会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • PARTIALLY-FILLED ELECTRODE-TO-RESONATOR GAP
    • 部分填充电极 - 谐振器间隙
    • WO2009097167A2
    • 2009-08-06
    • PCT/US2009030148
    • 2009-01-05
    • UNIV CALIFORNIANGUYEN CLARK TU-CUONGHUNG LI-WEN
    • NGUYEN CLARK TU-CUONGHUNG LI-WEN
    • H03H9/2436H03H2009/02503
    • Method and apparatus for lowering capacitively-transduced resonator impedance within micromechanical resonator devices. Fabrication limits exist on how small the gap spacing can be made between a resonator and the associated input and output electrodes in response to etching processes. The present invention teaches a resonator device in which these gaps are then fully, or more preferably partially filled with a dielectric material to reduce the gap distance. A reduction of the gap distance substantially lowers the motional resistance of the micromechanical resonator device and thus the capacitively-transduced resonator impedance. Micromechanical resonator devices according to the invention can be utilized in a wide range of UHF devices, including integration within ultra-stable oscillators, RF filtering devices, radar systems, and communication systems.
    • 用于降低微机械谐振器装置内的电容性转换的谐振器阻抗的方法和装置。 对于响应于蚀刻工艺的谐振器和相关的输入和输出电极之间的间隙间隔可以有多小而存在制造限制。 本发明教导了一种谐振器装置,其中这些间隙然后完全或者更优选地部分地填充有介电材料以减小间隙距离。 间隙距离的减小实质上降低了微机械谐振器装置的运动阻力,并由此降低了电容转换的谐振器阻抗。 根据本发明的微机械谐振器装置可用于各种UHF装置中,包括集成在超稳定振荡器,RF滤波装置,雷达系统和通信系统内。
    • 6. 发明申请
    • NUCLEATED ISOTACTIC POLYPROPYLENE
    • 核聚异构聚丙烯
    • WO2008124212A1
    • 2008-10-16
    • PCT/US2008/054356
    • 2008-02-20
    • EXXONMOBILE CHEMICAL PATENTS INC.THURMAN, DerekDATTA, SudhinLI, WenSIMS, Charles, L.
    • THURMAN, DerekDATTA, SudhinLI, WenSIMS, Charles, L.
    • C08L23/10C08L23/14C08L23/12
    • C08L23/10C08L23/12C08L23/142C08L2205/02C08L2666/06
    • Low molecular weight semicrystalline propylene-alpha olefin copolymers containing propylene crystallinity are used as a nucleating agent in crystalline polypropylene and polypropylene copolymers. The nucleating copolymers are propylene-alpha olefin copolymers having a percent crystallinity of 5 - 75%, a melting point of 45°C - 1050C, and an MFR between 300 and 5000 g/10 min. Nucleated polypropylene compositions comprise a nucleating amount of the copolymer blended in a matrix of polypropylene homopolymer, or 0.01 to 9 wt% α-olefin copolymer, having a melting point greater than 1100C. The nucleating copolymer improves processing time with little or no effect on the crystallinity-associated characteristics of the matrix. The invention also provides methods of crystallizing polypropylene with the nucleating agent and of forming articles with the composition, and also provides articles formed from the composition and/or by the method.
    • 含有丙烯结晶度的低分子量半结晶丙烯-α-烯烃共聚物用作结晶聚丙烯和聚丙烯共聚物中的成核剂。 成核共聚物是结晶度为5〜75%,熔点为45〜1050℃,MFR为300〜5000g / 10分钟的丙烯-α-烯烃共聚物。 成核聚丙烯组合物包含共聚量在聚丙烯均聚物基质中的成核量,或0.01至9重量%的α-烯烃共聚物,其熔点大于110℃。 成核共聚物改善了处理时间,对基体的结晶度相关特性几乎没有或没有影响。 本发明还提供了使聚丙烯与成核剂结晶并形成具有该组合物的制品的方法,还提供了由该组合物和/或该方法形成的制品。