Patents by Inventor Sung Joon Oh
Sung Joon Oh 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).
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Patent number: 10703897Abstract: The present application relates to a block copolymer and its use. The present application can provides a block copolymer that has an excellent self assembling property or phase separation property and therefore can be used in various applications and its use.Type: GrantFiled: September 30, 2015Date of Patent: July 7, 2020Assignee: LG Chem, Ltd.Inventors: Jeong Kyu Lee, Sung Joon Oh, Yeon Joo Kang, Jung Keun Kim, In Young Song, Sung Soo Yoon
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Publication number: 20200149196Abstract: The present invention relates to a method for producing a polyacrylonitrile-based fiber, wherein the method polymerizes a monomer mixture including an acrylonitrile-based monomer, a carboxylic acid-based comonomer, and an acrylate-based comonomer, wherein the acrylate-based comonomer includes the steps of producing a polyacrylonitrile-based copolymer so as to be included in an amount of 4 to 20 parts by weight based on 100 parts by weight of the monomer mixture, fiberizing the polyacrylonitrile-based copolymer, oxidizing and stabilizing the fiberized polyacrylonitrile-based copolymer, which may control the oxidation stabilization reaction, particularly the cyclization reaction. Accordingly, the energy consumption of the oxidation stabilization reaction may be reduced, economical efficiency of the production of polyacrylonitrile-based fiber may be obtained, and the physical and mechanical properties of the carbon fiber may be improved.Type: ApplicationFiled: November 22, 2017Publication date: May 14, 2020Inventors: Jeong Kyu LEE, Chang Hun KIM, In Young SONG, Jeong Hun CHO, Jong Soo DO, Sung Joon OH, Joon Hee CHO
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Patent number: 10601048Abstract: The present invention relates to an electrode, a method for manufacturing same, and a battery comprising the electrode. An electrode and a method for manufacturing same can be provided wherein the electrode of the present invention prevents a segregation phenomenon by which a binder is concentrated on the surface of the electrode, thereby comprising an active layer exhibiting excellent peel strength on a current collector.Type: GrantFiled: April 5, 2016Date of Patent: March 24, 2020Assignee: LG CHEM, LTD.Inventors: Ji Hyun Jun, Sung Joon Oh, Shin Wook Jeon, Jin Oh Song, Choong Min Yi
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Patent number: 10377894Abstract: The present application relates to a block copolymer and its use. The present application can provides a block copolymer that has an excellent self assembling property or phase separation property and therefore can be used in various applications and its use.Type: GrantFiled: September 30, 2015Date of Patent: August 13, 2019Assignee: LG Chem, Ltd.Inventors: Jeong Kyu Lee, Je Gwon Lee, In Young Song, Sung Joon Oh, Yeon Joo Kang, Sung Soo Yoon, Jung Keun Kim
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Publication number: 20190211122Abstract: The present invention relates to an ethylene/alpha-olefin copolymer and, more particularly, to an ethylene/alpha-olefin copolymer that exhibits excellent environmental stress crack resistance by appropriately controlling the ratio of crystal structure domain and amorphous domain, and the like. The ethylene/alpha-olefin copolymer comprises an ethylene repeating unit and an alpha-olefin repeating unit, and has a crystal structure including a crystalline domain containing lamellar crystals and an amorphous domain containing a tie molecule that mediates bonding between the lamellar crystals. The lamellar crystal thickness (dc) of the ethylene/alpha-olefin copolymer as calculated from the result of Small Angle X-ray Scattering (SAXS) analysis is between 12.0 and 16.0 nm, the amorphous domain thickness (da) is between 4.0 and 5.3 nm, and the thickness ratio da/dc is between 0.3 and 0.4.Type: ApplicationFiled: October 25, 2017Publication date: July 11, 2019Inventors: Jeong Kyu LEE, Pum Suk PARK, In Young SONG, Sung Joon OH, Yi Young CHOI, Soon Ho SUN
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Publication number: 20190137658Abstract: Disclosed herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin, and hollow inorganic nanoparticles and solid inorganic nanoparticles which are dispersed in the binder resin, wherein the low-refractive layer includes a first layer containing at least 70 vol % of the entire solid inorganic nanoparticles and a second layer containing at least 70 vol % of the entire hollow inorganic nanoparticles, and at the time of fitting polarization ellipticity measured by ellipsometry for the first layer or/and the second layer included in the low-refractive layer using a Cauchy model represented by the following General Equation 1, the second layer satisfies a predetermined condition.Type: ApplicationFiled: January 3, 2019Publication date: May 9, 2019Applicant: LG CHEM, LTD.Inventors: In Young SONG, Jin Seok BYUN, Boo Kyung KIM, Seok Hoon JANG, Yeong Rae CHANG, Sung Joon OH
