Patents by Inventor Chang Wook Kim

Chang Wook Kim 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: 7462871
    Abstract: In a side view LED, elongated first and second lead frames each have a finger extending therefrom. The finger of the first lead frame is disposed in parallel with that of the second lead frame. An LED chip and a protective device are mounted on mounting areas of the first and second lead frames, respectively and electrically connected to the first and second lead frames. A package body houses the first and second lead frames to form first and second opened areas. The first opened area is externally opened around the LED chip, the second opened area is externally opened around the protective device, and the partition wall is formed therebetween. First and second encapsulants are provided to the first and second opened areas, respectively to encapsulate the LED chip and protective device, respectively. At least the first encapsulant is transparent.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: December 9, 2008
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Kyung Taeg Han, Myoung Soo Choi, Seon Goo Lee, Jong Uk Park, Chang Wook Kim
  • Publication number: 20080111207
    Abstract: A high-voltage semiconductor device includes a semiconductor layer having a plurality of pillars of a first conductivity type defined by a plurality of trenches which extend from a top surface of the semiconductor layer toward a bottom surface thereof. A charge compensation layer of a second conductivity type is disposed over at least sidewalls of each trench to a predetermined thickness to form a groove in each trench. A charge compensation plug of the first conductivity type substantially fills each groove.
    Type: Application
    Filed: November 13, 2007
    Publication date: May 15, 2008
    Inventors: Jae-gil Lee, Chang-wook Kim, Ho-cheol Jang, Chong-man Yun
  • Publication number: 20080111466
    Abstract: An electron emission material having high electron emission efficiency and long lifespan, and an electron emission device and an electron emission display device having the electron emission material. The electron emission material has a surface to which hydrogen atoms are attached. The electron emission display device includes: a front panel having a phosphor layer; an electron emission device adhered to the front panel with a space therebetween; and a hydrogen emitter in the space defined by the front panel and the electron emission device.
    Type: Application
    Filed: October 22, 2007
    Publication date: May 15, 2008
    Inventors: Young-Mi Cho, Chang-Wook Kim, Ji-Soon Ihm
  • Patent number: 7251905
    Abstract: Disclosed is a drawer structure for storing condensed water generated during the drying procedure. The drawer prevents the condensed water form being leaked out of the dryer though the condensed water is fully filled in the drawer and overflowed from the drawer. Thus, a user may not throw away the condensed water whenever the laundry is dried.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: August 7, 2007
    Assignee: LG Electronics Inc.
    Inventors: Young Jin Doh, Chang Wook Kim
  • Patent number: 7242035
    Abstract: The invention relates to a side view LED package in use with an LCD backlight unit. The side view LED package comprises: an LED chip; and a strip-shaped lead frame having a toothed structure formed in a lateral edge thereof. The LED chip is mounted on a surface of the lead frame. An integral package body is made of resin, and includes a hollow front half having a cavity for housing the LED chip and a solid rear half divided from the front half by the lead frame. The toothed structure of the lead frame structure can improve resin flow in order to ensure stability even if the LED package is made extremely thin.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: July 10, 2007
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Chang Wook Kim, Young Jae Song
  • Publication number: 20070145387
    Abstract: The invention relates to an LED housing and its fabrication method. In the LED housing, a heat conducting part has a chip mounting area, a heat connecting area opposed to the chip mounting area and a groove formed adjacent to the heat connecting area. An electrical connecting part has a wiring area placed adjacent to the chip mounting area and an external power connecting area led to the wiring area. A housing body is made of molding resin, and integrally holds the heat conducting part and the electrical connecting part while isolating the electrical connecting part from the heat conducting part. The housing body is provided with a recess extended from a portion of the groove of the heat conducting part to a side of the housing body. In this fashion, the invention can overcome restricted application problems by isolating the electrical connecting parts from the heat conducting part.
    Type: Application
    Filed: March 1, 2007
    Publication date: June 28, 2007
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Seon Goo LEE, Bum Joon JIN, Kyung Taeg HAN, Chang Wook KIM
  • Patent number: 7217004
    Abstract: A Light Emitting Diode (LED) array module, which can be used as backlight, includes a bar-shaped Printed Circuit Board (PCB) on which conductive patterns for transmitting power are formed, a base formed on the PCB and made of a heat conductive material, a plurality of LED chips mounted on the base in a line and electrically connected to the conductive patterns of the PCB, a reflector formed to surround the plurality of the LED chips and adapted to reflect light radiated from the plurality of LED chips upward, and a lens formed above the plurality of LED chips and reflector to have a bar shape and adapted to diffuse the light radiated from the plurality of LED chips and reflector in a horizontal direction.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: May 15, 2007
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jung Kyu Park, Chang Wook Kim, Young Sam Park
  • Patent number: 7208772
    Abstract: The invention relates to a high power LED package, in which a package body is integrally formed with resin to have a recess for receiving an LED chip. A first sheet metal member is electrically connected with the LED chip, supports the LED chip at its upper partial portion in the recess, is surrounded by the package body extending to the side face of the package body, and has a heat transfer section for transferring heat generated from the LED chip to the metal plate of the board and extending downward from the inside of the package body so that a lower end thereof is exposed at a bottom face of the package body thus to contact the board. A second sheet metal member is electrically connected with the LED chip spaced apart from the first sheet metal member for a predetermined gap, and extends through the inside of the package body to the side face of the package body in a direction opposite to the first sheet metal member. A transparent sealant is sealingly filled up into the recess.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: April 24, 2007
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seon Goo Lee, Chang Wook Kim, Kyung Taeg Han
  • Publication number: 20070024177
    Abstract: An electron emission source including a carbon-based material coated with metal carbide in the surface coating layer, of which the metal has a negative Gibbs free energy when forming the metal carbide at 1,500 K or lower, a method of preparing electron emission sources, and an electron emission device including the electron emission source. The electron emission source includes a carbon nanotube coated with metal carbide or a carbon nanotube having a metal carbide layer and a metal coating layer, which are sequentially formed thereon. Thus, the electron emission source has long lifespan without deterioration of electron emitting characteristics. The electron emission source can be used to manufacture electron emission devices with improved reliability.
