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14 条记录 (耗时 0.015 秒)

    Flexible articles formed from polyurethanes by RIM processes
    2.
    发明授权
    Flexible articles formed from polyurethanes by RIM processes 失效
    通过RIM工艺由聚氨酯形成的柔性制品

    公开(公告)号：US5063017A

    公开(公告)日：1991-11-05

    申请号：US502597

    申请日：1990-03-30

    申请人： Jae H. Choi

    发明人： Jae H. Choi

    IPC分类号： B29C67/24 ,  C08G18/08 ,  C08G18/69 ,  C08G18/76

    CPC分类号： C08G18/7671 ,  B29C67/246 ,  C08G18/08 ,  C08G18/698 ,  B29K2075/00 ,  B29K2105/0002 ,  C08G2120/00

    摘要： A wide variety of products are formed by compression molding of silicone materials. Although such articles are used in numerous applications, compression molding is expensive and exudation of unreacted monomers and oligomers tend to cause electrical contact failures. By employing specific polyurethanes formed from polyols and isocyanates, it is possible to form articles by reaction injection molding. This process is substantially cheaper than compression molding and yet the same properties obtainable with silicones are attained.

    摘要翻译： 通过硅胶材料的压缩成型形成各种各样的产品。 虽然这种制品用于许多应用中，但是压缩成型是昂贵的，并且未反应的单体和低聚物的渗出倾向于引起电接触故障。 通过使用由多元醇和异氰酸酯形成的特定聚氨酯，可以通过反应注射成型形成制品。 该方法基本上比压缩成型便宜，但是可获得与硅酮可获得的相同的性质。

    Systems Method and Methods for Perfusing Tissue Distal to an Arterial Occlusion
    4.
    发明申请
    Systems Method and Methods for Perfusing Tissue Distal to an Arterial Occlusion 审中-公开

    公开(公告)号：US20190298919A1

    公开(公告)日：2019-10-03

    申请号：US16369217

    申请日：2019-03-29

    申请人： John Pile-Spellman ,  Jae H. Choi

    发明人： John Pile-Spellman ,  Jae H. Choi

    IPC分类号： A61M5/172

    摘要： This application describes a method and device for safely, effectively, perfusing distal to occluded arteries, based on diagnostic information from the catheter-perfusion-system based on sensors, effectors, controllers and algorithms included, with particular attention to the specific characteristics of the tissue and the fluid. Key actionable physiological values for the tissue can be calculated and derived. They include the auto-regulatory curve, with Upper and Lower limits of Auto regulation, vascular reserve, and collateral flow reserve and as auto-regulation exhaustion.

    NON-DESTRUCTIVE THERMAL CONDUCTIVITY DETECTOIN OF SOLDER VOIDS
    5.
    发明申请
    NON-DESTRUCTIVE THERMAL CONDUCTIVITY DETECTOIN OF SOLDER VOIDS 有权
    非破坏性的电导率的电导率检测

    公开(公告)号：US20110278455A1

    公开(公告)日：2011-11-17

    申请号：US12779848

    申请日：2010-05-13

    申请人： Jae H. Choi ,  Mark D. Woolley

    发明人： Jae H. Choi ,  Mark D. Woolley

    IPC分类号： G02F1/01 ,  G01N21/84

    CPC分类号： G01R31/048 ,  G01R31/311

    摘要： Systems and methods can produce thermal images of the mounting of a thermally-enhanced integrated circuit (IC) upon a circuit board. The system includes a thermal imaging camera that is operable to image the thermal dissipation and/or conduction through the heat sink into a mounting pad on the substrate. In testing the thermally-enhanced IC, the substrate or IC is connected to a power source, and the IC is operated such that the IC begins to generate heat. As the heat is conducted or dissipated through the heat sink into the mounting pad, a thermal imaging camera can detect the heat conduction and/or dissipation through the heat sink into the substrate. If there are voids or other types of failures in the mounting of the IC, the thermal imaging camera can detect cooler or colder spots in the image.

    摘要翻译： 系统和方法可以产生在电路板上安装热增强集成电路（IC）的热图像。 该系统包括热成像相机，其可操作以将通过散热器的散热和/或传导成像到基板上的安装焊盘。 在测试热增强IC时，衬底或IC连接到电源，并且IC被操作以使得IC开始发热。 当热量通过散热器传导或散发到安装垫中时，热成像相机可以检测通过散热器进入基板的热传导和/或耗散。 如果安装IC有空隙或其他类型的故障，则热成像相机可以检测到图像中较冷或较冷的斑点。

    Systems method and methods for perfusing tissue distal to an arterial occlusion
    10.
    发明授权
    Systems method and methods for perfusing tissue distal to an arterial occlusion 有权

    公开(公告)号：US11471596B2

    公开(公告)日：2022-10-18

    申请号：US16369217

    申请日：2019-03-29

    申请人： John Pile-Spellman ,  Jae H. Choi

    发明人： John Pile-Spellman ,  Jae H. Choi

    IPC分类号： A61M5/172 ,  A61M5/168

    摘要： This application describes a method and device for safely, effectively, perfusing distal to occluded arteries, based on diagnostic information from the catheter-perfusion-system based on sensors, effectors, controllers and algorithms included, with particular attention to the specific characteristics of the tissue and the fluid. Key actionable physiological values for the tissue can be calculated and derived. They include the auto-regulatory curve, with Upper and Lower limits of Auto regulation, vascular reserve, and collateral flow reserve and as auto-regulation exhaustion.