Patents by Inventor In Sun Han

In Sun Han 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).

  • Ligands for semiconductor nanocrystals
    Patent number: 9759727
    Abstract: In this invention, polyimidazole ligands (PILs) incorporating pendant imidazole moieties for nanocrystal binding and either sulfonatebetaine, carboxybetaine, or phosphocholinebetaine moieties for water-solubilization have been developed. Greatly enhanced stability of nanocrystals (both over time and in wide pH range) was achieved by incorporating multi-dentate imidazole moieties which provide strong coordination of the ligand to the nanocrystal surface and prevent aggregation of nanocrystals. Synthesis of betaine PILs was developed by modifying the synthesis of recently developed PEG containing poly imidazole ligands (PEG PILs). These nanocrystals are compact, water soluble, and biocompatible.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: September 12, 2017
    Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Hee-Sun Han, Wenhao Liu, Moungi G. Bawendi
  • METHOD OF PREPARING SUPERABSORBENT POLYMER GRANULES
    Publication number: 20170226295
    Abstract: A method of preparing absorbent polymer granules is provided. The method of preparing fine particle granules according to the present disclosure may provide granules of which re-breaking is minimized due to a superior binding force between fine particles.
    Type: Application
    Filed: October 8, 2015
    Publication date: August 10, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Kyu Pal Kim, Chang Sun Han
  • METHOD OF PREPARING SUPERABSORBENT POLYMER
    Publication number: 20170226248
    Abstract: A method of preparing a superabsorbent polymer is provided. The method of preparing the superabsorbent polymer according to the present disclosure is able to provide the superabsorbent polymer having an improved absorption rate while having superior centrifuge retention capacity (CRC) and absorbency under pressure (AUP).
    Type: Application
    Filed: October 8, 2015
    Publication date: August 10, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Kyu Pal Kim, Chang Sun Han
  • Preparation method of superabsorbent polymer
    Patent number: 9701796
    Abstract: Provided is a method of preparing a superabsorbent polymer. According to the method of preparing the superabsorbent polymer of the present invention, provided is a superabsorbent polymer having improved physical properties, in which the superabsorbent polymer has improved absorption rate and liquid permeability without reduction in centrifuge retention capacity or absorbency under load.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: July 11, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Hwayoon Jung, Chang Sun Han, Chul Hee Ryu, Mi Young Kim, Tae Bin Ahn
  • Method for preparing super absorbent polymer and super absorbent polymer prepared therefrom
    Patent number: 9700873
    Abstract: The present invention relates to a method for preparing a super absorbent polymer. The method for preparing a super absorbent polymer according to the present invention can provide a super absorbent resin having fast absorption rate and high absorption properties under pressure by using the polycarboxylic acid-based copolymer under pulverization of the hydrous gel phase polymer.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: July 11, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Yong Hun Lee, Tae Bin Ahn, Chang Sun Han, Hwayoon Jung
  • Preparation method of a super absorbent polymer
    Patent number: 9656296
    Abstract: The present invention relates to a method of preparing a super absorbent polymer (SAP), and more specifically to a method of preparing a SAP including the steps of spraying the monomer composition on a substrate having a hydrophobic surface of a certain tan angle and carrying out a UV polymerization on a polymerization reactor having a slightly hydrophilic surface. The present invention can improve the conversion rate of polymerization because the shape of the monomer solution is changed from prior sheet form to droplet form so that UV rays reach the deeper layer of the droplets, can minimize or simplify the recycling process because it is easy to control the particles of the prepared polymer, and can provides the SAP of high caliber by narrowing the particle diameter distribution and improving the uniformity.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: May 23, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Gyu Leem, Gi-Cheul Kim, Sang-Gi Lee, Kyu-Pal Kim, Tae-Young Won, Chang-Sun Han
  • Method for preparing a super absorbent polymer
    Patent number: 9656242
    Abstract: The present invention relates to a method for preparing a super absorbent polymer. The method for preparing a super absorbent polymer according to the present invention comprises the steps of: preparing a hydrogel polymer by carrying out a thermal polymerization or a photopolymerization of a monomer composition including a water-soluble ethylene-based unsaturated monomer and a polymerization initiator; drying the hydrogel polymer; pulverizing the dried polymer; mixing the pulverized polymer with a surface crosslinking agent and a polymer particle having a core-shell structure; and carrying out a surface crosslinking reaction. According to the present invention, the super absorbent polymer having improved permeability can be obtained by adding the polymer particle during surface crosslinking.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: May 23, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Yong Hun Lee, Chang Sun Han, Sang Gi Lee, Mi Young Kim
  • Semiconductor device connected by anisotropic conductive film
    Patent number: 9657196
    Abstract: A semiconductor device connected by an anisotropic conductive film. The anisotropic conductive film includes a composition for an anisotropic conductive film including a first epoxy resin having an exothermic peak temperature of about 80° C. to about 110° C. and a second epoxy resin having an exothermic peak temperature of 120° C. to 200° C., as measured by differential scanning calorimetry (DSC). The first epoxy resin and the second epoxy resin are present in combined amount of about 30 wt % to about 50 wt % based on a total weight of the composition in terms of solid content. The second epoxy resin is present in an amount of about 60 to about 90 parts by weight based on 100 parts by weight of the first and second epoxy resins.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: May 23, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ji Yeon Kim, Kyoung Ku Kang, Kyoung Soo Park, Young Woo Park, Byeong Geun Son, Kyoung Hun Shin, Young Ju Shin, Kwang Jin Jung, Jae Sun Han, Ja Young Hwang
  • FLUID INFUSION SYSTEMS AND METHODS
    Publication number: 20170120035
    Abstract: Systems and methods are disclosed for controlling the flow of fluids in a fluid infusion system. The system may include first and second fluid containers, first and second tubes coupled to the first and second fluid containers, and an external valve coupled to the second tube and configured to be attached to the first tube. The valve may be configured to shape the first tube to form a valve region which is opened or closed by an actuating element in the valve that is driven by hydrostatic pressure from the second tube. A full second container may generate a pressure that is concentrated through a diaphragm onto a pin which presses on the shaped first tube region, closing it to allow only fluid from the second container to flow. When the fluid level in the second line falls reducing pressure, the pin's force reduces until the first tube is opened.
