Patents by Inventor Du Kim

Du Kim 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: 7518873
    Abstract: A heat spreader includes a heat sinking plate and a pressure clip. The heat sinking plate radiates the heat away from a heat source. The pressure clip fixes the heat sinking plate to the heat source. The pressure clip includes a spine (pressing part), one or more ribs and hook parts. The spine is arranged on the heat sinking plate. The one or more ribs extend from the spine and contact the heat source. The hook parts extend from the spine and are supported by the heat source. The pressure clip further includes mounting parts that couple the spine to the hook parts. A bending space is formed between the spine and the heat sinking plate. The heat spreader may be attached to a printed circuit board (PCB) with, e.g., a one-touch method, so that assembling processes of the memory module may be automated.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: April 14, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Yong Park, Hyun-Jong Oh, Yong-Hyun Kim, Dong-Woo Shin, Kyung-Du Kim, Dong-Chun Lee, Kwang-Ho Chun
  • Publication number: 20090015698
    Abstract: Provided are an apparatus and a method for compensating signal distortion caused by noise. The apparatus comprises a noise reduction unit which reduces noise of an input signal including non-zero mean random noise, and a signal compensator which compensates the output signal of the noise reduction unit so that a signal distortion due to the non-zero mean random noise is removed from the output signal of the noise reduction unit.
    Type: Application
    Filed: February 6, 2008
    Publication date: January 15, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Il-du Kim, Jae-sung Jun, Byung-sun Choi
  • Publication number: 20080023812
    Abstract: Example embodiments relate to a semiconductor package. The semiconductor package may include a mounting substrate, a semiconductor chip mounted to the mounting substrate, at least one passive component passing therethrough and mounted to the mounting substrate, and a cover covering the mounting substrate, the semiconductor chip and the at least one passive component.
    Type: Application
    Filed: July 20, 2007
    Publication date: January 31, 2008
    Inventors: Hyo-jae Bang, Dong-chun Lee, Seong-chan Han, Kyung-du Kim, Sun-kyu Hwang
  • Publication number: 20070152793
    Abstract: A chip-type inductor comprising includes internal magnetic material, external magnetic material disposed on opposing sides of the internal magnetic material, and a conductor formed in a space between the internal and external magnetic material. The internal and external magnetic materials form a magnetic path along which magnetic flux of a magnetic field produced by current flowing along the conductor flows. According to at least one embodiment, the flow cross-sectional area of the magnetic flux in the internal magnetic material is at least substantially equal to a sum of the flow cross-sectional areas in the external magnetic materials.
    Type: Application
    Filed: December 28, 2006
    Publication date: July 5, 2007
    Inventors: Sung Kim, Il Cho, Jae Uhm, Du Kim, Jong Seo
  • Patent number: 7202360
    Abstract: Risperidone is prepared in a high yield by reacting 2,4-difluorophenyl(4-piperidinyl)methanone oxime hydrochloride and 3-(2-chloroethyl)-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one in an aqueous alkali hydroxide solution having an alkali hydroxide concentration in the range of 20 to 40%.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: April 10, 2007
    Assignee: Hanmi Pharm Co., Ltd.
    Inventors: Nam-Du Kim, Jae-Heon Lee, Moon-Sub Lee, Young-Kil Chang, Gwan-Sun Lee
  • Publication number: 20070008703
    Abstract: A heat spreader includes a heat sinking plate and a pressure clip. The heat sinking plate radiates the heat away from a heat source. The pressure clip fixes the heat sinking plate to the heat source. The pressure clip includes a spine (pressing part), one or more ribs and hook parts. The spine is arranged on the heat sinking plate. The one or more ribs extend from the spine and contact the heat source. The hook parts extend from the spine and are supported by the heat source. The pressure clip further includes mounting parts that couple the spine to the hook parts. A bending space is formed between the spine and the heat sinking plate. The heat spreader may be attached to a printed circuit board (PCB) with, e.g., a one-touch method, so that assembling processes of the memory module may be automated.
    Type: Application
    Filed: July 6, 2006
    Publication date: January 11, 2007
    Inventors: Chang-Yong Park, Hyun-Jong Oh, Yong-Hyun Kim, Dong-Woo Shin, Kyung-Du Kim, Dong-Chun Lee, Kwang-Ho Chun
  • Publication number: 20060228878
    Abstract: A lower-melting-point solder having a lower melting point than solder balls is used to bond the solder balls with a module substrate. The lower-melting-point solder has a melting point lower than the solder balls. A bonding temperature is at a temperature between the melting point of the lower-melting-point solder and the melting point of the solder balls.
