Patents by Inventor Jae Chul Lee

Jae Chul 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: 7638642
    Abstract: 3R-carboxylate enantiomer derivative of formula (III) can be prepared easily and selectively by the method of the present invention, and a highly pure D-erythro-2,2-difluoro-2-deoxy-1-oxoribose derivative can be prepared efficiently from the compound of formula (III) as an intermediate.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: December 29, 2009
    Assignee: Hanmi Pharm, Co., Ltd
    Inventors: Jaeheon Lee, Gha-Seung Park, Moonsub Lee, Cheol-Kyong Kim, Jae-Chul Lee, Young-Kil Chang, Gwan-Sun Lee
  • Patent number: 7591916
    Abstract: In Cu-based bulk amorphous matrix composite materials, comprising a Cu-based amorphous alloy containing high fusion point element(s) selected from a group of Ta, W or combination thereof, wherein the high fusion point element(s) has(have) a shape of crystalline grain and is(are) dispersed around a Cu-based amorphous matrix. Cu-based bulk amorphous matrix composite materials have the composition expressed as the following Chemical formula 1; CuaZrbTicRd??[Chemical formula 1] where R is Ta, W or combination thereof, a, b, c and d are atomic weight ratio, a+b+c+d equals 100, a, b, c, and d have the range of 45?a?65, 10?b?35, 5?c?30, and 5?d?10, respectively.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: September 22, 2009
    Assignee: Korea Institute of Science & Technology
    Inventors: Yu Chan Kim, Jae Chul Lee, Do Hyang Kim, Eric Fleury
  • Publication number: 20090214772
    Abstract: An apparatus and method for coating a powder material on a substrate is disclosed, to enable various materials such as metal or ceramic powder to be coated on a substrate made of a material having low heat-resistance, the method including supplying a predetermined powder; carrying the supplied powder to a predetermined spraying nozzle by injecting a gas at a room temperature; and spraying the powder carried under conditions of the room temperature and vacuum state on the substrate through spraying nozzle, wherein the grain size of predetermined powder is in a range between about 0.1 to about 10 ?m, and the powder is sprayed on the substrate at a velocity of about 500 to about 1200 m/sec.
    Type: Application
    Filed: February 27, 2008
    Publication date: August 27, 2009
    Applicant: SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION
    Inventors: Sung Hoon Ahn, Doo Man Chun, Min Hyeng Kim, Jae Chul Lee
  • Publication number: 20090128584
    Abstract: A sub-pixel data conversion apparatus may include: a gamma correction block that converts input sub-pixel data to first sub-pixel data; and a dithering process block that generates a first dithering mask pattern and that performs a first dithering operation on the first sub-pixel data to a second sub-pixel data based on the generated first dithering mask pattern. A sub-pixel data gamma correction method may include setting error data for gamma correction on sub-pixel data and extracting error data corresponding to input sub-pixel data, adding the extracted error data and the input sub-pixel data, and converting the input sub-pixel data to first sub-pixel data based on a result of the addition. A sub-pixel data dithering method may include: generating a first dithering mask pattern and performing a first dithering operation; and generating a second dithering mask pattern and performing a second dithering operation.
    Type: Application
    Filed: September 26, 2008
    Publication date: May 21, 2009
    Inventors: Jae Chul Lee, Keun-Ho Ryu, Jong Seon Kim
  • Publication number: 20080224983
    Abstract: A method and apparatus of compensating for a kick-back voltage to reduce the generation of flicker in a liquid crystal display (LCD). The method of compensating for a kick-back voltage includes correcting input pixel data using a kick-back correction function that meets a condition on which a response characteristic of a voltage detected from a pixel electrode of a liquid crystal cell for a positive input pixel signal and a response characteristic of a voltage detected from the pixel electrode of the liquid crystal cell for a negative input pixel signal become symmetrical without causing a saturation state on a basis of a kick-back voltage measured from an LCD panel to generate corrected pixel data, and driving the LCD panel using the corrected pixel data.
    Type: Application
    Filed: March 13, 2008
    Publication date: September 18, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jae-chul LEE, Jong-seon Kim
  • Publication number: 20080225054
    Abstract: A dithering system includes a linear transformer, a dither data generator, an adder and a shifter. The transformer linearly transforms M bit input data using a linear function having a predetermined gradient in order to generate and output M bit transform data. The dither data generator generates and outputs M?N bit dither data. The adder adds the M bit transform data and the M?N bit dither data to generate and output M bit correction data. The shifter cuts off the bottom M?N bits of the M bit correction data in order to generate and output the N bit output data. The dithering system and associated dithering method widely disperses an error generated due to a physical limit of a data bit that can be expressed by a low gray scale system throughout the entirety of the gray scales when high gray scale image data is converted to low gray scale image data. This is done without using a lookup table which avoids using valuable chip area.
