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    • 2. 发明授权
    • X-ray target assembly and methods for manufacturing same
    • X射线靶组件及其制造方法
    • US08059785B2
    • 2011-11-15
    • US11851333
    • 2007-09-06
    • David S. K. LeeJohn E. Postman
    • David S. K. LeeJohn E. Postman
    • H01J35/26
    • H01J35/10B23K1/0008B23K35/32B23K35/322B23K35/325B23K35/3601H01J35/105H01J2235/084H01J2235/1204
    • The x-ray target assemblies have an oxide dispersion strengthened (ODS) refractory metal alloy substrate that is bonded to a carbon-containing heat sink. The x-ray target assemblies have excellent bonding between the substrate and the heat sink. The improved bonding is achieved by placing an oxide-free barrier layer between the ODS metal substrate and the heat sink. The oxide-free barrier layer minimizes or eliminates chemical reactions that would otherwise be possible between the dispersed oxides and the carbon-based heat sink during the manufacturing process. Preventing these undesired reactions while manufacturing the x-ray target assembly yields a device with improved bonding between the heat sink and the substrate, compared to devices manufactured without the barrier layer.
    • X射线靶组件具有结合到含碳散热器的氧化物分散强化(ODS)难熔金属合金基底。 x射线靶组件在衬底和散热器之间具有优异的接合。 通过在ODS金属基板和散热器之间放置无氧化物阻挡层来实现改进的接合。 无氧化物阻挡层在制造过程中最小化或消除了在分散的氧化物和碳基散热器之间可能的化学反应。 与制造没有阻挡层的装置相比,在制造x射线靶组件时防止这些不期望的反应产生了具有改进的散热器和衬底之间的结合的装置。
    • 3. 发明授权
    • Composite stator
    • 复合定子
    • US07127034B1
    • 2006-10-24
    • US10358937
    • 2003-02-05
    • David S. K. LeePaul D. MooreJohn E. Postman
    • David S. K. LeePaul D. MooreJohn E. Postman
    • H01J35/10H01J35/00
    • H01J35/10H01J2235/104H02K1/148H02K3/28H02K5/128
    • A composite stator is disclosed for use with rotationally driven apparatus, particularly high voltage x-ray tubes. The composite stator generally comprises a core, a plurality of motor windings, and a retaining band. The core is comprised of two or more core sections having slots defined therein for receiving the motor windings. The motor windings are wound through and between the slots of the core sections, after which the core sections are joined together to form the core. The core sections are maintained in an assembled configuration by the retaining band. The motor windings are interconnected to comprise the electromagnetic pole pairs of the composite stator, thereby allowing the stator to induce the rotation of the rotor assembly of the high voltage x-ray tube.
    • 公开了一种用于旋转驱动设备,特别是高压x射线管的复合定子。 复合定子通常包括芯,多个电动机绕组和保持带。 芯部由两个或多个具有限定在其中用于接收电机绕组的槽的芯部分组成。 电动机绕组被卷绕在芯部分的槽之间,之后芯部分连接在一起以形成芯部。 芯部通过保持带保持在组装构造中。 马达绕组被互连以包括复合定子的电磁极对,从而允许定子引起高压x射线管的转子组件的旋转。
    • 4. 发明授权
    • Method for manufacturing x-ray tubes
    • X射线管制造方法
    • US06749101B1
    • 2004-06-15
    • US10651775
    • 2003-08-29
    • David S. K. LeeRichard R. Sano
    • David S. K. LeeRichard R. Sano
    • B23K2008
    • H01J35/10B23K20/085H01J9/02H01J2235/10
    • A method for manufacturing x-ray tube parts wherein metallic pieces are explosively bonded together to establish a high strength, stable union between them. The x-ray tube parts may then be milled from the bonded metallic pieces. The explosion bonding process creates only discrete intermetallic components in the joint region instead of a continuous, weakening intermetallic layer common in brazed joints. An explosion bond joint is characterized by a wavelike interface, thereby increasing surface area over which the components are bonded and further increasing bond integrity. Rotor sleeves and other tube components may be manufactured using this method.