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Publication number: 20190137659Abstract: Disclosed herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin, and hollow inorganic nanoparticles and solid inorganic nanoparticles which are dispersed in the binder resin, wherein the low-refractive layer includes a first layer containing at least 70 vol % of the entire solid inorganic nanoparticles and a second layer containing at least 70 vol % of the entire hollow inorganic nanoparticles, and at the time of fitting polarization ellipticity measured by ellipsometry for the first layer or/and the second layer included in the low-refractive layer using a Cauchy model represented by the following General Equation 1, the second layer satisfies a predetermined condition.Type: ApplicationFiled: January 3, 2019Publication date: May 9, 2019Applicant: LG CHEM, LTD.Inventors: In Young SONG, Jin Seok BYUN, Boo Kyung KIM, Seok Hoon JANG, Yeong Rae CHANG, Sung Joon OH
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Patent number: 10253130Abstract: The present application provides the block copolymers and their application. The present application may provide the block copolymers that have excellent self assembling and phase separation properties and therefore that can be effectively used in various applications. The present application may also provide applications of the block copolymers.Type: GrantFiled: June 5, 2016Date of Patent: April 9, 2019Assignee: LG Chem, Ltd.Inventors: Jeong Kyu Lee, Yeon Joo Kang, Jung Keun Kim, Sung Joon Oh, Je Gwon Lee, Sung Soo Yoon
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Patent number: 10222510Abstract: Disclosed herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin, and hollow inorganic nanoparticles and solid inorganic nanoparticles which are dispersed in the binder resin, wherein the low-refractive layer includes a first layer containing at least 70 vol % of the entire solid inorganic nanoparticles and a second layer containing at least 70 vol % of the entire hollow inorganic nanoparticles, and at the time of fitting polarization ellipticity measured by ellipsometry for the first layer or/and the second layer included in the low-refractive layer using a Cauchy model represented by the following General Equation 1, the second layer satisfies a predetermined condition.Type: GrantFiled: March 9, 2017Date of Patent: March 5, 2019Assignee: LG CHEM, LTDInventors: In Young Song, Jin Seok Byun, Boo Kyung Kim, Seok Hoon Jang, Yeong Rae Chang, Sung Joon Oh
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Patent number: 10196475Abstract: The present application provides the block copolymers and their application. The present application may provide the block copolymers that have excellent self assembling and phase separation properties and therefore that can be effectively used in various applications. The present application may also provide applications of the block copolymers.Type: GrantFiled: June 5, 2016Date of Patent: February 5, 2019Assignee: LG Chem, Ltd.Inventors: Jung Keun Kim, Jeong Kyu Lee, Je Gwon Lee, Mi Sook Lee, No Jin Park, Se Jin Ku, Eun Young Choi, Sung Joon Oh, Sung Soo Yoon
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Patent number: 10067269Abstract: This disclosure relates to an anti-fingerprint film with low interaction energy that includes nanoscale or microscale microprojections having a contact side with the film, the upper side facing therewith, and a side wall connecting the contact side and the upper side, and has a shape such that the internal angle formed by the side wall and the film is an obtuse angle, an anti-fingerprint film including predetermined linear micropatterns or a continuous phase micropattern, and an electrical and electronic apparatus including the anti-fingerprint film.Type: GrantFiled: August 1, 2014Date of Patent: September 4, 2018Assignee: LG Chem, Ltd.Inventors: Eun Jeong Lee, Su Jin Kim, Ki-Hwan Kim, Sung Joon Oh, Jin Hyong Lim, Yeon Joo Kang
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Publication number: 20180106929Abstract: Disclosed herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin, and hollow inorganic nanoparticles and solid inorganic nanoparticles which are dispersed in the binder resin, wherein the low-refractive layer includes a first layer containing at least 70 vol % of the entire solid inorganic nanoparticles and a second layer containing at least 70 vol % of the entire hollow inorganic nanoparticles, and at the time of fitting polarization ellipticity measured by ellipsometry for the first layer or/and the second layer included in the low-refractive layer using a Cauchy model represented by the following General Equation 1, the second layer satisfies a predetermined condition.Type: ApplicationFiled: March 9, 2017Publication date: April 19, 2018Inventors: In Young SONG, Jin Seok BYUN, Boo Kyung KIM, Seok Hoon JANG, Yeong Rae CHANG, Sung Joon OH
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Publication number: 20180090765Abstract: The present invention relates to an electrode, a method for manufacturing same, and a battery comprising the electrode. An electrode and a method for manufacturing same can be provided wherein the electrode of the present invention prevents a segregation phenomenon by which a binder is concentrated on the surface of the electrode, thereby comprising an active layer exhibiting excellent peel strength on a current collector.Type: ApplicationFiled: April 5, 2016Publication date: March 29, 2018Applicant: LG CHEM, LTD.Inventors: Ji Hyun JUN, Sung Joon OH, Shin Wook JEON, Jin Oh SONG, Choong Min YI
