Patents by Inventor Byung Chun

Byung Chun 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: 20190372115
    Abstract: A method for positive electrode active material for a secondary battery includes preparing a precursor by reacting a nickel raw material, a cobalt raw material and an M1 raw material; forming a first surface-treated layer including an oxide of Formula 2 below, on a surface of a core including a lithium composite metal oxide of Formula 1 below, by mixing the precursor with a lithium raw material and an M3 raw material, firing the resultant mixture; and forming a second surface-treated layer including a lithium compound of Formula 3 below, on the core with the first surface-treated layer formed thereon, LiaNi1?x?yCoxM1yM3zM2wO2 ??[Formula 1] LimM4O(m+n)/2 ??[Formula 2] LipM5qAr ??[Formula 3] wherein, in Formulae 1 to 3, A, M1 to M5, a, x, y, z, w, m, n, p, and q are the same as those defined in the specification.
    Type: Application
    Filed: August 15, 2019
    Publication date: December 5, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Ju Kyung Shin, Wang Mo Jung, Byung Chun Park, Ji Hoon Ryu, Sang Min Park, Sang Wook Lee
  • Patent number: 10453703
    Abstract: The disclosure is directed to a method to recover the gate oxide integrity yield of a silicon wafer after rapid thermal anneal in an ambient atmosphere comprising a nitrogen containing gas, such as NH3 or N2. Generally, rapid thermal anneals in an ambient atmosphere comprising a nitrogen containing gas, such as NH3 or N2 to thereby imprint an oxygen precipitate profile can degrade the GOI yield of a silicon wafer by exposing as-grown crystal defects (oxygen precipitate) and vacancies generated by the silicon nitride film. The present invention restores GOI yield by stripping the silicon nitride layer, which is followed by wafer oxidation, which is followed by stripping the silicon oxide layer.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: October 22, 2019
    Assignee: SunEdison Semiconductor Limited (UEN201334164H)
    Inventors: Young Jung Lee, Jae-Woo Ryu, Byung Chun Kim, Robert J. Falster, Soon Sung Park, Tae Hoon Kim, Jun Hwan Ji, Carissima Marie Hudson
  • Patent number: 10439216
    Abstract: The present invention provides a positive electrode active material for secondary battery and a secondary battery including the same. The positive electrode active material includes a core including a lithium composite metal oxide of Formula 1 below, a first surface-treated layer positioned on the surface of the core and including a lithium oxide of Formula 2 below, and a second surface treated layer positioned on the core or the first surface-treated layer and including a lithium compound of Formula 3. Thus, the present invention can improve capacity characteristics and output characteristics of a battery and also reduce the generation of gas, LiaNi1-x-yCoxM1yM3zM2wO2 ??[Formula 1] LimM4O(m+n)/2 ??[Formula 2] LipM5qAr ??[Formula 3] (in formulae 1 to 3, A, M1 to M5, a, x, y, z, w, m, n, p, and q are the same as those defined in the specification).
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: October 8, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Ju Kyung Shin, Wang Mo Jung, Byung Chun Park, Ji Hoon Ryu, Sang Min Park, Sang Wook Lee
  • Publication number: 20190300382
    Abstract: The present invention provides a positive electrode active material for a secondary battery, which includes a lithium transition metal oxide including nickel (Ni) and cobalt (Co), and at least one selected from the group consisting of aluminum (Al), manganese (Mn), and a combination thereof. The lithium transition metal oxide is characterized in that the content of nickel (Ni) in the total transition metal elements is 80 mol % or more, and the cation mixing ratio of Ni cations in a lithium layer in the lithium transition metal oxide structure is 1.1% or less.
