Patents by Inventor Joo Chung

Joo Chung 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: 9583787
    Abstract: An additive, the additive being for an electrolyte for a lithium secondary battery and represented by Chemical Formula 1: R1 to R4 each independently being hydrogen or a non-polar hydrocarbon group, is disclosed. An electrolyte, the electrolyte being for a lithium secondary battery and including: a non-aqueous organic solvent; a lithium salt; and the additive is also disclosed. A lithium secondary battery including: a positive electrode; a negative electrode facing the positive electrode; and a separator between the positive electrode and the negative electrode, the separator being impregnated with an electrolyte including the additive, is also disclosed.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: February 28, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: In-Haeng Cho, Woo-Cheol Shin, Sang-Il Han, Sang-Hoon Kim, Byung-Joo Chung, Duck-Hyun Kim, Myung-Hwan Jeong, Jung-Yi Yu, Jung-Hyun Nam, Seung-Tae Lee, Tae-Hyun Bae, Mi-Hyun Lee, Eon-Mi Lee, Ha-Rim Lee, Moon-Sung Kim, E-Rang Cho, Dong-Myung Choi, Pavel Alexandrovich Shatunov, Alexey Tereshchenko, Denis Chernyshov, Makhmut Khasanov, Vladimir Egorov
  • Patent number: 9553292
    Abstract: In an aspect, a rechargeable lithium battery that includes a positive electrode; negative electrode; a separator interposed between the positive electrode and the negative electrode and including a porous substrate and a coating layer formed on at least one side of the porous substrate; and an electrolyte including a lithium salt, a non-aqueous organic solvent, and an additive is provided.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: January 24, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Moon-Sung Kim, Woo-Cheol Shin, Sang-Il Han, Sang-Hoon Kim, Byung-Joo Chung, Duck-Hyun Kim, Myung-Hwan Jeong, Jung-Yi Yu, Seung-Tae Lee, Tae-Hyun Bae, Mi-Hyun Lee, Eon-Mi Lee, Ha-Rim Lee, In-Haeng Cho, E-Rang Cho, Dong-Myung Choi, Vladimir Egorov, Pavel Alexandrovich Shatunov, Alexey Tereshchenko, Denis Chernyshov, Makhmut Khasanov, Jung-Hyun Nam
  • Patent number: 9437901
    Abstract: An electrolyte additive represented by the following Chemical Formula 1, an electrolyte, and a rechargeable lithium battery are disclosed: In Chemical Formula 1, R1 to R3 and L1 to L3 are the same as defined in the detailed description.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: September 6, 2016
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Duck-Hyun Kim, Woo-Cheol Shin, Sang-Il Han, Sang-Hoon Kim, Byung-Joo Chung, Myung-Hwan Jeong, Jung-Yi Yu, Jung-Hyun Nam, Seung-Tae Lee, Tae-Hyun Bae, Mi-Hyun Lee, Eon-Mi Lee, Ha-Rim Lee, Moon-Sung Kim, In-Haeng Cho, E-Rang Cho, Dong-Myung Choi, Vladimir Egorov, Makhmut Khasanov, Pavel Shatunov, Alexey Tereshchenko, Denis Chernyshov
  • Patent number: 9413012
    Abstract: A binder for a rechargeable lithium battery includes a copolymer having a weight average molecular weight of about 10,000 to about 500,000 and including a repeating unit represented by Chemical Formula X and a repeating unit represented by Chemical Formula Y-1: The binder may be used in preparing an electrode for a rechargeable lithium battery and a rechargeable lithium battery including the electrode exhibits improved stability, rate capability, and cycle-life.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: August 9, 2016
    Assignee: Aekyung Chemical Co., Ltd.
    Inventors: Byung-Joo Chung, Eon-Mi Lee, Nam-Seon Kim, Yang-Soo Kim, Kwang-Sik Choi
  • Patent number: 9406937
    Abstract: A binder composition for a rechargeable lithium battery includes a semi-interpenetrating polymer network (semi-IPN) including a copolymer including a repeating unit represented by the following Chemical Formula 1 and a repeating unit represented by the following Chemical Formula 2 and polyacrylamide, and polyalkylene glycol. In Chemical Formula 1, R1 and R2 are the same or different and are independently selected from hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, and R3 and R4 are an alkali metal. In Chemical Formula 2, R5 to R8 are the same or different, and are independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, or a substituted or unsubstituted C1 to C30 alkoxy group.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: August 2, 2016
    Assignee: AEKYUNG CHEMICAL CO., LTD.
