Patents by Inventor Cheon Lee

Cheon 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: 9224462
    Abstract: A resistive memory device that simultaneously erases memory cells connected to selected word line(s) included in an erase unit. The erase unit includes fewer word lines than are included in a memory block of the resistive memory device. However, erase verification may nonetheless be performed on a block basis.
    Type: Grant
    Filed: January 3, 2013
    Date of Patent: December 29, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: DongHun Kwak, Cheon-An Lee
  • Patent number: 9190143
    Abstract: A method of operating a variable resistance memory device comprises determining a level of an access voltage based on a number of rows or columns of a cell array, and supplying the access voltage having the determined level to the cell array.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: November 17, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Cheon An Lee, Donghun Kwak, Ingyu Baek
  • Patent number: 9135744
    Abstract: Method for filling a hole-region and a three-dimensional (3D) video system using the same. In order to synthesize an image, a plurality of images each having a different viewpoint may be obtained. By using depth maps of the obtained plurality of images, an intermediate virtual viewpoint image may be synthesized. After synthesizing, a hole-region in the intermediate virtual viewpoint image may be filled using a color image of the intermediate virtual viewpoint image, a mask image indicating the hole-region in the intermediate virtual viewpoint image, and a depth image of the intermediate virtual viewpoint image.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: September 15, 2015
    Assignee: KT CORPORATION
    Inventors: Yo-Sung Ho, Cheon Lee
  • Patent number: 9121042
    Abstract: Recombinant butyraldehyde dehydrogenases (Blds) with improved production of 1,4-BDO, as well as recombinant microorganisms comprising polynucleotides encoding the recombinant Blds, and methods of producing 1,4-BDO by using the recombinant microorganisms.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: September 1, 2015
    Assignees: SAMSUNG ELECTRONICS CO., LTD., AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Jin-hwan Park, Pyung-cheon Lee, Jae-chan Park, Young-min Lee, Woo-yong Lee
  • Patent number: 9093157
    Abstract: A three-dimensional nonvolatile memory device comprises a plurality of cell strings arranged perpendicular to a substrate. The nonvolatile memory device is programmed by identifying a selected word line and a plurality of unselected word lines connected to at least one of the cell stings, and sequentially applying a negative voltage and a pass voltage to the selected and unselected word lines, and then applying a program voltage to the selected word line while continuing to apply the pass voltage to the unselected word lines.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: July 28, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Donghun Kwak, Suna Kim, Cheon An Lee, Ho-Chul Lee
  • Publication number: 20150188179
    Abstract: A method of manufacturing an end plated for a fuel cell stack, using overmolding injection molding is provided. The method prevents damage to tapped portions in injection molding and re-tapping after the injection molding, by implementing a method of injection molding for an end plate that prevents an injection-molded part from flowing into taps by forming a male thread on a first side of each of fixing pins fitted in a metal insert in injection molding of an end plate and by fastening the fixing pins in advance in the taps of the metal insert. In addition, the method aligns the metal insert at the more accurate position while a mold is assembled, by tapering the second sides of the fixing pins.
    Type: Application
    Filed: October 10, 2014
    Publication date: July 2, 2015
    Inventors: Jung Do Suh, Yong Suk Heo, Back Nam Kim, Jae Cheon Lee, Jin Yong Park
  • Patent number: 9057849
    Abstract: The present invention relates to an optical fiber connector whereby an operator can easily couple optical fibers on site, and to an assembly method for the same. More specifically the invention relates to: an optical fiber connector wherein a guide ferrule bush is provided between a ferrule and a coil spring so as to be able to solve a problem whereby a ferrule optical fiber between a ferrule body and a reinforcing sleeve is bent, and a problem whereby contact between the ferrule body and the ferrule optical fiber is broken due to frequent movement, when the ferrule moves within a range of movement provided for by a resilient member due to the resilient member; and to an assembly method for the same.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: June 16, 2015
    Assignee: ILSIN OTS CO., LTD.
    Inventors: Chan Soul Park, Kwang Cheon Lee, Sang Chul Jun, Jun Young Park
  • Publication number: 20150160417
    Abstract: Disclosed is an optical fiber connector. The connector includes a ferrule optical fiber enclosed in a ferrule, the ferrule being elastically supported by an elastic member; and a main optical fiber. The ferrule optical fiber and the main optical fiber are fusion-spliced by a fusion splice unit. A fusion splice part is reinforced by a reinforcing sleeve and the ferrule optical fiber being integral by the reinforcing sleeve moves within a stopper.
