Patents by Inventor Kyung-A Cho

Kyung-A Cho 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: 20160289792
    Abstract: A process is provided for preparing a spent noble metal fixed-bed catalyst for precious metals recovery, comprising: a) adding the catalyst to a caustic solution to wash the spent catalyst and to make a wash slurry having an alkaline pH, wherein the spent catalyst has been in contact with chloroaluminate ionic liquid catalyst, and wherein the spent catalyst comprises from 5 to 35 wt % chloride; and b) filtering the wash slurry and collecting: i) a filter cake having from at least 70 wt % of the chloride in the spent catalyst removed and having the noble metals retained, and ii) a wash filtrate. Also provided is a filter cake comprising a washed consolidated cake having 40 to 75 wt % solids, a cake moisture content from 25 to less than 60 wt %, 0.1 to 1.5 wt % total noble metals, and a residual chloride content of from zero to less than 4 wt %.
    Type: Application
    Filed: June 17, 2016
    Publication date: October 6, 2016
    Inventors: Rahul Shankar Bhaduri, Hye Kyung Cho Timken, Phillip Ian Cuspard
  • Publication number: 20160289574
    Abstract: Provided herein are processes for ethylene oligomerization in the presence of an ionic liquid catalyst and a co-catalyst to produce a hydrocarbon product comprising C10-C55 oligomers.
    Type: Application
    Filed: March 31, 2015
    Publication date: October 6, 2016
    Applicants: Chevron Oronite Company LLC, Chevron U.S.A. Inc.
    Inventors: Hye-Kyung Cho Timken, Bong-Kyu Chang, Curtis Bay Campbell, Andrew Michael Thomas, Mark Anthony Fernandez, Madeleine Sessions
  • Publication number: 20160264494
    Abstract: Systems and apparatus for ionic liquid catalyzed hydrocarbon conversion, such as alkylation, using vaporization to remove reaction heat from an ionic liquid reactor and to provide mixing therein, wherein hydrocarbon vapors are withdrawn from the ionic liquid reactor and the withdrawn hydrocarbon vapor is recovered by a hydrocarbon vapor recovery unit in fluid communication with the ionic liquid reactor for recycling condensed hydrocarbons to the ionic liquid reactor. Processes for ionic liquid catalyzed alkylation are also disclosed.
    Type: Application
    Filed: March 13, 2015
    Publication date: September 15, 2016
    Inventors: Donald Henry Mohr, Huping Luo, Clifford Michael Lowe, Hye Kyung Cho Timken, Krishniah Parimi, Michael John Girgis, Bong-Kyu Chang
  • Publication number: 20160263547
    Abstract: Systems and apparatus for ionic liquid catalyzed hydrocarbon conversion, such as alkylation, using vaporization to remove reaction heat from an ionic liquid reactor and to provide mixing therein, wherein hydrocarbon vapors are withdrawn from the ionic liquid reactor and the withdrawn hydrocarbon vapor is recovered by a hydrocarbon vapor recovery unit in fluid communication with the ionic liquid reactor for recycling condensed hydrocarbons to the ionic liquid reactor. Processes for ionic liquid catalyzed alkylation are also disclosed.
    Type: Application
    Filed: March 13, 2015
    Publication date: September 15, 2016
    Inventors: Donald Henry Mohr, Huping Luo, Clifford Michael Lowe, Hye Kyung Cho Timken, Krishniah Parimi, Michael John Girgis, Bong-Kyu Chang
  • Publication number: 20160242529
    Abstract: Provided herein is a cosmetic vessel including a discharge unit discharging cosmetics to an outside; and a discharge plate provided at one side of the discharge unit from which the cosmetics are discharged, including at least one discharge hole, wherein the discharge plate is provided with a discharge plate processed portion made of a material different from that of the discharge plate on at least a portion of at least one surface.
    Type: Application
    Filed: February 3, 2015
    Publication date: August 25, 2016
    Applicant: LG HOUSEHOLD & HEALTH CARE LTD.
