Patents by Inventor Hokyung Lee

Hokyung 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: 9796528
    Abstract: The present invention relates to a method of optimizing delivery of trays and a system using the method. The method includes: (a) determining a list of delivery of trays; (b) loading a delivery-required tray in the delivery list on the crane in accordance with a loading priority order; (c) loading, on the crane, another tray that can be simultaneously delivered along with the tray that has been loaded on the crane at (b), if requirement for delivery of the tray that can be simultaneously delivered is within a delivery stand-by limit time; and (d) transferring the trays loaded on the crane at (b) or (c).
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: October 24, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Kyuhwang Lee, Hokyung Lee, Juseok Lee, Jayoung Hur
  • Patent number: 9417618
    Abstract: A method of cutting one or more kinds of quadrangular unit pieces having a relatively small size from a quadrangular base material having a relatively large size uses a cutter frame including a plurality of cutters to manufacture the quadrangular unit pieces. The method includes (a) scanning a quadrangular base material in a longitudinal direction and in a lateral direction to check positions of defects on the quadrangular base material, (b) calculating a yield when cutting the quadrangular base material using two or more kinds of cutting frames, (c) selecting one of the cutting frames in which the yield calculated at the calculation step (b) is within a range of upper 30%, and (d) cutting the quadrangular base material using the cutting frame selected at the selection step (c) to manufacture quadrangular unit pieces.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: August 16, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Hokyung Lee, Eungjin Jang, Kyu Hwang Lee, Yoomin Lee, Hoonyeol Kim
  • Publication number: 20160167881
    Abstract: The present invention relates to a method of optimizing delivery of trays and a system using the method. The method includes: (a) determining a list of delivery of trays; (b) loading a delivery-required tray in the delivery list on the crane in accordance with a loading priority order; (c) loading, on the crane, another tray that can be simultaneously delivered along with the tray that has been loaded on the crane at (b), if requirement for delivery of the tray that can be simultaneously delivered is within a delivery stand-by limit time; and (d) transferring the trays loaded on the crane at (b) or (c).
    Type: Application
    Filed: September 2, 2014
    Publication date: June 16, 2016
    Inventors: Kyuhwang LEE, Hokyung LEE, Juseok LEE, Jayoung HUR
  • Patent number: 9104191
    Abstract: Disclosed herein is a method of cutting one or more kinds of quadrangular unit pieces having a relatively small size from a quadrangular base material having a relatively large size using a cutter frame including a plurality of cutters to manufacture the quadrangular unit pieces, the method including (a) an inspection step of scanning a quadrangular base material in a longitudinal direction and in a lateral direction of the quadrangular base material to check positions of defects on the quadrangular base material, (b) a calculation step of calculating a yield when imaginarily cutting the quadrangular base material using two or more kinds of cutting frames, (c) a selection step of selecting one of the cutting frames in which the yield calculated at the calculation step (b) is within a range of upper 30%, and (d) a manufacturing step of cutting the quadrangular base material using the cutting frame selected at the selection step (c) to manufacture quadrangular unit pieces.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: August 11, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Hokyung Lee, Eungjin Jang, Kyu Hwang Lee, Yoomin Lee, Hoonyeol Kim
  • Publication number: 20150024162
    Abstract: Disclosed herein is a cutting frame including a plurality of cutters for cutting one or more kinds of rectangular unit pieces having a relatively small size from a rectangular base material at a predetermined inclination, the cutters being mounted or formed in the cutting frame such that the cutters correspond to the rectangular unit pieces, wherein the cutters are mounted or formed in the cutting frame based on the array structure of the rectangular unit pieces such that a large majority of the remaining rectangular unit pieces, excluding the uppermost row rectangular unit pieces and the lowermost row rectangular unit pieces, are arranged while being adjacent to different rectangular unit pieces at four sides of each rectangular unit piece, and at least some combinations of adjacent four rectangular unit pieces form an island-type residue in the center thereof.
