Patents by Inventor Chia-Ta Chang

Chia-Ta Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Illumination module and light bar used in the same
    Patent number: 8714798
    Abstract: An illumination module includes a light bar, an LED assembly, a positioning member, a sleeve and a lamp receptacle. The light bar has a first end and a second end opposite the first end. A microstructure layer or a reflective layer is formed on the light bar, and a positioning pillar is formed on an outer side of the light bar. The emitting light of the LED assembly is diffused by the microstructure layer or reflected by the reflective layer to spread over the entire light bar. The positioning member, the sleeve, the LED assembly or the lamp receptacle has at least one guide slot that engages with the positioning pillar of the light bar.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: May 6, 2014
    Assignees: Dongguan Masstop Liquid Crystal Display Co., Ltd., Wintek Corporation
    Inventors: Chia-Ta Chang, Ming-Hsi Chiang, Zhan-Wei Qiu, Hsiu-Ping Lee, Kuo-Jui Huang, Zhi-Ting Ye
  • Overvoltage Protection Device for Compound Semiconductor Field Effect Transistors
    Publication number: 20130240894
    Abstract: An overvoltage protection device for compound semiconductor field effect transistors includes an implanted region disposed in a compound semiconductor material. The implanted region has spatially distributed trap states which cause the implanted region to become electrically conductive at a threshold voltage. A first contact is connected to the implanted region. A second contact spaced apart from the first contact is also connected to the implanted region. The distance between the first and second contacts partly determines the threshold voltage of the overvoltage protection device.
    Type: Application
    Filed: March 13, 2012
    Publication date: September 19, 2013
    Inventors: Hans Joachim Würfl, Eldad Bahat-Treidel, Chia-Ta Chang, Oliver Hilt, Rimma Zhytnytska
  • ILLUMINATION MODULE AND LIGHT BAR USED IN THE SAME
    Publication number: 20110141766
    Abstract: An illumination module includes a light bar, an LED assembly, a positioning member, a sleeve and a lamp receptacle. The light bar has a first end and a second end opposite the first end. A microstructure layer or a reflective layer is formed on the light bar, and a positioning pillar is formed on an outer side of the light bar. The emitting light of the LED assembly is diffused by the microstructure layer or reflected by the reflective layer to spread over the entire light bar. The positioning member, the sleeve, the LED assembly or the lamp receptacle has at least one guide slot that engages with the positioning pillar of the light bar.
    Type: Application
    Filed: December 9, 2010
    Publication date: June 16, 2011
    Inventors: Chia-Ta Chang, Ming-Hsi Chiang, Zhan-Wei Qiu, Hsiu-Ping Lee, Kuo-Jui Huang, Zhi-Ting Ye
  • Method for forming required pattern on semiconductor substrate by thermal reflow technique
    Publication number: 20100159708
    Abstract: The invention is disclosed that pattern on semiconductor substrate is fabricated by thermal reflow technique. Also, the pattern on semiconductor substrate having different sub-micron spacings can be fabricated by using different time for the thermal reflow technique process.
    Type: Application
    Filed: April 10, 2009
    Publication date: June 24, 2010
    Applicant: National Chiao Tung University
    Inventors: Yi Edward Chang, Chia-Ta Chang, Shih-Kuang Hsiao
  • Bulb lamp
    Patent number: D689216
    Type: Grant
    Filed: September 3, 2012
    Date of Patent: September 3, 2013
    Assignees: Dongguan Masstop Liquid Crystal Display Co., Ltd., Wintek Corporation
    Inventors: Yu-Liang Chow, Ming-Chuan Lin, Chia-Ta Chang, Shih-Cheng Wang, Kuang-Neng Chen
  • Light emitting diode tube
    Patent number: D705458
    Type: Grant
    Filed: May 27, 2013
    Date of Patent: May 20, 2014
    Assignees: United Win (China) Technology Ltd, Wintek Corporation
    Inventors: Ming-Chuan Lin, Hsuan Wang, Bo Yu, Zhi-Ting Ye, Yu-Liang Chow, Chang-Wei Yu, Chia-Ta Chang, Chin-Wen Lo, Tso-Wei Liao, Wen-Hsiao Huang, Shih-Cheng Wang, Ju-Fen Yang