AP Patents :
26

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Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 26
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Issue DateTitleAuthor(s)
18-Sep-2013Rotary ultrasonic imaging system = 旋转超声成像系统Lin, Guohao (林國豪); Chen, Yan (陳燕); Dai, Jiyan (戴吉岩); Chan, Helen L. W. (陳王麗華)
17-Sep-2013Fabrication of piezoelectric single crystalline thin layer on silicon waferPeng, Jue; Chao, Chen; Dai, Jiyan; Chan, Helen L. W.
25-Jul-2012Thin-film phase shifter for micro-wave filter network and preparation = 微波滤波网络薄膜移相器及其制备方法Wang, Yu (王雨); Chan, Helen L. W. (陳王麗華); Chen, Xuejiao (陳雪嬌)
14-Sep-2011Driver for an ultrasonic transducer and an ultrasonic transducer = 用于超声波换能器的驱动器以及超声波换能器Or, Derek Siu-wing (柯少榮); Yung, Chung-sheung (容中尚); Chan, Helen L. W. (陳王麗華)
26-Oct-2010Method and apparatus for measuring oscillation amplitude of an ultrasonic deviceChan, Helen L. W.; Lam, Tin-yan; Chao, Chen; Kwok, Kin-wing
25-Aug-2010Sodium potassium niobate barium zirconate titanate series lead-free piezoelectric ceramic composition = 铌酸钠钾锆钛酸钡系无铅压电陶瓷组合物Lin, Dunmin (賃敦敏); Kwok, Kin-wing (郭建榮); Chan, Helen L. W. (陳王麗華)
21-Jan-2004焊接工具Chan, Helen L. W. (陳王麗華); Or, Derek Siu-wing (柯少榮); Choy, Chung-loong (蔡忠龍)
31-Aug-2005Piezoelectric ceramic step-up transformer in bending vibration mode and its making process = 弯曲振动模式压电陶瓷升压变压器Zhang, Yu (張彧); Hu, Junhui (胡俊輝); Chan, Helen L. W. (陳王麗華); Choy, Chung-loong (蔡忠龍)
24-Aug-2005Ultrasonic transducer = 超声换能器Chan, Helen L. W. (陳王麗華); Or, Derek Siu-wing (柯少榮); Cheng, Kei-chun (鄭基駿); Choy, Chung-loong (蔡忠龍)
20-Jul-2005Stepdown piezoelectric ceramic autotransformer and its making process = 自耦式压电陶瓷降压变压器及其制备方法Chan, Helen L. W. (陳王麗華); Li, Guorong (李國榮); Hu, Junhui (胡俊輝); Choy, Chung-loong (蔡忠龍)
21-Jan-2004Piezoelectric sensor for welding parameter measurement = 测量焊接参数用的压电传感器Chan, Helen L. W. (陳王麗華); Chiu, Siu San (趙小珊); Or, Derek Siu-wing (柯少榮); Cheung, Yiu Ming (張耀明)
27-Jun-2001Piezoelectric ceramics - piezoelectric polymer compound material and making method = 压电陶瓷 - 压电性聚合物复合材料及其制造方法Chan, Helen L. W. (陳王麗華); Zhou, Qifa (周歧發); Choy, Chung-loong (蔡忠龍); Zhang, Qingqi (張清琦)
17-Aug-2010Magnetorheological damper and use thereofOr, Derek Siu-wing; Ni, Yiqing; Duan, Yuanfeng
8-Sep-2009Process and apparatus for fabricating nano-floating gate memories and memory made therebyDai, Jiyan; Lu, Xubing; Lee, Pui-fai
9-Dec-2008Driver for an ultrasonic transducer and an ultrasonic transducerOr, Derek Siu-wing; Yung, Chung-sheung; Chan, Helen L. W.
20-Feb-2001Ultrasonic transducerChan, Helen L. W.; Or, Derek Siu-wing; Cheng, Kei-chun; Choy, Chung-loong
24-Feb-2009Piezoelectric ceramic composition and the method for preparing the sameWang, Xiaoxing; Kwok, Kin-wing; Chan, Helen L. W.; Choy, Siu-hong
20-Nov-2007Magnetoelectric devices and methods of using sameOr, Derek Siu-wing; Chan, Helen L. W.
17-Apr-2007Ultrasound sensor and ultrasound measurement deviceTam, Hwa-yaw; Chan, Helen L. W.; Guan, Bai-ou
11-Sep-2001Ultrasonic transducerChan, Helen L. W.; Or, Derek Siu-wing; Choy, Chung-loong
Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 26
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