Chang; Tsung-Kai
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Tsung-Kai.The latest application filed is for "dynamic focusing confocal optical scanning system".
- Chang; Tsung-Kai - Hsinchu TW
- Chang; Tsung-Kai - Taipei TW
- Chang; Tsung-Kai - Hsinchu Hsien TW
| Patent | Date |
|---|---|
| Dynamic focusing confocal optical scanning system Grant 10,520,436 - Tiao , et al. Dec | 2019-12-31 |
| Dynamic Focusing Confocal Optical Scanning System App 20180149594 - Tiao; Golden ; et al. | 2018-05-31 |
| Voice coil motor array module Grant 9,473,010 - Chen , et al. October 18, 2 | 2016-10-18 |
| Voice Coil Motor Array Module App 20150316745 - CHEN; YING-CHIEH ; et al. | 2015-11-05 |
| Electromagnetic actuator of optical pickup head Grant 8,291,442 - Chang , et al. October 16, 2 | 2012-10-16 |
| Electromagnetic Actuator Of Optical Pickup Head App 20120170440 - Chang; Tsung-Kai ; et al. | 2012-07-05 |
| Electromagnetic Actuator Of Optical Pickup Head App 20120174138 - Chang; Tsung-Kai ; et al. | 2012-07-05 |
| Apparatus Of Auto-Focus Module And Assembly Method Thereof App 20120120509 - Liu; Chin-Sung ; et al. | 2012-05-17 |
| Apparatus of driving lens for focusing Grant 7,519,286 - Chung , et al. April 14, 2 | 2009-04-14 |
| Focus driving apparatus with impact resistance Grant 7,492,537 - Chang , et al. February 17, 2 | 2009-02-17 |
| Adjustable optical pickup actuator Grant 7,486,594 - Chang , et al. February 3, 2 | 2009-02-03 |
| Driving apparatus for fine-tuning focus Grant 7,457,062 - Chang , et al. November 25, 2 | 2008-11-25 |
| Focus Driving Apparatus With Impact Resistance App 20080278831 - Chang; Tsung-Kai ; et al. | 2008-11-13 |
| Flat Cable Device For Optical Pickup Heads App 20070245361 - Chen; Chien-Kuo ; et al. | 2007-10-18 |
| Adjustable optical pickup actuator App 20070171774 - Chang; Tsung-Kai ; et al. | 2007-07-26 |
| Apparatus Of Driving Lens For Focusing App 20070154201 - Chung; Yu-Fen ; et al. | 2007-07-05 |
| Objective lens for optical pick-up head of optical disk drive Grant 5,777,803 - Ju , et al. July 7, 1 | 1998-07-07 |
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