Patents by Inventor Sang Hyun Choi

Sang Hyun Choi 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: 7649208
    Abstract: The present invention relates to an LED package including photo diode. The LED package includes a silicon substrate, and a photo diode is formed in an upper part thereof. Also, an insulation layer is formed on the silicon substrate excluding at least a light-receiving area of the photodiode. In the LED package, an LED terminal is formed on the insulation layer to be connected to the photo diode. First and second LED connecting pads are formed on the insulation layer, and arranged on both sides of the photo diode. In addition, an LED chip is mounted on the silicon substrate, and connected to the first and second LED connecting pads.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: January 19, 2010
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sung Jun Lee, Woong Lin Hwang, Seog Moon Choi, Ho Joon Park, Sang Hyun Choi, Chang Hyun Lim
  • Patent number: 7582496
    Abstract: There are provided an LED package using a Si substrate and a fabricating method of the LED package. In the LED package, a supporting structure includes a Si substrate and an insulating layer formed on top and bottom surfaces of the Si substrate, and the supporting structure defines at least one groove in a bottom surface by partially removing the Si substrate and the insulating layer. A plurality of upper electrodes is formed on a top surface of the supporting structure. At least one LED is mounted on the top surface of the supporting structure, and the LED includes both terminals electrically connected to the upper electrodes. A metal filler is filled in the groove defined in the bottom surface of the supporting structure.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: September 1, 2009
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sung Jun Lee, Woong Lin Hwang, Sang Hyun Choi, Chang Hyun Lim, Ho Joon Park, Seog Moon Choi
  • Publication number: 20090142242
    Abstract: Disclosed is a vanadium/titania-based catalyst including natural manganese ore for removing nitrogen oxides and dioxin in a wide operating temperature range and a method of using the same. Specifically, this invention pertains to a vanadium/titania (V/TiO2)-based catalyst including natural manganese ore for removing nitrogen oxides and dioxin in a wide operating temperature range, in which the WTiO2 catalyst for selective catalytic reduction of nitrogen oxides and removal of dioxin contained in flue gas includes 5-30 wt % of natural manganese ore, thus exhibiting excellent activity of removing nitrogen oxides even in the low temperature range and of removing dioxin at the same time, and to a method of using the same. The catalyst of this invention has good thermal stability and thus can simultaneously manifest nitrogen oxides removal performance and dioxin removal performance superior to conventional vanadium/titania catalysts in a wide temperature range (150˜450° C.
    Type: Application
    Filed: August 31, 2006
    Publication date: June 4, 2009
    Inventors: Sung Ho Hong, Jun Yub Lee, Seok Joo Hong, Sung Pill Cho, Sung Chang Hong, Do Gyong Lee, Sang Hyun Choi
  • Publication number: 20090137073
    Abstract: The present invention provides an LED package and the fabrication method thereof. The present invention provides an LED package including a submount silicon substrate and insulating film and electrode patterns formed on the submount silicon substrate. The LED package also includes a spacer having a through hole, formed on the electrode patterns. The LED package further includes an LED received in the through hole, flip-chip bonded to the electrode patterns, and an optical element attached to the upper surface of the spacer.
    Type: Application
    Filed: January 27, 2009
    Publication date: May 28, 2009
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD
    Inventors: Ho Joon PARK, Woong Lin Hwang, Seog Moon Choi, Sung Jun Lee, Sang Hyun Choi, Chang Hyun Lim
  • Publication number: 20090060810
    Abstract: Disclosed are a method for preparing a catalyst, which has excellent nitrogen oxide-removal performance and resistance over a wide temperature range, and the use of the catalyst. According to the disclosed method, the oxidation number and surface defects of the catalyst are changed by applying artificial high energy through mechanical ball milling during the preparation process of the catalyst, instead of applying the addition of a precious metal, the deformation of a support and the use of a co-catalyst in order to increase NOx removal activity, such that activation energy for inducing redox reactions can be decreased.
    Type: Application
    Filed: March 20, 2007
    Publication date: March 5, 2009
    Inventors: Sung Ho Hong, Jun Yub Lee, Seok Joo Hong, Sung Pill Cho, Chang Hoon Shin, Sung Chang Hong, Sang Hyun Choi, Suk Jae Kang, Pill Won Seo
  • Patent number: 7326964
    Abstract: An LED package having an MEMS switch operated by electrostatic force, capable of continuously protecting an LED from excessive current due to electrostatic discharge. The LED package includes a submount with first and second electrode patterns formed thereon; an LED mounted on the submount, having an n-electrode electrically connected to the first electrode pattern and a p-electrode electrically connected to the second electrode pattern; and an MEMS switch including a first conductive plate and a second conductive plate bent to have an area over and vertically apart from the first conductive plate, wherein the first and second conductive plates are electrically connected to the first and second electrode patterns, and the second conductive plate comes in contact with the first conductive plate by electrostatic force upon being applied with voltage higher than a predetermined level of voltage.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: February 5, 2008
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Chang Hyun Lim, Woong Lin Hwang, Seog Moon Choi, Ho Joon Park, Sung Jun Lee, Sang Hyun Choi
  • Patent number: 7262440
    Abstract: The present invention provides a light emitting diode (LED) package and the fabrication method thereof. The LED package includes a lower metal layer, and a first silicon layer, a first insulation layer, a second silicon layer, a second insulation layer, and a package electrode pattern formed in their order on the lower metal layer. The LED package also includes a spacer having a cavity, formed on the electrode pattern. The LED package further includes an LED mounted in the cavity by flip-chip bonding to the electrode patterns, and an optical element attached to the upper surface of the spacer.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: August 28, 2007
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sang Hyun Choi, Woong Lin Hwang, Seog Moon Choi, Ho Joon Park, Sung Jun Lee, Chang Hyun Lim
  • Publication number: 20070157314
    Abstract: Provided is a method for tracing-back an IP using marking information of a router stored on a hop-by-hop option header, which is one of IPv6 extension headers. According to the method, an attack made by an attacker is detected on the IPv6 network. If the attack is detected, information stored on a hop-by-hop option header of a packet received through the IPv6 network and marked by a router through which the packet has passed is extracted. After that, a reception path of the received packet is reconstructed and an IP of the attacker is back-traced using the extracted marking information.
    Type: Application
    Filed: June 21, 2006
    Publication date: July 5, 2007
    Applicants: INDUSTRY ACADEMIC COOPERATION FOUNDATION OF KYUNGH, NATIONAL COMPUTERIZATION AGENCY
    Inventors: Choong-Seon HONG, Myung-Soo KANG, Sang-Hyun CHOI
  • Patent number: D573562
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: July 22, 2008
    Assignee: LG Electronics Inc.
    Inventors: Yong Ho Lee, Sang Hyun Choi
  • Patent number: D574342
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: August 5, 2008
    Assignee: LG Electronics Inc.
    Inventors: Yong Ho Lee, Sang Hyun Choi
  • Patent number: D590786
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: April 21, 2009
    Assignee: LG Electronics Inc.
    Inventors: Tae Uk Kim, Sang Hyun Choi