Patents by Inventor Kyung-wook Lee

Kyung-wook 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: 20210102381
    Abstract: The present disclosure relates to interior material attachment structure with wall attachment part bolt grooves, including: binding protrusions formed at the outermost part of the interior material attachment structure in order to attach the metal interior material; and connection part grooves formed adjacent to the binding protrusions in order to connect the plurality of interior material attachment structures to each other.
    Type: Application
    Filed: February 21, 2019
    Publication date: April 8, 2021
    Inventors: Kyung Wook Lee, Kyung Yul Lee, Hong Suk Han
  • Publication number: 20190029124
    Abstract: The present invention relates to a circuit board including: a base board having a circuit region and a terminal region; a circuit pattern formed on an upper portion of the base board; and a low-melting-metal layer formed on an upper portion of the circuit pattern. A circuit board capable of reducing manufacturing time and manufacturing costs may be manufactured by omitting a photoresist process.
    Type: Application
    Filed: January 9, 2017
    Publication date: January 24, 2019
    Applicants: Samwon Act Co., Ltd, Emot Co., Ltd., Korea Institute of Machinery & Materials
    Inventors: Kyung Yul LEE, Kyung Wook LEE, Jun Sang JEONG, Yang Seok LEE, Man KIM, Joo Yul LEE, Sang Yeoul LEE
  • Patent number: 9845543
    Abstract: According to an embodiment of the present invention, a method for producing a duplicate of a nano-pattern texture of a surface of an object through electroforming using an imprint mold comprises selecting the object having the nano-pattern texture, disposing the selected object and pretreating a surface of the object by washing, drying and then forming a nano-thin film thereto to block transfer of impurities, metallizing a surface of the plastic mold through, e.g., vapor deposition, spraying, and wet silver mirror reaction, and performing a first electroforming of the surface of the plastic mold, and repeating to thus manufacture a plurality of metal module master molds.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: December 19, 2017
    Inventors: Kyung Wook Lee, Kyung Yul Lee, Jun Sang Jeong
  • Patent number: 9052425
    Abstract: A silicon solar cell is provided, including a first silicon layer that absorbing sunlight, a first layer of a structure of photonic crystals formed on the first silicon layer, and a second silicon layer formed on the first layer of a structure of photonic crystals and absorbing sunlight, wherein the first silicon layer and the second silicon layer absorb sunlight at different wavelengths and the first layer of structure of photonic crystals selectively reflects light of a wavelength absorbed by the second silicon layer.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: June 9, 2015
    Assignee: SAMWON FA CO., LTD.
    Inventors: Kyung-Wook Lee, Kyung-Yul Lee, Bong-Yul Lee, Wayne H. Choe
  • Publication number: 20150108000
    Abstract: A method of duplicating the nano-pattern of the surface of an object is disclosed A method of duplicating the nano-pattern of the surface of an object comprises: selecting the object having the nano-pattern texture to be duplicated; disposing the selected object and pretreating a surface of the object by washing, drying and then forming a nano-thin film thereto to block transfer of impurities so as to facilitate separation of a nano-imprint mold; nano-imprinting the surface of the object, thus duplicating it on a plastic mold; metallizing a surface of the plastic mold and performing first electroforming of the plastic mold, thus manufacturing metal module master molds; preparing a standard pattern by scanning the surface of the object to achieve an two-dimensional image and three-dimensional depth information and determine a part of a scanned image of the surface of the object as the standard pattern; connecting the metal module master molds to each other through welding thus producing a large-area metal m
    Type: Application
    Filed: December 24, 2014
    Publication date: April 23, 2015
    Inventors: Kyung Wook LEE, Kyung Yul LEE, Jun Sang JEONG
  • Publication number: 20130192994
    Abstract: Disclosed is a method of duplicating a nano-pattern texture of the surface of an object through electroforming using an imprint mold, including selecting the object having the surface texture to be duplicated; disposing the selected object and pre-treating the surface thereof; nano-imprinting the surface of the pretreated object, thus duplicating it on a plastic mold; metallizing the surface of the plastic mold through vapor deposition, and performing electroforming, thus manufacturing metal module master molds; trimming the edges of the metal module master molds, performing micro-processing, connecting the metal module master molds, and then performing electroforming, thus manufacturing a large-area metal unit master mold; and electroforming the metal unit master mold, thus producing a duplicate having the surface texture, thus exhibiting an effect in which the skin of a selected natural object can be duplicated on metal having a uniform thickness.
