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    • 53. 发明授权
    • Apparatus for driving liquid jet head
    • 用于驱动液体喷头的装置
    • US4639735A
    • 1987-01-27
    • US616703
    • 1984-06-04
    • Mitsuru YamamotoKunio WatanabeJunji Shimoda
    • Mitsuru YamamotoKunio WatanabeJunji Shimoda
    • B05B12/08B41J2/045B41J2/055B41J2/205B41J2/21G01D15/16
    • B41J2/2128
    • An apparatus for driving a liquid jet head comprises: a piezoelectric element which mechanically deforms responsive to an electric signal; a pressure chamber whose volume varies due to the deformation of such element; a discharge port communicated with such chamber; 1st and 2nd charging circuits to charge such element at the same polarity; a discharging circuit to discharge such element; and a control unit for making the 1st charging circuit operative prior to the operation of the 2nd charging circuit. A charge time constant of the 1st charging circuit is set to be sufficiently long that no droplet is emitted. A charge time constant of the 2nd charging circuit is set to be shorter to emit a droplet from the discharge port. The surface tension of the meniscus and the contractive force due to the contraction of the pressure chamber act multiplicatively, so that it is possible to record a droplet of a small dot diameter.
    • 用于驱动液体喷射头的装置包括:响应于电信号机械地变形的压电元件; 容积由于这种元件的变形而变化的压力室; 与该室连通的排出口; 第一和第二充电电路以相同的极性对这些元件充电; 用于对这种元件进行放电的放电电路; 以及用于使第一充电电路在第二充电电路的操作之前工作的控制单元。 第一充电电路的充电时间常数被设定为足够长,没有发射液滴。 第二充电电路的充电时间常数被设定为更短以从排出口发射液滴。 弯月面的表面张力和由于压力室的收缩引起的收缩力作用多次,使得可以记录小点直径的液滴。
    • 56. 发明授权
    • Diaphragm pump
    • 隔膜泵
    • US08308453B2
    • 2012-11-13
    • US12448694
    • 2008-01-15
    • Mitsuru YamamotoKazuhito MurataSakae Kitajo
    • Mitsuru YamamotoKazuhito MurataSakae Kitajo
    • F04B17/00F04B53/10
    • F04B43/046F04B43/028F04B43/04
    • A pump chamber (15) is formed between a piezoelectric vibrator (7) and a valve main plate (10). The valve main plate (10) includes an inlet port (13) at its central portion, and an outlet port (14) in its peripheral portion, and the inlet port (13) is made in a smaller diameter than the outlet port (14). On the valve main plate (10) an inflow check valve (11) and an outflow check valve (12) are provided, so that when the inflow check valve (11) and the outflow check valve (12) open and close in response to the vibration of the piezoelectric vibrator (7), a fluid is introduced into and discharged from the pump chamber (15).
    • 在压电振子(7)和阀主板(10)之间形成泵室(15)。 阀主板(10)在其中心部分包​​括入口(13)和其周边部分的出口(14),并且入口(13)制成的直径小于出口(14)的直径 )。 在阀主板(10)上设置有流入止回阀(11)和流出止回阀(12),当流入止回阀(11)和流出止回阀(12)响应于 压电振动器(7)的振动,将流体引入泵室(15)并从泵室(15)排出。
    • 58. 发明申请
    • Liquid-Cooled Heat Radiator
    • 液冷散热器
    • US20100155035A1
    • 2010-06-24
    • US12087879
    • 2007-01-23
    • Tomotaka IshidaMitsuru YamamotoSakae KitajoKazuhiro Kumakura
    • Tomotaka IshidaMitsuru YamamotoSakae KitajoKazuhiro Kumakura
    • F28D15/00F28D1/00
    • H01L23/473G06F1/20G06F2200/201H01L2924/0002H05K7/20272H01L2924/00
    • A liquid-cooled heat radiator 1 includes a heat radiation base 2 having a cooling-liquid channel 5, and an expansion tank 7 provided on the heat radiation base 2. The expansion tank 7 has a tank body 26 having an expanded portion 27, which expands upward and opens downward, and a bottom plate 28 joined to the lower end of the tank body 26 to thereby close a bottom opening of the expanded portion 27. A through-hole 29 is formed in the top wall of the expanded portion 27 of the tank body 26 and serves as a communication section for establishing communication between the interior and the exterior of the cooling-liquid channel 5. A hydrogen-permeable member 31 is fixedly fitted into the through-hole 29 so as to stop the through-hole 29. The hydrogen-permeable member 31 satisfies the relation B≧50 A, where A and B are water-vapor permeability and hydrogen permeability, respectively, of the hydrogen-permeable member 31. The hydrogen-permeable member 31 is formed from a single material selected from the group consisting of ethylene-propylene rubber, butyl rubber, fluorine-containing rubber, nitrile-butadiene rubber, and silicone rubber. The liquid-cooled heat radiator 1 can be free from an increase in pressure in the cooling-liquid channel 5.
    • 液冷散热器1包括具有冷却液通道5的散热基座2和设置在散热基座2上的膨胀箱7.膨胀箱7具有一个具有膨胀部分27的罐体26, 向下方膨胀,向下方开口的底板28与罐体26的下端接合,从而封闭膨胀部27的底部开口。在扩孔部27的顶壁形成有通孔29, 罐本体26构成用于建立冷却液通道5的内部和外部之间的连通的连通部。通气部件31固定地配合在通孔29中以停止通孔 氢渗透性构件31满足B≥A≥AA的关系,A和B分别为透水性构件31的水蒸气透过率和透氢性。透氢性构件31由单一的 材料sele 由乙烯 - 丙烯橡胶,丁基橡胶,含氟橡胶,丁腈橡胶和硅橡胶组成的组中。 液冷散热器1可以没有冷却液通道5中的压力增加。