    Type: Application
    Filed: November 28, 2007
    Publication date: September 18, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-min KIM, Jae-chul LEE, Jong-seon KIM
  • Publication number: 20080224976
    Abstract: A method of temporally and/or spatially randomly dithering, to facilitate converting an input M-bit subpixel signal into an (M?N)-bit subpixel signal, may include spatially and/or temporally randomly generating a dithering mask pattern satisfying a condition that a spatial mean and/or a temporal mean of an image signal before dithering matches a spatial mean and/or a temporal mean of the image signal after dithering, respectively, and converting the M-bit subpixel signal into the (M?N)-bit subpixel signal using the dithering mask pattern.
    Type: Application
    Filed: March 12, 2008
    Publication date: September 18, 2008
    Inventors: Jae-chul Lee, Jong-seon Kim, Young-min Choi, Keun-ho Ryu
  • Publication number: 20080204444
    Abstract: A timing controller to reduce a flicker in a display device is provided. The timing controller includes a line pattern detector and a frame pattern detector. The line pattern detector divides received data into a plurality of unit blocks and detects a line polarity of each of a plurality of horizontal lines included in each of the unit blocks. The frame pattern detector generates a polarity control signal to control a data inversion method based on a frame image pattern detected based on line polarities of the respective horizontal lines.
    Type: Application
    Filed: August 2, 2007
    Publication date: August 28, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Keun-Ho Ryu, Young Min Choi, Jong Seon Kim, Jae Chul Lee
  • Publication number: 20080194828
    Abstract: Optically pure esomeprazole and its salt can be simply prepared by dissolving (S)-(?)-binol, a weak base and the racemic form of omeprazole in a mixture of a water-compatible organic solvent and water at a high temperature, cooling the mixed solution to crystallize the inclusion complex of esomeprazole and (S)-(?)-binol, and removing the (S)-(?)-binol moiety from the crystallized inclusion complex.
    Type: Application
    Filed: July 11, 2006
    Publication date: August 14, 2008
    Inventors: Tae Hee Ha, Won Jeong Kim, Hee Sook Oh, Chang Hee Park, Jae Chul Lee, Han Kyong Kim, Kwee-Hyun Suh
  • Publication number: 20080058509
    Abstract: 3R-carboxylate enantiomer derivative of formula (III) can be prepared easily and selectively by the method of the present invention, and a highly pure D-erythro-2,2-difluoro-2-deoxy-1-oxoribose derivative can be prepared efficiently from the compound of formula (III) as an intermediate.
    Type: Application
    Filed: June 23, 2005
    Publication date: March 6, 2008
    Applicant: HANMI PHARM, CO., LTD.
    Inventors: Jaeheon Lee, Gha-Seung Park, Moonsub Lee, Cheol-Kyong Kim, Jae-Chul Lee, Young-Kil Chang, Gwan-Sun Lee
  • Publication number: 20070175550
    Abstract: In Cu-based bulk amorphous matrix composite materials, comprising a Cu-based amorphous alloy containing high fusion point element(s) selected from a group of Ta, W or combination thereof, wherein the high fusion point element(s) has(have) a shape of crystalline grain and is(are) dispersed around a Cu-based amorphous matrix. Cu-based bulk amorphous matrix composite materials have the composition expressed as the following Chemical formula 1; [Chemical formula 1] CuaZrbTicRd where R is Ta, W or combination thereof, a, b, c and d are atomic weight ratio, a+b+c+d equals 100, a, b, c, and d have the range of 45?a?65, 10?b?35, 5?c?30, and 5?d?10, respectively.
    Type: Application
    Filed: April 2, 2007
    Publication date: August 2, 2007
    Applicant: Korea Institute of Science & Technology
    Inventors: Yu Chan Kim, Jae Chul Lee, Do Hyang Kim
  • Patent number: 7244608
    Abstract: The present invention relates to a novel microorganism, Corynebacterium ammoniagenes strain CJIP009 having Accession No. KCCM-10226, which is capable of producing 5?-inosinic acid and a process for producing 5?-inosinic acid using the same.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: July 17, 2007
    Assignee: Cheil Jedang Corporation
    Inventors: Hyun-Soo Kim, Sung-Oh Chung, Jin-Ho Lee, Sung-Goo Kang, Jeong-Hwan Kim, Soo-Youn Hwang, Byung-Chon Lee, Jae-Chul Lee
  • Patent number: 7189661
    Abstract: There are provided a method and an apparatus of forming an insulating layer including silicon oxynitride. The method includes performing a plasma treatment process for supplying a plasma reaction gas to a substrate to be treated after completing the annealing process. The apparatus includes a sealed processing room having gas supply and exhaust lines running thereto. A quartz inner tube and quartz inlet pipe both include holes therethrough, but in orthogonal directions to one another, to flow a reaction gas onto the wafers loaded within the sealed processing room.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: March 13, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Sub You, Cheol-Kyu Yang, Woong Lee, Jae-Chul Lee, Hun-Hyeoung Leam
  • Publication number: 20060063391
    Abstract: There are provided a method and an apparatus of forming an insulating layer including silicon oxynitride. The method includes performing a plasma treatment process for supplying a plasma reaction gas to a substrate to be treated after completing the annealing process. The apparatus includes as sealed processing room having gas supply and exhaust lines running thereto. A quartz inner tube and quartz inlet pipe both include holes therethrough, but in orthogonal directions to one another, to flow a reaction gas onto the wafers loaded within the sealed processing room.
