Patents by Inventor Min-Hee Lee

Min-Hee 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: 20130066015
    Abstract: Disclosed is a polylactic acid composition with improved heat-resistance and improved impact-resistance. Specifically, in the disclosed polylactic acid composition, both impact strength and heat-resistance are improved by mixing 30 to 80 wt % of polyketone and 10 to 40 wt % of modified rubber. The disclosed polylactic acid composition does not only exhibit excellent in heat resistance, chemical resistance, fuel permeation resistance, abrasion resistance, etc., but also has improved impact-resistance and improved heat resistance. Thus, it is possible to employ polylactic acid as a bioplastic in interior/exterior parts of a vehicle.
    Type: Application
    Filed: November 14, 2011
    Publication date: March 14, 2013
    Applicants: HYUNDAI MOTOR COMPANY, DESCO CO., LTD., HYOSUNG CORPORATION
    Inventors: Choon Soo Lee, Min Hee Lee, Bong Hyun Park, Jong Hwal Kim, Sung Kyoun Yoon, Byoung Gook Kang, Keun Kyu Lee, Jong Lee
  • Patent number: 8378023
    Abstract: The present invention provides a polyketone composition having about 40˜90 wt % of polyketone, about 5˜40 wt % of polyamide, and about 5˜20 wt % of modified rubber. The composition of the present invention greatly improves the impact resistance of polyketone, which has increased heat resistance, chemical resistance, fuel permeation resistance, abrasion resistance or the like, and thus may be widely applied in various industrial fields, such as automotive parts including wheel covers, wheel caps, fuel filler necks, fuel tanks, fuel tubes, center fascias, door handles, roof rack covers, gear, junction boxes, connectors, seat backs or the like, electric/electronic parts, and household items, thereby providing durability of the parts and price competition.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: February 19, 2013
    Assignees: Hyundai Motor Company, Desco Co., Ltd., Hyosung Corporation
    Inventors: Choon Soo Lee, Min Hee Lee, Bong Hyun Park, Seong Hoon Lee, Jong Hwal Kim, Sung Kyoun Yoon, Byoung Gook Kang
  • Patent number: 8344083
    Abstract: The present invention relates to a transparent resin composition which comprises (a) a (meth)acrylate based unit comprising one or more (meth)acrylate based derivatives; (b) an aromatic based unit having a chain having the hydroxy group containing portion and an aromatic moiety and (c) a styrene-based unit comprising one or more styrene-based derivatives, and an optical film that is formed by using the same.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: January 1, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Jun-Geun Um, Min-Hee Lee, Nam-Jeong Lee, Jong-Hun Lee, Dong-Ryul Kim, Sae-Han Cho
  • Patent number: 8299144
    Abstract: Disclosed is a thermoplastic polyolefin (TPO) nanocomposite composition, more particularly a TPO nanocomposite composition including a polypropylene resin, a polyethylene resin, a rubber resin, a nanoclay master batch and a glass bubble master batch. Since the disclosed TPO nanocomposite composition has low specific gravity and superior gloss reducing effect and scratch resistance, it may be usefully applied to light automobile parts, uncoated automobile exterior parts, or the like.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: October 30, 2012
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Honam Petrochemical Corporation
    Inventors: Choon Soo Lee, Min Hee Lee, Sungrok Ko, Byungkook Nam, Se Hoon Kim
  • Publication number: 20120271001
    Abstract: The present invention provides a polyketone composition having about 40˜90 wt % of polyketone, about 5˜40 wt % of polyamide, and about 5˜20 wt % of modified rubber. The composition of the present invention greatly improves the impact resistance of polyketone, which has increased heat resistance, chemical resistance, fuel permeation resistance, abrasion resistance or the like, and thus may be widely applied in various industrial fields, such as automotive parts including wheel covers, wheel caps, fuel filler necks, fuel tanks, fuel tubes, center fascias, door handles, roof rack covers, gear, junction boxes, connectors, seat backs or the like, electric/electronic parts, and household items, thereby providing durability of the parts and price competition.
    Type: Application
    Filed: June 30, 2011
    Publication date: October 25, 2012
    Applicants: Hyundai Motor Company, Hyosung Corporation, Desco Co., Ltd.