    Type: Application
    Filed: December 19, 2017
    Publication date: October 3, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Ji Hye Kim, Byung Chun Park, So Ra Baek, Tae Gu Yoo, Wang Mo Jung
  • Publication number: 20190293489
    Abstract: A method for detecting a shipwrecked vessel and drown victims by using an aerial hyperspectral image, according to the present invention, comprises the steps of: (a) allowing an image reception unit to receive an observed aerial hyperspectral image, check whether the received aerial hyperspectral image is suitable for detection analysis, and extract observation information, and location information and a reflectance value for each pixel with respect to the detected shipwrecked vessel and drown victims; (b) allowing an image analysis unit to analyze spectral characteristic similarity between a spectral reflection value of a target object and an observed reflection value by using pre-constructed spectral library information and extract constituent materials and an occupation ratio for each pixel of the hyperspectral image, thereby classifying a detection result; and (c) allowing an image visualization unit to display the received hyperspectral image, locations of the detected shipwrecked vessel and drown victim
    Type: Application
    Filed: May 18, 2018
    Publication date: September 26, 2019
    Inventors: Sangwoo OH, Tae-Sung KIM, Won-Soo KANG, Moonjin LEE, Tae-Byung CHUN
  • Publication number: 20190288285
    Abstract: The present invention relates to a positive electrode active material for a lithium secondary battery which includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein a portion of nickel (Ni) sites of the lithium composite transition metal oxide is substituted with tungsten (W), and an amount of a lithium tungsten oxide remaining on surfaces of lithium composite transition metal oxide particles is 1,000 ppm or less.
    Type: Application
    Filed: February 28, 2018
    Publication date: September 19, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Ji Hye Kim, Byung Chun Park, So Ra Baek, Tae Gu Yoo, Wang Mo Jung
  • Patent number: 10418634
    Abstract: Disclosed are a cathode active material for lithium secondary batteries including lithium-containing metal oxide particles; a first surface treatment layer formed on the surfaces of the lithium-containing metal oxide particles and including at least one compound selected from the group consisting of fluorine-doped metal oxides and fluorine-doped metal hydroxides; and a second surface treatment layer formed on a surface of the first surface treatment layer and including a fluorine copolymer, and a method of manufacturing the same.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: September 17, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Byung Chun Park, Wang Mo Jung, Sang Seung Oh, Sungbin Park, Ji Hye Kim
  • Patent number: 10406557
    Abstract: A curing apparatus and a curing method are provided. The curing apparatus comprises: a chamber, configured for accommodating a substrate provided with a polyimide adhesive; an air extracting unit, configured for evacuating the chamber; and a heating unit, configured for performing a first heating on the substrate in the case that a first predetermined pressure is reached in the chamber during a evacuating process of the air extracting unit so as to remove organic gases from the polyimide adhesive, and performing a second heating on the substrate after the first heating so as to cure the polyimide adhesive.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: September 10, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Li Xiong, Zhong Lu, Wenxuan Zhang, Zhenrui Fan, Yu Zhang, Yu Zhang, Yuanjiang Yang, Donghua Jiang, Byung Chun Lee, Shengzhou Gao
  • Publication number: 20190267251
    Abstract: The disclosure is directed to a method to recover the gate oxide integrity yield of a silicon wafer after rapid thermal anneal in an ambient atmosphere comprising a nitrogen containing gas, such as NH3 or N2. Generally, rapid thermal anneals in an ambient atmosphere comprising a nitrogen containing gas, such as NH3 or N2 to thereby imprint an oxygen precipitate profile can degrade the GOI yield of a silicon wafer by exposing as-grown crystal defects (oxygen precipitate) and vacancies generated by the silicon nitride film. The present invention restores GOI yield by stripping the silicon nitride layer, which is followed by wafer oxidation, which is followed by stripping the silicon oxide layer.