    Type: Application
    Filed: December 22, 2009
    Publication date: August 1, 2013
    Applicant: EMOT CO., LTD.
    Inventors: Kyung Wook Lee, Kyung Yul Lee, Jun Sang Jeong
  • Patent number: 8422848
    Abstract: Provided are a structure color of photonic crystals in which a new structure of a structure color of photonic crystals is provided so that a nanoimprint process can be performed and mass productivity is improved, a method of manufacturing thereof, and a manufacturing apparatus thereof. The method of manufacturing a structure color of photonic crystals includes: forming a plurality of basic element layers by using nanoimprinting, the plurality of basic element layers comprising a plurality of basic unit bodies each having a symmetrical cross-section and thin film connecting portions connecting the basic unit bodies! sequentially stacking the basic element layers! removing the thin film connecting portions by using etching; and determining whether the structure color of photonic crystals is completed, wherein, when it is determined that the structure color of photonic crystals is not completed, the forming, the stacking, and the removing are repeatedly performed.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: April 16, 2013
    Assignee: Emot Co., Ltd
    Inventors: Kyung Wook Lee, Kyung Yul Lee, Bong Yul Lee, Wayne H. Choe
  • Publication number: 20120118373
    Abstract: A silicon solar cell is provided, including a first silicon layer that absorbing sunlight, a first layer of a structure of photonic crystals formed on the first silicon layer, and a second silicon layer formed on the first layer of a structure of photonic crystals and absorbing sunlight, wherein the first silicon layer and the second silicon layer absorb sunlight at different wavelengths and the first layer of structure of photonic crystals selectively reflects light of a wavelength absorbed by the second silicon layer.
    Type: Application
    Filed: November 28, 2011
    Publication date: May 17, 2012
    Applicant: EMOT Co., LTD.
    Inventors: Kyung-Wook LEE, Kyung-Yul Lee, Bong-Yul Lee, Wayne H. Choe
  • Publication number: 20110318533
    Abstract: Provided is a method of duplicating a nano-pattern texture of the surface of an object through electroforming using an imprint mold, including selecting the object having the surface texture to be duplicated; disposing the selected object and pre-treating the surface thereof; nano-imprinting the surface of the pretreated object, thus duplicating it on a plastic mold; metalizing the surface of the plastic mold through vapor deposition, and performing electroforming, thus manufacturing metal module master molds; trimming the edges of the metal module master molds, performing micro-processing, connecting the metal module master molds, and then performing electroforming, thus manufacturing a large-area metal unit master mold; and electroforming the metal unit master mold, thus producing a duplicate having the surface texture, thus exhibiting an effect in which the skin of a selected natural object can be duplicated on metal having a uniform thickness.
    Type: Application
    Filed: September 7, 2011
    Publication date: December 29, 2011
    Applicant: EMOT CO., LTD.
    Inventors: Kyung Wook LEE, Kyung Yul LEE, Jun Sang JEONG, Soo Han KIM
  • Publication number: 20100296787
    Abstract: Provided are a structure colour of photonic crystals in which a new structure of a structure colour of photonic crystals is provided so that a nanoimprint process can be performed and mass productivity is improved, a method of manufacturing thereof, and a manufacturing apparatus thereof. The method of manufacturing a structure colour of photonic crystals includes: forming a plurality of basic element layers by using nanoimprinting, the plurality of basic element layers comprising a plurality of basic unit bodies each having a symmetrical cross-section and thin film connecting portions connecting the basic unit bodies! sequentially stacking the basic element layers! removing the thin film connecting portions by using etching; and determining whether the structure colour of photonic crystals is completed, wherein, when it is determined that the structure colour of photonic crystals is not completed, the forming, the stacking, and the removing are repeatedly performed.
