Patents by Inventor Woong Joon Hwang

Woong Joon Hwang 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).

  • Patent number: 8569939
    Abstract: The present invention relates to a luminous device with a heat pipe formed therein and a heat pipe lead for a luminous device. The present invention provides a luminous device including a heat pipe lead or electrode and a luminous chip mounted onto the heat pipe lead or electrode. The luminous device of the present invention further comprises a heat dissipation member, such as a heat radiating plate or thermoelectric device, installed at an end of the heat pipe lead or electrode. Therefore, through the heat pipe lead or electrode of the present invention, a higher heat dissipation effect greater can be obtained as compared with the conventional one. As a result, it is possible to reduce thermal stress on a luminous device and to prevent the occurrence of a phenomenon in which external impurities penetrate into the luminous device. In addition, the cooling efficiency and the light-emitting efficiency of a luminous chip can be maximized by further disposing a heat dissipation member outside the heat pipe.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: October 29, 2013
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Do-Hyung Kim, Moon-Whan Shin, Woong-Joon Hwang, Chung-Hoon Lee
  • Patent number: 8360593
    Abstract: Disclosed is a light emitting diode (LED) package. The LED package comprises a package body having a cavity and a stepped portion positioned on a top portion of the cavity; an LED chip mounted on a bottom surface of the cavity; an encapsulant formed in the cavity to cover the LED chip; and a lens having a pattern and attached to the stepped portion on the encapsulant.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: January 29, 2013
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Tae Kwang Kim, Chung Hoon Lee, Do Hyung Kim, Seung Ryeol Ryu, Chan Sung Jeong, Woong Joon Hwang
  • Publication number: 20100202131
    Abstract: Disclosed is a light emitting diode (LED) package. The LED package comprises a package body having a cavity and a stepped portion positioned on a top portion of the cavity; an LED chip mounted on a bottom surface of the cavity; an encapsulant formed in the cavity to cover the LED chip; and a lens having a pattern and attached to the stepped portion on the encapsulant.
    Type: Application
    Filed: September 19, 2008
    Publication date: August 12, 2010
    Applicant: Seoul Semiconductor Co., Ltd.
    Inventors: Tae Kwang Kim, Chung Hoon Lee, Do Hyung Kim, Seung Ryeol Ryu, Chan Sung Jeong, Woong Joon Hwang
  • Publication number: 20080093962
    Abstract: The present invention relates to a luminous device with a heat pipe formed therein and a heat pipe lead for a luminous device. The present invention provides a luminous device including a heat pipe lead or electrode and a luminous chip mounted onto the heat pipe lead or electrode. The luminous device of the present invention further comprises a heat dissipation member, such as a heat radiating plate or thermoelectric device, installed at an end of the heat pipe lead or electrode. Therefore, through the heat pipe lead or electrode of the present invention, a higher heat dissipation effect greater can be obtained as compared with the conventional one. As a result, it is possible to reduce thermal stress on a luminous device and to prevent the occurrence of a phenomenon in which external impurities penetrate into the luminous device. In addition, the cooling efficiency and the light-emitting efficiency of a luminous chip can be maximized by further disposing a heat dissipation member outside the heat pipe.
    Type: Application
    Filed: August 26, 2005
    Publication date: April 24, 2008
    Applicant: SEOUL SEMICONDUCTOR CO., LTD.
    Inventors: Do-Hyung Kim, Moo-Whan Shin, Woong-Joon Hwang, Chung-Hoon Lee