    Type: Application
    Filed: January 14, 2015
    Publication date: June 11, 2015
    Inventors: Chan Soul PARK, Kwang Cheon Lee, Sang Chul Jun, Jun Young Park
  • Publication number: 20150163387
    Abstract: An apparatus for controlling the quantity of light incident on an image sensor by controlling size or shape of a diaphragm and also by adjusting light transmittance of the diaphragm is provided. The light control apparatus is disposed on the light path of the image sensing device and controls a quantity of light incident on the image sensor. The light control apparatus includes a Guest-Host LCD panel applied no polarizing film and a control unit for reducing the time to take multi-frame detection by driving voltages which are applied to respective pixels of the Guest-Host LCD panel, to be increased at least when taking multiple frames in series. The Guest-Host LCD panel has a plurality of pixels forming closed curves or boundaries on a plane, which are electrically driven individually. Also, the pixels have uniform light transmittance throughout the entire azimuth of the closed curves or boundaries with an origin.
    Type: Application
    Filed: December 10, 2014
    Publication date: June 11, 2015
    Inventor: Jong-Cheon LEE
  • Patent number: 9025913
    Abstract: An interposer for an optical module includes a first substrate having an optical device mounting part on which an optical device is mounted, and a second substrate including a connection via electrically connected to a terminal pattern of the optical device mounting part. The first and second substrates are coupled with each other while forming a predetermined inclination angle therebetween.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: May 5, 2015
    Assignee: LG Innotek Co., Ltd.
    Inventors: Geon Cheon Lee, Hyun Jung Lee
  • Publication number: 20150120478
    Abstract: There are provided an electronic receipt management device and a method thereof. The electronic receipt management system according to an embodiment of the present disclosure includes a data collecting device configured to detect a control event transmitted from a payment device to a printer output unit, collect data transmitted from the payment device to the printer output unit, and convert the collected data into a predefined format, and an electronic receipt management device configured to receive the data converted into a standardized format from the data collecting device, compare the received data and a user database for matching a receipt user, and issue an electronic receipt to the matching user.
    Type: Application
    Filed: December 27, 2013
    Publication date: April 30, 2015
    Applicant: Samsung SDS CO., LTD.
    Inventors: Sung Ho JANG, In Cheon LEE
  • Patent number: 8929124
    Abstract: A resistive memory device includes a resistive memory cell, and a read/program circuit configured to program the resistive memory cell from a first state to a second state. The read/program circuit reads a resistance in the first state of the resistive memory cell and adjusts a compliance current supplied to the resistive memory cell according to the read resistance during the program operation.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: January 6, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae Han Kim, Cheon An Lee
  • Patent number: 8917535
    Abstract: A variable resistance memory device comprises a variable resistance memory cells and a read/write circuit configured to provide a program voltage to the variable resistance memory cell, and further configured to adjust a compliance current flowing through the variable resistance memory cell in successive loops of a program operation.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: December 23, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Cheon An Lee, Donghun Kwak
  • Publication number: 20140348372
    Abstract: Disclosed herein is a canal type earphone with a pressure equilibrium means, capable of eliminating a pressure difference between a user's external auditory meatus and an outside during wearing of the canal type earphone. A pressure equilibrium means includes a side air passage through which air within a tube or air within a speaker unit in the canal type earphone is discharged to a side surface of a gasket or a side surface of the speaker unit, and a rear air passage through which air in the side surface of the speaker unit is discharged to the rear of the speaker unit.
    Type: Application
    Filed: May 27, 2014
    Publication date: November 27, 2014
    Applicant: BUJEON CO., LTD.