    Type: Application
    Filed: July 9, 2008
    Publication date: November 25, 2010
    Inventors: Kyung Wook Lee, Kyung Yul Lee, Bong Yul Lee, Wayne H. Choe
  • Publication number: 20100101961
    Abstract: Disclosed is a method of duplicating a nano-pattern texture of the surface of an object through electroforming using an imprint mold, including selecting the object having the surface texture to be duplicated; disposing the selected object and pre-treating the surface thereof; nano-imprinting the surface of the pretreated object, thus duplicating it on a plastic mold; metallizing the surface of the plastic mold through vapor deposition, and performing electroforming, thus manufacturing metal module master molds; trimming the edges of the metal module master molds, performing micro-processing, connecting the metal module master molds, and then performing electroforming, thus manufacturing a large-area metal unit master mold; and electroforming the metal unit master mold, thus producing a duplicate having the surface texture, thus exhibiting an effect in which the skin of a selected natural object can be duplicated on metal having a uniform thickness.
    Type: Application
    Filed: December 22, 2009
    Publication date: April 29, 2010
    Applicant: EMOT CO., LTD.
    Inventors: Kyung Wook Lee, Kyung Yul Lee, Jun Sang Jeong
  • Patent number: 7642140
    Abstract: CMOS integrated circuit devices include an electrically insulating layer and an unstrained silicon active layer on the electrically insulating layer. An insulated gate electrode is also provided on a surface of the unstrained silicon active layer. A Si1-xGex layer is also disposed between the electrically insulating layer and the unstrained silicon active layer. The Si1-xGex layer forms a first junction with the unstrained silicon active layer and has a graded concentration of Ge therein that decreases monotonically in a first direction extending from a peak level towards the surface of the unstrained silicon active layer. The peak Ge concentration level is greater than x=0.15 and the concentration of Ge in the Si1-xGex layer varies from the peak level to a level less than about x=0.1 at the first junction. The concentration of Ge at the first junction may be abrupt. More preferably, the concentration of Ge in the Si1-xGex layer varies from the peak level where 0.2<x<0.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: January 5, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Geum-jong Bae, Tae-hee Choe, Sang-su Kim, Hwa-sung Rhee, Nae-in Lee, Kyung-wook Lee
  • Publication number: 20070117297
    Abstract: CMOS integrated circuit devices include an electrically insulating layer and an unstrained silicon active layer on the electrically insulating layer. An insulated gate electrode is also provided on a surface of the unstrained silicon active layer. A Si1-xGex layer is also disposed between the electrically insulating layer and the unstrained silicon active layer. The Si1-xGex layer forms a first junction with the unstrained silicon active layer and has a graded concentration of Ge therein that decreases monotonically in a first direction extending from a peak level towards the surface of the unstrained silicon active layer. The peak Ge concentration level is greater than x=0.15 and the concentration of Ge in the Si1-xGex layer varies from the peak level to a level less than about x=0.1 at the first junction. The concentration of Ge at the first junction may be abrupt. More preferably, the concentration of Ge in the Si1-xGex layer varies from the peak level where 0.2<x<0.
    Type: Application
    Filed: January 23, 2007
    Publication date: May 24, 2007
    Inventors: Geum-jong Bae, Tae-hee Choe, Sang-su Kim, Hwa-sung Rhee, Nae-in Lee, Kyung-wook Lee
  • Patent number: 7195987
    Abstract: CMOS integrated circuit devices include an electrically insulating layer and an unstrained silicon active layer on the electrically insulating layer. An insulated gate electrode is also provided on a surface of the unstrained silicon active layer. A Si1-xGex layer is also disposed between the electrically insulating layer and the unstrained silicon active layer. The Si1-xGex layer forms a first junction with the unstrained silicon active layer and has a graded concentration of Ge therein that decreases monotonically in a first direction extending from a peak level towards the surface of the unstrained silicon active layer. The peak Ge concentration level is greater than x=0.15 and the concentration of Ge in the Si1-xGex layer varies from the peak level to a level less than about x=0.1 at the first junction. The concentration of Ge at the first junction may be abrupt. More preferably, the concentration of Ge in the Si1-xGex layer varies from the peak level where 0.2<x<0.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: March 27, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Geum-jong Bae, Tae-hee Choe, Sang-su Kim, Hwa-sung Rhee, Nae-in Lee, Kyung-wook Lee
  • Publication number: 20050230676
    Abstract: CMOS integrated circuit devices include an electrically insulating layer and an unstrained silicon active layer on the electrically insulating layer. An insulated gate electrode is also provided on a surface of the unstrained silicon active layer. A Si1-xGex layer is also disposed between the electrically insulating layer and the unstrained silicon active layer. The Si1-xGex layer forms a first junction with the unstrained silicon active layer and has a graded concentration of Ge therein that decreases monotonically in a first direction extending from a peak level towards the surface of the unstrained silicon active layer. The peak Ge concentration level is greater than x=0.15 and the concentration of Ge in the Si1-xGex layer varies from the peak level to a level less than about x=0.1 at the first junction. The concentration of Ge at the first junction may be abrupt. More preferably, the concentration of Ge in the Si1-xGex layer varies from the peak level where 0.2<x<0.
