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    • 12. 发明申请
    • Diaphragm valve for the vacuum evacuation system
    • 隔膜阀用于真空抽气系统
    • US20060175573A1
    • 2006-08-10
    • US10546032
    • 2004-02-09
    • Tadahiro OhmiNobukazu IkedaMichio YamajlMasafumi KitanoAkihiro Morimoto
    • Tadahiro OhmiNobukazu IkedaMichio YamajlMasafumi KitanoAkihiro Morimoto
    • F16K1/00
    • F16K7/16F16K51/02
    • A diaphragm valve 1 is provided with a body 2 having a flow-in passage 6, a flow-out passage 7, and a valve seat 8 formed between the passages; a diaphragm 3 installed in the body 2 and permitted to rest on and move away from the valve seat 8; and a driving means 4 installed on the body 2 to allow the diaphragm 3 to rest on and move away from the valve seat 8, wherein synthetic resin films 5 of predetermined thickness are coated on fluid-contacting parts 25 of the afore-mentioned body 2 and diaphragm 3. A diaphragm valve in accordance with the present invention prevents corrosion of the valve members caused by accumulation and adherence of substances produced by thermal decomposition, and prevents clogging caused by substances produced, and prevents seat leakage when applied in the vacuum exhaust system of a semiconductor manufacturing facility.
    • 隔膜阀1设置有主体2,主体2具有形成在通道之间的流入通道6,流出通道7和阀座8; 隔膜3安装在主体2中并允许搁置在阀座8上并远离阀座8; 以及安装在主体2上的驱动装置4,以允许隔膜3搁置在阀座8上并远离阀座8,其中预定厚度的合成树脂膜5涂覆在上述主体2的流体接触部分25上 和隔膜3.根据本发明的隔膜阀防止由热分解产生的物质的积聚和粘附引起的阀构件的腐蚀,并且防止由所产生的物质引起的堵塞,并且当应用于真空排气系统时防止阀座泄漏 的半导体制造设施。
    • 15. 发明申请
    • Method of Manufacturing Bellows
    • 制造波纹管的方法
    • US20090139397A1
    • 2009-06-04
    • US12327261
    • 2008-12-03
    • Tsutomu YoshidaTadahiro OhmiYasuyuki ShiraiMasafumi Kitano
    • Tsutomu YoshidaTadahiro OhmiYasuyuki ShiraiMasafumi Kitano
    • F01B19/00C23C8/18
    • C23C8/18
    • Method for producing at low cost bellows which show high durability even when used in a quite reactive atmosphere. A method for manufacturing bellows includes the steps of: I: forming an untreated bellows from a flat base plate, the base plate including 15 to 30 wt % of Cr, 5 to 40 wt % of Ni, 0.9 to 6 wt % of Al, less than 1 wt % of Mo, less than 0.1 wt % of Mn, less than 0.1 wt % of C, less than 0.1 wt % of S, less than 0.1 wt % of P and a balance of Fe and an unavoidable impurity (relative to 100 wt % of the base plate); and II: heating the untreated bellows at a temperature of 750 to 895° C. in an atmosphere which contains water and hydrogen and in which the volume ratio of hydrogen to water (H2/H2O) is in the range of 2×103 to 1×1012, thereby forming an Al2O3 passivation film on a surface of the untreated bellows.
    • 低成本波纹管的生产方法,即使在相当活跃的气氛中使用也显示出高耐用性。 制造波纹管的方法包括以下步骤:I:从平的基板形成未经处理的波纹管,基板包括15至30重量%的Cr,5至40重量%的Ni,0.9至6重量%的Al, 小于1重量%的Mo,小于0.1重量%的Mn,小于0.1重量%的C,小于0.1重量%的S,小于0.1重量%的P和余量的Fe和不可避免的杂质(相对 至100重量%); 和II:在含有水和氢的气氛中在750至895℃的温度下加热未处理的波纹管,其中氢与水的体积比(H 2 / H 2 O)在2×10 3至1×10 12的范围内,从而 在未处理的波纹管的表面上形成Al 2 O 3钝化膜。
    • 16. 发明授权
    • Diaphragm valve for the vacuum exhaustion system
    • 用于真空排气系统的隔膜阀
    • US07416165B2
    • 2008-08-26
    • US10546032
    • 2004-02-09
    • Tadahiro OhmiNobukazu IkedaMichio YamajiMasafumi KitanoAkihiro Morimoto
    • Tadahiro OhmiNobukazu IkedaMichio YamajiMasafumi KitanoAkihiro Morimoto
    • F16K31/122F16K7/17
    • F16K7/16F16K51/02
    • A diaphragm valve 1 is provided with a body 2 having a flow-in passage 6, a flow-out passage 7, and a valve seat 8 formed between the passages; a diaphragm 3 installed in the body 2 and permitted to rest on and move away from the valve seat 8; and a driving means 4 installed on the body 2 to allow the diaphragm 3 to rest on and move away from the valve seat 8, wherein synthetic resin films 5 of predetermined thickness are coated on fluid-contacting parts 25 of the afore-mentioned body 2 and diaphragm 3. A diaphragm valve in accordance with the present invention prevents corrosion of the valve members caused by accumulation and adherence of substances produced by thermal decomposition, and prevents clogging caused by substances produced, and prevents seat leakage when applied in the vacuum exhaust system of a semiconductor manufacturing facility.
    • 隔膜阀1设置有主体2,主体2具有形成在通道之间的流入通道6,流出通道7和阀座8; 隔膜3安装在主体2中并允许搁置在阀座8上并远离阀座8; 以及安装在主体2上的驱动装置4,以允许隔膜3搁置在阀座8上并远离阀座8,其中预定厚度的合成树脂膜5涂覆在上述主体2的流体接触部分25上 和隔膜3.根据本发明的隔膜阀防止由热分解产生的物质的积聚和粘附引起的阀构件的腐蚀,并且防止由所产生的物质引起的堵塞,并且当应用于真空排气系统时防止阀座泄漏 的半导体制造设施。