    Type: Application
    Filed: May 9, 2019
    Publication date: August 29, 2019
    Inventors: Young Jung Lee, Jae-Woo Ryu, Byung Chun Kim, Robert J. Falster, Soon Sung Park, Tae Hoon Kim, Jun Hwan Ji, Carissima Marie Hudson
  • Publication number: 20190252679
    Abstract: Disclosed are a precursor for preparation of a lithium composite transition metal oxide, a method for preparing the same and a lithium composite transition metal oxide obtained from the same. More particularly, the transition metal precursor which has a composition represented by Formula 1 below and is prepared in an aqueous transition metal solution, mixed with a transition metal-containing salt, including an alkaline material, the method for preparing the same and the lithium composite transition metal oxide obtained from the same are disclosed. MnaMb(OH1-x)2-yAy ??(1) wherein M is at least one selected form the group consisting of Ni, Ti, Co, Al, Cu, Fe, Mg, B, Cr, Zr, Zn and Period II transition metals; A is at least one selected form the group consisting of anions of PO4, BO3, CO3, F and NO3, and 0.5?a?1.0; 0?b?0.5; a+b=1; 0<x<1.0; and 0?y?0.02.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 15, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Sang Min Park, Sun Sik Shin, Byung Chun Park, Hye Lim Jeon, Bo Ram Lee
  • Patent number: 10367197
    Abstract: The present invention relates to a positive active material for a lithium battery, a method of preparing the same, and a lithium battery including the same. More particularly, the present invention relates to a positive active material having excellent high-capacity and thermal stability, a method of preparing the same, and a lithium battery including the same.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: July 30, 2019
    Assignee: Industry-University Cooperation Foundation Hanyang University
    Inventors: Yang-Kook Sun, Byung-Chun Park
  • Patent number: 10355275
    Abstract: Disclosed are a precursor for preparation of a lithium composite transition metal oxide, a method for preparing the same and a lithium composite transition metal oxide obtained from the same. More particularly, the transition metal precursor which has a composition represented by Formula 1 below and is prepared in an aqueous transition metal solution, mixed with a transition metal-containing salt, including an alkaline material, the method for preparing the same and the lithium composite transition metal oxide obtained from the same are disclosed. MnaMb(OH1-x)2-yAy??(1) wherein M is at least one selected form the group consisting of Ni, Ti, Co, Al, Cu, Fe, Mg, B, Cr, Zr, Zn and Period II transition metals; A is at least one selected form the group consisting of anions of PO4, BO3, CO3, F and NO3, and 0.5?a?1.0; 0?b?0.5; a+b=1; 0<x<1.0; and 0?y?0.02.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: July 16, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Sang Min Park, Sun Sik Shin, Byung Chun Park, Hye Lim Jeon, Bo Ram Lee
  • Patent number: 10347913
    Abstract: The present invention provides a method for preparing a core-shell structured particle, the method using a continuous Couette-Taylor crystallizer in which a core reactant inlet, a shell reactant inlet, and a product outlet are sequentially formed on an outer cylinder along a flow direction of a fluid flowing in a Couette-Taylor fluid passage between the outer cylinder and an inner cylinder, wherein a core particle is primarily formed in the fluid passage by a core reactant supplied through the core reactant inlet; a shell layer is formed on a surface of the core particle to cover the core particle by a shell reactant supplied through the shell reactant inlet; and a core-shell structured particle in which the shell layer is formed on the circumference of the core particle, is discharged to the outside through the product outlet.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: July 9, 2019
    Assignees: LG Chem, Ltd., University-Industry Cooperation Group of Kyung Hee University
    Inventors: Woo Sik Kim, Khuong Dien Thai, Byung Chun Park, Seong Hoon Kang, Wang Mo Jung, Hong Kyu Park
  • Publication number: 20190194891
    Abstract: A shovel apparatus includes a shovel body, the shovel body including a left side panel portion, a right side panel portion, a bottom panel portion, and a rear panel portion, to define a shoveling area in the shovel body; and a pair of opposing wheels rotatably coupled to the left and right side panel portions of the shovel body, one to each side of the left and right side panel portions, wherein the pair of wheels are separately provided and not being connected to each other by a connecting shaft, and a handle shaft member extends in a longitudinal direction.