    Inventors: Se Woong OH, Hyeon Jeong KIM, Hye Ryen KIM, Sang Wook PARK, Jae Hong JUNG, Kyungwon KIM, Ye Kyung CHO, Sung-Tae KIM, Guyong LEE, Sungsoo KANG, In Hwan ROH
  • Patent number: 9407895
    Abstract: A system for controlling a video is provided. The system includes a terminal which transmits a flush command to an external device to delete buffered data in a buffer of the external device when a search command for moving to a location of specific data of a video is generated while data of the video is streamed to the external device and which then transmits to the external device the specific data located in relation to the search command, and an external device which deletes the buffered data in the buffer when the flush command is received from the terminal while a video streamed from the terminal is reproduced and which buffers the specific data of the video received from the terminal in the buffer to be output.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: August 2, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: You-Kyung Cho, Soung-Kwan Kimn, Jong-Kyu Kim, Tae-Hyung Kim, Jung-Wook Chai
  • Patent number: 9388093
    Abstract: Systems for ionic liquid catalyzed hydrocarbon conversion comprise a reactor vessel, a mixing device in fluid communication with the reactor vessel, and at least one circulation loop in fluid communication with the reactor vessel and the mixing device. The mixing device may comprise an upper venturi, at least one feed injection component, and a lower venturi. Such systems may be used for ionic liquid catalyzed alkylation reactions. Processes for ionic liquid catalyzed hydrocarbon conversion are also disclosed.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: July 12, 2016
    Assignee: Chevron U.S.A. Inc.
    Inventors: Huping Luo, Moinuddin Ahmed, Krishniah Parimi, Bong Kyu Chang, Michael John Girgis, Donald Henry Mohr, Hye Kyung Cho Timken
  • Patent number: 9365427
    Abstract: A method for purifying carbon nanotubes (CNTs) includes heating the CNTs including metallic impurities and metallic oxide impurities; reducing the metallic oxide impurities by passing a reducing gas through the CNTs; removing the metallic impurities and the reduced metallic oxide impurities by passing a liquid halide through the CNTs using a carrier gas; and cooling the CNTs. Therefore, by simply passing liquid chloroform through CNTs using a carrier gas, a method for purifying CNTs can be provided so as to simply, economically, and effectively remove metallic impurities from the CNTs in a short time through one step. In addition, the purification effect can be further improved by removing the metallic oxide impurities as well as the metallic impurities through the reducing step. In addition, it is possible to improve the purification effect by further performing a step of removing a halogen or an acid-treatment purification step.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: June 14, 2016
    Assignee: INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIV
    Inventors: Nae Sung Lee, Jeung Choon Goak, Chang Jin Lim, Eun Kyung Cho
  • Patent number: 9355754
    Abstract: An electroconductive polyamide/polyphenylene ether resin composition and a molded product for vehicle manufactured using the same includes a base resin (a) including polyphenylene ether (a-1) and polyamide (a-2); an impact modifier (b); a compatibilizer (c); and an electroconductive filler (d). The electroconductive filler (d) includes aromatic compounds having molecular weights of about 120 to about 1,000 g/mol, wherein the aromatic compounds are byproducts generated when preparing the electroconductive filler (d).
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: May 31, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chang Min Hong, Doo Young Kim, Wonyoung Choi, Jung Hun Lee, Jin-Kyung Cho
  • Patent number: 9332991
    Abstract: Adhesive articles containing microtopography, such as microprotrusions, and a coating of adhesive glue, such an adhesive having known toxicity and/or tissue reactive functional groups are described herein. The articles described herein contain a substrate, a plurality of microfeatures, and an adhesive, such as an adhesive glue. The articles described herein exhibit a 90° pull off adhesion of at least about 1.5 N/cm2. The articles described herein can contain less adhesive than when the adhesive is used alone without microtopography and yet exhibit equivalent adhesive strength with little or no toxicity or other adverse side effects (e.g., exothermic reaction).
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: May 10, 2016
    Assignees: Massachusetts Institute of Technology, The Brigham and Women's Hospital, Inc.