    Type: Application
    Filed: January 12, 2017
    Publication date: May 4, 2017
    Inventors: Robert Dwaine BUTTERFIELD, Scott Hellen, Vaclav Barina, Allison Leigh Barry, Julie Chang, Jeanette M. Liu, Huy Quang Nguyen, Michele Wei, Samuel A. Derose, Thendral Govindaraj, Samantha Hoang, Andrew L. Marino, Raul Sun Han Chang, Arthur Y. Chang, Deval Gupta
  • Superabsorbent polymer
    Patent number: 9624328
    Abstract: The present invention relates to a superabsorbent polymer which has excellent initial absorbency and keeps water from flowing out under pressure even after passage of time. The superabsorbent polymer of the present invention is characterized by simultaneously optimizing centrifuge retention capacity (CRC), absorbency under pressure (AUP), liquid permeability (SFC), and gel strength within a predetermined range. The present invention can provide improved physical properties of a final diaper product and apply an ultra-thin technology to the diaper product.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: April 18, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Tae Young Won, Dae Woo Nam, Chang Sun Han
  • Semiconductor device using composition for anisotropic conductive adhesive film or anisotropic conductive adhesive film
    Patent number: 9589696
    Abstract: A semiconductor device bonded by an anisotropic conductive adhesive composition, the anisotropic conductive adhesive composition having a solid content ratio between a polymer binder system and a curing system of about 40:60 to about 60:40, and a coefficient of thermal expansion of about 150 ppm/° C. or less at about 100° C. or less.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: March 7, 2017
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Hyun Hee Namkung, Jae Sun Han, Hyun Wook Kim, Jin Young Seo, Kwang Jin Jung, Dong Seon Uh
  • METHOD FOR PREPARING SUPER ABSORBENT POLYMER AND SUPER ABSORBENT POLYMER PREPARED THEREFROM
    Publication number: 20170029576
    Abstract: The present invention relates to a method for preparing a super absorbent polymer. The method for preparing a super absorbent polymer according to the present invention can provide a super absorbent resin exhibiting fast absorption rate and high saline flow conductivity while having excellent absorption properties such as a centrifuge retention capacity and an absorbency under pressure, by using the polycarboxylic acid-based copolymer under pulverization of the hydrous gel phase polymer.
    Type: Application
    Filed: November 9, 2015
    Publication date: February 2, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Yong Hun Lee, Tae Bin Ahn, Chang Sun Han, Sung Jong Seo
  • REFRIGERATOR AND CONTROL METHOD THEREOF
    Publication number: 20170030631
    Abstract: Disclosed herein are a refrigerator of sensing a degree of rancidity of fermented liquor to transmit state information of the fermented liquor to a remote user, and a method of controlling the refrigerator. The refrigerator may include a storage space configured to store fermented liquor; a cooling unit configured to cool inside air of the storage space; a rancidity sensor configured to sense a degree of rancidity of the fermented liquor; and a communication unit configured to transmit state information of the fermented liquor created based on the degree of rancidity to a predetermined external device.
    Type: Application
    Filed: July 12, 2016
    Publication date: February 2, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyu Sun HAN, Yoon Young KIM
  • PREPARATION METHOD OF SUPERABSORBENT POLYMER AND SUPERABSORBENT POLYMER PREPARED THEREBY
    Publication number: 20170015798
    Abstract: Provided are a preparation method of a superabsorbent polymer, and a superabsorbent polymer prepared thereby. The preparation method of the superabsorbent polymer according to the present disclosure enables preparation of the superabsorbent polymer which is excellent in absorption properties such as centrifuge retention capacity and absorbency under pressure, and also has improved permeability. In addition, the preparation method exhibits excellent operability during the preparation (in particular, surface crosslinking of the polymer) and excellent productivity due to low production of coarse particles and fine particles.
