Patents by Inventor Dae Sung Lee

Dae Sung 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).

  • Publication number: 20090199583
    Abstract: Disclosed is an indoor unit of an air conditioner, in which discharge units respectively provided on upper and lower portions of the indoor unit have an improved discharge structure such that the discharge units are interchangeable, to increase cooling efficiency regardless of installation position of the indoor unit. The indoor unit includes a cabinet; a first discharge unit being detachably provided on the cabinet and configured to discharge air in a forward direction; and a second discharge unit separated from the first discharge unit, being detachably provided on the cabinet and configured to discharge air in the oblique direction, the first discharge unit and the second discharge unit being interchangeable according to a height of a position at which the cabinet is installed. The indoor unit of the air conditioner sets the optimum direction of discharged air, thus increasing the cooling efficiency of an indoor space.
    Type: Application
    Filed: September 19, 2008
    Publication date: August 13, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jong Ki Jeon, Jai Kwon Lee, Do Yeon Kim, Dae Sung Lee, Jei Min Choi, Jong Won Lee, Kang Min Lee
  • Publication number: 20090134101
    Abstract: A filter comprising a filter element with a filtering medium, mounted in a housing having a first end and a second end, and a passageway A removable generator to provide heated fluid for regenerating the filter element is to be connected to the housing adjacent the second end The second end of the filter element is constructed so as to permit a first portion of the heated fluid to flow toward the first end of the filter element, and the passageway is to allow a second portion of the heated fluid to flow from the second end to the first end, bypassing the filtering medium A flow director is positioned adjacent to the first end of the filter element for directing the second portion of the heated fluid discharged from the passageway toward the first end of the filter element.
    Type: Application
    Filed: May 2, 2008
    Publication date: May 28, 2009
    Inventor: Dae Sung Lee
  • Patent number: 7524890
    Abstract: The present invention is directed to a photocurable and antistatic resin composition for coating an optical fiber, comprising (A) a photopolymerizable urethane acrylate oligomer, (B) a reactive monomer having at least one (meth)acrylate or vinyl group, (C) a photoinitiator, and (D) an antistatic agent compatible with the oligomer and monomer components, and optionally (E) a pigment or dye. The coating of the inventive composition can increase the productivity of the optical fiber, and provide an optical fiber having a uniform coating layer.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: April 28, 2009
    Assignee: Luvantix Co., Ltd
    Inventors: Dae Sung Lee, Kyoung Beom Min, Jae Myoung Ryu, Hae Woog Choi, Yong Min Kim
  • Publication number: 20080161443
    Abstract: The present invention is directed to a photocurable and antistatic resin composition for coating an optical fiber, comprising (A) a photopolymerizable urethane acrylate oligomer, (B) a reactive monomer having at least one (meth)acrylate or vinyl group, (C) a photoinitiator, and (D) an antistatic agent compatible with the oligomer and monomer components, and optionally (E) a pigment or dye. The coating of the inventive composition can increase the productivity of the optical fiber, and provide an optical fiber having a uniform coating layer.
    Type: Application
    Filed: August 13, 2004
    Publication date: July 3, 2008
    Inventors: Dae Sung Lee, Kyoung Beom Min, Jae Myoung Ryu, Hae Woog Choi, Yong Min Kim
  • Publication number: 20080154092
    Abstract: The present invention relates to a capsule type endoscope with embedded memory. More specifically, the present invention relates to a capsule type endoscope with embedded memory, which is equipped with flash memory and does not need a transmitter for wireless communication or a receiver, to reduce power consumption of the capsule type endoscope and improve convenience in use.
    Type: Application
    Filed: December 26, 2007
    Publication date: June 26, 2008
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Dae Sung Lee, Nam Kyu Cho, Kyu Sik Shin, Hak In Hwang
  • Publication number: 20080154093
    Abstract: Disclosed is a capsule type endoscope with an insertion tube, which is capable of improving diagnosis and treatment of a patient's disease by attaching manipulation wires, an electric power line, and a signal line to a conventional capsule type endoscope. A specific embodiment of the present invention comprises and is characterized by a capsule containing a photographic system for acquiring images from the internal cavities of the human body; at least one manipulation wire connected to the capsule; an electric power line and a signal line connected to the capsule; an insertion tube for protecting the manipulation wire, the electric power line and the signal line; and a connection section for connecting the capsule with the insertion tube.