    Type: Application
    Filed: July 13, 2005
    Publication date: March 23, 2006
    Inventors: Young-Sub You, Cheol-Kyu Yang, Woong Lee, Jae-Chul Lee, Hun-Hyeoung Leam
  • Patent number: 7015337
    Abstract: The present invention provides a novel process for preparing a compound represented by the above formula 7, which is an important intermediate for an oral thrombin inhibitor, by one-pot reaction. In accordance with the present invention, the above intermediate for the thrombin inhibitor may be obtained in a high yield.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: March 21, 2006
    Assignee: LG Life Sciences Ltd.
    Inventors: Suk Kyoon Yoon, Bong Chan Kim, Won Hyuk Jung, Jae Chul Lee, Koo Lee, Cheol Won Park
  • Publication number: 20060030134
    Abstract: An ion source for ionizing a source gas includes an arc chamber housing defining an arc chamber to receive the source gas. The arc chamber has a first region and a second region. An electron emitting device is disposed in the arc chamber adjacent the first region and is adapted to emit electrons into the first and the second regions to ionize the source gas. An electron returning device is disposed in the arc chamber adjacent the second region and is adapted to return at least some of the electrons emitted from the electron emitting device into the second region. A gas supply system is adapted to direct the source gas into the first region and into the second region. According to some embodiments, the gas supply system is adapted to provide a greater mass flow rate of the source gas into the first and second regions than is provided into other regions of the arc chamber.
    Type: Application
    Filed: July 11, 2005
    Publication date: February 9, 2006
    Inventors: Yong-Kwon Kim, Jae-Chul Lee, Sung-Ho Kang, Sang-Chul Lee, Ui-Yong Jeoung
  • Publication number: 20050263073
    Abstract: A furnace for heating a wafer is provided comprising a process chamber including a space for processing a plurality of wafers. A heating member is disposed in the process chamber which generates a light and heat for heating the wafers. Moreover, a light blocking member is disposed in the process chamber for preventing the light from being transmitted onto the wafers but which permits the heat to be transmitted onto the wafers for heating the wafers. The furnace can be employed in an apparatus for chemical vapor deposition.
    Type: Application
    Filed: May 6, 2005
    Publication date: December 1, 2005
    Inventors: Sung-Ho Kang, Jae-Chul Lee, Sang-Cheol Ha, In-Pil Cha, Duk-Young Jang, Sung-Bum Park, Cheol-Kyu Yang
  • Publication number: 20050193841
    Abstract: The starter motor for a vehicle is capable of achieving a minimum and optimum size of a magnet switch and a starter motor in such a manner that a lever ratio R and an air gap A are improved in a range satisfying a designated moving distance P of a pinion. There is provided an improved starter motor for a vehicle characterized in that an air gap A is set below 8 mm, and a lever ratio R is adjusted above 1.67, whereby a moving distance P of the pinion is about 13 mm. In addition, there is provided an improved starter motor for a vehicle characterized in that the multiplication of air gap A and lever ratio R is below 14 mm, whereby a moving distance P of the pinion is about 13 mm.
    Type: Application
    Filed: February 9, 2005
    Publication date: September 8, 2005
    Applicant: Valeo Electrical Systems Korea Limited
    Inventors: Sang-Hyuk Ahn, Jung-Yeol Lee, Soo-Sin Kim, Jae-Chul Lee, Byung-Chan Seo, Jong-in Lee
  • Publication number: 20050127036
    Abstract: A method of cleaning a reaction chamber is provided. In the method, a wafer is removed from the reaction chamber, and a nitrogen triflouride (NF3) gas or NF3 plasma is implanted into the reaction chamber. The NF3 gas or NF3 plasma reacts with a phosphorous polymer located in the reaction chamber, and the phosphorus polymer is removed from the reaction chamber.
    Type: Application
    Filed: November 16, 2004
    Publication date: June 16, 2005
    Inventors: Young-Jin Kim, Jin-Kuk Kim, Won-Sik Shin, Byung-Ho Ahn, Jae-Chul Lee, Ki-Hyun Hwang
  • Publication number: 20040256031
    Abstract: In Cu-based bulk amorphous matrix composite materials, comprising a Cu-based amorphous alloy containing high fusion point element(s) selected from a group of Ta, W or combination thereof, wherein the high fusion point element(s) has(have) a shape of crystalline grain and is(are) dispersed around a Cu-based amorphous matrix.
    Type: Application
    Filed: August 14, 2003
    Publication date: December 23, 2004
    Applicant: Korea Institute of Science and Technology
    Inventors: Yu Chan Kim, Jae Chul Lee, Do Hyang Kim