    Inventors: Dong Hyun SEO, Seung Cheol LEE, Su Cheon LEE
  • Patent number: 8846750
    Abstract: The present invention relates to pharmaceutical and food compositions for preventing or treating diabetes or obesity, and more particularly to pharmaceutical compositions and functional foods for preventing or treating diabetes or obesity, which contain, as an active ingredient, a novel compound synthesized from a compound separated from an extract of the Stereocaulon alpinum. The novel compounds of the invention have very excellent PTP-1b (protein tyrosine phosphatase-1b) inhibitory activities, act selectively only on PTP-1b among protein tyrosine phosphatases, and are substantial PTP-1b inhibitors which are effective in preventing or treating diabetes or obesity.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: September 30, 2014
    Assignee: Korea Ocean Research and Development Institute
    Inventors: Joung Han Yim, Il Chan Kim, Doc Kyu Kim, Se Jong Han, Hyoung Seok Lee, Bhattarai Hari Datta, Jung Eun Kim, Tai Kyoung Kim, Hyun Cheol Oh, Dong-Gyu Jo, Cheolsoon Lee, Keun-Sik Kim, Pyung Cheon Lee, Mi Ra Park, Yu-Kyung Park, Sung Jin Kim, Pil-Sung Kang, Heeyong Park, Ha Ju Park
  • Patent number: 8847133
    Abstract: A door for a cooking apparatus and a cooling system for the door are provided. A fan for creating flows of air into and out of a cavity assembly is also used to create flows of air in a door cooling passage of the door. Therefore, the door can be cooled in a simple manner.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: September 30, 2014
    Assignee: LG Electronics Inc.
    Inventor: Byeong-Cheon Lee
  • Patent number: 8755242
    Abstract: A high voltage generating circuit includes first and second high voltage pump circuits and an oscillator. The oscillator is configured to output a first clock signal driving the first high voltage pump circuit and a second clock signal driving the second high voltage pump circuit. The oscillator includes a first delay circuit configured to output the second clock signal by delaying the first clock signal by a first delay time. The first delay circuit is configured to adjust the first delay time according to a period of the first clock signal.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: June 17, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Cheon An Lee, Doogon Kim
  • Patent number: 8729615
    Abstract: A semiconductor memory device has a memory cell region and a peripheral region. The device includes low voltage transistors at the peripheral region having gate insulation films with different thicknesses. For example, a gate insulation film of a low voltage transistor used in an input/output circuit of the memory device may be thinner than the gate insulation film of a low voltage transistor used in a core circuit for the memory device. Since low voltage transistors used at an input/output circuit are formed to be different from low voltage transistors used at a core circuit or a high voltage pump circuit, high speed operation and low power consumption characteristics of a non-volatile memory device may be.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: May 20, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Hyun Lee, Young-Woo Park, Kye-Hyun Kyung, Cheon-An Lee, Sung-il Chang, Chul Bum Kim
  • Publication number: 20140118501
    Abstract: Disclosed is a calibration system for stereo cameras. The calibration system includes a rig control module configured to, when a camera calibration parameter is input, control an auto rig according to the camera calibration parameter to perform physical calibration for a camera, a stereo image calibration apparatus configured to calibrate a stereo image to acquire the camera calibration parameter, and output the acquired camera calibration parameter, and a camera control module configured to output the camera calibration parameter, which is input from the stereo image calibration apparatus, to the rig control module, or screen-output the camera calibration parameter. Therefore, physical calibration and image processing calibration for a camera are performed in association with each other.
    Type: Application
    Filed: August 1, 2011
    Publication date: May 1, 2014
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Je Woo Kim, Byeong Ho Choi, Dong Sun Kim, Hyok Song, Cheon Lee
  • Patent number: 8703814
    Abstract: The present invention relates to pharmaceutical and food compositions for preventing or treating diabetes or obesity, and more particularly to pharmaceutical compositions and functional foods for preventing or treating diabetes or obesity, which contain, as an active ingredient, a novel compound synthesized from a compound separated from an extract of the Stereocaulon alpinum. The novel compounds of the invention have very excellent PTP-1b (protein tyrosine phosphatase-1b) inhibitory activities, act selectively only on PTP-1b among protein tyrosine phosphatases, and are substantial PTP-1b inhibitors which are effective in preventing or treating diabetes or obesity.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: April 22, 2014
    Assignee: Korea Ocean Research and Development Institute
    Inventors: Joung Han Yim, Il Chan Kim, Doc Kyu Kim, Se Jong Han, Hyoung Seok Lee, Bhattarai Hari Datta, Jung Eun Kim, Tai Kyoung Kim, Hyun Cheol Oh, Dong-Gyu Jo, Cheolsoon Lee, Keun-Sik Kim, Pyung Cheon Lee, Mi Ra Park, Yu-Kyung Park, Sung Jin Kim, Pil-Sung Kang, Heeyong Park, Ha Ju Park