    Inventors: Byung-Joo Chung, Eon-Mi Lee, Seung-Uk Kwon, Jae-Hyuk Kim, Soon-Sung Suh, Chang-Ui Jeong, Ha-Na Yoo, Nam-Seon Kim, Yang-Soo Kim, Kwang-Sik Choi
  • Patent number: 9389223
    Abstract: The invention provides methods for quickly and easily screening mixed cell samples for a pharmacodynamic effect to a drug or test agent.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: July 12, 2016
    Assignee: The United States of America, as represented by the Secretary, Department of Health & Human Services
    Inventors: Jane Trepel, Eun Joo Chung
  • Patent number: 9368797
    Abstract: A binder composition for a rechargeable lithium battery includes a semi-interpenetrating polymer network (semi-IPN) including a copolymer including a repeating unit represented by the following Chemical Formula 1 and a repeating unit represented by the following Chemical Formula 2, and polyacrylamide. In Chemical Formula 1, R1 and R2 are the same or different and are independently selected from hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, and R3 and R4 are an alkali metal. In Chemical Formula 2, R5 to R8 are the same or different, and are independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, or a substituted or unsubstituted C1 to C30 alkoxy group.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: June 14, 2016
    Assignees: SAMSUNG SDI CO., LTD., AEKYUNG CHEMICAL CO., LTD.
    Inventors: Byung-Joo Chung, Eon-Mi Lee, Seung-Uk Kwon, Jae-Hyuk Kim, Soon-Sung Suh, Chang-Ui Jeong, Ha-Na Yoo, Nam-Seon Kim, Yang-Soo Kim, Kwang-Sik Choi
  • Publication number: 20160036056
    Abstract: A binder composition for a rechargeable lithium battery includes: an interpenetrating polymer network (IPN) structure including a cyclic polymer including a structural unit represented by Chemical Formula 1 or a structural unit represented by Chemical Formula 2, and polyacrylamide. A method of preparing the same, and an electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are also disclosed. In Chemical Formulae 1 and 2, R1 to R3, R11 to R16, and n and m are the same as defined in the detailed description.
    Type: Application
    Filed: July 23, 2015
    Publication date: February 4, 2016
    Inventors: Byung-Joo Chung, Yeon-Hee Yoon, Nam-Seon Kim, Kwang-Sik Choi, Soo-Jung Kim
  • Patent number: 9236609
    Abstract: A positive active material for a rechargeable lithium battery includes a nickel-based composite oxide represented by the following Chemical Formula 1, wherein the nickel-based composite oxide includes an over lithiated oxide and non-continuous portions of a lithium nickel cobalt manganese oxide on a surface of the over lithiated oxide. LiaNibCocMndO2??Chemical Formula 1 where 1<a<1.6, 0.1<b<0.7, 0.1<c<0.4, and 0.1<d<0.7.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: January 12, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Han-Eol Park, Byung-Joo Chung, Chang-Wook Kim, Chun-Gyoo Lee, Jong-Seo Choi, Yoon-Chang Kim
  • Patent number: 9112213
    Abstract: An active material for a secondary battery, a secondary battery including the active material, and a method of preparing an active material, the active material including a silicon-based core; and an aluminum-based coating layer on at least a part of the silicon-based core.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: August 18, 2015
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Byung-Joo Chung, Eon-Mi Lee, Woo-Cheol Shin, Tae-Sik Kim, Jong-Ki Lee
  • Patent number: 9023495
    Abstract: A unit thermionic electric converter. The unit thermionic electric converter includes a case having a first end portion and a second end portion; a working fluid disposed inside the case; a solid electrolyte dividing the inside of the case; a first electrode disposed on a surface of the solid electrolyte; and a second electrode disposed on another surface of the solid electrolyte; wherein the first end portion and the second end portion are alternately heated by a heat source.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: May 5, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ju-Yong Kim, Byung-Joo Chung, Tae-Yoon Kim
  • Publication number: 20150118556
    Abstract: A binder composition for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery including the same. The binder composition includes lithium polyacrylate and a solvent and has a viscosity of about 500 cps to about 5000 cps.
    Type: Application
    Filed: August 29, 2014
    Publication date: April 30, 2015
    Inventors: Chang-Ui Jeong, Byung-Joo Chung, Nam-Seon Kim, Yang-soo Kim, Kwang-Sik Choi
  • Patent number: 8958582
    Abstract: Disclosed are an apparatus and method of surround wave field synthesizing a multi-channel signal excluding sound image localization information. A wave field synthesis and reproduction apparatus may include a signal classification unit to classify an inputted multi-channel signal into a primary signal and an ambient signal, a sound image localization information estimation unit to estimate sound image localization information of the primary signal and sound image localization information of the ambient signal, and a rendering unit to render the primary signal and the ambient signal based on the sound image localization information of the primary signal, the sound image localization information of the ambient signal, and listener environment information.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: February 17, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae Hyoun Yoo, Hyun Joo Chung, Sang Bae Chon, Jeong Il Seo, Kyeong Ok Kang, Koang Mo Sung
  • Patent number: 8951679
    Abstract: A beta alumina solid electrolyte (BASE) and a method of preparing the same are provided. When the method is used, evaporation of sodium is suppressed and thus a beta alumina solid electrolyte having a high density, a low porosity, and a composition that is near a desired (target) composition is produced.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: February 10, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Byung-Joo Chung
  • Patent number: 8940196
    Abstract: A silicon-based shape memory alloy negative active material includes a silicon-based material precipitated on a Ni2Mn1-XZX shape memory alloy basic material. In the silicon-based shape memory alloy negative active material, X satisfies the relationship 0?X?1 and Z is one of Al, Ga, In, Sn, or Sb.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: January 27, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Byung-Joo Chung, Chun-Gyoo Lee
  • Publication number: 20150017531
    Abstract: A binder composition for a rechargeable lithium battery includes a polyacrylic acid compound substituted with a halogen ion and a trivalent or quadrivalent metal ion.