    Inventors: Choon Soo Lee, Min Hee Lee, Bong Hyun Park, Seong Hoon Lee, Jong Hwal Kim, Sung Kyoun Yoon, Byoung Gook Kang
  • Publication number: 20120244432
    Abstract: Provided are a mixed cathode active material including layered structure lithium manganese oxide expressed as Chemical Formula 1 and a second cathode active material having a plateau voltage profile in a range of 2.5 V to 3.3 V, and a lithium secondary battery including the mixed cathode active material. The mixed cathode active material and the lithium secondary battery including the same may have improved safety and simultaneously, may be used in an operating device requiring the foregoing battery by widening a state of charge (SOC) range able to maintain power more than a required value by allowing the second cathode active material to complement low power in a low SOC range.
    Type: Application
    Filed: May 9, 2012
    Publication date: September 27, 2012
    Inventors: Jung Hwan Park, Song Taek Oh, Geun Chang Chung, Min Hee Lee, Juichi Arai
  • Patent number: 8252849
    Abstract: Disclosed is a coating agent for poly(methyl methacrylate) (PMMA) panel nano imprinting, more particularly, a coating agent for PMMA panel nano imprinting comprising a UV curable resin, a photoinitiator, an additive for surface modification and a weather-resistant stabilizer.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: August 28, 2012
    Assignee: Hyundai Motor Company
    Inventors: Choon Soo Lee, Min Hee Lee
  • Patent number: 8243239
    Abstract: The present invention relates to an in-plane switching (IPS) mode liquid crystal display. More particularly, the IPS mode liquid crystal display according to the present invention comprises 1) a first polarizing plate; 2) a liquid crystal cell; 3) a retardation film comprising a positive biaxial acryl-based film and a negative C plate; and 4) a second polarizing plate. Accordingly, a contrast property can be improved at a front side of the IPS mode liquid crystal display and at an inclining angle.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: August 14, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Jeong-Min Choi, Min-Hee Lee, Sae-Han Cho
  • Patent number: 8120729
    Abstract: Disclosed is an optical film that is manufactured by using longitudinal and uniaxial stretching of an unstretched cycloolefin copolymer film and has an in-plane retardation of 100 to 150 nm and a thickness retardation of 0 to ?30 nm at a wavelength of 550 nm, a polarizing plate and a liquid crystal display including the same, and a method of manufacturing the optical film. The method includes longitudinally and uniaxially stretching the unstretched film while a ratio of a width to a length of a stretched portion of the film is controlled.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: February 21, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Jeong-Min Choi, Kyung-Sik Kim, Min-Hee Lee, Jun-Geun Um, Sang-Min Kwak
  • Publication number: 20120010340
    Abstract: The present invention provides a polypropylene resin composition prepared by adding a black coloring agent and metal oxide nanoparticles to polypropylene or a mixture of polypropylene and rubber to have a black high gloss finish. The polypropylene resin composition prepared according to the present invention can be used as a substitute for expensive engineering plastics, which have been used for vehicle interior and exterior components with a black high gloss finish, and thus can contribute to a reduction in manufacturing cost and weight and environmentally friendly characteristics.
    Type: Application
    Filed: October 27, 2010
    Publication date: January 12, 2012
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Choon Soo Lee, Min Hee Lee
  • Patent number: D656956
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: April 3, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Hee Lee, Yeon-Moo Chung
  • Patent number: D656958
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: April 3, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Hee Lee, Yeon-Moo Chung
  • Patent number: D656959
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: April 3, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Hee Lee, Yeon-Moo Chung, Seok-Won Hong
  • Patent number: D657774
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: April 17, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeon-Moo Chung, Min-Hee Lee, Seok-Won Hong, Gyoo-Sang Choi
  • Patent number: D660285
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: May 22, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Hee Lee, Yeon-Moo Chung
  • Patent number: D660286
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: May 22, 2012
    Assignee: Samsung Electronics, Ltd.
    Inventors: Min-Hee Lee, Yeon-Moo Chung
  • Patent number: D671526
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: November 27, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Hee Lee, Yeon-Moo Chung, Sang-Young Lee
  • Patent number: D671527
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: November 27, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Hee Lee, Yeon-Moo Chung
  • Patent number: D682269
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: May 14, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Hee Lee, Koung-Won Park, Tae-Yeon Won, Yun-Je Kang
  • Patent number: D682797
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: May 21, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Hee Lee, Koung-Won Park, Tae-Yeon Won, Yun-Je Kang, Kyoung-Hoon Kim