    Inventors: Maria Jose M. N. Pereira, Woo-Kyung Cho, Robert S. Langer, Jeffrey M. Karp
  • Publication number: 20160115566
    Abstract: A process is provided for preparing a spent noble metal fixed-bed catalyst for precious metals recovery, comprising: a) adding the catalyst to a caustic solution to wash the spent catalyst and to make a wash slurry having an alkaline pH, wherein the spent catalyst has been in contact with chloroaluminate ionic liquid catalyst, and wherein the spent catalyst comprises from 5 to 35 wt % chloride; and b) filtering the wash slurry and collecting: i) a filter cake having from at least 70 wt % of the chloride in the spent catalyst removed and having the noble metals retained, and ii) a wash filtrate. Also provided is a filter cake comprising a washed consolidated cake having 40 to 75 wt % solids, a cake moisture content from 25 to less than 60 wt %, 0.1 to 1.5 wt % total noble metals, and a residual chloride content of from zero to less than 4 wt %.
    Type: Application
    Filed: October 22, 2014
    Publication date: April 28, 2016
    Applicant: Chevron U.S.A. Inc.
    Inventors: Rahul Shankar Bhaduri, Hye Kyung Cho Timken, Phillip Ian Cuspard
  • Publication number: 20160115567
    Abstract: This application provides a metallurgical extraction technique, comprising: a) re-pulping a feed filter cake to make a filter cake slurry; b) grinding the filter cake slurry; c) leaching the ground filter cake slurry in a hot alkaline cyanide solution to provide dissolved platinum group metals; d) liquid-solid separating of the dissolved platinum group metals; and e) recovering the dissolved platinum group metals by cementing the dissolved platinum group metals with a precipitating metal comprising an aluminum or a zinc; wherein the feed filter cake has the platinum group metals at a total amount from 0.1 to 1.5 wt % and a halide anion content from zero to less than 4 wt %. This application provides a process for platinum group metal recovery, comprising: converting a catalyst which was in contact with a water reactive ionic liquid catalyst into a non-water reactive filter cake and extracting the platinum group metals.
    Type: Application
    Filed: October 22, 2014
    Publication date: April 28, 2016
    Applicant: Chevron U.S.A. Inc.
    Inventors: Rahul Shankar Bhaduri, Hye Kyung Cho Timken
  • Patent number: 9302199
    Abstract: We provide processes, and process units for practicing the processes, comprising a. regenerating a used catalyst comprising an ionic liquid catalyst and a chloride, from an alkylation reactor, in a hydrogenation reactor to produce a regenerated catalyst effluent; b. separating at least a portion of the regenerated catalyst effluent into a gas fraction comprising a hydrogen gas and into a light hydrocarbon fraction comprising a hydrogen chloride; c. recycling at least a part of the gas fraction comprising the hydrogen gas to the hydrogenation reactor; and d. recovering at least an amount of the light hydrocarbon fraction comprising the hydrogen chloride and recycling the at least the amount of the light hydrocarbon fraction to the alkylation reactor. The alkylation process units comprise a hydrogenation reactor, a fractionation unit, and connections for transmitting the gas fraction to the hydrogenation reactor and for transmitting the light hydrocarbon fraction to the alkylation reactor.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: April 5, 2016
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Bong-Kyu Chang
  • Patent number: 9302200
    Abstract: We provide alkylation process units, one comprising: a) a hydrogenation reactor that produces a regenerated catalyst effluent; b) a fractionation unit that separates the effluent into gas and light hydrocarbon; c) a connection between the fractionation unit for transmitting the gas to the hydrogenation reactor; and d) a connection between the fractionation unit and an alkylation reactor to transmit the light hydrocarbon to the alkylation reactor.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: April 5, 2016
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hye Kyung Cho Timken, Bong-Kyu Chang
  • Patent number: D758416
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: June 7, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Min-kyung Cho
  • Patent number: D758438
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: June 7, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Kyung Cho, Jae-In Kim
  • Patent number: D759043
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: June 14, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Min-Kyung Cho
  • Patent number: D760291
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: June 28, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Kyung Cho, Ho Kim, Ho-Young Lee
  • Patent number: D760292
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: June 28, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Kyung Cho, Soo-Jung Bae, Mi-A Oh
  • Patent number: D768694
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: October 11, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gyu-Chual Kim, Min-Kyung Cho