    • 一种制造X射线管部件的方法,其中金属片爆炸地结合在一起以在它们之间建立高强度,稳定的联合。 然后可以将X射线管部分从结合的金属片上研磨。 爆炸结合过程在接合区域中仅产生离散的金属间部件,而不是在钎焊接头中常见的连续弱化金属间层。 爆炸接头的特征在于波纹状界面,从而增加部件结合在一起的表面积,进一步提高粘结完整性。 可以使用该方法制造转子套筒和其它管部件。
    • 5. 发明授权
    • Method and apparatus for a multi-chip module that is testable and reconfigurable based on testing results
    • 基于测试结果可测试和可重新配置的多芯片模块的方法和装置
    • US06351681B1
    • 2002-02-26
    • US09197720
    • 1998-11-23
    • David ChihLee K. LauKeith S. K. Lee
    • David ChihLee K. LauKeith S. K. Lee
    • G06F1900
    • G01R31/318513G01R31/318505G06F11/20G06F15/7867
    • A method and apparatus for a multi-chip module that is testable and reconfigurable based on testing results is accomplished by a multi-chip module that includes a first circuit disposed on a first chip substrate, a second circuit disposed on second chip substrate, and an interconnecting substrate operably coupled to the first chip substrate and the second chip substrate. The interconnecting substrate connects the first circuit to the second circuit. The interconnecting substrate includes external connectors for accessing signals within the multi-chip module, which allow the multi-chip module to be fully tested. This testing may include isolating the first circuit and/or the second circuit by disabling other circuits in order to allow each of the circuits to be exercised without interference from other circuits. After testing the multi-chip module, configuration circuitry included on the multi-chip module may be used to reconfigure the multi-chip module based on results of the testing.
    • 一种基于测试结果可测试和可重新配置的多芯片模块的方法和装置由多芯片模块实现,该多芯片模块包括设置在第一芯片基板上的第一电路,以及设置在第二芯片基板上的第二电路, 互连衬底,其可操作地耦合到第一芯片衬底和第二芯片衬底。 互连基板将第一电路连接到第二电路。 互连基板包括用于访问多芯片模块内的信号的外部连接器,其允许多芯片模块被完全测试。 该测试可以包括通过禁用其他电路来隔离第一电路和/或第二电路,以便允许每个电路在没有来自其他电路的干扰的情况下被行使。 在测试多芯片模块之后,可以使用包括在多芯片模块上的配置电路基于测试结果来重新配置多芯片模块。
    • 6. 发明授权
    • Credit verification system
    • 信用验证系统
    • US5231570A
    • 1993-07-27
    • US625477
    • 1990-12-11
    • Gerritt S. K. Lee
    • Gerritt S. K. Lee
    • G06Q20/24G06Q20/40G07F7/08
    • G06Q20/4037G06Q20/24G06Q40/025G07F7/08
    • A credit card status verification system is disclosed in which the status of very large numbers of credit cards is contained and accessed from a compact storage media, such as a CD-ROM disk, at a remote location, thereby eliminating the necessity of obtaining the status information from a centrally located facility via a communication link. A data mapping algorithm is employed to map credit card numbers to status containing locations within memory without requiring large amounts of memory space for addressing. A multiple level screening process is employed for checking the validity of a credit card number and the credit status of a credit card which is both quick and economical.