    Type: Application
    Filed: July 25, 2006
    Publication date: February 1, 2007
    Inventors: Young-Chul Choi, Jae-Myung Kim, Chang-Wook Kim, Eun-Mi Lee, Joong-Woo Nam, Sung-Hee Cho, Jong-Hwan Park, Ji-Soon Ihm
  • Publication number: 20060192227
    Abstract: A composition for preparing an electron emitter, an electron emitter produced by using the composition, and an electron emission device comprising the electron emitter are provided. The composition for preparing an electron emitter includes carbon-based materials and vehicles, wherein the vehicles comprise a polymer having a vinyl pivalate monomer. The composition for preparing an electron emitter improves a printing and a current-voltage characteristic simultaneously.
    Type: Application
    Filed: February 24, 2006
    Publication date: August 31, 2006
    Inventors: Chang-Wook Kim, Hyun-Jee Lee, Soo-Jin Park, Dong-Hyun Jung, Dae Shin, Seung-Hoon Choi
  • Publication number: 20060082278
    Abstract: Provided are a composition for preparing an electron emission source, including a nano-sized inorganic material and a vehicle, a method for preparing an electron emission source using the composition, an electron emission source including a nano-sized inorganic material and a small amount of a residual carbon, and further, an electron emission device including the electron emission source.
    Type: Application
    Filed: October 18, 2005
    Publication date: April 20, 2006
    Inventors: Hyun-Jee Lee, Chang-Wook Kim
  • Publication number: 20050243576
    Abstract: The present invention provides a Light Emitting Diode (LED) array module for providing backlight, which can be used as an independent device with a plurality of LEDs being integrally packaged, and which can be universally used regardless of a screen size, and a backlight unit having the same. The LED array module used as a light source of backlight includes a bar-shaped Printed Circuit Board (PCB) on which conductive patterns for transmitting power are formed, a base formed on the PCB and made of a heat conductive material, a plurality of LED chips mounted on the base in a line and electrically connected to the conductive patterns of the PCB, a reflector formed to surround the plurality of the LED chips and adapted to reflect light radiated from the plurality of LED chips upward, and a lens formed above the plurality of LED chips and reflector to have a bar shape and adapted to diffuse the light radiated from the plurality of LED chips and reflector in a horizontal direction.
    Type: Application
    Filed: July 14, 2004
    Publication date: November 3, 2005
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jung Kyu Park, Chang Wook Kim, Young Sam Park
  • Publication number: 20050242344
    Abstract: A method of forming an electron emission source, which includes: providing a carbon nanotube layer on a substrate; affixing the carbon nanotube layer to an organosiloxane-based material; curing the organosiloxane-based material affixed to the carbon nanotube layer; separating a carbon nanotube-polyorganosiloxane polymer composite film from the substrate; laminating the carbon nanotube-polyorganosiloxane polymer composite film on an electron emission source formation substrate; and thermally treating the carbon nanotube-polyorganosiloxane polymer composite film laminated on the electron emission source formation substrate.
    Type: Application
    Filed: April 29, 2005
    Publication date: November 3, 2005
    Inventors: Hyun-Jee Lee, Chang-Wook Kim
  • Patent number: D512029
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: November 29, 2005
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Chang Wook Kim, Seon Goo Lee, Kyung Taeg Han
  • Patent number: D512693
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: December 13, 2005
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Chang Wook Kim, Chan Wang Park, Won Young Choi
  • Patent number: D512694
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: December 13, 2005
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Chang Wook Kim, Seon Goo Lee, Kyung Taeg Han
  • Patent number: D552046
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: October 2, 2007
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Chang Wook Kim, Hong Min Kim
  • Patent number: D495304
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: August 31, 2004
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Chang Wook Kim, Jung Kyu Park
  • Patent number: D495667
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: September 7, 2004
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Chang Wook Kim, Seoung Ju Moon
  • Patent number: D495668
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: September 7, 2004
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Chang Wook Kim, Doo Hoon Ahn