Patents by Inventor Mi Rim Lee

Mi Rim 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: 20200113962
    Abstract: The present disclosure relates to a composition for preventing, alleviating or treating stress diseases, containing a Platycodon grandiflorum extract as an active ingredient, and, more specifically, to a food composition for preventing or alleviating stress diseases or a pharmaceutical composition for preventing and treating stress diseases, both of which contain a Platycodon grandiflorum extract and a Citrus aurantium extract as active ingredients. A method of the present disclosure can be used for the preparation of an agent for treating depression and anxiety, which are stress diseases, with few side effects because of the use of a natural material, and a health functional food having effects of alleviating depression, anxiety and fatigue, which are stress diseases.
    Type: Application
    Filed: April 18, 2018
    Publication date: April 16, 2020
    Applicant: SUNG kyun BIOTECH CO.. LTD,
    Inventors: Mi Rim JIN, Do Heon LEE, Sun Yeou KIM
  • Patent number: 10593930
    Abstract: Disclosed is an electrode active material for a lithium secondary battery including a first material including a carbon material, a second material of a nanostructure formed on the first material, the second material including at least one selected from a metal and a metalloid capable of reversibly alloying with lithium, and a third material present on a surface of at least one of the first material and the second material to control a side reaction with an electrolyte solution, an electrode including the electrode active material, and a lithium secondary battery having the electrode.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: March 17, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Yong-Ju Lee, Je-Young Kim, Mi-Rim Lee, Byung-Hun Oh, Seung-Youn Choi
  • Patent number: 10468723
    Abstract: An electrolyte includes an organic solvent and a cyclic ester compound that is substituted with a sulfonate group.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: November 5, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hyun Bong Choi, Ae Ran Kim, Mi Young Son, Woo Cheol Shin, Myung Heui Woo, Seung Tae Lee, Ha rim Lee
  • Patent number: 10428055
    Abstract: The present invention relates to a substituted piperidines represented by following Chemical Formula 1, which have a GPR119 agonistic activity, a method for preparing the same, and a pharmaceutical composition including the same: wherein A, B, and X are defined therein.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: October 1, 2019
    Assignee: DONG-A ST CO., LTD.
    Inventors: Jae Sung Yang, Gye Rim Baek, Yoon Jung Kim, Chi Young Ahn, Jae Young Lee, Il Hoon Jung, Mi Kyung Kim, So Mi Kang, Hyo Ju Lee, Yu Na Chae, Ye Hwang Cheong, Tae Hyoung Kim, Eun Kyoung Yang, Moon Ho Son, Chang Yell Shin
  • Publication number: 20190241844
    Abstract: A cleaning composition, a cleaning apparatus, and a method of fabricating a semiconductor device, the cleaning composition including a surfactant; deionized water; and an organic compound, wherein the surfactant is included in the cleaning composition in a concentration of about 0.28M to about 0.39 M or a mole fraction of about 0.01 to about 0.017, and wherein the organic compound is included in the cleaning composition in a concentration of about 7.1 M to about 7.5 M or a mole fraction of about 0.27 to about 0.035.
    Type: Application
    Filed: January 17, 2019
    Publication date: August 8, 2019
    Inventors: Mi Hyun PARK, Jung-Min OH, Young-Hoo KIM, Hyo San LEE, Tae Keun KIM, Ye Rim YEON, Hae Rim OH, Ji Soo JEONG, Min Hee CHO
  • Patent number: 10351592
    Abstract: The present invention relates to a method for separating antibody isoforms using cation exchange chromatography and, more specifically, to a method for separating and purifying several isoforms, which are generated during an antibody production procedure, using a washing buffer for cation exchange chromatography.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: July 16, 2019
    Assignee: CELLTRION, INC.
    Inventors: Dong Woo Lee, Mi Na Song, Byoung Oh Kwon, Ki Sung Kwon, Dong Rim Yeom, Yeon Jung Kim
  • Patent number: 10276864
    Abstract: The anode active material of the present invention comprises silicon-based particles obtained from at least one of silicon, a silicon oxide and a silicon alloy, and the silicon-based particles have a faceted shape, thereby providing high capacity and good life characteristics without causing any deterioration which has been generated in the use of conventional silicon-based particles, and eventually providing a lithium secondary battery having such characteristics.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: April 30, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Yong-Ju Lee, Yoon-Ah Kang, Je-Young Kim, Seung-Youn Choi, Mi-Rim Lee, Hye-Ran Jung, Jung-Woo Yoo
  • Patent number: 10205164
    Abstract: Provided are a porous silicon-based anode active material including porous SiOx particles (0?x<2) having surfaces coated with an oxide layer, a method of preparing the same, and a lithium secondary battery including the porous silicon-based anode active material. Since the anode active material includes an oxide layer formed on the porous SiOx particles (0?x<2), a reactivity between the anode active material and an electrolyte solution may be reduced and, as a result, an electrical short circuit in an electrode may be minimized. Also, since a plurality of pores is included in surfaces or the surfaces and inside of the SiOx particles, a thickness change rate of the electrode generated during charge and discharge of a secondary battery may be reduced and lifetime characteristics may be improved.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: February 12, 2019
    Assignees: LG Chem Ltd., SJ Materials Co., Ltd.
