Patents by Inventor Chang-Hoon Lee

Chang-Hoon Lee 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: 7951216
    Abstract: The present exemplary embodiments relate to a dust separating apparatus for a vacuum cleaner. The dust separating apparatus for a vacuum cleaner according to present exemplary embodiments includes a cyclone in which a plurality of cyclone airflows is formed; a dust outlet for discharging dust separated by the plurality of cyclone airflows; and a dust container for storing dust discharged from the dust outlet, wherein the cyclone includes a body in which air flows along an inner surface thereof, and a pair of sides, each of the sides forming one of both side surfaces of the body and defining an outlet for discharging air.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: May 31, 2011
    Assignee: LG Electronics Inc.
    Inventors: Gun-Ho Ha, Kyeong-Seon Jeong, Jin-Wook Seo, Kie-Tak Hyun, Chang-Ho Yun, Jin-Young Kim, Chang-Hoon Lee, Jin-Hyouk Shin, Seong-Koo Cho, Heon-Pyeong Ji, Geun-Bae Hwang
  • Publication number: 20110113621
    Abstract: A method of manufacturing a transformer coil including a conductive winding enclosed in a resin using a mold including two tubular inner mold parts and one outer mold part with a length at least as long as the inner mold parts, the method includes the steps of winding a first conductor around a first inner mold part, winding a second conductor around a second inner mold part, joining one end of the first inner mold part to one end of the second inner mold part forming a sealed joint, connecting electrically the first and second conductors forming one winding, arranging the joined inner mold parts with the winding in the outer mold part, enclosing the winding between the inner and outer mold parts, filling resin into the space enclosed between the mold parts, letting the resin cure, and removing the mold parts.
    Type: Application
    Filed: November 18, 2010
    Publication date: May 19, 2011
    Inventors: Jong-Yun Lim, Chang -Hoon Lee
  • Patent number: 7939917
    Abstract: Example embodiments provide tape structures including a base layer, a neutralizing layer and an adhesive layer. The base layer may support an object. The neutralizing layer may be arranged on the base layer. The neutralizing layer may be grounded to neutralize charges between the base layer and the object. The adhesive layer may be arranged on the neutralizing layer. The object may be attached to the adhesive layer. Example embodiments also provide methods of manufacturing the tape structures, methods of separating a wafer, and apparatuses for separating a wafer.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: May 10, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hoon Lee, Jong-Keun Jeon, Yong-Jin Lee, Soon-Ju Choi
  • Patent number: 7911577
    Abstract: An in-plane mode liquid crystal display device (LCD) is provided that is capable of improving a contrast ratio by blocking a light leakage region formed by a column spacer. The LCD includes gate and data lines that are formed on a substrate and cross each other to define pixels. A switching device, parallel first and second electrodes that generate a horizontal electric field, and a column spacer are disposed at each pixel. The column spacers are disposed between opposing substrates and are aligned with black matrix or the data lines such that the columns formed by the column spacers overlap with bent portions of the data lines.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: March 22, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Min-Jic Lee, Chang-Hoon Lee, Hee-Dong Choi
  • Patent number: 7882592
    Abstract: A vacuum cleaner includes both a main dust separation unit and a secondary dust separation unit. One of the dust separation units is provided on a main body of the vacuum cleaner, and the other dust separation unit is provided on a removable dust collection unit that is mountable on the main body.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: February 8, 2011
    Assignee: LG Electronics Inc.
    Inventors: Man Tae Hwang, Hae Seock Yang, Hoi Kil Jeong, Myung Sig Yoo, Jae Kyum Kim, Moo Hyun Ko, Kie Tak Hyun, Jong Su Choo, Young Bok Son, Kyeong Seon Jeong, Min Park, Sung Hwa Lee, Il Joong Kim, Jin Hyouk Shin, Gun Ho Ha, Jin Wook Seo, Chang Ho Yun, Jin Young Kim, Chang Hoon Lee, Yun Hee Park
  • Patent number: 7876493
    Abstract: Disclosed is an electrophoretic display (EPD) device capable of delaying or preventing a sealant from leaking down by forming a dam pattern prior to a sealing process using the sealant, and a method for fabricating the same. The EPD device comprises: gate lines and data lines crossing each other to define a pixel region, and formed on a lower substrate; a thin film transistor (TFT) electrically connected to the gate lines and the data lines; a passivation film covering the TFT; a pixel electrode electrically connected to the TFT; a display layer formed on the pixel electrode and the passivation film, and having an electrophoretic substance; a common electrode formed on an entire surface of the display layer; an upper substrate formed on the common electrode; a seal pattern formed on each outer circumferential surface of the lower substrate, the upper substrate, and the display layer; and a dam pattern formed on the lower substrate adjacent to the seal pattern.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: January 25, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Jae-Soo Park, Chang Hoon Lee
  • Publication number: 20100263161
    Abstract: A dust separating device for a vacuum cleaner is provided. The dust separating device includes a dust separating unit including a first main body movably connected to a second main body. The second main body includes a plurality of sub bodies coupled together. A vacuum cleaner is also provided. The vacuum cleaner includes a main vacuum cleaner body and a dust separating device including a dust separating unit and a filter unit. The dust separating device is detachably mounted to the main body and includes a plurality of main bodies.
