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    • 62. 发明授权
    • Aqueous dispersion of polyester resin, production method of the same, and aqueous coating composition
    • 聚酯树脂的水分散体,其制备方法和水性涂料组合物
    • US06818699B2
    • 2004-11-16
    • US09961412
    • 2001-09-25
    • Hiroshi KajimaruDaisuke ShirasawaToru TanakaSachiko Kokuryo
    • Hiroshi KajimaruDaisuke ShirasawaToru TanakaSachiko Kokuryo
    • C08L6702
    • C08J3/03C08J2367/00C09D167/00
    • The present invention is to provide an aqueous dispersion of polyester resin with an excellent molecular weight stability, its production method, and an aqueous coating composition. An aqueous dispersion of polyester resin having an acid value of 8 to 40 mg KOH/g and a weight average molecular weight of 9,000 or more contains an organic solvent less than 0.5% by mass. A method for producing the aqueous dispersion of polyester resin comprising a step of at first obtaining an aqueous dispersion of polyester resin containing not lower than 0.5% by mass of an organic solvent by adding the polyester resin and a basic compound to an aqueous medium to make the resulting mixture aqueous and a step of removing the organic solvent from the aqueous dispersion. An aqueous coating composition can be obtained by adding a curing agent to the foregoing aqueous dispersion of polyester resin.
    • 本发明提供具有优异分子量稳定性的聚酯树脂的水分散体,其制备方法和水性涂料组合物。 酸值为8〜40mg KOH / g,重均分子量为9000以上的聚酯树脂的水性分散体含有小于0.5质量%的有机溶剂。 一种聚酯树脂水分散体的制造方法,其特征在于,通过向所述水性介质中添加聚酯树脂和碱性化合物,首先得到含有0.5质量%以上的有机溶剂的聚酯树脂的水性分散液, 所得混合物水溶液和从水分散体中除去有机溶剂的步骤。 通过向上述聚酯树脂的水性分散体中添加固化剂可以得到水性涂料组合物。
    • 63. 发明授权
    • Optical disc changer apparatus with method of exchanging a disc
    • 具有更换光盘的方法的光盘更换装置
    • US6141314A
    • 2000-10-31
    • US317204
    • 1999-05-24
    • Kiyoshi UmesakiToru TanakaKiyonari Saruwatari
    • Kiyoshi UmesakiToru TanakaKiyonari Saruwatari
    • G11B17/04G11B17/26G11B17/30
    • G11B17/056G11B17/26G11B17/30
    • An optical disc drive apparatus including a main tray having a stack of subtrays mounted thereon and movable between withdrawn and inserted positions. When the main tray is moved to the inserted position, the subtrays stacked thereon are held at a stand-by position and a selected one of the subtrays is ready to be drawn towards a loaded position so that an optical disc resting on the selected one of the subtrays can be clamped in position and optically read out. When an optical disc resting on one of the subtrays other than the uppermost subtray then held at the loaded position is desired to be removed or replaced, not only can such one of the subtray be returned from the loaded position to the stand-by position, the main tray is allowed to withdraw from the inserted position back to the withdrawn position carrying such one of the subtrays and the subtray or subtrays positioned immediately thereabove while leaving the subtray or the subtrays positioned above such one of the subtrays at the stand-by position, so that such one of the subtrays can readily be exposed to the outside for removal or replacement of the optical disc resting thereon.
    • 一种光盘驱动装置,包括主托盘,其具有安装在其上的副托盘堆叠,并且可在撤回和插入位置之间移动。 当主托盘移动到插入位置时,堆叠在其上的副托盘被保持在待机位置,并且所选的一个子托盘准备被朝向加载位置拉出,使得光盘搁置在 子托盘可以夹紧就位并进行光学读出。 当搁置在其上一个子托盘上的光盘然后保持在装载位置时,期望被去除或更换,不仅这种子托架中的一个可以从装载位置返回到备用位置, 允许主托盘从插入位置退回到撤回位置,该位置携带这样的一个子托盘和位于其上方的子托架或副托架,同时使子托架或副托架位于这样的一个副托盘之上的待机位置 ,使得这种子托盘中的一个可以容易地暴露于外部,用于移除或更换搁置在其上的光盘。
    • 65. 发明授权
    • Magnetic disc drive apparatus
    • 磁盘驱动装置
    • US5241436A
    • 1993-08-31
    • US924406
    • 1992-08-03
    • Tomoki KawabataToru TanakaHitoshi Taniguchi
    • Tomoki KawabataToru TanakaHitoshi Taniguchi
    • G11B25/04G11B33/12
    • G11B33/121G11B25/043
    • A magnetic disc drive apparatus in which a magnetic disc rotating section and a head arm having a magnetic head are accommodated within a casing and a main printed circuit board is attached to a bottom surface side of the casing is comprised of an auxiliary printed circuit board having at least a recording/playback amplifier, a playback side frequency characteristic circuit and a playback side pulse shaping circuit and which is accommodated within the casing, the auxiliary printed circuit board being connected to the magnetic head and the main printed circuit board. Thus, recording/reproducing signals can be prevented from being deteriorated by inside or extraneous noise and space for assembly parts on the main printed circuit board can be saved.