    Inventors: Mi Rim Lee, Jung Woo Yoo, Eun Kyung Kim, Yong Ju Lee, Han Ho Lee, Ji Hyun Yoon, Byoung Man Bang, Chang Rae Lee, Il Kyo Jeong, Mi Kyeong Lee
  • Patent number: 10199640
    Abstract: Alloy particles for negative electrode active material are proposed, which can impart anti-oxidation property to Si-containing alloy particles, and suppress oxidation of the negative electrode active material due to electrolyte at a considerably high level. A negative electrode material of secondary battery is achieved by a negative electrode material of secondary battery which is capable of intercalating and de-intercalating lithium and which consists of alloy particles including a silicon phase, a metal phase and bismuth, in which a crystallite size of the silicon phase is 10 nm or smaller, and the metal phase includes at least one kind of metal alloying with silicon but not with lithium, and the negative electrode material includes primary particles formed at least by the silicon and the metals.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: February 5, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Keiko Matsubara, Yoshiyuki Igarashi, Mi-Rim Lee, Hye-Ran Jung, Yong-Ju Lee
  • Patent number: 10153484
    Abstract: Provided are a porous silicon-based anode active material including a core part including silicon (Si) and MxSiy, and a shell part including Si and a plurality of pores on the core part, wherein, in the MxSiy, M is at least one element selected from the group consisting of Group 2A, 3A, and 4A elements and transition metals, 1?x?4, and 1?y?4, and a method of preparing the porous silicon-based anode active material. According to an embodiment of the present invention, capacity characteristics and lifetime characteristic of a lithium secondary battery may be improved by minimizing the volume expansion of an anode active material during charge and discharge.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: December 11, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Yong Ju Lee, Jun Sik Ham, Sung Man Lee, Rae Hwan Jo, Eun Kyung Kim, Je Young Kim, Hong Kyu Park, Jung Woo Yoo, Mi Rim Lee
  • Patent number: 9991509
    Abstract: Provided are an anode active material including a porous silicon oxide-carbon material composite which includes a porous silicon oxide including pores and a line-type carbon material coated on a surface, in the pores, or on the surface and in the pores of the porous silicon oxide, and a method of preparing the anode active material. Since the silicon oxide of the anode active material according to an embodiment of the present invention may include the plurality of pores, resistance to the mechanical stress due to a volume change may be improved. Also, since the line-type carbon material is bonded to the inside of the pores, conductivity may not be decreased even in the case in which internal cracks occur in the porous silicon oxide and lifetime characteristics may be improved.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: June 5, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Jung Woo Yoo, Je Young Kim, Yong Ju Lee, Seung Youn Choi, Yoon Ah Kang, Mi Rim Lee, Hye Ran Jung
  • Patent number: 9947922
    Abstract: Provided are a porous silicon-based particle including a silicon (Si) or SiOx(0<x<2) particle, wherein the particle includes a plurality of nonlinear pores, and the nonlinear pores are formed as open pores in a surface of the particle, and a method of preparing the porous silicon-based particles. Porous silicon-based particles according to an embodiment of the present invention may be more easily dispersed in an anode active material slurry, may minimize side reactions with an electrolyte, and may reduce volume expansion during charge and discharge. Also, according to an embodiment of the present invention, the shape, form, and size of pores formed in the porous silicon-based particle may be controlled by adjusting the type of a metal catalyst, the concentration of the catalyst, and etching time.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: April 17, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Jung Woo Yoo, Mi Rim Lee, Yong Ju Lee, Eun Kyung Kim, Han Ho Lee, Ji Hyun Yoon, Byoung Man Bang, Chang Rae Lee, Il Kyo Jeong, Mi Kyeong Lee
  • Patent number: 9879344
    Abstract: Disclosed herein is an electrode active material for a secondary battery, and more particularly to an electrode active material comprising a porous silicon oxide-based composite and the method for preparing a porous silicon oxide-based composite.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: January 30, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Yong Ju Lee, Yoon Ah Kang, Mi Rim Lee, Jung Woo Yoo, Je Young Kim
  • Patent number: 9843034
    Abstract: Provided are a porous silicon-based anode active material including crystalline silicon (Si) particles, and a plurality of pores on surfaces, or the surfaces and inside of the crystalline silicon particles, wherein at least one plane of crystal planes of at least a portion of the plurality of pores includes a (100) plane, and a method of preparing the porous silicon-based anode active material. Since a porous silicon-based anode active material of the present invention may allow volume expansion, which is occurred during charge and discharge of a lithium secondary battery, to be concentrated on pores instead of the outside of the anode active material, the porous silicon-based anode active material may improve life characteristics of the lithium secondary battery by efficiently controlling the volume expansion.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: December 12, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Yong Ju Lee, Mi Rim Lee, Jung Woo Yoo, Je Young Kim
