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    • 3. 发明授权
    • Ink storing chamber structure in an ink jet printer head
    • 墨水储存室结构在喷墨打印头中
    • US06217161B1
    • 2001-04-17
    • US09095660
    • 1998-06-11
    • Toshio InoseMasaaki Deguchi
    • Toshio InoseMasaaki Deguchi
    • B41J2045
    • B41J2/14233
    • An ink jet printer head for discharging ink is provided with: a cavity plate prescribing (i) an ink flow path through which the ink is supplied, (ii) a plurality of ink storing chambers, each of which is connected to the ink flow path in which the supplied ink is temporarily stored, and (iii) a plurality of ink discharge holes which are connected to respective one of the ink storing chambers though which the temporarily stored ink is discharged; a piezoelectric element member, which is shaped in a plate opposed to the cavity plate and has a plurality of piezoelectric elements for selectively changing capacities of the ink storing chambers; and a partition plate interposed between the cavity plate and the piezoelectric element member such that each of the ink storing chambers be a closed space for temporarily storing the ink. The cavity plate is provided with a main plate portion and a plurality of partition wall portions, which stand from the main plate portion and are arranged at substantially equidistant intervals, for partitioning the ink storing chambers adjacent to each other. Each of the partition wall portions includes (i) a straight wall portion, which is disposed at a tip side thereof and is constant in width from the tip side toward a root side thereof to prescribe a straight wall substantially perpendicular to the main plate portion, and (ii) an inclined wall portion, which is disposed at the root side, increases in width from the tip side toward the root side to prescribe an inclined wall oblique to the main plate portion.
    • 一种用于排出墨水的喷墨打印机头设有:一个空腔板,其中规定了(i)供应墨水的墨水流动通道,(ii)多个墨水储存室,每个墨水存储腔室都连接到墨水流动通道 其中供应的墨水被临时存储,和(iii)多个墨水排放孔,其连接到相应的一个墨水存储室,通过该墨水排出孔临时存储的墨水被排出; 压电元件,其形成在与所述腔板相对的板中,并具有用于选择性地改变所述储墨室的容量的多个压电元件; 以及插入在所述腔板和所述压电元件部件之间的分隔板,使得每个所述储墨室是用于临时存储所述墨水的封闭空间。 空腔板设置有主板部分和多个分隔壁部分,其从主板部分竖立并且以基本上等距的间隔布置,用于分隔彼此相邻的墨水储存室。 每个分隔壁部分包括(i)直壁部分,其设置在其尖端侧并且从尖端侧朝向其根部侧的宽度恒定,以规定基本上垂直于主板部分的直壁, 和(ii)设置在根侧的倾斜壁部分从尖端侧朝向根侧增加宽度,以规定相对于主板部分倾斜的倾斜壁。
    • 4. 发明授权
    • Liquid droplet jetting apparatus and piezoelectric actuator
    • 液滴喷射装置和压电致动器
    • US08955942B2
    • 2015-02-17
    • US13850368
    • 2013-03-26
    • Masaaki DeguchiShohei Koide
    • Masaaki DeguchiShohei Koide
    • B41J2/045B41J2/015H01L41/047B41J2/14
    • H01L41/0477B41J2/14201B41J2/14233B41J2002/14266B41J2002/14459B41J2002/14491
    • A liquid droplet jetting apparatus includes a flow passage structural body having a nozzle and a pressure chamber communicated with the nozzle, and a piezoelectric actuator provided on the flow passage structural body to apply jetting energy to a liquid inside the pressure chamber. The piezoelectric actuator has a piezoelectric layer arranged to face the pressure chamber, a low-potential electrode provided on the piezoelectric layer, and a high-potential electrode provided on the piezoelectric layer and to which a higher potential is applied than to the low-potential electrode. The high-potential electrode has a first electrode layer arranged to contact with the piezoelectric layer and formed of gold, and a second electrode layer stacked on the first electrode layer to extend in a predetermined direction, having a width shorter than that of the first electrode layer, and formed of a conductive material more likely to cause migration than gold.
    • 液滴喷射装置包括具有喷嘴和与喷嘴连通的压力室的流路结构体,以及设置在流路结构体上的压电致动器,用于向压力室内的液体施加喷射能量。 压电致动器具有设置成面对压力室的压电层,设置在压电层上的低电位电极和设置在压电层上的高电位电极,并且施加比低电位更高的电位 电极。 高电位电极具有布置成与压电层接触并由金形成的第一电极层和堆叠在第一电极层上以沿预定方向延伸的第二电极层,其宽度比第一电极的宽度短 并且由比金更容易引起迁移的导电材料形成。