    • 一种磁盘驱动装置,其中磁盘旋转部分和具有磁头的头臂被容纳在壳体内,并且主印刷电路板安装在壳体的底表面侧,其包括辅助印刷电路板,该辅助印刷电路板具有 至少记录/重放放大器,重放侧频率特性电路和回放侧脉冲整形电路,并且容纳在壳体内,辅助印刷电路板连接到磁头和主印刷电路板。 因此,可以防止记录/再现信号由于内部或外部噪声而劣化,并且可以节省主印刷电路板上的组装部件的空间。
    • 69. 发明授权
    • Process for producing polyolefin
    • 生产聚烯烃的方法
    • US4511704A
    • 1985-04-16
    • US537165
    • 1983-09-30
    • Toru TanakaNobuaki GohkoOsamu KishiroAtsushi Murakami
    • Toru TanakaNobuaki GohkoOsamu KishiroAtsushi Murakami
    • C08L23/00C08F2/00C08F2/04C08F2/38C08F4/00C08F4/60C08F4/64C08F10/00C08F10/02C08L23/06C08L101/00C08F4/10
    • C08F10/00Y10S526/905
    • A polyolefin is producing by polymerizing ethylene or copolymerizing ethylene and the other .alpha.-olefin at 50.degree. to 100.degree. C. in a hydrocarbon solvent in the presence of a catalyst system of an organoaluminum compound and a transition metal compound component which is a solid catalytic component containing a magnesium compound and a titanium compound under the condition (a) two step polymerizations of a first polymerization step and a second polymerization step in the presence of a reaction mixture obtained by said first polymerization step; (b) a polymerization in the presence of hydrogen at a molar ratio of H.sub.2 to C.sub.2 H.sub.4 (vapor phase) of 0.01-0.8 to produce a polymer A having a viscosity average molecular weight of 2.times.10.sup.5 -7.times.10.sup.5 at a ratio of 30 to 70 wt. % based on the total polymer in one of said first or second polymerization step and a polymerization in the presence of hydrogen at a molar ratio of H.sub.2 to C.sub.2 H.sub.4 (vapor phase) of 1.5-15 to produce a polymer B having a viscosity average molecular weight of 1.times.10.sup.4 - 4.times.10.sup.4 at a ratio of 70 to 30 wt. % based on the total polymer in the other polymerization step to give a ratio of a viscosity average molecular weight of polymer A to a viscosity average molecular weight of polymer B of 15 to 55; (c) said production of said polymer A as a copolymer of ethylene and other .alpha.-olefin and said production of said polymer B as a homopolymer of ethylene or a copolymer of ethylene and the other .alpha.-olefin; and (d) said production of the total polymer as a polymer having a melt index of less than 0.5 g/10 min.
    • 在有机铝化合物和作为固体催化剂的过渡金属化合物组分的催化剂体系的存在下,在烃溶剂中,在50℃至100℃下聚合乙烯或将乙烯和其它α-烯烃共聚制备聚烯烃 在(a)通过所述第一聚合步骤获得的反应混合物存在下进行第一聚合步骤和第二聚合步骤的两步聚合的条件下,含有镁化合物和钛化合物的组分; (b)在H 2与C 2 H 4(气相)的摩尔比为0.01-0.8的氢气存在下进行聚合,得到粘度平均分子量为2×105-7×105的聚合物A,其比例为30〜70wt。 基于所述第一或第二聚合步骤之一中的总聚合物的%,并且在氢气存在下以H 2至C 2 H 4(气相)的摩尔比为1.5-15进行聚合以产生具有粘均分子量为 1×104-4×104,比例为70〜30wt。 以聚合物A的粘均分子量与聚合物B的粘均分子量的比例为15〜55的聚合物的总聚合物为基准, (c)所述聚合物A的制备是乙烯与其它α-烯烃的共聚物,所述聚合物B的制备是乙烯均聚物或乙烯与其它α-烯烃的共聚物; 和(d)所述聚合物的总体熔融指数小于0.5g / 10分钟的聚合物。