Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8999506 | Method of one-pot synthesis of water-soluble nanoparticles exhibiting up-conversion luminescence | Jianhua HAO, Zhen Wang, Songjun Zeng | 2015-04-07 |
| 7819013 | Method and apparatus for measuring oscillation amplitude of an ultrasonic device | Tin Yan Lam, Chen-Hsiang Chao, Kin Wing Kwok | 2010-10-26 |
| 7494601 | Piezoelectric ceramic composition and the method for preparing the same | Xiaoxing Wang, Kin Wing Kwok, Siu Hong Choy | 2009-02-24 |
| 6871770 | Ultrasonic transducer | Hing Leung Li, Kelvin NG, Peter Liu | 2005-03-29 |
| 6286747 | Ultrasonic transducer | Siu Wing Or, Chung Loong Choy | 2001-09-11 |
| 6190497 | Ultrasonic transducer | Siu Wing Or, Kei Cheng, Chung Loong Choy | 2001-02-20 |
| 5460048 | Ultrasonic sensor using a polarization maintaining fibre | Kin Seng Chiang | 1995-10-24 |
| 5297436 | Optical fibre ultrasonic sensor | Kin Seng Chiang | 1994-03-29 |
| 4963782 | Multifrequency composite ultrasonic transducer system | Tuan Bui, Joe Unsworth | 1990-10-16 |