    Type: Application
    Filed: March 24, 2006
    Publication date: October 12, 2006
    Inventors: Chang-Yong Park, Kyung-Du Kim, Kwang-Ho Chun, Byung-Man Kim, Yong-Hyun Kim, Hyun-Jong Oh
  • Patent number: 7063601
    Abstract: An internal magnetic-force polishing system is disclosed for finishing a interior metal surface of a material. The system comprises a magnetic electrolysis-polishing which is adapted for finishing the interior metal surface of the material. A cathode terminal is provided for contacting pre-finished material and a transfer unit is also provided for transferring material from the cathode terminal to the magnetic electrolysis-polishing unit. The system has an electrolyte feeding unit which stores electrolytes and supplies the electrolyte to the magnetic electrolysis-polishing unit. A control unit is provided for controlling the transfer unit, the magnetic electrolysis-polishing unit and the electrolyte feeding unit.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: June 20, 2006
    Assignees: Sejong University Industry-Academy Cooperation Foundation
    Inventor: Jeong-Du Kim
  • Publication number: 20060004024
    Abstract: Risperidone is prepared in a high yield by reacting 2,4-difluorophenyl(4-piperidinyl)methanone oxime hydrochloride and 3-(2-chloroethyl)-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one in an aqueous alkali hydroxide solution having an alkali hydroxide concentration in the range of 20 to 40%.
    Type: Application
    Filed: October 17, 2003
    Publication date: January 5, 2006
    Inventors: Nam-Du Kim, Jae-Heon Lee, Moon-Sub Lee, Young-Kil Chang, Gwan-Sun Lee
  • Patent number: 6936625
    Abstract: Amlodipine camsylate of the present invention is a crystalline salt of amlodipine suitable for pharmaceutical formulation, which is prepared by using low toxic camphor sulfonic acid to meet required pharmaceutical properties for treating cardiovascular diseases.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: August 30, 2005
    Assignee: Hanmi Pharm. Co., Ltd.
    Inventors: Young-Ho Moon, Nam-Du Kim, Kyung-Ik Lee, Gwan-Sun Lee, Jong-Soo Woo
  • Patent number: 6888591
    Abstract: An LCD assembly used with a wireless information terminal including: an LCD module including an LCD and a TSP attached on a surface of the LCD; a housing having upper and lower housing members which butt against each other to be coupled in order to support the LCD module, an exposure window of a certain size being formed in the upper housing member; and a space maintaining member inserted to maintain a certain gap between a rim of the TSP of the LCD module and the upper housing member, and formed of a rubber material having excellent elasticity and impact-absorbing capacity. The space maintaining member has a fixture portion and a pad portion in close contact with the TSP, and the pad portion has an air groove allowing air to exist between the TSP and itself.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: May 3, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chong-du Kim
  • Publication number: 20050013598
    Abstract: The present invention relates to a method and device of inserting a coated electric heating wire (6) into a hot water tube (2) and to an apparatus for a sealing plug mounted at an end (1a) of said hot water tube (2). An end of a hot water tube (2), normally laid out in a zig-zag form under the floor of a room to be heated, is pipe-fitted to an outlet tube (3a) of a pump (3c) through a guide tube (2A). Said coated electric heating wire (6) is inserted through a guide hole (2h) with a 20˜30 degree slant to the guide tube (2A) and is connected to a ball-type guide member (5).
    Type: Application
    Filed: June 14, 2004
    Publication date: January 20, 2005
    Inventor: Du Kim
  • Patent number: 6809188
    Abstract: Clarithromycin can be easily prepared by reacting erythromycin A N-oxide with a methylating agent to obtain 6-O-methylerythromycin A N-oxide; and treating 6-O-methylerythromycin A N-oxide obtained above with a reducing agent in a high yield.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: October 26, 2004
    Assignee: Hanmi Pahrm. Co., Ltd.
    Inventors: Kwee-Hyun Suh, Mi-Ra Seong, Nam-Du Kim, Gwan-Sun Lee
  • Publication number: 20040116478
    Abstract: Amlodipine camsylate of the present invention is a crystalline salt of amlodipine suitable for pharmaceutical formulation, which is prepared by using low toxic camphor sulfonic acid to meet required pharmaceutical properties for treating cadiovacular diseases.
