Patents by Inventor Cheon An Lee

Cheon An 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).

  • Resistive memory device and related method of operation
    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
  • Variable resistance memory device and related method of operation
    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
  • Canal Type Earphone with Pressure Equilibrium Means
    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
  • Door for ventilation hooded microwave oven and cooling system for the same
    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
  • Pharmaceutical and food compositions for preventing or treating diabetes or obesity
    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
  • High voltage generating circuit and method of operating the same
    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
  • Non-volatile memory device with high speed operation and lower power consumption
    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
  • CALIBRATION SYSTEM FOR STEREO CAMERA AND CALIBRATION APPARATUS FOR CALIBRATING STEREO IMAGE
    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
  • Pharmaceutical and food compositions for preventing or treating diabetes or obesity
    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
  • Pharmaceutical and food compositions for preventing or treating diabetes or obesity
    Patent number: 8697745
    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 15, 2014
    Assignee: Korea Ocean Research 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
  • Organic-inorganic hybrid scaffolds with surface-immobilized nano-hydroxyapatite and preparation method thereof
    Patent number: 8691882
    Abstract: Provided are an organic-inorganic hybrid scaffold with surface-immobilized nano-hydroxyapatite, and a method for the fabrication thereof. The scaffold is fabricated by reacting an acid group present on a surface of nano-hydroxyapatite with a primary amine present on a surface of a polymer support in the presence of EDC (1-ethyl-3-dimethylaminopropyl carbodiimide) to immobilize nano-hydroxyapatite onto the surface of the polymer support. The surface of nano-hydroxyapatite is previously grafted with poly(ethylene glycol methacrylate phosphate) (PolyEGMP) having phosphonic acid functionality or with a polymer having carboxylic acid functionality.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: April 8, 2014
    Assignee: Korea Institute of Ceramic Engineering & Technology
    Inventors: Sang Cheon Lee, Jeong Ho Chang, Jin Hyung Lee, Kyung Ja Kim, Sung Eun Kim, Ho Chan Hwang, Ke-Won Kang, Seog-Jin Seo, Jin-Young Kim
  • PHARMACEUTICAL AND FOOD COMPOSITIONS FOR PREVENTING OR TREATING DIABETES OR OBESITY
    Publication number: 20140094514
    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: Application
    Filed: May 22, 2013
    Publication date: April 3, 2014
    Applicant: 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
  • Mobile terminal and screen displaying method thereof
    Patent number: 8681105
    Abstract: A mobile terminal and screen displaying method thereof are disclosed, by which an image can be displayed on a screen using a virtual polyhedral pillar. The present invention includes a user input unit for inputting key signals, a display for displaying a first facet of a polyhedral pillar, and a controller, if a specific key signal is inputted, the controller controlling a second facet of the polyhedral pillar to be displayed on the display by rotating the polyhedral pillar.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: March 25, 2014
    Assignee: LG Electronics Inc.
    Inventors: Han Sol Huh, Yeu Cheon Lee, Ha Yang Jung, Ka Eun Lee
  • PHARMACEUTICAL AND FOOD COMPOSITIONS FOR PREVENTING OR TREATING DIABETES OR OBESITY
    Publication number: 20140073614
    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: Application
    Filed: May 22, 2013
    Publication date: March 13, 2014
    Applicant: 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
  • ENZYME USED IN BIOSYNTHESIS OF 1, 4-BDO AND SCREENING METHOD OF THE SAME
    Publication number: 20140045232
    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: Application
    Filed: July 30, 2013
    Publication date: February 13, 2014
    Inventors: Jin-hwan PARK, Pyung-cheon LEE, Jae-chan PARK, Young-min LEE, Woo-yong LEE
  • INTERPOSER FOR OPTICAL MODULE, OPTICAL MODULE USING THE SAME, METHOD FOR MANUFACTURING THE SAME
    Publication number: 20140037243
    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: Application
    Filed: April 13, 2012
    Publication date: February 6, 2014
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Geon Cheon Lee, Hyun Jung Lee
  • COMPOSITION FOR PREVENTING OR TREATING OBESITY
    Publication number: 20130280231
    Abstract: Provided is a composition for preventing or treating obesity, and more particularly, a composition for preventing or treating obesity in order to treat or improve states of obese patients requiring weight control. The composition according to the present invention has advantages in that side effects by administration of the composition are not generated, and effects of losing weight and maintaining weight are excellent without changing food intake and consumption amounts, such that the composition may be effectively used to prevent overweight and obesity related diseases.
    Type: Application
    Filed: April 19, 2013
    Publication date: October 24, 2013
    Applicant: ELE Life Science Co., Ltd.
    Inventor: Jae Cheon LEE
  • PHARMACEUTICAL AND FOOD COMPOSITIONS FOR PREVENTING OR TREATING DIABETES OR OBESITY
    Publication number: 20130261174
    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: Application
    Filed: July 1, 2011
    Publication date: October 3, 2013
    Applicant: 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
  • NONVOLATILE MEMORY DEVICE AND RELATED METHOD OF PROGRAMMING
    Publication number: 20130242675
    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: Application
    Filed: November 7, 2012
    Publication date: September 19, 2013
    Inventors: DONGHUN KWAK, SUNA KIM, CHEON AN LEE, HO-CHUL LEE
  • RESISTIVE MEMORY DEVICE AND RELATED METHOD OF OPERATION
    Publication number: 20130235648
    Abstract: A resistive memory device comprises 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: Application
    Filed: February 13, 2013
    Publication date: September 12, 2013
    Applicant: SAMSUNG SEMICONDUCTOR CO., LTD.
    Inventors: DAE HAN KIM, CHEON AN LEE