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    • 24. 发明授权
    • Patch antenna and electronic equipment using the same
    • 贴片天线和电子设备使用相同
    • US06255995B1
    • 2001-07-03
    • US09451975
    • 1999-11-30
    • Takeshi AsanoAkihisa Sakurai
    • Takeshi AsanoAkihisa Sakurai
    • H01Q138
    • H01Q9/0407H01Q1/007H01Q9/0442
    • A patch antenna 1 is comprised of a ground plate 3 provided on one surface of a dielectric plate 2, along with a patch 4 and a feeding line 5 for connection to the patch 4, each being provided on the other surface of the dielectric plate 2. In this patch antenna 1, an aperture 7 is provided on the ground plate 3 at a position, which is asymmetric about a center of the ground plate 3. By virtue of placing the aperture 7 on the ground plate 3 in an asymmetrical manner about the center of the ground plate 3, distribution of a return current becomes so asymmetric as to yield a common mode current. In this way, it is possible to implement the non-directional and broad-bandwidth characteristics.
    • 贴片天线1包括设置在电介质板2的一个表面上的接地板3以及贴片4和用于连接到贴片4的馈电线5,每个馈电线5设置在电介质板2的另一个表面上 在该贴片天线1中,在接地板3上,在接地板3的中心附近不对称的位置设置有开口部7。通过以不对称的方式将开口部7放置在接地板3上 接地板3的中心,返回电流的分布变得非对称,以产生共模电流。 以这种方式,可以实现无方向性和宽带宽特性。
    • 29. 发明申请
    • INKJET HEAD, INKJET RECORDING APPARATUS, AND METHOD OF PRODUCING INKJET HEAD
    • 喷墨头,喷墨记录装置以及制造喷墨头的方法
    • US20110242224A1
    • 2011-10-06
    • US13012007
    • 2011-01-24
    • Takeshi Asano
    • Takeshi Asano
    • B41J2/04C23F1/00B23P17/00
    • B41J2/14233B41J2/161B41J2/1626B41J3/4078B41J2002/1425B41J2202/03
    • An inkjet head includes a plurality of nozzles through which ink is dischargeable out of the inkjet head, a pressure chamber plate that is made of metal, a plurality of pressure chambers that are groove portions formed in the pressure chamber plate for applying to the ink a pressure that is necessary in order to discharge the ink from the plurality of nozzles, an actuator that faces a first face of the pressure chamber plate and that includes a plurality of pressure generating portions, and a pressure chamber support member that supports the pressure chamber plate from a second face of the pressure chamber plate, the second face being an opposite face to the first face, and that is made from a material that has a Young's modulus that is greater than a Young's modulus of a material from which the pressure chamber plate is made.
    • 喷墨头包括多个喷嘴,墨水可从喷墨头喷出,压力室板由金属制成,多个压力室是形成在压力室板中的用于施加到油墨a上的槽部分 为了从多个喷嘴排出油墨所必需的压力,面对压力室板的第一面并且包括多个压力产生部分的致动器,以及压力室支撑构件,其支撑压力室板 从所述压力室板的第二面,所述第二面是与所述第一面相反的面,并且所述第二面是由杨氏模量大于材料的杨氏模量的材料制成的,所述材料的压力室板 是做的