    Type: Application
    Filed: November 16, 2007
    Publication date: June 26, 2008
    Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Nam Kyu Cho, Dae Sung Lee, Kyu Sik Shin, Don Haeng Lee
  • Publication number: 20080118357
    Abstract: A turbofan integrally formed with a shroud and a method of manufacturing the same. The turbofan includes a rotating plate rotated by a driving motor, a plurality of blades having first ends connected to an outer peripheral portion of a front surface of the rotating plate while being arranged in a radial pattern, a shroud having an annular shape and being integrally formed with second ends of the blades, in which the shroud has an inner diameter equal to or larger than a diameter of the rotating plate, and an auxiliary rotating plate having a diameter larger than the diameter of the rotating plate and being fixed to the rotating plate. Since the inner diameter of the shroud is equal to or larger than the rotating plate, the turbofan is integrally formed with the shroud by a mold.
    Type: Application
    Filed: July 25, 2007
    Publication date: May 22, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jong Ki JEON, Sung Kwan Park, Yong Ho Lee, Dae Sung Lee, Jei Min Choi
  • Publication number: 20070295473
    Abstract: The present invention provides a robust control method for maintaining a melt level at a constant value in a mold in a twin roll strip casting process. In the twin roll strip casting process, whether using a stopper system (3), which is provided in a tundish (2) to supply melt into the mold, or using a camera system, which measures the melt level in the mold, the robust control method of the present invention controls the melt level both using an advanced controller, which controls, at an initial stage of the casting process or when a disturbance arises, the target value of the melt level such that the target level corresponds to the performance characteristics of the melt level control system, and using a feedback controller, which maintains the melt level at a constant value under normal casting conditions.
    Type: Application
    Filed: December 26, 2005
    Publication date: December 27, 2007
    Inventors: Dae-Sung Lee, Hee-Kyung Moon, Yoon-Ha Kim
  • Patent number: 7120342
    Abstract: A UV-curable and foamable resin composition comprising a photopolymerizable urethane acrylate oligomer, a photopolymerable monomer, a photo polymerization initiator, a photolytic foaming agent selected from an azo compound, a combination of sulonium salt and an inorganic carbonate, and a mixture thereof, and a photolysis catalyst is useful for coating a fiber or ribbon bundle to be applied to an air blown fiber system.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: October 10, 2006
    Assignee: Luvantix Co., Ltd.
    Inventors: Se Lee Chang, Hwa Joong Kim, Hae Woog Choi, Jung Hyun Oh, Dae Sung Lee
  • Patent number: 7100674
    Abstract: Disclosed herein is a method for drawing a strip initially cast by means of a twin roll strip casting apparatus. The method comprises a roll gap maintenance step where roll gap is maintained, a casting initiation step where a stopper is disengaged from a tundish hole so that molten metal is poured into a space between the rolls, and the rolls are rotated at speed v0 of each of the rolls if the position of the stopper is higher than the actually poured position of the molten metal, a casting speed acceleration step where a roll repulsive force is detected when the molten metal is solidified to the leader strip and passes between the rolls, and the casting speed is accelerated if the roll repulsive force reaches a load threshold, and a normal control step where the casting speed is detected, and if the casting speed reaches a target value.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: September 5, 2006
    Assignee: Posco Co., Ltd.
    Inventors: Yoon-Ha Kim, Wan-Soo Kim, Dae-Sung Lee
  • Publication number: 20060118982
    Abstract: Provided is a molding apparatus for molding simultaneously a plurality of semiconductor devices. The molding apparatus includes a mold, a plurality of plungers, and a plunger block. The mold is prepared to mold a plurality of semiconductor devices. The plurality of plungers are plunged into the mold to inject a molding compound that will encapsulate the semiconductor devices in the mold. The plurality of plungers are assembled with the plunge block to operate at the same time. Each of the plurality of plungers includes a load sensor and/or a contact sensor, so as to sense separately whether the plungers are improperly operating.