  • Patent number: 9780357
    Abstract: Disclosed herein is a silicon-based anode active material, comprising a silicon phase, a SiOx (0<x<2) phase and a carbon dioxide phase. Also disclosed is a secondary battery, which comprises a cathode comprising a cathode active material, an anode active material comprising an anode active material, and a separator, wherein the anode active material comprises a silicon phase, an SiOx (0<x<2) phase and a silicon dioxide phase.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: October 3, 2017
    Assignees: LG Chem, Ltd., UNIST (Ulsan National Institute of Science and Technology)
    Inventors: Yong Ju Lee, Soo Jin Park, Hye Ran Jung, Jung In Lee, Je Young Kim, Mi Rim Lee, Jae Phil Cho
  • Patent number: 9666859
    Abstract: Provided is an anode including an anode active material including SiOx (0<x?1) and a carbon material having a surface coated with amorphous carbon, wherein a crystal orientation ratio is in a range of 0.07 to 0.17. A lithium secondary battery including the anode of the present invention may have improved life characteristics, low thickness change rate, and improved initial discharge capacity.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: May 30, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Hye Ran Jung, Seung Youn Choi, Yong Ju Lee, Mi Rim Lee, Je Young Kim
  • Patent number: 9627681
    Abstract: The present invention relates to a silicon-based composite including a silicon oxide which is coated thereon with carbon and bonded therein to lithium. The present invention also relates to a method of producing a silicon-based composite, comprising coating a surface of silicon oxide with carbon, mixing the silicon oxide coated with carbon with lithium oxide, and heat-treating a mixture of the silicon oxide coated with carbon and the lithium oxide in an inert atmosphere.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: April 18, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Yoon Ah Kang, Yong Ju Lee, Mi Rim Lee, Je Young Kim, Hye Ran Jung
  • Patent number: 9548493
    Abstract: Provided are a porous composite expressed by Chemical Formula 1 and having a porosity of 5% to 90%, and a method of preparing the same: MOx??<Chemical Formula 1> where M and x are the same as described in the specification. According to the present invention, since a molar ratio (x) of oxygen to a molar ratio of (semi) metal in the porous composite is controlled, an initial efficiency of a secondary battery may be increased. Also, since the porous composite satisfies the above porosity, a thickness change rate of an electrode generated during charge and discharge of the secondary battery may be decreased and lifetime characteristics may be improved.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: January 17, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Jung Woo Yoo, Yong Ju Lee, Yoon Ah Kang, Mi Rim Lee, Je Young Kim
  • Publication number: 20160308196
    Abstract: Alloy particles for negative electrode active material are proposed, which can impart anti-oxidation property to Si-containing alloy particles, and suppress oxidation of the negative electrode active material due to electrolyte at a considerably high level. A negative electrode material of secondary battery is achieved by a negative electrode material of secondary battery which is capable of intercalating and de-intercalating lithium and which consists of alloy particles including a silicon phase, a metal phase and bismuth, in which a crystallite size of the silicon phase is 10 nm or smaller, and the metal phase includes at least one kind of metal alloying with silicon but not with lithium, and the negative electrode material includes primary particles formed at least by the silicon and the metals.
    Type: Application
    Filed: December 12, 2014
    Publication date: October 20, 2016
    Applicant: LG Chem, Ltd.
    Inventors: Keiko Matsubara, Yoshiyuki Igarashi, Mi-Rim Lee, Hye-Ran Jung, Yong-Ju Lee
  • Patent number: 9419276
    Abstract: The present disclosure relates to an anode active material comprising a composite of a core-shell structure, a lithium secondary battery comprising the same, and a method of manufacturing the anode active material. According to an aspect of the present disclosure, there is provided an anode active material of a core-shell structure comprising a core including alloyed (quasi)metal oxide-Li (MOx—Liy) and a shell including a carbon material coated on a surface of the core. According to another aspect of the present disclosure, there is provided a method of manufacturing the anode active material of the core-shell structure. According to an aspect of the present disclosure, an anode active material with high capacity, excellent cycle characteristics and volume expansion control capacity, and high initial efficiency is provided.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: August 16, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Yong-Ju Lee, Yoon-Ah Kang, Mi-Rim Lee, Je-Young Kim, Hye-Ran Jung