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Publication number: 20170313869Abstract: The present application relates to a block copolymer and its use. The present application can provides a block copolymer that has an excellent self assembling property or phase separation property and therefore can be used in various applications and its use.Type: ApplicationFiled: September 30, 2015Publication date: November 2, 2017Applicant: LG Chem, Ltd.Inventors: Jeong Kyu Lee, Sung Joon Oh, Yeon Joo Kang, Jung Keun Kim, In Young Song, Sung Soo Yoon
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Publication number: 20170306074Abstract: The present application relates to a block copolymer and its use. The present application can provides a block copolymer that has an excellent self assembling property or phase separation property and therefore can be used in various applications and its use.Type: ApplicationFiled: September 30, 2015Publication date: October 26, 2017Applicant: LG Chem, Ltd.Inventors: Jeong Kyu Lee, Je Gwon Lee, In Young Song, Sung Joon Oh, Yeon Joo Kang, Sung Soo Yoon, Jung Keun Kim
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Publication number: 20160280835Abstract: The present application provides the block copolymers and their application. The present application may provide the block copolymers that have excellent self assembling and phase separation properties and therefore that can be effectively used in various applications. The present application may also provide applications of the block copolymers.Type: ApplicationFiled: June 5, 2016Publication date: September 29, 2016Applicant: LG Chem, Ltd.Inventors: Jeong Kyu Lee, Yeon Joo Kang, Jung Keun Kim, Sung Joon Oh, Je Gwon Lee, Sung Soo Yoon
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Publication number: 20160280832Abstract: The present application provides the block copolymers and their application. The present application may provide the block copolymers that have excellent self assembling and phase separation properties and therefore that can be effectively used in various applications. The present application may also provide applications of the block copolymers.Type: ApplicationFiled: June 5, 2016Publication date: September 29, 2016Applicant: LG Chem, Ltd.Inventors: Jung Keun Kim, Jeong Kyu Lee, Je Gwon Lee, Mi Sook Lee, No Jin Park, Se Jin Ku, Eun Young Choi, Sung Joon Oh, Sung Soo Yoon
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Publication number: 20150346392Abstract: This disclosure relates to an anti-fingerprint film with low interaction energy that includes nanoscale or microscale microprojections having a contact side with the film, the upper side facing therewith, and a side wall connecting the contact side and the upper side, and has a shape such that the internal angle formed by the side wall and the film is an obtuse angle, an anti-fingerprint film including predetermined linear micropatterns or a continuous phase micropattern, and an electrical and electronic apparatus including the anti-fingerprint film.Type: ApplicationFiled: August 1, 2014Publication date: December 3, 2015Applicant: LG CHEM, LTD.Inventors: Eun Jeong LEE, Su Jin KIM, Ki-Hwan KIM, Sung Joon OH, Jin Hyong LIM, Yeon Joo KANG
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Patent number: 9151989Abstract: The present invention relates to a norbornene monomer, a polynorbornene derivative, a liquid crystal alignment film including the same. and a liquid crystal display device including the same. More particularly, the present invention relates to a norbornene monomer, a polynorbornene derivative, a liquid crystal alignment film including the same, and a liquid crystal display device including the same, which have an alignment property by photoreaction, excellent thermal stability and photoreactivity, the increased photo-reaction rate and reliability of the alignment film, thereby showing high manufacturing process efficiency.Type: GrantFiled: March 27, 2014Date of Patent: October 6, 2015Assignee: LG Chem, Ltd.Inventors: Dai-Seung Choi, Heon Kim, Sung-Ho Chun, Sung-Joon Oh, Dong-Woo Yoo, Yu-Chan Kang
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Patent number: 9146427Abstract: The present invention relates to a norbornene monomer, a polynorbornene derivative, a liquid crystal alignment film including the same, and a liquid crystal display device including the same. More particularly, the present invention relates to a norbornene monomer, a polynorbornene derivative, a liquid crystal alignment film including the same, and a liquid crystal display device including the same, which have an alignment property by photoreaction, excellent thermal stability and photoreactivity, the increased photo-reaction rate and reliability of the alignment film, thereby showing high manufacturing process efficiency.Type: GrantFiled: March 27, 2014Date of Patent: September 29, 2015Assignee: LG Chem, Ltd.Inventors: Dai-Seung Choi, Heon Kim, Sung-Ho Chun, Sung-Joon Oh, Dong-Woo Yoo, Yu-Chan Kang