    Type: Application
    Filed: January 27, 2006
    Publication date: June 8, 2006
    Inventors: Sung-soo Lee, Dae-sung Lee, Kyung-soo Park
  • Patent number: 7058270
    Abstract: The present invention relates to a method for preparing a GI (graded index) plastic optical fiber preform having a radial refractive index gradient, the refractive index increasing gradually from the outer periphery of the preform toward the center thereof, comprising inserting a 1st plastic tube (inside diameter: d1i, outside diameter: d1o) (111) made of a first polymer (refractive index: n1) in a cylinder reactor (inside diameter: d0i, d1o?d0i) and inserting a 2nd plastic tube (inside diameter: d2i, outside diameter d2o, d2o?d1i) (112) made of a second polymer (refractive index: n2, n2?n1) in the 1st plastic tube, the reactor, the 1st and 2nd plastic tubes are positioned coaxially, injecting a precursor of a third polymer (refractive index: n?, n??n2) into the 2nd plastic tube, injecting a precursor of a fourth polymer (refractive index: n?, n1?n??n2) into the space between the 1st and 2nd plastic tubes.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: June 6, 2006
    Assignee: SSCP Co., Ltd.
    Inventors: Hwa Joong Kim, Hae Woog Choi, Se Lee Chang, Dae Sung Lee, Jung Hyun Oh, Eu Gene Kim
  • Patent number: 7029257
    Abstract: Provided is a molding apparatus for molding simultaneously a plurality of semiconductor devices. The molding apparatus includes a mold, a plurality of plungers, and a plunger block. The mold is prepared to mold a plurality of semiconductor devices. The plurality of plungers are plunged into the mold to inject a molding compound that will encapsulate the semiconductor devices in the mold. The plurality of plungers are assembled with the plunge block to operate at the same time. Each of the plurality of plungers includes a load sensor and/or a contact sensor, so as to sense separately whether the plungers are improperly operating.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: April 18, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-soo Lee, Dae-sung Lee, Kyung-soo Park
  • Publication number: 20060037732
    Abstract: Disclosed herein is a method for drawing a strip initially cast by means of a twin roll strip casting apparatus. The method comprises a roll gap maintenance step where roll gap is maintained, a casting initiation step where a stopper is disengaged from a tundish hole so that molten metal is poured into a space between the rolls, and the rolls are rotated at speed v0 of each of the rolls if the position of the stopper is higher than the actually poured position of the molten metal, a casting speed acceleration step where a roll repulsive force is detected when the molten metal is solidified to the leader strip and passes between the rolls, and the casting speed is accelerated if the roll repulsive force reaches a load threshold, and a normal control step where the casting speed is detected, and if the casting speed reaches a target value.
    Type: Application
    Filed: November 12, 2003
    Publication date: February 23, 2006
    Inventors: Yoon-Ha Kim, Wan-Soo Kim, Dae-Sung Lee
  • Patent number: D568910
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: May 13, 2008
    Assignee: LG Electronics Inc.
    Inventors: Woon Kyu Seo, Dae Sung Lee
  • Patent number: D569398
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: May 20, 2008
    Assignee: LG Electronics Inc.
    Inventors: Woon Kyu Seo, Dae Sung Lee
  • Patent number: D593583
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: June 2, 2009
    Assignee: LG Electronics Inc.
    Inventors: Kyu Kwan Choi, Dae Sung Lee, Kyu Tae Park
  • Patent number: D597560
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: August 4, 2009
    Assignee: LG Electronics Inc.
    Inventors: Kyu Kwan Choi, Dae Sung Lee, Kyu Tae Park
  • Patent number: D597563
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: August 4, 2009
    Assignee: LG Electronics Inc.
    Inventors: Kyu Kwan Choi, Dae Sung Lee, Kyu Tae Park
  • Patent number: D597564
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: August 4, 2009
    Assignee: LG Electronics Inc.
    Inventors: Kyu Kwan Choi, Gwan Woo Park, Dae Sung Lee