    Type: Application
    Filed: September 26, 2003
    Publication date: June 17, 2004
    Inventors: Young-Ho Moon, Nam-Du Kim, Kyung-Ik Lee, Gwan-Sun Lee, Jong-Soo Woo
  • Publication number: 20040004680
    Abstract: An LCD assembly used with a wireless information terminal including: an LCD module including an LCD and a TSP attached on a surface of the LCD; a housing having upper and lower housing members which butt against each other to be coupled in order to support the LCD module, an exposure window of a certain size being formed in the upper housing member; and a space maintaining member inserted to maintain a certain gap between a rim of the TSP of the LCD module and the upper housing member, and formed of a rubber material having excellent elasticity and impact-absorbing capacity. The space maintaining member has a fixture portion and a pad portion in close contact with the TSP, and the pad portion has an air groove allowing air to exist between the TSP and itself.
    Type: Application
    Filed: April 15, 2003
    Publication date: January 8, 2004
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Chong-Du Kim
  • Patent number: 6651306
    Abstract: A truss manufacturing apparatus and method. The apparatus includes a conveyor for moving upper and lower chords thru a series of assembly stations of the apparatus. A board is inserted between the chords at one station and secured in place forming a trimmable end of a truss. One or more web boards can be inserted between the chords at a second station and secured in place by connector nail plates forming a opening in the truss for ductwork or the like. Metal web members are secured to opposite side edges of the truss at a third station to form a web between the chords. The chords are positioned in a generally vertical plane with one above the other in the apparatus and the board, web boards and web members are moved into position from one or both sides of the chords.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: November 25, 2003
    Assignee: MiTek Holdings, Inc.
    Inventors: Robert A. LePoire, Douglas S. Hanneken, Randall S. Mabery, Louis A. Fanty, Jr., Du Kim
  • Patent number: 6528628
    Abstract: A new erythromycin A 9-oxime compound which can be effectively used as intermediates for the preparation of erythromycin A oxime compound, a process for preparing the same and a process for preparing 6-O-alkyl erythromycin A or its oxime using the same is described.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: March 4, 2003
    Assignee: Hanmi Pharmaceutical Co., Ltd.
    Inventors: Kwee-Hyun Suh, Nam-Du Kim, Hyoung-Jun Pae, Gwan-Sun Lee
  • Patent number: 6515116
    Abstract: High purity Form II crystals of clarithromycin can be easily prepared in a high yield by a process comprising the steps of: protecting the 9-oxime hydroxy group of erythromycin A 9-oxime or a salt thereof with a tropyl group and the 2′- and 4″-hydroxy groups with trimethylsilyl groups; reacting 2′,4″-O-bis(trimethylsilyl)erythromycin A 9-O-tropyloxime with a methylating agent; removing the protecting groups and the oxime group of 2′,4″-O-bis(trimethylsilyl)-6-O-methylerythromycin A 9-O-tropyloxime to obtain crude clarithromycin; treating the crude clarithromycin with methanesulfonic acid in a mixture of a water-miscible organic solvent and water to obtain crystalline clarithromycin mesylate trihydrate; and neutralizing the crystalline clarithromycin mesylate trihydrate with aqueous ammonia in a mixture of a water-miscible organic solvent and water.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: February 4, 2003
    Assignee: Hanmi Pharm. Co.,
    Inventors: Kwee-Hyun Suh, Sang-Min Yun, Mi-Ra Seong, Gi-Jeong Kim, Gwan-Sun Lee, Nam-Du Kim
  • Patent number: 6492523
    Abstract: Amlodipine is prepared in a high yield by subjecting a pyrrole derivative, methyl aminocrotonate and 2-chlorobenzaldehyde to a Hantzsch reaction, and converting the pyrrole residue of the resulting 1,4-dihydropyridine derivative to an amine group by the action of hydroxylamine hydrochloride.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: December 10, 2002
    Assignee: Hanmi Pharm. Co., Ltd.
    Inventors: Young-Ho Moon, Nam-Du Kim, Kyung-Ik Lee, Kwan-Sun Lee
  • Publication number: 20020132834
    Abstract: Amlodipine is prepared in a high yield by subjecting a pyrrole derivative, methyl aminocrotonate and 2-chlorobenzaldehyde to a Hantzsch reaction, and converting the pyrrole residue of the resulting 1,4-dihydropyridine derivative to an amine group by the action of hydroxylamine hydrochloride.
    Type: Application
    Filed: March 11, 2002
    Publication date: September 19, 2002
    Inventors: Young-Ho Moon, Nam-Du Kim, Kyung-Ik Lee, Kwan-Sun Lee