    Type: Application
    Filed: December 27, 2017
    Publication date: June 27, 2019
    Inventor: Jung Byung Chun
  • Publication number: 20190165362
    Abstract: The present invention relates to a positive electrode active material for a secondary battery, which includes a core including a lithium composite metal oxide, and a surface treatment layer which is disposed on the core and includes an amorphous oxide containing a lithium (Li) oxide, a boron (B) oxide, and an aluminum (Al) oxide, wherein an amount of a lithium by-product present on a surface of the positive electrode active material is less than 0.55 wt % based on a total weight of the positive electrode active material, and a method of preparing the same.
    Type: Application
    Filed: February 2, 2018
    Publication date: May 30, 2019
    Applicant: LG Chem, Ltd.
    Inventors: So Ra Baek, Ji Hye Kim, Tae Gu Yoo, Wang Mo Jung, Byung Chun Park
  • Publication number: 20190157658
    Abstract: The present invention provides a method of preparing a positive electrode active material for a secondary battery including preparing a first transition metal-containing solution including a nickel raw material, a cobalt raw material, and a manganese raw material and a second transition metal-containing solution including a nickel raw material, a cobalt raw material, and a manganese raw material in a concentration different from that of the first transition metal-containing solution; preparing a reaction solution, in which nickel manganese cobalt-based composite metal hydroxide particles are formed, by adding an ammonium cation-containing complexing agent and a basic compound as well as the second transition metal-containing solution to the first transition metal-containing solution and performing a co-precipitation reaction in a pH range of 11 to 13.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 23, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Sang Wook Lee, Wang Mo Jung, Seong Hoon Kang, Byung Chun Park, Ju Kyung Shin, Sang Min Park
  • Publication number: 20190136249
    Abstract: Provided herein are methods and systems for altering the genome of an organelle. In some embodiments, the method comprises introducing into an organelle a recombinant DNA construct comprising a first polynucleotide encoding at least one guide RNA and a second polynucleotide encoding a polynucleotide guided polypeptide; and growing a cell comprising the organelle under conditions in which the first polynucleotide and the second polynucleotide are each expressed.
    Type: Application
    Filed: August 22, 2018
    Publication date: May 9, 2019
    Inventors: Hajime SAKAI, Byung-Chun YOO, Emil Meyer OROZCO, JR., Roger WYSE, Ganesh KISHORE, Jay KEASLING, Narendra Singh YADAV
  • Publication number: 20190124403
    Abstract: Methods and systems are described for generating integrated intelligent content overlays for media content streams. A server computing device receives a video content stream from a video data source. The server extracts a corpus of machine-recognizable text from the video content stream, the corpus of machine-recognizable text corresponding to at least one of audio or closed captioning text associated with the video content stream. The server identifies one or more entity names contained in the corpus of machine-recognizable text. The server determines a set of content keywords associated with each of the identified entity names. The server generates a content overlay for the video content stream comprising one or more layers that include graphical content relating to at least one of the sets of content keywords. The server integrates the content overlay into the video content stream to generate a customized video content stream.
    Type: Application
    Filed: October 18, 2018
    Publication date: April 25, 2019
    Inventors: David Favicchio, Christopher Lackey, Veronica Grigoras, Philipp Hanes, Byung Chun, Chad Iverson
  • Patent number: 10243201
    Abstract: The present invention provides a positive electrode active material for a secondary battery, which includes a core, a shell disposed to surround the core, and a buffer layer which is disposed between the core and the shell and includes pores and a three-dimensional network structure connecting the core and the shell, wherein, the core, the shell, and the three-dimensional network structure of the buffer layer each independently include a lithium nickel manganese cobalt-based composite metal oxide and at least one metallic element of the nickel, the manganese, and the cobalt has a concentration gradient that gradually changes in any one region of the core, the shell, and the entire positive electrode active material.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: March 26, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Sang Wook Lee, Wang Mo Jung, Seong Hoon Kang, Byung Chun Park, Ju Kyung Shin, Sang Min Park
  • Patent number: D846025
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: April 16, 2019
    Inventor: Jung Byung Chun