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    • 1. 发明授权
    • Method of phase transition, method for producing lead niobate-based
complex oxide utilizing said phase transition method, and lead
niobate-based complex oxide produced by said method
    • 相变方法,利用所述相变法生产铌酸铋基复合氧化物的方法,以及由所述方法生产的铌酸铅复合氧化物
    • US5192723A
    • 1993-03-09
    • US754015
    • 1991-09-03
    • Takamitsu FujiuAkira TanakaKenichi MuramatsuTetsuo Hattori
    • Takamitsu FujiuAkira TanakaKenichi MuramatsuTetsuo Hattori
    • C04B35/499
    • C04B35/499
    • A method for producing a lead niobate-based complex oxide with an elevated proportion of pervoskite phase and lead niobate-based complex oxide produced by such method enables manufacture of small actuator or capacitor with an elevated dielectric constant k. Treatment of a raw material represented by a general formula Pb(A.sub.1/3 Nb.sub.#)x(ZN.sub.1/3 Nb.sub.2/3) yO.sub.3 or Pb(Fe.sub.1/2 Nb.sub.1/2)x(Zn.sub.1/3 Nb.sub.2/3) yO.sub.3 (wherein A is Mg or Ni; x is an atomic ratio in a range of 0-1; and y is an atomic ratio in a range of 1-0, with a relation x+y=1) and containing pyrochlore phase, under a high temperature of 500.degree.-1300.degree. C. and a high pressure of 1000-4000 kg/cm.sup.2, causes transition of pyrochlore phase into perovskite phase, thereby increasing the proportion of perovskite phase. Also treatment of a raw material represented by a general formula uPb(.sub.1/3 Nb.sub.2/3)O.sub.3 -vPbTiO.sub.3 (wherein u is an atomic ratio in a range of 0.5-1; and v is an atomic ratio in a range of 0.5- 0, with a relation u+v=1) and containing pyrochlore phase, under a high temperature of 500.degree.-1300.degree. C. and a high pressure of 1000-4000 kg/cm.sup.2 causes transition of pyrochlore phase into perovskite phase, thereby increasing the proportion of pervoskite phase.
    • 通过这种方法生产的以铌酸酯相和以铌酸铅为主的复合氧化物的比例提高的生产铌酸铌基复合氧化物的方法使得能够制造具有升高的介电常数k的小型致动器或电容器。 由通式Pb(A1 / 3Nb#)x(ZN1 / 3Nb2 / 3)yO3或Pb(Fe1 / 2Nb1 / 2)x(Zn1 / 3Nb2 / 3)yO3表示的原料的处理(其中A是Mg或 Ni; x是0-1的范围内的原子比,Y是在1-0的范围内的原子比,x + y = 1),并且在500℃的高温下含有烧绿石相 -1300℃,高压1000-4000kg / cm2,引起烧绿石相转变为钙钛矿相,从而增加钙钛矿相的比例。 还可以处理由通式uPb(1 / 3Nb2 / 3)O3-vPbTiO3(其中u是0.5-1的范围内的原子比)表示的原料,v是0.5-0的范围内的原子比 ,具有关系u + v = 1)并且含有烧绿石相,在500℃-1300℃的高温和1000-4000kg / cm2的高压下引起烧绿石相转变成钙钛矿相,从而增加 渗透相的比例。
    • 2. 发明授权
    • Display and method for producing it
    • 显示及其制作方法
    • US5817255A
    • 1998-10-06
    • US705525
    • 1996-08-29
    • Akira TanakaTetsuo HattoriMotoyuki Toki
    • Akira TanakaTetsuo HattoriMotoyuki Toki
    • G02F1/13C09K19/54G02F1/1333G02F1/135C09K19/52F21V9/00
    • C09K19/54Y10T428/1005Y10T428/1055
    • A display has a liquid crystal composite layer interposed between a pair of substrates on which electrodes-are formed. The liquid crystal composite layer is comprised of a matrix and liquid crystal droplets dispersed therein. The matrix is composed of an inorganic oxide or its gel of the formula MOx (M: one or more metal elements selected from, La, Y, Ti, Zr, Hf, V, Nb, Ta, Al, Ga, Ge, Pb or Sb; x: half of the total valence number of the one or more metal elements), or a mixture thereof with an inorganic oxide or its gel of formula ABOx (A: one or more metal elements selected from alkaline earth metals, rare earth metals or Pb; B: one or more metal elements of transition metals; x: a number larger than 0 (zero) and not-larger than 3). A polymer soluble in polar solvent may be added to adjust the dielectric constant of the matrix.