    Type: Application
    Filed: June 1, 2005
    Publication date: October 20, 2005
    Inventors: Geum-jong Bae, Tae-hee Choe, Sang-su Kim, Hwa-sung Rhee, Nae-in Lee, Kyung-wook Lee
  • Patent number: 6914301
    Abstract: CMOS integrated circuit devices include an electrically insulating layer and an unstrained silicon active layer on the electrically insulating layer. An insulated gate electrode is also provided on a surface of the unstrained silicon active layer. A Si1-xGex layer is also disposed between the electrically insulating layer and the unstrained silicon active layer. The Si1-xGex layer forms a first junction with the unstrained silicon active layer and has a graded concentration of Ge therein that decreases monotonically in a first direction extending from a peak level towards the surface of the unstrained silicon active layer. The peak Ge concentration level is greater than x=0.15 and the concentration of Ge in the Si1-xGex layer varies from the peak level to a level less than about x=0.1 at the first junction. The concentration of Ge at the first junction may be abrupt. More preferably, the concentration of Ge in the Si1-xGex layer varies from the peak level where 0.2<x<0.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: July 5, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Geum-jong Bae, Tae-hee Choe, Sang-su Kim, Hwa-sung Rhee, Nae-in Lee, Kyung-wook Lee
  • Publication number: 20040075143
    Abstract: CMOS integrated circuit devices include an electrically insulating layer and an unstrained silicon active layer on the electrically insulating layer. An insulated gate electrode is also provided on a surface of the unstrained silicon active layer. A Si1-xGex layer is also disposed between the electrically insulating layer and the unstrained silicon active layer. The Si1-xGex layer forms a first junction with the unstrained silicon active layer and has a graded concentration of Ge therein that decreases monotonically in a first direction extending from a peak level towards the surface of the unstrained silicon active layer. The peak Ge concentration level is greater than x=0.15 and the concentration of Ge in the Si1-xGex layer varies from the peak level to a level less than about x=0.1 at the first junction. The concentration of Ge at the first junction may be abrupt. More preferably, the concentration of Ge in the Si1-xGex layer varies from the peak level where 0.2<x<0.
    Type: Application
    Filed: October 14, 2003
    Publication date: April 22, 2004
    Inventors: Geum-Jong Bae, Tae-Hee Choe, Sang-Su Kim, Hwa-Sung Rhee, Nae-In Lee, Kyung-Wook Lee
  • Patent number: 6633066
    Abstract: CMOS integrated circuit devices include an electrically insulating layer and an unstrained silicon active layer on the electrically insulating layer. An insulated gate electrode is also provided on a surface of the unstrained silicon active layer. A Si1−xGex layer is also disposed between the electrically insulating layer and the unstrained silicon active layer. The Si1−xGex layer forms a first junction with the unstrained silicon active layer and has a graded concentration of Ge therein that decreases monotonically in a first direction extending from a peak level towards the surface of the unstrained silicon active layer. The peal Ge concentration level is greater than x=0.15 and the concentration of Ge in the Si1−xGex layer varies from the peak level to a level less than about x=0.1 at the first junction. The concentration of Ge at the first junction may be abrupt. More preferably, the concentration of Ge in the Si1−xGex layer varies from the peak level where 0.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: October 14, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Geum-jong Bae, Tae-hee Choe, Sang-su Kim, Hwa-sung Rhee, Nae-in Lee, Kyung-wook Lee
  • Patent number: D902445
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: November 17, 2020
    Inventors: Kyung Wook Lee, Kyung Yul Lee, Hong Suk Han
  • Patent number: D903153
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: November 24, 2020
    Inventors: Kyung Wook Lee, Kyung Yul Lee, Hong Suk Han