Patents by Inventor Hee Hyun Lee

Hee Hyun 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: 20210184684
    Abstract: A time-to-digital converter and a converting method are provided. The time-to-digital converter includes: a phase locked loop unit configured to multiply an input reference clock by using a phase locked loop (PLL); a counting unit configured to count the multiplied input reference clock and record an edge position of an input signal; a delay locked loop unit configured to decompose the multiplied input reference clock into a multi-phase clock using a delay locked loop (DLL), and sense the recorded edge position of the input signal among the decomposed multi-phase clock and record a fine edge position; and a control unit configured to calculate a time difference in time of flight (ToF) between a start signal and a stop signal of the input signal by using the recorded edge position and the recorded fine edge position.
    Type: Application
    Filed: December 2, 2020
    Publication date: June 17, 2021
    Applicant: HYUNDAI AUTRON CO., LTD.
    Inventors: Jung Dae OH, Hee Hyun LEE
  • Patent number: 10927238
    Abstract: A solid surface comprises (i) a crosslinked acrylic or unsaturated polyester resin present in an amount no greater than 52 volume fraction percent, and (ii) no greater than 48 volume fraction percent of inorganic filler particles distributed evenly throughout the solid surface wherein (a) 95-99 volume fraction percent of the filler particles has a major dimension in the range of from 0.5 to no greater than 10 microns, (b) the D50 of the filler particles is from 0.5-2.5 microns, and (c) the D90 of the filler particles is equal to or less than 10 microns.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: February 23, 2021
    Assignee: DUPONT SAFETY & CONSTRUCTION, INC.
    Inventors: Gregory Scott Blackman, Hee Hyun Lee, Keith William Pollak, Michael T Pottiger, Timothy Scott Wyant
  • Patent number: 10825575
    Abstract: The present invention provides a thick-film paste composition for printing the front side of a solar cell device having one or more insulating layers. The thick-film paste comprises an electrically conductive metal and an oxide composition dispersed in an organic medium that includes an organopolysiloxane and a fluorine-containing degradation agent.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: November 3, 2020
    Inventors: Hee Hyun Lee, Viacheslav V Diev, Eric Maurice Smith, Kalyan Venkata Chalapathi Rapolu
  • Patent number: 10741300
    Abstract: The present invention provides a thick-film paste composition for printing the front side of a solar cell device having one or more insulating layers. The thick-film paste comprises an electrically conductive metal and an oxide composition dispersed in an organic medium that includes microgel particles and an organopolysiloxane.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: August 11, 2020
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Hoang Vi Tran, Hee Hyun Lee, Michael Stephen Wolfe
  • Publication number: 20200176147
    Abstract: The present invention provides a thick-film paste composition for printing the front side of a solar cell device having one or more insulating layers. The thick-film paste comprises an electrically conductive metal and an oxide composition dispersed in an organic medium that includes an organopolysiloxane and a fluorine-containing degradation agent.
    Type: Application
    Filed: February 3, 2020
    Publication date: June 4, 2020
    Inventors: Hee Hyun Lee, Viacheslav V. Diev, Eric Maurice Smith, Kalyan Venkata Chalapathi Rapolu
  • Patent number: 10593439
    Abstract: The present invention provides a thick-film paste composition for printing the front side of a solar cell device having one or more insulating layers. The thick-film paste comprises an electrically conductive metal and an oxide composition dispersed in an organic medium that includes an organopolysiloxane and a fluorine-containing degradation agent.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: March 17, 2020
    Assignee: DUPONT ELECTRONICS, INC.
    Inventors: Hee Hyun Lee, Viacheslav V Diev, Eric Maurice Smith, Kalyan Venkata Chalapathi Rapolu
  • Publication number: 20190386403
    Abstract: This invention provides a polymer thick film electrically conductive paste composition, comprising conductive metal powder, a resin blend of polyol and phenoxy resin, blocked aliphatic polyisocyanate and one or more polar, aprotic solvents. In one embodiment the paste composition is used to form electrically conductive adhesive. In another embodiment the paste composition is used to form an electrically conductive polymer thick film.
    Type: Application
    Filed: June 18, 2019
    Publication date: December 19, 2019
    Inventors: HEE HYUN LEE, EDMUND FRANCIS SCHIEFFER, JR., HOANG VI TRAN
  • Publication number: 20190387621
    Abstract: This invention provides a polymer thick film dielectric paste composition, comprising a mixture of titanium dioxide and boron nitride powders, a resin blend of polyol and phenoxy resin, one or more additives selected from the group consisting of a linear aliphatic polyester, a block copolymer, a blocked aliphatic polyisocyanate, and a wetting and dispersing agent, and one or more polar, aprotic solvents. The paste composition may be used to form polymer thick film dielectric layers in electrical circuits subject to thermoforming and in articles requiring stretchable dielectric layers such as wearables.