    Type: Application
    Filed: September 18, 2014
    Publication date: January 22, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Hokyung LEE, Soonki HEO, Jongku LEE
  • Publication number: 20150000484
    Abstract: Disclosed herein is a method of manufacturing one or more kinds of rectangular unit pieces from a long base material sheet at a predetermined angle through a continuous cutting process using a cutting frame, the method including (a) manufacturing a base material sheet of a laminate structure having two or more stacked sheets and winding the base material sheet on a roll, (b) continuously feeding the base material sheet, wound on the roll, (c) cutting the fed base material sheet using a cutting frame having cutters mounted or formed therein in a structure in which the cutters correspond to rectangular unit pieces to be manufactured, the cutters being arranged such that the shapes of opposite side ends of the cutters coincide with each other when the cutters are successively arranged, the cutting being carried out while the base material sheet is partially overlapped such that a length (‘pitch’) for a one-time cutting process is equal to a spacing distance between the opposite side ends of the cutters in the lo
    Type: Application
    Filed: September 16, 2014
    Publication date: January 1, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Hokyung LEE, Jaein CHOI, Soonki HEO, Jongku LEE
  • Publication number: 20140106118
    Abstract: Disclosed herein is a cutter frame including a plurality of cutters for cutting one or more kinds of rectangular unit pieces having a relatively small size from a rectangular base material at a predetermined inclination, the cutters being mounted or formed in the cutter frame such that the cutters correspond to the rectangular unit pieces, two of the rectangular unit pieces being arranged mainly in the inclination direction such that the rectangular unit pieces are in contact with each other at one side of each rectangular unit piece, wherein, on the assumption that imaginary vertex coordinates of a leftmost end are (Ax, Ay), and imaginary vertex coordinates of a rightmost end are (Bx, By), when the rectangular unit pieces coincide with each other at a left or right side of each rectangular unit piece, vertex coordinates (B?x, B?y) of the rightmost end are greater than the imaginary vertex coordinates (Bx, By) of the rightmost end based on the imaginary vertex coordinates (Ax, Ay) of the leftmost end in an ar
    Type: Application
    Filed: September 3, 2013
    Publication date: April 17, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Hokyung Lee, SoonKi Heo, Jaein Choi
  • Publication number: 20130317638
    Abstract: Disclosed is a method of cutting one or more kinds of quadrangular unit pieces having a relatively small size from a quadrangular base material having a relatively large size using a cutter frame including a plurality of cutters to manufacture the quadrangular unit pieces, the method including (a) scanning a quadrangular base material in a longitudinal direction and in a lateral direction of the quadrangular base material to check positions of defects on the quadrangular base material, (b) calculating a yield when imaginarily cutting the quadrangular base material using two or more kinds of cutting frames, (c) selecting one of the cutting frames in which the yield calculated at the calculation step (b) is within a range of upper 30%, and (d) cutting the quadrangular base material using the cutting frame selected at the selection step (c) to manufacture quadrangular unit pieces.
    Type: Application
    Filed: July 31, 2013
    Publication date: November 28, 2013
    Applicant: LG CHEM, LTD.
    Inventors: Hokyung LEE, Eungjin JANG, Kyu Hwang LEE, Yoomin LEE, Hoonyeol KIM
  • Publication number: 20120078406
    Abstract: Disclosed herein is a method of cutting one or more kinds of quadrangular unit pieces having a relatively small size from a quadrangular base material having a relatively large size using a cutter frame including a plurality of cutters to manufacture the quadrangular unit pieces, the method including (a) an inspection step of scanning a quadrangular base material in a longitudinal direction and in a lateral direction of the quadrangular base material to check positions of defects on the quadrangular base material, (b) a calculation step of calculating a yield when imaginarily cutting the quadrangular base material using two or more kinds of cutting frames, (c) a selection step of selecting one of the cutting frames in which the yield calculated at the calculation step (b) is within a range of upper 30%, and (d) a manufacturing step of cutting the quadrangular base material using the cutting frame selected at the selection step (c) to manufacture quadrangular unit pieces.
    Type: Application
    Filed: March 10, 2010
    Publication date: March 29, 2012
    Applicant: LG CHEM, LTD.
    Inventors: Hokyung Lee, Eungjin Jang, Kyu Hwang Lee, Yoomin Lee, Hoonyeol Kim
  • Publication number: 20110056354
    Abstract: Disclosed herein is a cutter frame including a plurality of cutters for cutting one or more kinds of rectangular unit pieces having a relatively small size from a rectangular base material at a predetermined inclination, the cutters being mounted or formed in the cutter frame such that the cutters correspond to the rectangular unit pieces, two of the rectangular unit pieces being arranged mainly in the inclination direction such that the rectangular unit pieces are in contact with each other at one side of each rectangular unit piece, wherein, on the assumption that imaginary vertex coordinates of a leftmost end are (Ax, Ay), and imaginary vertex coordinates of a rightmost end are (Bx, By), when the rectangular unit pieces coincide with each other at a left or right side of each rectangular unit piece, vertex coordinates (B?x, B?y) of the rightmost end are greater than the imaginary vertex coordinates (Bx, By) of the rightmost end based on the imaginary vertex coordinates (Ax, Ay) of the leftmost end in an ar
    Type: Application
    Filed: August 27, 2008
    Publication date: March 10, 2011
    Applicant: LG Chem, Ltd.
    Inventors: Hokyung Lee, Soonki Heo, Jaein Choi
  • Publication number: 20110048209
    Abstract: Disclosed herein is a cutting frame including a plurality of cutters for cutting two or more kinds of rectangular unit pieces having relatively small sizes from a rectangular base material at a predetermined inclination, the cutters being mounted or formed in the cutting frame such that the cutters correspond to the rectangular unit pieces, wherein the cutters are formed in the cutting frame in an array structure of the rectangular unit pieces in which largest-sized rectangular unit pieces are arranged at a central part of a base material based on the height of the base material in the longitudinal direction of the base material, and small-sized rectangular unit pieces are arranged above and below the largest-sized rectangular unit pieces.
    Type: Application
    Filed: August 27, 2008
    Publication date: March 3, 2011
    Applicant: LG Chem, Ltd.