    Type: Application
    Filed: April 15, 2010
    Publication date: October 21, 2010
    Applicant: LG Electronics Inc.
    Inventors: Chang Hoon LEE, Young Ho Kim, Man Tae Hwang, Hae Seock Yang, Hoi Kil Jeong
  • Patent number: 7785396
    Abstract: A vacuum cleaner includes a dust collector that compresses dust stored inside a dust container to minimize the volume of the dust. The dust collector would include one or more pressing plates that are used to compress the dust stored in dust collector. Various methods are used to control movements of the movable pressing plates to facilitate the compression operations. Also, various methods are used to determine when the dust collector is full and needs to be emptied.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: August 31, 2010
    Assignee: LG Electronics Inc.
    Inventors: Man Tae Hwang, Hae Seock Yang, Hoi Kil Jeong, Myung Sig Yoo, Jae Kyum Kim, Moo Hyun Ko, Kie Tak Hyun, Jong Su Choo, Young Bok Son, Kyeong Seon Jeong, Min Park, Sung Hwa Lee, Il Joong Kim, Jin Hyouk Shin, Gun Ho Ha, Jin Wook Seo, Chang Ho Yun, Jin Young Kim, Chang Hoon Lee, Yun Hee Park
  • Patent number: 7782279
    Abstract: An organic light emitting diode display device is disclosed. The device includes a brightness controller configured to selectively control a brightness controlling range based at least in part on the magnitude of the video data input in one frame, and a gamma correcting unit configured to control the portion of maximum luminance corresponding to full scale data based on one of first gamma correcting values and second gamma correcting values.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: August 24, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jae Sung Lee, Chang Hoon Lee
  • Patent number: 7776121
    Abstract: Provided is a dust collector of a vacuum cleaner. The dust collector includes a dust separating unit forming a separation space for separating dust from air, a collector body forming a dust storage for storing the dust separated in the dust separating unit, and a dust guide passage connecting the separation space to the dust storage and guiding the separated dust to be discharged from the separation space in a tangential direction.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: August 17, 2010
    Assignee: LG Electronics Inc.
    Inventors: Chang Ho Yun, Gun Ho Ha, Jin Young Kim, Chang Hoon Lee, Jin Wook Seo
  • Publication number: 20100201694
    Abstract: An electronic image device and driving method thereof allows a user to control a 3D image and eliminates a process for dividing an input image that is 3D image data into a left-eye image and a right-eye image. 3D image data signals may be generated directly from a 3D image signal or from a time divided 2D image signal.
    Type: Application
    Filed: February 5, 2010
    Publication date: August 12, 2010
    Inventors: Jae-Sung Lee, Chang-Hoon Lee
  • Patent number: 7774505
    Abstract: Disclosed is a method for transmitting image data in real-time between mobile communication terminals in a mobile communication system, the mobile communication system including a host mobile communication terminal, at least one client mobile communication terminal, an SMS server, and a PDSN assigning IP addresses. The method includes when an IP address is received from the PDSN, transmitting by the host mobile communication terminal an invite message to the client mobile communication terminal via the SMS server; receiving by the client mobile communication terminal an IP address from the PDSN, and transmitting a register message to the host mobile communication terminal via the PDSN; updating by the host mobile communication terminal a buddy list, and transmitting the updated buddy list to the client mobile communication terminal via the PDSN; and exchanging by the host and the client mobile communication terminals the image data in real-time based on the updated buddy list.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: August 10, 2010
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Tae-Young Kang, Woo-Hyuk Choi, Noh-Kyung Hong, Chang-Hoon Lee, Byeong-Cheol Hwang, Jae-Hyun Park, Bong-Hee Kim
  • Patent number: 7770253
    Abstract: A vacuum cleaner includes a dust collector that compresses dust stored inside a dust container to minimize the volume of the dust. The dust collector would include one or more pressing plates that are used to compress the dust stored in dust collector. Various methods are used to control movements of the movable pressing plates to facilitate the compression operations. Also, various methods are used to determine when the dust collector is full and needs to be emptied.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: August 10, 2010
    Assignee: LG Electronics Inc.
