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1. 发明授权

US4776971A Gallium arsenide single crystals with low dislocation density and high purity 失效
标题翻译：砷化镓单晶，位错密度低，纯度高
公开(公告)号：US4776971A
公开(公告)日：1988-10-11
申请号：US867514
申请日：1986-05-28
申请人： Adriano Mattera , Roberto Fornari , Renato Magnanini , Carlo Paorici , Lucio Zanotti , Giovanni Zuccalli
发明人： Adriano Mattera , Roberto Fornari , Renato Magnanini , Carlo Paorici , Lucio Zanotti , Giovanni Zuccalli
IPC分类号： C30B29/42 , C30B15/00 , C30B27/02 , H01L21/18 , H01L21/208 , C30B15/04 , C30B15/20
CPC分类号： C30B15/00 , C30B29/42
摘要： Undoped GaAs single crystals with low dislocation density, low impurity content, 0.20-1 Kg in weight and constant diameter of 1"-2" (inches), said single crystals being obtained with LEC technology at low or high pressure with synthesis of the polycrystal in situ and subsequent growth of the single crystal.
摘要翻译：未掺杂的GaAs单晶具有低位错密度，低杂质含量，重量为0.20-1Kg，1“-2”（英寸）恒定直径，所述单晶在低压或高压下用LEC技术获得，合成多晶原位和随后的单晶生长。

2. 发明授权

US5023801A Programmable - voltage - generator interface for decreasing the minimum voltage step 失效
标题翻译：可编程 - 电压 - 发生器接口，用于降低最小电压阶跃
公开(公告)号：US5023801A
公开(公告)日：1991-06-11
申请号：US323172
申请日：1989-03-15
申请人： Adriano Mattera , Roberto Fornari , Renato Magnanini , Carolo Paorici , Lucio Zanotti , Giovanni Zuccalli
发明人： Adriano Mattera , Roberto Fornari , Renato Magnanini , Carolo Paorici , Lucio Zanotti , Giovanni Zuccalli
IPC分类号： G05B19/02 , G05D23/19 , G06G7/14
CPC分类号： G06G7/14 , G05D23/1904
摘要： An interface circuit to the output of a programmable voltage ramp generator for decreasing the minimum voltage step of such a generator having two voltage channels and a minimum voltage step greater than 1 millivolt. The interface circuit receives an input from each of the two voltage channels (V.sub.2, V.sub.3), along with an inserted voltage (V.sub.1). The circuit includes a summing amplifier for (i) compressing the minimum voltage step from one voltage channel (V.sub.2) by a factor equal to or greater than such minimum voltage step, (ii) adding the voltage from the other channel (V.sub.3) to the compressed voltage, and (iii) subtracting the inserted voltage (V.sub.1) (or adding an inserted voltage which is negative). The inserted voltage (V.sub.1) is equal in magnitude to the maximum output value from the voltage channel that has the voltage compressed (V.sub.2). The output of the summing amplifier (V.sub.out) may be represented by:V.sub.out =(V.sub.3 /X)+(V.sub.2 /Y)+(V.sub.1 /Z)where X, Y, Z=attenuation or amplication factors. The interface circuit decreases the minimum voltage step at channel V.sub.2 by a factor Y down to a minimum voltage step of 1 millivolt or less.
摘要翻译：一个可编程电压斜坡发生器的输出的接口电路，用于减小具有两个电压通道的这种发电机的最小电压阶跃，以及大于1毫伏的最小电压步长。接口电路接收来自两个电压通道（V2，V3）中的每一个的输入以及插入的电压（V1）。该电路包括一个加法放大器，用于（i）将来自一个电压通道（V2）的最小电压阶跃压缩等于或大于该最小电压阶跃的因子，（ii）将来自另一个通道（V3）的电压加到压缩电压，以及（iii）减去插入电压（V1）（或加上为负的插入电压）。插入电压（V1）的大小与从压缩电压（V2）的电压通道的最大输出值相等。求和放大器（Vout）的输出可以由下式表示：Vout =（V3 / X）+（V2 / Y）+（V1 / Z）其中X，Y，Z =衰减或放大因子。接口电路将通道V2处的最小电压阶降低到一个1毫伏或更小的最小电压步长。