    Type: Application
    Filed: June 18, 2019
    Publication date: December 19, 2019
    Inventors: Hee Hyun Lee, Vincenzo Arancio
  • Patent number: 10403770
    Abstract: A conductive paste composition comprises (i) an inorganic powder comprising at least a conductive powder, (ii) at least one microgel polymer, and (iii) a solvent. The paste composition may be used in a process for manufacturing an electrical device comprising: preparing a substrate; applying the conductive paste onto the substrate in a preselected pattern; and heating the applied conductive paste to form a conductive structure that provides an electrode for connecting the device. The paste composition beneficially permits the formation of narrow, high aspect ratio features in the conductive structure.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: September 3, 2019
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Michael Stephen Wolfe, John Donald Summers, Bryan Benedict Sauer, Hoang Vi Tran, Brian D Mather, Hee Hyun Lee, Esther Kim, Ma Helen Cativo, Yuefei Tao
  • Patent number: 10221302
    Abstract: A solid surface comprises (i) a crosslinked acrylic or unsaturated polyester resin present in an amount no greater than 51 or 52 volume fraction percent, and (ii) no greater than 48 or 49 volume fraction percent of inorganic filler particles that are modified with discrete functional particles that are bound, or adhered to the filler particles, the filler particles being distributed evenly throughout the solid surface wherein (a) 95-99 volume fraction percent of the filler particles has a major dimension in the range of from 0.5 to no greater than 10 microns, (b) the D50 of the filler particles is from 0.5-2.5 microns, (c) the D90 of the filler particles is equal to or less than 10 microns and (d) the filler particles are modified with discrete functional particles that are bound, or adhered to the filler particles.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: March 5, 2019
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Gregory Scott Blackman, Hee Hyun Lee, Keith William Pollak, Michael T Pottiger, Timothy Scott Wyant
  • Publication number: 20180163025
    Abstract: A solid surface comprises (i) a crosslinked acrylic or unsaturated polyester resin present in an amount no greater than 51 or 52 volume fraction percent, and (ii) no greater than 48 or 49 volume fraction percent of inorganic filler particles that are modified with discrete functional particles that are bound, or adhered to the filler particles, the filler particles being distributed evenly throughout the solid surface wherein (a) 95-99 volume fraction percent of the filler particles has a major dimension in the range of from 0.5 to no greater than 10 microns, (b) the D50 of the filler particles is from 0.5-2.5 microns, (c) the D90 of the filler particles is equal to or less than 10 microns and (d) the filler particles are modified with discrete functional particles that are bound, or adhered to the filler particles.
    Type: Application
    Filed: July 17, 2017
    Publication date: June 14, 2018
    Inventors: Gregory Scott BLACKMAN, Hee Hyun LEE, Keith William POLLAK, Michael T. POTTIGER, Timothy Scott WYANT
  • Publication number: 20180163026
    Abstract: A solid surface comprises (i) a crosslinked acrylic or unsaturated polyester resin present in an amount no greater than 52 volume fraction percent, and (ii) no greater than 48 volume fraction percent of inorganic filler particles distributed evenly throughout the solid surface wherein (a) 95-99 volume fraction percent of the filler particles has a major dimension in the range of from 0.5 to no greater than 10 microns, (b) the D50 of the filler particles is from 0.5-2.5 microns, and (c) the D90 of the filler particles is equal to or less than 10 microns.
    Type: Application
    Filed: July 17, 2017
    Publication date: June 14, 2018
    Inventors: Gregory Scott Blackman, Hee Hyun Lee, Keith William Pollak, Michael T. Pottiger, Timothy Scott Wyant
  • Publication number: 20180114607
    Abstract: The present invention provides a thick-film paste composition for printing the front side of a solar cell device having one or more insulating layers. The thick-film paste comprises an electrically conductive metal and an oxide composition dispersed in an organic medium that includes an organopolysiloxane and a fluorine-containing degradation agent.
    Type: Application
    Filed: September 25, 2017
    Publication date: April 26, 2018
    Inventors: Hee Hyun Lee, Viacheslav V. Diev, Eric Maurice Smith, Kalyan Venkata Chalapathi Rapolu
  • Publication number: 20180102198
    Abstract: The present invention provides a thick-film paste composition for printing the front side of a solar cell device having one or more insulating layers. The thick-film paste comprises an electrically conductive metal and an oxide composition dispersed in an organic medium that includes microgel particles and an organopolysiloxane.
