Patents by Inventor Dong Sub Lee
Dong Sub 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).
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Publication number: 20240120584Abstract: A secondary battery includes: a can having an accommodation space therein; an electrode assembly accommodated in the accommodation space in the can; and a cap assembly sealed with the can. The can has a beading part recessed into a side wall of the can at a region below where the cap assembly is accommodated, and the beading part has an acute angle with respect to the side wall of the can.Type: ApplicationFiled: October 11, 2023Publication date: April 11, 2024Inventors: Jun Ho YANG, Woo Hyuk CHOI, Tae Yoon LEE, Jun Hwan KWON, Joung Ku KIM, Hyun Suk PARK, Dong Sub LEE
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Patent number: 11938457Abstract: The present disclosure relates to an apparatus for preparing an oligomer, the apparatus including: a reactor for oligomerizing a feed stream containing a fed monomer; a stirrer inserted into a hole formed in an upper portion of the reactor; and a solvent transfer line extending inward from a side of the reactor, wherein the stirrer includes a rotating shaft vertically extending downward from the upper portion of the reactor, and a blade having a conical shape whose vertex is positioned at a lower end of the rotating shaft and outer diameter increases from a bottom toward a top, and the solvent transfer line has a plurality of spray nozzles formed in a direction toward the blade.Type: GrantFiled: November 13, 2020Date of Patent: March 26, 2024Assignee: LG Chem, Ltd.Inventors: Hong Min Lee, Jeong Seok Lee, Jong Hun Song, Kyung Seog Youk, Dong Kwon Lee, Moon Sub Hwang
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Patent number: 11918521Abstract: A foldable ramp according to an embodiment is configured to assist a movement of means of transportation which may be used by disabled people, such as a wheelchair. The foldable ramp may be used as a stand for a billboard, and the foldable ramp may be unfolded to be used as a ramp.Type: GrantFiled: September 15, 2022Date of Patent: March 5, 2024Assignee: HUMAN TECHNOLOGY & COMPLEX CO., LTDInventors: Dong Kwang Lee, Hee Sub Kim, Sam Young Kim
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Publication number: 20240072294Abstract: A cylindrical secondary battery and a manufacturing method of a secondary battery are provided. A manufacturing method of a cylindrical secondary battery includes: winding an electrode assembly to expose a first electrode uncoated portion and a second electrode uncoated portion to opposite ends in a longitudinal direction; bending at least some portions of the first electrode uncoated portion and the second electrode uncoated portion of the electrode assembly in a direction by pressing the first electrode uncoated portion and the second electrode uncoated portion; welding electrode collector plates to ends of the bent first and second electrode uncoated portions; and inserting and sealing the electrode assembly into a cylindrical case.Type: ApplicationFiled: August 16, 2023Publication date: February 29, 2024Inventors: Jung Hyun KIM, Joung Ku KIM, Byung Kyu PARK, Jung Hyun PARK, Joo Youn SHIN, Gye Won LEE, Dong Sub LEE, Hyun Ki JUNG
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Patent number: 11912674Abstract: The present invention provides methods for treating or ameliorating metabolic diseases, cholestatic liver diseases, or organ fibrosis, which comprises administering to a subject a therapeutically effective amount of a pharmaceutical composition comprising an isoxazole derivative, a racemate, an enantiomer, or a diastereoisomer thereof, or a pharmaceutically acceptable salt of the derivative, the racemate, the enantiomer, or the diastereoisomer.Type: GrantFiled: March 4, 2021Date of Patent: February 27, 2024Assignee: IL DONG PHARMACEUTICAL CO., LTD.Inventors: Jae-Hoon Kang, Hong-Sub Lee, Yoon-Suk Lee, Jin-Ah Jeong, Sung-Wook Kwon, Jeong-Guen Kim, Kyung-Sun Kim, Dong-Keun Song, Sun-Young Park, Kyeo-Jin Kim, Ji-Hye Choi, Hey-Min Hwang
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Publication number: 20230238615Abstract: A cylindrical secondary battery includes: an electrode assembly including a positive electrode plate having a positive electrode multi-tab, a separator, and a negative electrode plate having a negative electrode multi-tab, the positive electrode plate, the separator, and the negative electrode plate being laminated and wound; a cylindrical can accommodating the electrode assembly; a cap plate coupled at an upper end of the cylindrical can and being electrically connected to the negative electrode multi-tab; and a positive electrode terminal protruding upwardly through the cap plate and being electrically connected to the positive electrode multi-tab.Type: ApplicationFiled: December 22, 2022Publication date: July 27, 2023Inventors: Jung Hyun PARK, Joo Youn SHIN, Joung Ku KIM, Jung Hyun KIM, Dong Sub LEE
