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).

  • VACUUM CLEANER WITH REMOVABLE DUST COLLECTOR, AND METHODS OF OPERATING THE SAME
    Publication number: 20090293223
    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: Application
    Filed: March 19, 2009
    Publication date: December 3, 2009
    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
  • VACUUM CLEANER AND DUST SEPARATING APPARATUS THEREOF
    Publication number: 20090293224
    Abstract: A dust separating apparatus for a vacuum cleaner is provided. The dust separating apparatus includes a cyclone configured to provide a plurality of cyclone airflows therein and a dust container provided separate from the cyclone. The cyclone includes a first air inlet configured to receive an airflow containing dust and a dust outlet configured to discharge dust separated by the plurality of cyclone airflows. The dust outlet is located in a central portion of the cyclone. The dust container is removably placeable into communication with the dust outlet to collect dust separated in the cyclone. A vacuum cleaner including the dust separating apparatus is also provided.
    Type: Application
    Filed: August 7, 2009
    Publication date: December 3, 2009
    Inventors: Kie-Tak Hyun, Hae-Seock Yang, Kyeong-Seon Jeong, Chang-Hoon Lee, Seong-Koo Cho, Geun-Bae Hwang, Jin-Wook Seo, Heon-Pyeong Ji, Man-Tae Hwang, Young-Ho Kim, Hyo-Churl Shin, Jin-Hyouk Shin, Hoi-Kil Jeong, Moo-Hyun Ko
  • VACUUM CLEANER WITH REMOVABLE DUST COLLECTOR, AND METHODS OF OPERATING THE SAME
    Publication number: 20090293221
    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: Application
    Filed: March 19, 2009
    Publication date: December 3, 2009
    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
  • VACUUM CLEANER WITH REMOVABLE DUST COLLECTOR, AND METHODS OF OPERATNG THE SAME
    Publication number: 20090293915
    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: Application
    Filed: March 19, 2009
    Publication date: December 3, 2009
    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
  • VACUUM CLEANER AND METHOD OF CONTROLLING THE SAME
    Publication number: 20090266382
    Abstract: A vacuum cleaner and a method of controlling the vacuum cleaner are provided. The vacuum cleaner may include a main body, a dust collection device mounted in the main body, at least one compression member that compresses the dust in the dust collection device, and a driver that drives the compressing member.
    Type: Application
    Filed: March 20, 2009
    Publication date: October 29, 2009
    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, Hyuk-Min KWON, Young-Gun MIN
  • VACUUM CLEANER
    Publication number: 20090255083
    Abstract: A vacuum cleaner is provided. The vacuum cleaner may include a dust collection container that stores dust, a compression member that is provided in the dust collection container and which is capable of rotating in first and second directions, and a driver that rotates the compression member. The compression member rotates in a first space corresponding to a first angle range and at least a portion of the dust is stored in a second space corresponding to a second angle range.
    Type: Application
    Filed: March 20, 2009
    Publication date: October 15, 2009
    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, Hyuk-Min Kwon
  • Vacuum cleaner
    Patent number: 7601188
    Abstract: A vacuum cleaner includes at least one cyclone dust separation unit. A cover is formed over the cyclone dust separation unit to attenuate noise generated by the cyclone unit. Dimples or recesses may be formed on the interior of the cover to further attenuate noise. In addition, a noise attenuating material may be inserted between the cyclone dust separation unit and the cover.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: October 13, 2009
    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
  • VACUUM CLEANER
    Publication number: 20090249578
    Abstract: A vacuum cleaner is provided. The vacuum cleaner may include a main body, a dust collector, at least one pressing member, and a driver. The dust collector may be detachably attached to the main body and may include a dust storage chamber. The at least one pressing member may compress dust stored in the dust storage chamber. The driver may be disposed in the dust collector and actuate the at least one pressing member.
    Type: Application
    Filed: March 20, 2009
    Publication date: October 8, 2009
    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
  • Organic light emitting display device composed of multiple display panels
    Publication number: 20090251426
    Abstract: An organic light emitting display device that is used as a flat panel display and usable in a portable terminal that employs two separate display-panels. The organic light emitting display device has a first display panel and a second display panel provided on the same surface thereof; a touch screen panel (TSP) formed integrally on the first and second display panels; and one controller controlling the first and second display panels.
    Type: Application
    Filed: February 13, 2009
    Publication date: October 8, 2009
    Inventors: Patrick Lee, Chang-Hoon Lee, Myeong-Gil Choi
  • Organic light emitting display device
    Publication number: 20090251431
    Abstract: An organic light emitting display device (OLED display) having a first display panel and a second display panel arranged on the same surface thereof. The OLED display includes first and second display panels arranged on a same surface, a touch screen panel arranged integrally on the first and second display panels, a touch screen panel controller adapted to drive the touch screen panel and a display controller adapted to control the first and second display panels, the display controller being further adapted to separate information displayed on the display panels into an image signal and a data signal corresponding to the image signal, the display controller being further adapted to supply the separated image signal and data signal to the first and second display panels, respectively.