3. 发明授权

US4560522A Process for preparing poly-piperazinamide anisotropic shaped articles 失效
标题翻译：制备聚哌嗪酰胺各向异性成型制品的方法
公开(公告)号：US4560522A
公开(公告)日：1985-12-24
申请号：US509655
申请日：1983-06-30
申请人： Catia Bastioli , Giuseppe Gianotti , Adriano Mattera , Paolo Parrini
发明人： Catia Bastioli , Giuseppe Gianotti , Adriano Mattera , Paolo Parrini
IPC分类号： B29D99/00 , B01D71/56 , B29B7/00 , B29C47/00 , B29C47/88 , B29C59/00 , B29C69/00 , C08J5/02 , C08J5/18 , C08J9/28 , D01D5/24 , D01F6/60 , D01F6/00
CPC分类号： B01D71/56 , D01D5/24
摘要： Process for preparing poly-piperazinamide, anisotropic shaped articles comprising the preparation of the polymer solution in a polar organic solvent, the transformation of the solution into shaped bodies by spreading or spinning, the gelation of the shaped articles by phase inversion, and, optionally, the heat treatment of the gellified shaped articles.
摘要翻译：制备聚哌嗪酰胺的方法，包括在极性有机溶剂中制备聚合物溶液的各向异性成型制品，通过铺展或纺丝将溶液转化成成形体，通过相转化将成型制品凝胶化，胶凝成型制品的热处理。

4. 发明授权

US4402835A Process for removing soluble boron compounds from aqueous effluents 失效
标题翻译：从含水废水中除去可溶性硼化合物的方法
公开(公告)号：US4402835A
公开(公告)日：1983-09-06
申请号：US319923
申请日：1981-11-10
申请人： Adriano Mattera , Marino Quaglino , Pasqualino Spighi , Massimo Stolfi
发明人： Adriano Mattera , Marino Quaglino , Pasqualino Spighi , Massimo Stolfi
IPC分类号： C02F1/52
CPC分类号： C02F1/5236 , Y10S210/902
摘要： Disclosed is a process for removing boron compounds from aqueous effluents. The effluents are contacted, under stirring, with a divalent metal sulphate Me.sub.I SO.sub.4 and a divalent metal hydroxyde Me.sub.II (OH).sub.2, the sulphate-hydroxyde couple being selected from the group consisting of BeSO.sub.4 --Ba(OH).sub.2 ; BeSO.sub.4 --Sr(OH).sub.2 ; BeSO.sub.4 --Ca(OH).sub.2 ; MgSO.sub.4 --Ba(OH).sub.2 ; MgSO.sub.4 --Sr(OH).sub.2 ; MgSO.sub.4 --Ca(OH).sub.2 ; CaSO.sub.4 --Ba(OH).sub.2 ; CaSO.sub.4 --Sr(OH).sub.2 ; SrSO.sub.4 --Ba(OH).sub.2 ; ZnSO.sub.4 --Ba(OH).sub.2 ; ZnSO.sub.4 --Sr(OH).sub.2 ; ZnSO.sub.4 --Ca(OH).sub.2 ; CdSO.sub.4 --Ba(OH).sub.2 ; CdSO.sub.4 --Sr(OH).sub.2 and CdSO.sub.4 --Ca(OH).sub.2. The sulfate Me.sub.I SO.sub.4 and the hydroxide Me.sub.II (OH).sub.2, by reaction with each other, cause the sulphate Me.sub.II SO.sub.4 and the hydroxide Me.sub.I (OH).sub.2 to precipitate.The amount of Me.sub.II (OH).sub.2 is at least stoichiometric in respect of the amount of Me.sub.I SO.sub.4 and the precipitation pH is within the range of 7 to 10 when Me.sub.I SO.sub.4 is ZnSO.sub.4, and 10 to 13 in the other cases.At the end of the precipitation the mixture is subjected to decantation and to filtration or centrifugation, thus separating the boron-containing precipitate from the purified effluents.
摘要翻译：公开了从含水废水中除去硼化合物的方法。在搅拌下将废水与二价金属硫酸盐MeISO4和二价金属氢氧化物MeII（OH）2接触，所述硫酸盐 - 羟基二对选自由下列组成的组：BeSO 4 -Ba（OH）2; BeSO4-Sr（OH）2; BeSO4-Ca（OH）2; MgSO4-Ba（OH）2; MgSO4-Sr（OH）2; MgSO4-Ca（OH）2; CaSO4-Ba（OH）2; CaSO4-Sr（OH）2; SrSO4-Ba（OH）2; ZnSO4-Ba（OH）2; ZnSO4-Sr（OH）2; ZnSO4-Ca（OH）2; CdSO4-Ba（OH）2; CdSO4-Sr（OH）2和CdSO4-Ca（OH）2。硫酸盐MeISO4和氢氧化物MeII（OH）2通过彼此反应，导致硫酸盐MeIISO4和氢氧化物MeI（OH）2沉淀。 MeI（OH）2的量相对于MeISO 4的量至少为化学计量，当MeISO 4为ZnSO 4时，沉淀pH为7〜10，其余情况为10〜13。在沉淀结束时，将混合物进行倾析和过滤或离心，从而将含硼沉淀物与纯化的流出物分离。

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