    • 显示器具有插入在其上形成有电极的一对基板之间的液晶复合层。 液晶复合层由分散在其中的基质和液晶微滴组成。 该基质由式MO x(M:La,Y,Ti,Zr,Hf,V,Nb,Ta,Al,Ga,Ge,Pb中选出的一种或多种金属元素的无机氧化物或其凝胶组成) Sb; x:一种或多种金属元素的总价数的一半)或其与无机氧化物或其式ABO x的凝胶的混合物(A:一种或多种选自碱土金属,稀土金属的金属元素 或Pb; B:过渡金属的一种或多种金属元素; x:大于0(零)且不大于3的数字。 可以加入可溶于极性溶剂的聚合物以调节基质的介电常数。
    • 6. 发明授权
    • Communication sheet structure
    • 通讯单结构
    • US08570240B2
    • 2013-10-29
    • US12996839
    • 2008-06-27
    • Akira TanakaMachiko OouchidaHiroyuki Mori
    • Akira TanakaMachiko OouchidaHiroyuki Mori
    • H01Q1/36
    • H04B13/00
    • A communication sheet structure for transmitting electromagnetic waves, and thereby performing communication, is characterized in that the communication sheet structure includes a planar base material with a relative dielectric constant at a frequency of from 800 MHz to 10 GHz of from 1.0 to 15.0, and one side of the base material includes conductor A existing portion and non-existing portion, and the other side of the base material includes a conductor B existing over 90% or more thereof. The communication sheet structure enables communication in two dimensions, and the communication sheet structure is extremely excellent in communication performances.
    • 用于传送电磁波,从而进行通信的通信片结构的特征在于,通信片结构包括平面基底材料,其相对介电常数在800MHz至10GHz的频率范围为1.0至15.0,一个 基体材料的一侧包括导体A存在部分和不存在部分,并且基材的另一侧包括存在于其中90%以上的导体B. 通信片结构使得能够在二维方面进行通信,并且通信片结构在通信性能方面非常优异。
    • 8. 发明授权
    • Light emitting device
    • 发光装置
    • US08410473B2
    • 2013-04-02
    • US13291176
    • 2011-11-08
    • Akira Tanaka
    • Akira Tanaka
    • H01L29/06
    • H01L33/06B82Y20/00H01L33/025H01L33/32H01S5/309H01S5/34333
    • A light emitting device includes: a first layer made of a semiconductor of a first conductivity type; a second layer made of a semiconductor of a second conductivity type; an active layer including a multiple quantum well provided between the first layer and the second layer, impurity concentration of the first conductivity type in each barrier layer of the multiple quantum well having a generally flat distribution or increasing toward the second layer, average of the impurity concentration in the barrier layer on the second layer side as viewed from each well layer of the multiple quantum well being equal to or greater than average of the impurity concentration in the barrier layer on the first layer side, and average of the impurity concentration in the barrier layer nearest to the second layer being higher than average of the impurity concentration in the barrier layer nearest to the first layer.
    • 发光器件包括:由第一导电类型的半导体制成的第一层; 由第二导电类型的半导体制成的第二层; 包括设置在第一层和第二层之间的多量子阱的有源层,多量子阱的每个势垒层中的第一导电类型的杂质浓度具有大致平坦的分布或朝着第二层增加,杂质的平均值 从多量子阱的各阱层观察的第二层侧的阻挡层的浓度等于或大于第一层侧的阻挡层中的杂质浓度的平均值,以及 最靠近第二层的阻挡层高于最靠近第一层的势垒层中的杂质浓度的平均值。