Patents by Inventor Wen-Kuei Tsai

Wen-Kuei Tsai 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: 20140286020
    Abstract: A lighting device includes a top housing, a connecting member and a lamp. The connecting member is detachably coupled to the top housing, and has at least one latch pivoted on and fixed to a top surface of the connecting member to be operatively engaged to the top housing. The lamp cover is directly or indirectly coupled to the connecting member.
    Type: Application
    Filed: March 25, 2013
    Publication date: September 25, 2014
    Applicant: Top Energy Saving System Corp.
    Inventor: WEN-KUEI TSAI
  • Publication number: 20140177224
    Abstract: A solid-state lighting having an air passage includes a light base, a main body, a collar, a first solid-state lighting module, at least one air passage, and a driving module. The main body has a first end and a second end. The collar is arranged between the light base and the first end of the main body and defines an air flow region air communicable to the atmosphere. The first solid-state lighting module is disposed on a portion of the main body other than the first end. The air passage defines a first opening and second opening thereon for air communication between the solid-state lighting and the atmosphere. The first opening is aligned with the first end. The second opening is arranged correspondingly to be in air communication with the first end. The driving module is arranged in the air passage between the first and the second openings.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 26, 2014
    Applicant: CHANG WAH ELECTROMATERIALS INC.
    Inventor: WEN-KUEI TSAI
  • Publication number: 20140084787
    Abstract: The present invention discloses a power converter contained base, lamp with power converter contained base and lamp with separable power converter contained base. The power converter contained base comprises a first commercial standard base, fundament, cover, power converter and a first connector. The fundament comprises a first opening connected to the commercial standard base and a second opening where the cover disposed. A containing space may be defined by the cover, base and the first commercial standard base. The power converter may be disposed inside the containing space. The first connector may be disposed on the cover or the fundament to be connected with a second connector of a light-emitting member to make the four elements, the first commercial standard base, the power converter, the one of or the combination of two or three of, the fundament, the cover and the connector, and the light-emitting member become electrically connected.
    Type: Application
    Filed: September 26, 2013
    Publication date: March 27, 2014
    Applicant: Chang Wah Electromaterials Inc.
    Inventor: WEN-KUEI TSAI
  • Patent number: 8651728
    Abstract: The present invention is directed to a lighting master, which includes a base and a lighting module. A region defined between the base and a housing accommodates a power module. The lighting module is disposed over the base. The base has an outer surface to be bonded with an inner surface of the housing.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: February 18, 2014
    Assignee: Chang Wah Electromaterials, Inc.
    Inventor: Wen-Kuei Tsai
  • Patent number: 8608352
    Abstract: An illuminating device is disclosed in this invention. The illuminating device includes a shell, a light module, and a fan. The light module is disposed on the shell. The shell includes a sealed space. The fan is disposed within the sealed space.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: December 17, 2013
    Assignee: GE Investment Co., Ltd.
    Inventor: Wen-Kuei Tsai
  • Patent number: 8585241
    Abstract: A power-saving lighting apparatus including an upper housing, a bottom cover assembled with the upper housing, a lighting module and a positioning member is provided. The lighting module is disposed between the upper housing and the bottom cover, and the lighting module is mechanically supported by the bottom cover. The positioning member is disposed on the lighting module, wherein a relative position of the lighting module and the bottom cover is maintained by the positioning member.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: November 19, 2013
    Assignee: Chang Wah Electromaterials Inc.
    Inventor: Wen-Kuei Tsai
  • Patent number: 8519629
    Abstract: The present invention is directed to a lighting device. A lighting unit includes at least one lighting string, and each lighting string includes one or serial-connected lighting elements. An AC/DC power converter converts an AC voltage to a DC voltage, therefore providing a current to the lighting unit. In one embodiment, a detecting unit performs detection to generate a detect signal; in another embodiment, a brightness adjusting unit, after adjustment, generates adjust signals that represent different brightness modes respectively. Subsequently, a resistor network generates a control signal according to the detect signal or the adjust signal, and a switch unit controls the brightness of the lighting unit according to the control signal.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: August 27, 2013
    Assignee: Top Energy Saving System Corp.
    Inventor: Wen-Kuei Tsai
  • Patent number: 8421367
    Abstract: A light-emitting diode (LED) light source suitable for being electrically connected with a power line is provided. The LED light source includes an LED array, a power line communication (PLC) unit and a current control unit. The PLC unit is electrically connected with the power line, and the current control unit is electrically connected with the LED array and the PLC unit.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: April 16, 2013
    Assignee: GE Investment Co., Ltd.