    Inventors: Gun Ho Ha, Jin Wook Seo, Chang Ho Yun, Jin Young Kim, Chang Hoon Lee, Yun Hee Park, Man Tae Hwang, Hae Seock Yang, Hoi Kil Jeong, Myung Sig Yoo, Jae Kyum Kim, Moo Hyun Ko, Kie Tak Hyun, Jong Su Choo, Young Bok Son, Kyeong Seon Jeong, Min Park, Sung Hwa Lee, Il Joong Kim, Jin Hyouk Shin
  • Publication number: 20100178873
    Abstract: A mobile terminal and controlling method may be provided by which a specific one of various external devices neighboring a mobile terminal may be easily searched and may be connected to the mobile terminal by short-range communication.
    Type: Application
    Filed: July 31, 2009
    Publication date: July 15, 2010
    Inventors: Dong Hyun Lee, Chang Hoon Lee
  • Patent number: 7749295
    Abstract: A vacuum cleaner includes a dust collector that compresses dust stored inside a dust container to minimize the volume of the dust. The dust collector would include one or more pressing plates that are used to compress the dust stored in dust collector. Various methods are used to control movements of the movable pressing plates to facilitate the compression operations. Also, various methods are used to determine when the dust collector is full and needs to be emptied.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: July 6, 2010
    Assignee: LG Electronics Inc.
    Inventors: Man Tae Hwang, Hae Seock Yang, Hoi Kil Jeong, Myung Sig Yoo, Jae Kyum Kim, Moo Hyun Ko, Kie Tak Hyun, Jong Su Choo, Young Bok Son, Kyeong Seon Jeong, Min Park, Sung Hwa Lee, Il Joong Kim, Jin Hyouk Shin, Gun Ho Ha, Jin Wook Seo, Chang Ho Yun, Jin Young Kim, Chang Hoon Lee, Yun Hee Park
  • Patent number: 7719495
    Abstract: An organic light emitting diode display device capable of reducing power consumption by limiting a current to lower the total luminance if an area exhibiting a high luminance is larger than a threshold, and a driving method thereof are disclosed. The device includes a luminance controller for controlling an emission time of the pixel unit by determining a luminance limit of the pixel unit corresponding to a sum of the values of the video data input into one frame; and a power source controller for controlling driving of the luminance controller to correspond to the luminance limit of the pixel unit.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: May 18, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jae Sung Lee, Chang Hoon Lee
  • Publication number: 20100108971
    Abstract: Methods of forming integrated circuit devices include forming an etch stop layer on a surface of a semiconductor substrate and forming a first interlayer insulating layer on the etch stop layer. The first interlayer insulating layer is patterned to define an opening therein that exposes a first portion of the etch stop layer. This first portion of the etch stop layer is then removed to thereby expose an underlying portion of the surface of the semiconductor substrate. This removal of the etch stop layer may be performed by wet etching the first portion of the etch stop layer using a phosphoric acid solution. A semiconductor region is then selectively grown into the opening, using the exposed portion of the surface of the semiconductor substrate as an epitaxial seed layer.
    Type: Application
    Filed: July 7, 2009
    Publication date: May 6, 2010
    Inventors: Kong-Soo Lee, Kyoung-Seok Kim, Sang-Jin Park, Chang-Hoon Lee, Ji-Hyun Jeong, Jae-Hyun Park, Jae-Hee Oh
  • Patent number: 7692753
    Abstract: A flat panel display device includes a display area where pixel cells are defined by each of a plurality of data signal lines and a plurality of gate signal lines, and a plurality of inspection signal lines for inspecting line defects in the data signal lines and the gate signal lines of the display area include a connecting part in which a divided signal line overlaps underlying inspection signal lines with an insulating film therebetween.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: April 6, 2010
    Assignee: LG. Display Co., Ltd.
    Inventors: Chang Hoon Lee, Mon Soo Kang
  • Patent number: 7636147
    Abstract: A liquid crystal display panel includes a first substrate and a second substrate, a column spacer between the first substrate and the second substrate to maintain a cell-gap, contact surfaces between the column spacer and one of the first substrate and the second substrate, at least one of the contact surfaces having a plurality of holes; and a liquid crystal layer between the first substrate and the second substrate.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: December 22, 2009
    Assignee: LG Display Co., Ltd.
    Inventor: Chang-Hoon Lee
  • Patent number: D615101
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: May 4, 2010
    Assignee: LG Electronics Inc.
    Inventors: Bo Hyun Nam, Chang Hoon Lee