    Type: Application
    Filed: May 15, 2014
    Publication date: January 15, 2015
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Byung-Joo CHUNG, Eon-Mi LEE
  • Publication number: 20150010810
    Abstract: An additive, the additive being for an electrolyte for a lithium secondary battery and represented by Chemical Formula 1: R1 to R4 each independently being hydrogen or a non-polar hydrocarbon group, is disclosed. An electrolyte, the electrolyte being for a lithium secondary battery and including: a non-aqueous organic solvent; a lithium salt; and the additive is also disclosed. A lithium secondary battery including: a positive electrode; a negative electrode facing the positive electrode; and a separator between the positive electrode and the negative electrode, the separator being impregnated with an electrolyte including the additive, is also disclosed.
    Type: Application
    Filed: May 19, 2014
    Publication date: January 8, 2015
    Applicant: Samsung SDI Co., Ltd.
    Inventors: In-Haeng Cho, Woo-Cheol Shin, Sang-Il Han, Sang-Hoon Kim, Byung-Joo Chung, Duck-Hyun Kim, Myung-Hwan Jeong, Jung-Yi Yu, Jung-Hyun Nam, Seung-Tae Lee, Tae-Hyun Bae, Mi-Hyun Lee, Eon-Mi Lee, Ha-Rim Lee, Moon-Sung Kim, E-Rang Cho, Dong-Myung Choi, Pavel Alexandrovich Shatunov, Alexey Tereshchenko, Denis Chernyshov, Makhmut Khasanov, Vladimir Egorov
  • Publication number: 20150010816
    Abstract: A binder composition for a rechargeable lithium battery includes a semi-interpenetrating polymer network (semi-IPN) including a copolymer including a repeating unit represented by the following Chemical Formula 1 and a repeating unit represented by the following Chemical Formula 2 and polyacrylamide, and polyalkylene glycol. In Chemical Formula 1, R1 and R2 are the same or different and are independently selected from hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, and R3 and R4 are an alkali metal. In Chemical Formula 2, R5 to R8 are the same or different, and are independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, or a substituted or unsubstituted C1 to C30 alkoxy group.
    Type: Application
    Filed: December 23, 2013
    Publication date: January 8, 2015
    Applicants: AEKYUNG CHEMICAL CO., LTD, SAMSUNG SDI CO., LTD.
    Inventors: Byung-Joo CHUNG, Eon-Mi LEE, Seung-Uk KWON, Jae-Hyuk KIM, Soon-Sung SUH, Chang-Ui JEONG, Ha-Na YOO, Nam-Seon KIM, Yang-Soo KIM, Kwang-Sik CHOI
  • Publication number: 20150010815
    Abstract: A binder composition for a rechargeable lithium battery includes a semi-interpenetrating polymer network (semi-IPN) including a copolymer including a repeating unit represented by the following Chemical Formula 1 and a repeating unit represented by the following Chemical Formula 2, and polyacrylamide. In Chemical Formula 1, R1 and R2 are the same or different and are independently selected from hydrogen, or a substituted or unsubstituted C1 to C10 alkyl group, and R3 and R4 are an alkali metal. In Chemical Formula 2, R5 to R8 are the same or different, and are independently hydrogen, a substituted or unsubstituted C1 to C30 alkyl group, a substituted or unsubstituted C6 to C30 aryl group, or a substituted or unsubstituted C1 to C30 alkoxy group.
    Type: Application
    Filed: December 23, 2013
    Publication date: January 8, 2015
    Applicants: Aekyung Chemical Co., Ltd., SAMSUNG SDI CO., LTD.
    Inventors: Byung-Joo CHUNG, Eon-Mi LEE, Seung-Uk KWON, Jae-Hyuk KIM, Soon-Sung SUH, Chang-Ui JEONG, Ha-Na YOO, Nam-Seon KIM, Yang-Soo KIM, Kwang-Sik CHOI
  • Publication number: 20140374676
    Abstract: The present invention relates to a coloring resin composition exhibiting pleochroism comprising 100 parts by weight of a transparent thermoplastic resin (A); 0.01 to 0.03 parts by weight of a dye for coloring a resin (B) which is one selected from the group consisting of an azo-based dye (b1), an anthraquinone-based dye (b2), and a methine dye (b3); and 0.1 to 0.3 parts by weight of a functional black dye (C) obtained by mixing an anthraquinone-based dye (c1) and a perinone-based dye (c2). A resin molded article manufactured by the coloring resin composition exhibiting pleochroism of the present invention is characterized by exhibiting different colors of light according to thicknesses although the resin molded article is irradiated with light sources in a single wavelength.
    Type: Application
    Filed: August 3, 2012
    Publication date: December 25, 2014
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Hyoung Joo Chung, Jae Kyung Kim, Eun Ju Song, Young Bae Lee