    • 公开了一种信用卡状态验证系统,其中非常大量的信用卡的状态从远程位置的诸如CD-ROM盘之类的紧凑型存储介质容纳和访问,从而消除了获得状态的必要性 来自中心位置的设施通过通信链路的信息。 采用数据映射算法将信用卡号映射到包含存储器内的位置的状态,而不需要大量的存储器空间进行寻址。 采用多层次筛选过程,检查信用卡号码的有效性和信用卡的信用状况,既快捷又经济。
    • 7. 发明授权
    • Substrate for detecting UL9 helicase activity
    • 用于检测UL9解旋酶活性的底物
    • US6096502A
    • 2000-08-01
    • US50559
    • 1998-03-30
    • Sam S.-K. Lee
    • Sam S.-K. Lee
    • C12Q1/68C12Q1/70C07H19/00C07H21/02
    • C12Q1/533G01N2333/03
    • A UL9 substrate for detecting helicase activity in a UL9 protein is provided. In one embodiment, the substrate includes a first strand including a herpes replication origin sequence and a first single stranded tail; and a second strand including a sequence complementary to the herpes replication origin sequence. In one variation, the first single stranded tail is 3' relative to the herpes replication origin sequence. The second strand may optionally further include a single stranded tail. The single stranded tail on the second strand may be 3' or 5' relative to the sequence complementary to the herpes replication origin sequence. In another variation, the first single stranded tail is 5' relative to the herpes replication origin sequence. The second strand may optionally further include a single stranded tail. The single stranded tail on the second strand may be 3' or 5' relative to the sequence complementary to the herpes replication origin sequence. The UL9 substrate may optionally further include at least one detectable marker attached to at least one of the first and second strands. The UL9 substrate may also optionally be attached to a solid support.
    • 提供了用于检测UL9蛋白中的解旋酶活性的UL9底物。 在一个实施方案中,所述底物包括包含疱疹复制起始序列和第一单链尾部的第一链; 和包含与疱疹复制起始序列互补的序列的第二链。 在一个变型中,第一单链尾相对于疱疹复制起始序列是3'。 第二链可以任选地进一步包括单链尾。 第二链上的单链尾部可以相对于与疱疹复制起始序列互补的序列为3'或5'。 在另一个变体中,第一单链尾相对于疱疹复制起始序列是5'。 第二链可以任选地进一步包括单链尾。 第二链上的单链尾部可以相对于与疱疹复制起始序列互补的序列为3'或5'。 UL9底物可以任选地进一步包括连接到第一和第二链中的至少一个的至少一个可检测标记。 UL9基材也可以任选地连接到固体支持物上。
    • 8. 发明授权
    • Measurement of fiber diameters with high precision
    • 高精度测量纤维直径
    • US5309221A
    • 1994-05-03
    • US816882
    • 1991-12-31
    • Frederic P. FischerPatrick S. K. LeeRaymond C. LogueThomas W. Parks
    • Frederic P. FischerPatrick S. K. LeeRaymond C. LogueThomas W. Parks
    • G01B11/10G01M11/00G01B9/02
    • G01M11/37G01B11/105
    • Methods for measuring the diameters of transparent filaments with high precision, e.g., RMS standard deviations of less than 0.02 microns, are provided. The methods involve determining the average spatial frequency .omega. of the far-field interference pattern produced by illuminating the filament with a beam of laser light. The average spatial frequency is determined by performing a fast Fourier transform (FFT) on the interference data to obtain a coarse estimate for the average and then performing a set of discrete sequence Fourier transforms (DSFTs) in the region of the coarse estimate to obtain the desired high precision estimate of the average. Efficient on-line processing procedures are provided so that real time measurements can be performed on, for example, a moving optical waveguide fiber, at rates of 500 measurements/second and above.
    • 提供了用于以高精度测量透明长丝的直径的方法,例如RMS标准偏差小于0.02微米。 所述方法包括确定通过用激光束照射细丝而产生的远场干涉图案的平均空间频率ω。 通过对干扰数据执行快速傅立叶变换(FFT)来确定平均空间频率,以获得平均值的粗略估计,然后在粗估计区域中执行一组离散序列傅里叶变换(DSFT),以获得 期望的高精度估计的平均值。 提供了有效的在线处理程序,使得可以以例如500个测量/秒以上的速率在例如移动光波导光纤上进行实时测量。