    Inventors: Hokyung Lee, Soonki Heo, Jaein Choi
  • Publication number: 20100288100
    Abstract: Disclosed herein is a cutting frame including a plurality of cutters for cutting one or more kinds of rectangular unit pieces having a relatively small size from a rectangular base material at a predetermined inclination, the cutters being mounted or formed in the cutting frame such that the cutters correspond to the rectangular unit pieces, wherein the cutters are mounted or formed in the cutting frame in an array structure of the rectangular unit pieces in which the rectangular unit pieces adjacent to one another at each side thereof have a vertex coincidence ratio equivalent to less than 50%.
    Type: Application
    Filed: August 27, 2008
    Publication date: November 18, 2010
    Applicant: LG CHEM, LTD.
    Inventors: Hokyung Lee, Jaein Choi, Soonki Heo
  • Publication number: 20100236371
    Abstract: Disclosed herein is a cutting frame including a plurality of cutters for cutting one or more kinds of rectangular unit pieces having a relatively small size from a rectangular base material at a predetermined inclination, the cutters being mounted or formed in the cutting frame such that the cutters correspond to the rectangular unit pieces, wherein the cutters are mounted or formed in the cutting frame based on the array structure of the rectangular unit pieces such that a large majority of the remaining rectangular unit pieces, excluding the uppermost row rectangular unit pieces and the lowermost row rectangular unit pieces, are arranged while being adjacent to different rectangular unit pieces at four sides of each rectangular unit piece, and at least some combinations of adjacent four rectangular unit pieces form an island-type residue in the center thereof.
    Type: Application
    Filed: July 2, 2008
    Publication date: September 23, 2010
    Applicant: LG CHEM ,LTD.
    Inventors: Hokyung Lee, Soonki Heo, Jongku Lee
  • Patent number: 7786228
    Abstract: Disclosed herein is an optimization method in a polymerization system in which heat is generated during the polymerization with an initiator.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: August 31, 2010
    Assignee: LG Chem, Ltd.
    Inventors: Hokyung Lee, Sujin Lee, Seungyoung Park, Jongku Lee
  • Publication number: 20100206146
    Abstract: Disclosed herein is a method of manufacturing one or more kinds of rectangular unit pieces from a long base material sheet at a predetermined angle through a continuous cutting process using a cutting frame, the method including (a) manufacturing a base material sheet of a laminate structure having two or more stacked sheets and winding the base material sheet on a roll, (b) continuously feeding the base material sheet, wound on the roll, (c) cutting the fed base material sheet using a cutting frame having cutters mounted or formed therein in a structure in which the cutters correspond to rectangular unit pieces to be manufactured, the cutters being arranged such that the shapes of opposite side ends of the cutters coincide with each other when the cutters are successively arranged, the cutting being carried out while the base material sheet is partially overlapped such that a length (‘pitch’) for a one-time cutting process is equal to a spacing distance between the opposite side ends of the cutters in the lo
    Type: Application
    Filed: July 11, 2008
    Publication date: August 19, 2010
    Applicant: LG CHEM, LTD
    Inventors: Hokyung Lee, Jaelin Choi, Soonki Heo, Jongku Lee
  • Patent number: 7528715
    Abstract: A vehicle dispatch system enables optimal dispatch of a plurality of vehicles with information of available vehicles from transportation company terminals and information of orders from client terminals under restrictive conditions such as vehicle sizes, minimum loading rates, and a maximum number of assignment locations, based on transportation regions preset in consideration of transportation times, past order quantities, and order congestion degrees, such that a relevant vehicle can perform delivery of freight within a predetermined transportation region to minimize a total transportation cost for each transportation region. The system minimizes a delivery distance of each vehicle, increases a loading volume of the vehicle to reduce an empty rate of vehicles, and minimizes the number of dispatched vehicles, thereby reducing the total transportation cost.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: May 5, 2009
    Assignee: LG Chem, Ltd.
    Inventors: Hokyung Lee, Jongku Lee, Jaein Choi
  • Publication number: 20070238844
    Abstract: Disclosed herein is an optimization method in a polymerization system in which heat is generated during the polymerization with an initiator.
    Type: Application
    Filed: January 19, 2007
    Publication date: October 11, 2007
    Inventors: Hokyung Lee, Sujin Lee, Seungyoung Park, Jongku Lee
  • Publication number: 20070194912
    Abstract: A vehicle dispatch system enables optimal dispatch of a plurality of vehicles with information of available vehicles from transportation company terminals and information of orders from client terminals under restrictive conditions such as vehicle sizes, minimum loading rates, and a maximum number of assignment locations, based on transportation regions preset in consideration of transportation times, past order quantities, and order congestion degrees, such that a relevant vehicle can perform delivery of freight within a predetermined transportation region to minimize a total transportation cost for each transportation region. The system minimizes a delivery distance of each vehicle, increases a loading volume of the vehicle to reduce an empty rate of vehicles, and minimizes the number of dispatched vehicles, thereby reducing the total transportation cost.
    Type: Application
    Filed: January 10, 2007
    Publication date: August 23, 2007
    Applicant: LG CHEM, LTD.
    Inventors: Hokyung Lee, Jongku Lee, Jaein Choi