    Type: Application
    Filed: June 12, 2015
    Publication date: January 19, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Yong Hun Lee, Chang Sun Han, Hye Mi Nam, Dong Jo Ryu, Hyemin Lee
  • WIRELESS POWER RECEIVER AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20170018975
    Abstract: A wireless power receiver and a method for manufacturing the same is disclosed, The wireless power receiver includes a substrate; an antenna configured to transmit a control signal, a coil configured to receive power, and a control unit configured to generate the control signal for wireless receiving power, to convert a received power, and to output a converted power to a load, wherein the antenna, the coil, and the control unit are mounted on the substrate.
    Type: Application
    Filed: March 9, 2016
    Publication date: January 19, 2017
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Si Hyung KIM, Tae Sung KIM, Chul Gyun PARK, Sung Uk LEE, Chang Soo KANG, Hee Sun HAN
  • Semiconductor device using composition for anisotropic conductive adhesive film or anisotropic conductive adhesive film
    Patent number: 9534154
    Abstract: An electronic device includes an anisotropic conductive adhesive film as a connection material, wherein the anisotropic conductive adhesive film has a flowability of 50% or more after preliminary pressing at 80° C. and 1 MPa for 1 second and final pressing at 180° C. and 3 MPa for 5 seconds, and a connection resistance increment greater than 0% but not greater than 25%, as calculated by Expression 1: Connection resistance increment (%)=|(A?B)/A|×100??(Expression 1) where A is a connection resistance measured after preliminary pressing at 80° C. and 1 MPa for 1 second and final pressing at 180° C. and 3 MPa for 5 seconds, and B is a connection resistance measured after reliability evaluation at a temperature of 85° C. and a humidity of 85% for 250 hours following preliminary pressing and final pressing.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: January 3, 2017
    Assignee: Cheil Industries, Inc.
    Inventors: Jin Young Seo, Hyun Wook Kim, Hyun Hee Namkung, Kyung Il Sul, Dong Seon Uh, Kwang Jin Jung, Jae Sun Han
  • SUPER ABSORBENT POLYMER AND A PREPARATION METHOD THEREOF
    Publication number: 20160361704
    Abstract: The present invention relates to a super absorbent polymer (SAP) and a preparation method thereof. More specifically, the present invention provides a SAP satisfying the overall properties required to a SAP and especially the superior initial absorbency and absorbing rate under load at the same time, and a preparation method thereof, by treating the surface of the SAP with a surface treatment solution including water and a diol-based or glycol-based surface crosslinking agent.
    Type: Application
    Filed: August 25, 2016
    Publication date: December 15, 2016
    Applicant: LG Chem, Ltd.
    Inventors: Tae-Young Won, Chang-Sun Han, Gi-Cheul Kim, Yong-Hun Lee, Sang-Gi Lee, Kyu-Pal Kim, Sung-Soo Park, Gyu Leem
  • Super absorbent polymer and a preparation method thereof
    Patent number: 9517446
    Abstract: The present invention relates to a super absorbent polymer (SAP) and a preparation method thereof. More specifically, the present invention provides a SAP satisfying the overall properties required to a SAP and especially the superior initial absorbency and absorbing rate under load at the same time, and a preparation method thereof, by treating the surface of the SAP with a surface treatment solution including water and a diol-based or glycol-based surface crosslinking agent.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: December 13, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Tae-Young Won, Chang-Sun Han, Gi-Cheul Kim, Yong-Hun Lee, Sang-Gi Lee, Kyu-Pal Kim, Sung-Soo Park, Gyu Leem
  • Anisotropic conductive film including conductive adhesive layer and semiconductor device connected by the same
    Patent number: 9490228
    Abstract: An anisotropic conductive film includes a conductive adhesive layer including conductive particles and insulating particles, and an insulating adhesive layer not including conductive particles. In the anisotropic conductive film, the conductive particles and the insulating particles of the conductive adhesive layer have a total particle density of 7.0×105/d2 to 10.0×105/d2 (particles) per square millimeter (mm2) (where d is a diameter of the conductive particles in ?m).
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: November 8, 2016
    Assignee: CHEIL INDUSTRIES, INC.
    Inventors: Kyoung Soo Park, Soon Young Kwon, Ji Yeon Kim, Young Woo Park, Jae Sun Han, Ja Young Hwang
  • METHOD FOR PREPARING SUPER ABSORBENT POLYMER AND SUPER ABSORBENT POLYMER PREPARED THEREFROM
    Publication number: 20160318002
    Abstract: The present invention relates to a method for preparing a super absorbent polymer. The method for preparing a super absorbent polymer according to the present invention can provide a super absorbent resin having fast absorption rate and high absorption properties under pressure by using the polycarboxylic acid-based copolymer under pulverization of the hydrous gel phase polymer.
    Type: Application
    Filed: October 19, 2015
    Publication date: November 3, 2016
    Applicant: LG Chem, Ltd.
    Inventors: Yong Hun Lee, Tae Bin Ahn, Chang Sun Han, Hwayoon Jung