    Type: Application
    Filed: September 25, 2017
    Publication date: April 12, 2018
    Inventors: Hoang VI Tran, Hee Hyun Lee, Michael Stephen Wolfe
  • Publication number: 20160225925
    Abstract: A conductive paste composition comprises (i) an inorganic powder comprising at least a conductive powder, (ii) at least one microgel polymer, and (iii) a solvent. The paste composition may be used in a process for manufacturing an electrical device comprising: preparing a substrate; applying the conductive paste onto the substrate in a preselected pattern; and heating the applied conductive paste to form a conductive structure that provides an electrode for connecting the device. The paste composition beneficially permits the formation of narrow, high aspect ratio features in the conductive structure.
    Type: Application
    Filed: February 4, 2016
    Publication date: August 4, 2016
    Inventors: MICHAEL STEPHEN WOLFE, JOHN DONALD SUMMERS, BRYAN BENEDICT SAUER, HOANG VI TRAN, BRIAN D MATHER, HEE HYUN LEE, ESTHER KIM, MA HELEN CATIVO, YUEFEI TAO
  • Publication number: 20160164317
    Abstract: A battery monitoring apparatus according to an embodiment of the present invention includes: a summation processing unit that calculates a voltage for multiple cells including single cells selected from a plurality of single cells of a battery; a monitoring unit that monitors at least one of voltages for single cells of the battery and a voltage for the multiple cells of the battery; and a control unit that identifies whether the battery is normal by using the at least one of the voltages for the single cells of the battery and the voltage for the multiple cells of the battery.
    Type: Application
    Filed: December 3, 2015
    Publication date: June 9, 2016
    Inventors: Sang-Ho LEE, Hee-Hyun LEE
  • Patent number: 9200170
    Abstract: The present disclosure provides an inkjet ink comprising an aqueous vehicle and an encapsulated pigment dispersion. A process for encapsulating pigment dispersions is provided where a pigment is dispersed with a polymeric dispersant in an aqueous solvent system. The free polymer dispersant in the pigment dispersion is limited to less than 0.12 grams per gram of pigment. This dispersed pigment is then encapsulated by adding acrylate monomers and optionally acrylic and vinyl monomers and polymerizing. In the encapsulated pigment dispersion the weight ratio of final free polymer to polymer found to the final encapsulated pigment is less than 0.9. The free polymer dispersant is measured by a centrifugation method and the final free polymer is measured by a density gradient centrifugation method. Such encapsulated pigment dispersions may be used in inkjet inks and are stable to heat, aging test conditions, and solvent challenges. Prints from these inks have better durability.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: December 1, 2015
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Hee Hyun Lee, Michael Joseph Otley, Michael Stephen Wolfe, Tristan Williams
  • Patent number: 9197265
    Abstract: The present invention relates to a receiving device and method for removing a mismatch in a wireless communication system, and to a low noise amplifier (LNA) therefor. According to the present invention, the receiving method for removing the mismatch comprises the steps of: distinguishing the type of input signal received through a wireless network; controlling such that a common bias is applied to transistors within a low noise amplifier, if said input signal is a wideband signal; and outputting a signal from which said mismatch has been removed, by using a current mirror mode in which current paths within said low noise amplifier are crossed.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: November 24, 2015
    Assignees: Samsung Electronics Co., Ltd., Industry-University Cooperation Foundation Korea Aerospace University
    Inventors: Hee-Hyun Lee, Young-Jin Kim, Young-Min Ki
  • Publication number: 20150065075
    Abstract: The present invention relates to a receiving device and method for removing a mismatch in a wireless communication system, and to a low noise amplifier (LNA) therefor. According to the present invention, the receiving method for removing the mismatch comprises the steps of: distinguishing the type of input signal received through a wireless network; controlling such that a common bias is applied to transistors within a low noise amplifier, if said input signal is a wideband signal; and outputting a signal from which said mismatch has been removed, by using a current mirror mode in which current paths within said low noise amplifier are crossed.
    Type: Application
    Filed: November 10, 2014
    Publication date: March 5, 2015
    Inventors: Hee-Hyun LEE, Young-Jin KIM, Young-Min KI
  • Patent number: 8957134
    Abstract: A process for encapsulating pigment dispersions is provided where a pigment is dispersed with a polymeric dispersant in an aqueous solvent system. The free polymer dispersant in the pigment dispersion is limited to less than 0.12 grams per gram of pigment. This dispersed pigment is then encapsulated by adding acrylate monomers and optionally acrylic and vinyl monomers and polymerizing. In the encapsulated pigment dispersion the weight ratio of final free polymer to polymer found to the final encapsulated pigment is less than 0.9. The free polymer dispersant is measured by a centrifugation method and the final free polymer is measured by a density gradient centrifugation method. Such encapsulated pigment dispersions may be used in inkjet inks and are stable to heat, aging test conditions, and solvent challenges. Prints from these inks have better durability.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: February 17, 2015
    Assignee: E I du Pont de Nemours and Company
    Inventors: Hee Hyun Lee, Michael Joseph Otley, Michael Stephen Wolfe, Tristan Williams