    Inventors: Wen-Kuei Tsai, Sheng-ho Chang, Chun-Chien Wang
  • Patent number: 8419237
    Abstract: A heat sink including an inner piece and an outer piece is provided. The inner piece has a side surface. The outer piece is disposed around the inner piece and has an inner side surface, wherein the side surface of the inner piece is riveted to the inner side surface of the outer piece to form an interface, and an area ratio of the interface and the side surface of the inner piece is between 0.6 and 0.95. The light emitting diode lamp using the heat sink is also provided.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: April 16, 2013
    Assignee: Top Energy Saving System Corp.
    Inventor: Wen-Kuei Tsai
  • Patent number: 8405288
    Abstract: The present invention is directed to a light-emitting diode (LED) illumination apparatus. The apparatus includes a housing, an LED substrate, at least two electrical-insulation clamping members and associated screws, and a heat-conduction pad. At least one LED chip is fixed on the surface of the LED substrate. Each electrical-insulation clamping member has a threaded hole for screwing the screw in order to fasten the electrical-insulation clamping member to the housing; and each electrical-insulation clamping member has a recess for clamping the LED substrate. The heat-conduction pad is disposed between the housing and the LED substrate, and is used to conduct heat generated by the LED chip.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: March 26, 2013
    Assignee: Top Energy Saving System Corp.
    Inventor: Wen-Kuei Tsai
  • Patent number: 8384290
    Abstract: The present invention is directed to an illumination system adaptable to a cooling appliance. The illumination system includes a lighting module, a mode switch and a controller. Specifically, the lighting module includes at least one lighting device; the mode switch is used to determine a power mode for the lighting module; and the controller provides corresponding power to the lighting device according to the power mode. In one embodiment, the illumination system further includes a heating module having a heater for providing heat to the controller. In another embodiment, the lighting device is disposed near the controller.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: February 26, 2013
    Assignee: Top Energy Saving System Corp.
    Inventor: Wen-Kuei Tsai
  • Patent number: 8384312
    Abstract: A power distribution system for applying electric power to a plurality of lighting units is provided. The power distribution system includes at least one user interface having a first pairing setting unit, a plurality of second pairing setting units, and a power line. The user interface is electrically connected with a power source. Each of the second pairing setting units is electrically connected with one of the lighting units, respectively. The power line connected with the lighting units is electrically connected between the first pairing setting unit and the second pairing setting units. Each of the second pairing setting units is capable of receiving an electrical signal output by the first pairing setting unit and determining whether the lighting unit controlled thereby is turned on or not. Therefore, each of the second pairing setting units connected with the same power line can be controlled individually.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: February 26, 2013
    Assignee: GE Investment Co., Ltd.
    Inventor: Wen-Kuei Tsai
  • Publication number: 20130043800
    Abstract: The present invention is directed to a power converter, which receives a rectified voltage converted by a rectifier that is coupled to receive an output of a dimmer. The power converter generates a direct-current output voltage according to the rectified voltage in a non-isolated switching boost mode, and the generated direct-current output voltage is provided to at least one solid-state lighting element.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 21, 2013
    Applicant: GE INVESTMENT CO., LTD.
    Inventor: WEN-KUEI TSAI
  • Patent number: 8362711
    Abstract: An alternating-current (AC) light-emitting diode (LED) apparatus is disclosed. A rectifier rectifies a power AC voltage to generate a rectified voltage, which is monitored by a controller. A number of LEDs are electrically coupled between the rectified voltage and a ground. A number of switches correspondingly control at least a portion of the LEDs respectively, wherein one terminal of each switch is electrically coupled to one electrode of the corresponding LED or LEDs. The switches are controlled by the controller according to the rectified voltage.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: January 29, 2013
    Assignee: GE Investment Co., Ltd.
    Inventor: Wen-Kuei Tsai
  • Patent number: D688392
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: August 20, 2013
    Assignee: Top Energy Saving System Corp.
    Inventor: Wen-Kuei Tsai
  • Patent number: D688393
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: August 20, 2013
    Assignee: Top Energy Saving System Corp.
    Inventor: Wen-Kuei Tsai
  • Patent number: D688394
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: August 20, 2013
    Assignee: Top Energy Saving Systems Corp.
    Inventor: Wen-Kuei Tsai
  • Patent number: D688396
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: August 20, 2013
    Assignee: Top Energy Saving System Corp.
    Inventor: Wen-Kuei Tsai
  • Patent number: D688397
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: August 20, 2013
    Assignee: Top Energy Saving System Corp.
    Inventor: Wen-Kuei Tsai
  • Patent number: D689217
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: September 3, 2013
    Assignee: Top Energy Saving System Corp.
    Inventor: Wen-Kuei Tsai