在其中填充有树脂层的金属层的表面上施加防水树脂,剥离金属层, 从导电性基板与树脂层一起获得板状材料,其状态为通孔端口 离子被树脂层填充,并且在树脂层填充在具有涂覆在表面上的防水层的通孔部分中的状态下通过激光照射去除板材的树脂层部分,以形成通孔 孔。