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Publication number: 20230223579Abstract: A cylindrical secondary battery includes: a cylindrical can having a circular bottom portion, a side portion extending from the bottom portion, a beading part concavely formed inwardly at one end of the side portion, and a crimping part formed by bending a distal end of the side portion; an electrode assembly in the can; and a cap assembly sealing the can. The cap assembly includes a gasket for insulation from the can, and an upper portion of the gasket in a direction away from the electrode assembly has a smaller thickness than a lower portion of the gasket.Type: ApplicationFiled: January 10, 2023Publication date: July 13, 2023Inventors: Woo Hyuk CHOI, Tae Yoon LEE, Jun Hwan KWON, Jun Ho YANG, Joung Ku KIM, Hyun Suk PARK, Gwan Hyeon YU, Dong Sub LEE
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Publication number: 20230187745Abstract: A secondary battery is provided in which a first electrode (negative electrode) terminal and a second electrode (positive electrode) terminal may be concurrently (e.g., simultaneously) implemented in a cap assembly. A secondary battery includes: a case including a beading part and a crimping part; an electrode assembly physically coupled to the case and including a first electrode plate and a second electrode plate, the first electrode plate being electrically connected to the case; a first insulating gasket between the beading part and the crimping part; a cap plate coupled between the beading part and the crimping part through the first insulating gasket; a second insulating gasket extending through and coupled to the cap plate; and a rivet terminal extending through and physically coupled to the second insulating gasket, wherein the rivet terminal is electrically connected to the second electrode plate of the electrode assembly.Type: ApplicationFiled: October 27, 2022Publication date: June 15, 2023Inventors: Woo Hyuk CHOI, Bong Geun KANG, Jun Hwan KWON, Kyoung Tae KIM, Joung Ku KIM, Hyun Suk PARK, Jun Ho YANG, Dong Sub LEE, Tae Yoon LEE
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Publication number: 20220306444Abstract: Disclosed is an apparatus for opening and closing sample storage containers, including: a housing 110 having an external appearance provided such that a handle 130 held by a user is exposed; a driving device 180 for generating driving force to rotate a rotation shaft; a key 150 fitted and coupled to a lid 1 of at least one sample storage container and configured to be rotated by the driving force; and an ejector 160 for pressing the lid 1 when the handle 130 is pressed, so that the key 150 is disengaged from the lid 1.Type: ApplicationFiled: March 19, 2022Publication date: September 29, 2022Inventors: Min Ho Lee, Eu-Ree Ahn, Kyungmyung Lee, Jong Keun Jung, Yoonjung Cho, Dong Sub Lee, Jin Myung Lee
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Patent number: 9947957Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulating member is mounted on the top of the jelly-roll and the insulating member includes a perforated inlet enabling gas discharge and penetration of electrode terminals and a plurality of pores with a diameter of 100 ?m or less provided over the entire surface of the insulating member.Type: GrantFiled: May 31, 2013Date of Patent: April 17, 2018Assignee: LG Chem, Ltd.Inventors: Do Gyun Kim, Dong-Myung Kim, Dong Sub Lee, Sang Bong Nam, Sang Sok Jung
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Patent number: 9601746Abstract: A method for injecting an electrolyte includes heating a case in which an electrode assembly is accommodated, and injecting an electrolyte into the case after the heating of the case. Here, the heating of the case may include heating the case through high-frequency induction heating using a coil. Also, the coil may have a spiral shape to surround the outside of the case along a longitudinal direction of the case.Type: GrantFiled: July 4, 2014Date of Patent: March 21, 2017Assignee: LG CHEM, LTD.Inventors: Dong Sub Lee, Sin Young Park, Hang Seob Yoon, Hyun Suk Kim, Jeoung Soo Kim, Sang Bong Nam, Jun Ho Moon, Hyang Mok Lee
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Patent number: 9299967Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on top of the jelly-roll includes a perforated inlet enabling gas discharge and penetration of electrode terminals, a plurality of fine pores having a size that allows permeation of an electrolyte solution, but does not allow permeation of foreign materials, and a plurality of strip or bead shaped protrusions disposed in transverse and/or longitudinal directions on one or both surfaces of the insulator.Type: GrantFiled: June 4, 2012Date of Patent: March 29, 2016Assignee: LG Chem, Ltd.Inventors: Do Gyun Kim, Dong-Myung Kim, Sang Bong Nam, Dong Sub Lee, Jun Ho Moon, Sang Sok Jung
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Patent number: 9276286Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on the top of the jelly-roll includes a molded article made of a polymer resin or a polymer composite and a plurality of fine pores is perforated through the molded article.Type: GrantFiled: February 11, 2014Date of Patent: March 1, 2016Assignee: LG CHEM, LTD.Inventors: Do Gyun Kim, Dong-Myung Kim, Dong Sub Lee, Sang Bong Nam, Sang Sok Jung