    Type: Application
    Filed: April 3, 2009
    Publication date: October 8, 2009
    Inventors: Chang-Hoon Lee, Patrick Lee, Soo-Hak Seo, Suh-Jin Yi, Hyun-Sook Kim
  • Method of fabricating static random access memory
    Patent number: 7598141
    Abstract: A method of fabricating a static random access memory device includes selectively removing an insulating film and growing a single crystalline silicon layer using selective epitaxy growth, the single crystalline silicon layer being grown in a portion from which the insulating film is removed; recessing the insulating film; and depositing an amorphous silicon layer on the single crystalline silicon layer and the insulating film, such that the amorphous silicon layer partially surrounds a top surface and side surfaces of the single crystalline silicon layer.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: October 6, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hoon Lee, Sang-Jin Park, Won-Seok Yoo, Kong-Soo Lee
  • VACUUM CLEANER
    Publication number: 20090241286
    Abstract: A vacuum cleaner is disclosed. The vacuum cleaner may include a cleaner body, in which a suction motor is provided; a dust collector selectively attached to the cleaner body, in which a dust container is formed; at least one pressing element that presses dust stored in the dust container; and a drive device that drives the at least one pressing element.
    Type: Application
    Filed: March 20, 2009
    Publication date: October 1, 2009
    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, Hyuk-Min Kwon
  • Display device and driving method thereof with improved luminance
    Publication number: 20090244387
    Abstract: A display device and a driving method thereof in which if an input 2D/3D video signal is a 2D video signal, an image data signal is generated by applying a first gamma correction curved line. If the input 2D/3D video signal is a 3D video signal, an image data signal is generated by applying the second gamma correction curved line. Luminance of a maximum grayscale of the first gamma correction curved line is set to be lower than luminance of a maximum grayscale of the second gamma correction curved line. Therefore, it is possible to prevent luminance of the display device from deteriorating by a barrier in a 3D driving mode.
    Type: Application
    Filed: January 14, 2009
    Publication date: October 1, 2009
    Inventors: Jae-Sung Lee, Chang-Hoon Lee
  • VACUUM CLEANER WITH REMOVABLE DUST COLLECTOR, AND METHODS OF OPERATING THE SAME
    Publication number: 20090235956
    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: Application
    Filed: March 16, 2009
    Publication date: September 24, 2009
    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
  • VACUUM CLEANER WITH REMOVABLE DUST COLLECTOR, AND METHODS OF OPERATING THE SAME
    Publication number: 20090229072
    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: Application
    Filed: March 16, 2009
    Publication date: September 17, 2009
    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
  • VACCUM CLEANER WITH REMOVABLE DUST COLLECTOR, AND METHODS OF OPERATING THE SAME
    Publication number: 20090229073
    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: Application
    Filed: March 19, 2009
    Publication date: September 17, 2009
    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
  • Vacuum cleaner
    Patent number: 7582128
    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: March 2, 2007
    Date of Patent: September 1, 2009
    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
  • PLANE SWITCHING MODE LIQUID CRYSTAL DISPLAY DEVICE HAVING IMPROVED CONTRAST RATIO
    Publication number: 20090190083
    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: Application
    Filed: April 9, 2009
    Publication date: July 30, 2009
    Applicant: LG. Display Co., Ltd.
    Inventors: Min-Jic Lee, Chang-Hoon Lee, Hee-Dong Choi
  • Liquid crystal display device and method of fabricating the same
    Patent number: 7567333
    Abstract: A color filter substrate for a liquid crystal display device includes a substrate having a plurality of pixel regions, a black matrix array having a lattice configuration on the substrate, the black matrix array corresponding to boundary regions between adjacent ones of the pixel regions, a plurality of color filter layers, each corresponding to one of the pixel regions, and a column spacer array having a lattice configuration, the column spacer array corresponding to the black matrix array.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: July 28, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Chang-Hoon Lee, Il-Man Choi
  • Recessed gate electrode and method of forming the same and semiconductor device having the recessed gate electrode and method of manufacturing the same
    Patent number: 7563677
    Abstract: A recessed gate electrode structure includes a first recess and a second recess in communication with the first recess both formed in a substrate. The second recess is larger than the first recess. A gate dielectric layer is formed on a top surface of the substrate and on an inner surface of the first and second recesses. A first polysilicon layer fills the first recess and is doped with impurities at a first impurity density. A second polysilicon layer fills the second recess and is doped with the impurities at a second impurity density. A void is defined within the second polysilicon layer. A third polysilicon layer is formed on the gate dielectric and first polysilicon layers and is doped with the impurities at a third impurity density. Due to impurities in the second polysilicon layer, migration of the void within the second recess may be substantially prevented.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: July 21, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae-Han Yoo, Kong-Soo Lee, Chang-Hoon Lee, Yong-Woo Hyung, Hyeon-Deok Lee, Hyo-Jung Kim, Jung-Hwan Oh, Young-Sub You