Patents by Inventor Tjong-Ren Chang

Tjong-Ren 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).

  • Publication number: 20120228652
    Abstract: An LED lamp (Light Emitting Diode) manufacturing method is disclosed. The method includes the steps as following. First, a fluorescent powder and a translucent plastic are mixed to be a mixed material, and the ratio of the fluorescent powder and the translucent plastic is below 80:100. Second, the mixed material is applied to form a lamp shell by the injection molding technology. Third, at least one LED is arranged at the center of the bottom of the lamp shell.
    Type: Application
    Filed: June 29, 2011
    Publication date: September 13, 2012
    Applicant: WELLYPOWER OPTRONICS CORPORATION
    Inventors: Tjong-Ren CHANG, Wei-Yuan TSOU, Chun-Chieh HUANG, Chin-Chia CHANG, Hui-Shan TSAI
  • Publication number: 20120190253
    Abstract: A lamp connection device, which connects with an external circuit and a lamp, comprises an elastic conduction member having at least one engagement section and two winding connection members respectively formed at two ends of the elastic conduction member. The conductive wire of the external circuit and the conductive filament of the lamp are electrically connected to the elastic conduction member via the winding connection members. The engagement section is electrically connected with the conductive wire and conductive filament. Thereby, the lamp can be electrically connected with the external circuit, and the lamp connection device can be bent to flexibly connect to different lamp holders or lamp shades. The serrate structure of the engagement section also can realize invasive electrical connection to prevent increased resistance caused by the oxide layer formed on the surface of the conductive wire.
    Type: Application
    Filed: June 10, 2011
    Publication date: July 26, 2012
    Inventors: Tjong-Ren CHANG, Wei-Yuan Tsou, Chun-Chieh Huang, Chin-Chia Chang
  • Publication number: 20110283741
    Abstract: A tube bending apparatus for bending a straight lamp tube includes a horizontal heating chamber, a vertical heating chamber and a tube bending mold. The horizontal heating chamber includes a bending tube heating zone and two pre-heating zones. The bending tube heating zone has a working temperature higher than that of the two pre-heating zones. The vertical heating chamber communicates with the horizontal heating chamber and includes a mold heating zone. The mold heating zone has a working temperature higher than or equal to that of the bending tube heating zone. The tube bending mold is heated in the mold heating zone in a working temperature to bend the straight lamp tube held and heated in the horizontal heating chamber.
    Type: Application
    Filed: May 19, 2010
    Publication date: November 24, 2011
    Inventors: Tjong-Ren Chang, Wei-Yuan Tsou, Chun-Chieh Huang, Chin-Chia Chang, Wen-Te Liu
  • Patent number: 7969083
    Abstract: A discharge lamp is disclosed, including a sealed vessel with an inner surface, at least one illuminating gas filled inside the sealed vessel, and a fluorescent layer coated on the inner surface. The composition of the fluorescent layer is adjusted according to a colored light emitted by the illuminating gas during a discharge process within the sealed vessel, such that the colored light is converted into a visible light after passing through the fluorescent layer.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: June 28, 2011
    Assignee: Wellypower Optronics Corporation
    Inventors: Tjong-Ren Chang, Jin-Yuh Lu, Wen-Chun Chiu, Wei-Yuan Tsou
  • Patent number: 7946900
    Abstract: A fabrication method for discharge lamps is disclosed, which comprises providing a glass tube of diameter between 2 and 20 mm, the glass tube having an inner wall coated with a fluorescent phosphor and having a through-passage with a first end and a second end, connecting a first dielectric electrode to the first end of the glass tube by applying an adhesive to a contacted portion of the glass tube and the first dielectric electrode, and sintering the contacted portion of the glass tube and the first dielectric electrode to securely connect the glass tube and the first dielectric electrode. Subsequently, processes of filling and sealing are conducted to complete the fabrication of the discharge lamps.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: May 24, 2011
    Assignee: Wellypower Optronics Corporation
    Inventors: Tjong-Ren Chang, Jin-Yuh Lu, Wei-Yuan Tsou, Chun-Chieh Huang, Chun-Hsu Lin, Chin-Chia Chang
  • Patent number: 7677945
    Abstract: This invention relates to method(s) of fabricating electrodes of an external electrode fluorescence lamp (EEFL) for use in thin film transistor-liquid crystal display (TFT-LCD) applications. Also disclosed is a structure with electrodes for external electrode fluorescence lamps used in TFT-LCD backlight units.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: March 16, 2010
    Assignees: E.I. du Pont de Nemours and Company, Wellpower Optronics Co Ltd
    Inventors: Joel Skutsky, Brian D. Veeder, Andy Zao, Thomas Lin, Hsiu-Wei Wu, Tjong-Ren Chang, Shuang-Chang Yang, Wen-Chun Chiu, Jin-Yuh Lu
  • Publication number: 20100052508
    Abstract: A discharge lamp is disclosed, including a sealed vessel with an inner surface, at least one illuminating gas filled inside the sealed vessel, and a fluorescent layer coated on the inner surface. The composition of the fluorescent layer is adjusted according to a colored light emitted by the illuminating gas during a discharge process within the sealed vessel, such that the colored light is converted into a visible light after passing through the fluorescent layer.
    Type: Application
    Filed: January 5, 2009
    Publication date: March 4, 2010
    Applicant: WELLYPOWER OPTRONICS CORPORATION
    Inventors: Tjong-Ren Chang, Jin-Yuh Lu, Wen-Chun Chiu, Wei-Yuan Tsou
  • Publication number: 20100029166
    Abstract: A fabrication method for discharge lamps is disclosed, which comprises providing a glass tube of diameter between 2 and 20 mm, the glass tube having an inner wall coated with a fluorescent phosphor and having a through-passage with a first end and a second end, connecting a first dielectric electrode to the first end of the glass tube by applying an adhesive to a contacted portion of the glass tube and the first dielectric electrode, and sintering the contacted portion of the glass tube and the first dielectric electrode to securely connect the glass tube and the first dielectric electrode. Subsequently, processes of filling and sealing are conducted to complete the fabrication of the discharge lamps.
    Type: Application
    Filed: May 19, 2009
    Publication date: February 4, 2010
    Applicant: WELLYPOWER OPTRONICS CORPORATION
    Inventors: Tjong-Ren Chang, Jin-Yuh Lu, Wei-Yuan Tsou, Chun-Chieh Huang, Chun-Hsu Lin, Chin-Chia Chang
  • Publication number: 20080030654
    Abstract: This invention relates to method(s) of fabricating electrodes of an external electrode fluorescence lamp (EEFL) for use in thin film transistor-liquid crystal display (TFT-LCD) applications. Also disclosed is a structure with electrodes for external electrode fluorescence lamps used in TFT-LCD backlight units.
    Type: Application
    Filed: May 24, 2007
    Publication date: February 7, 2008
    Applicant: E. I. DUPONT DE NEMOURS AND COMPANY
    Inventors: Joel Slutsky, Brian Veeder, Andy Kao, Thomas Lin, Hsiu-Wei Wu, Tjong-Ren Chang, Shuang-Chang Yang, Wen-Chun Chiu, Jin-Yuh Lu