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Patent number: 9263725Abstract: Provided are a secondary battery case and a method for manufacturing a secondary battery. The secondary battery case includes a can accommodating an electrode assembly and a top cap sealing an upper opening of the can. The top cap includes a top plate sealing the upper opening of the can, a filling hole passing through the top plate to fill an electrolyte into the can, and a protrusion protruding from the top plate on an upper portion of the filling hole. The protrusion is press-fitted into the filling hole to seal the filling hole. According to the present invention, the protrusion may protrude from the top plate. Thus, the protrusion may be press-fitted into the filling hole and thus broken to seal the filling hole. Therefore, the member for sealing the filling hole may be integrated with the top plate to reduce manufacturing costs and simplify a manufacturing process.Type: GrantFiled: May 21, 2014Date of Patent: February 16, 2016Assignee: LG CHEM, LTD.Inventors: Sin Young Park, Jeoung Soo Kim, Dong Sub Lee, Sang Bong Nam, Hang Seob Yoon, Hyang Mok Lee, Dong Hee Seo, Hyun Kyung Ko, Sang Jin Woo
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Publication number: 20160036034Abstract: A method for injecting an electrolyte includes heating a case in which an electrode assembly is accommodated, and injecting an electrolyte into the case after the heating of the case. Here, the heating of the case may include heating the case through high-frequency induction heating using a coil. Also, the coil may have a spiral shape to surround the outside of the case along a longitudinal direction of the case.Type: ApplicationFiled: July 4, 2014Publication date: February 4, 2016Applicant: LG CHEM, LTD.Inventors: Dong Sub LEE, Sin Young PARK, Hang Seob YOON, Hyun Suk KIM, Jeoung Soo KIM, Sang Bong NAM, Jun Ho MOON, Hyang Mok LEE
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Patent number: 9252454Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on the top of the jelly-roll includes a woven fabric or a knit fabric made of fibers.Type: GrantFiled: February 4, 2014Date of Patent: February 2, 2016Assignee: LG CHEM, LTD.Inventors: Do Gyun Kim, Dong-Myung Kim, Dong Sub Lee, Sang Bong Nam, Sang Sok Jung
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Patent number: 9236630Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case and a plate-shaped insulator is mounted on top of the jelly-roll, wherein the insulator has a porous structure in which a plurality of fine pores communicate in a longitudinal direction, or in traverse and longitudinal directions.Type: GrantFiled: February 11, 2014Date of Patent: January 12, 2016Assignee: LG CHEM, LTD.Inventors: Do Gyun Kim, Dong-Myung Kim, Dong Sub Lee, Sang Bong Nam, Sang Sok Jung
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Patent number: 9093684Abstract: Disclosed herein is a secondary battery having a jelly roll type electrode assembly (‘jelly roll’) of a cathode/separator/anode structure mounted in a battery container, wherein a seal tape is attached to an outer side of the jelly roll including a wound end of the jelly roll, and the seal tape reacts with an electrolyte with the result that the seal tape is gelled.Type: GrantFiled: July 30, 2013Date of Patent: July 28, 2015Assignee: LG CHEM, LTD.Inventors: Young Wook Kim, Dong-Myung Kim, Dong Sub Lee, Dae Sung Kim
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Publication number: 20150089799Abstract: Provided are a secondary battery case and a method for manufacturing a secondary battery. The secondary battery case includes a can accommodating an electrode assembly and a top cap sealing an upper opening of the can. The top cap includes a top plate sealing the upper opening of the can, a filling hole passing through the top plate to fill an electrolyte into the can, and a protrusion protruding from the top plate on an upper portion of the filling hole. The protrusion is press-fitted into the filling hole to seal the filling hole. According to the present invention, the protrusion may protrude from the top plate. Thus, the protrusion may be press-fitted into the filling hole and thus broken to seal the filling hole. Therefore, the member for sealing the filling hole may be integrated with the top plate to reduce manufacturing costs and simplify a manufacturing process.Type: ApplicationFiled: May 21, 2014Publication date: April 2, 2015Applicant: LG CHEM, LTD.Inventors: Sin Young PARK, Jeoung Soo KIM, Dong Sub LEE, Sang Bong NAM, Hang Seob YOON, Hyang Mok LEE, Dong Hee SEO, Hyun Kyung KO, Sang Jin WOO
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Patent number: 8968898Abstract: Disclosed herein is a cap assembly disposed at an open upper end of a cylindrical container of a battery in which an electrode assembly (jelly roll) of a cathode/separator/anode structure is mounted in the cylindrical container, wherein an electrode lead of the jelly roll is electrically connected to the lower end of a safety vent having notches, which are ruptured to discharge high pressure gas when high pressure is generated in the battery, and a safety element to interrupt current at a predetermined temperature is provided between the safety vent and the electrode lead.Type: GrantFiled: March 27, 2013Date of Patent: March 3, 2015Assignee: LG Chem, Ltd.Inventors: Dong Sub Lee, Dong-Myung Kim, Jae Dong Chang, Jun Ho Moon, Sang Sok Jung