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    • 2. 发明申请
    • MULTILAYER POWER INDUCTOR USING SHEETS CHARGED WITH SOFT MAGNETIC METAL POWDER
    • 使用软磁性金属粉末填充的多层功率电感器
    • US20100308949A1
    • 2010-12-09
    • US12744930
    • 2009-03-03
    • Sung Tae LimTae Kyung LeeDoo In Kang
    • Sung Tae LimTae Kyung LeeDoo In Kang
    • H01F27/255H01F27/24
    • H01F17/04H01F17/0013
    • The present invention relates to a multilayer power inductor in which sheets are charged with a soft magnetic metal alloy powder having a shape optimized along a magnetic path, pattern circuits made from conductive materials are formed on the sheets, and via holes are formed through the sheets to easily connect pattern circuits. The power inductor of the present invention is manufactured by stacking the above-described sheets into multiple layers. The sheets of the inductor of the present invention are charged with soft magnetic metal powder having a high magnetization density, and fine gaps are distributed among the powder the shape of which is optimized along a magnetic path to ensure high current superposition characteristics which allow the use of 1A to several tens of A without causing leakage flux, and ensure stable inductance to a high frequency domain of the 10 MHz band. Further, the present invention is advantageous as it provides an inductor with a thin width, a large area, high inductance and high direct current superposition characteristics.
    • 本发明涉及一种多层电力电感器,其中片材充满了具有沿磁路优化的形状的软磁金属合金粉末,由导电材料制成的图案电路形成在片材上,并且通孔形成在片材上 轻松连接图案电路。 本发明的功率电感器通过将上述片层叠成多层来制造。 本发明的电感器的片材充有高磁化密度的软磁金属粉末,并且细小的间隙分布在其形状沿着磁路优化的粉末中,以确保允许使用的高电流叠加特性 1A至几十A,而不会产生漏磁通,并确保10 MHz频段高频域的稳定电感。 此外,本发明是有利的,因为它提供具有薄宽度,大面积,高电感和高直流叠加特性的电感器。
    • 3. 发明授权
    • Piezoelectric actuator, inkjet head assembly and method of manufacturing the same
    • 压电致动器,喷墨头组件及其制造方法
    • US08777378B2
    • 2014-07-15
    • US13407331
    • 2012-02-28
    • Tae Kyung LeePil Joong KangHwa Sun Lee
    • Tae Kyung LeePil Joong KangHwa Sun Lee
    • B41J2/045
    • B41J2/14233B41J2002/14491B41J2202/18
    • There are provided a piezoelectric actuator, an inkjet head assembly, and a method of manufacturing the same. The piezoelectric actuator includes: upper and lower electrodes providing driving voltage; and a piezoelectric substance formed between the upper and lower electrodes through solidifying a liquid piezoelectric substance, and providing driving force to ink in each of a plurality of pressure chambers provided in an inkjet head, wherein the piezoelectric substance includes a plurality of branch portions individually provided on an upper portion of each of the plurality of pressure chambers and a large area portion integrally provided while being connected to each of the plurality of branch portions at one ends of the plurality of branch portions.
    • 提供了压电致动器,喷墨头组件及其制造方法。 压电致动器包括:提供驱动电压的上下电极; 以及通过使液体压电体固化而形成在上下电极之间的压电体,并且在设置在喷墨头中的多个压力室中的每个压力室中的墨水中提供驱动力,其中,压电体包括多个分支部, 在所述多个压力室的每一个的上部,以及在所述多个分支部的一端连接到所述多个分支部中的每一个的同时一体地设置的大面积部分。