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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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
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Publication number: 20140220394Abstract: 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 perforated inlet enabling gas discharge and penetration of electrode terminals, and a plurality of fine pores that allow permeation of an electrolyte solution, but do not allow permeation of foreign materials having a size of 100 ?m or higher.Type: ApplicationFiled: June 7, 2012Publication date: August 7, 2014Applicant: 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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Publication number: 20140186670Abstract: 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: ApplicationFiled: June 4, 2012Publication date: July 3, 2014Applicant: 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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Publication number: 20140178725Abstract: 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: ApplicationFiled: February 11, 2014Publication date: June 26, 2014Applicant: LG CHEM, LTD.Inventors: Do Gyun KIM, Dong-Myung KIM, Dong Sub LEE, Sang Bong NAM, Sang Sok JUNG
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Publication number: 20140162102Abstract: 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: ApplicationFiled: February 11, 2014Publication date: June 12, 2014Applicant: LG CHEM, LTD.Inventors: Do Gyun KIM, Dong-Myung KIM, Dong Sub LEE, Sang Bong NAM, Sang Sok JUNG
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Publication number: 20140154543Abstract: 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: ApplicationFiled: February 4, 2014Publication date: June 5, 2014Applicant: 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: 8646717Abstract: Provided is a seat belt retractor capable of having its assembly readily performed to increase assembly efficiency, simplifying shapes of components to readily manufacture the retractor and reduce manufacturing cost, and preventing a webbing from being hooked when the webbing is rewound. The seat belt retractor includes a housing constituting a main body of the seat belt retractor, a guide drum rotatably installed in the housing, a connector inserted into one side of the guide drum, a base member surrounding the connector, a gear member inserted into the base member, a cylinder for operating the gear member, a torsion bar inserted into the guide drum, a locking member fixedly inserted between the torsion bar and the guide drum, a locking clutch installed at one surface of the locking member, a mechanism cover installed at one surface of the locking clutch, and a friction spring installed in the mechanism cover to stop operation of a lock arm fixed to the locking clutch.Type: GrantFiled: May 15, 2008Date of Patent: February 11, 2014Assignee: Autoliv Development ABInventors: In-Su Choi, Jung-Min Lee, Byung-Jin Lee, Dong-Sub Lee, Sang-Hong Bai, Gi-Young Bae, Jong-Kag Kim, Do-Shik Kim
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Patent number: 8608101Abstract: Provided is a locking member mounting structure of a seat belt retractor including: a locking base coupled to one side of a guide drum; a locking clutch rotatably coupled to one side surface of the locking base; a lock arm coupled to one side surface of the locking clutch so as to rotate at a predetermined angle; and a mechanism cover covering the locking clutch and the lock arm, wherein a leaf spring is fixed to extend to one side from a boss formed in the center of the locking clutch, and a fixing piece projects from one surface of the lock arm so as to be fixed to the leaf spring. The leaf spring which returns the lock arm installed in the locking clutch is easily assembled, and assembly time of the leaf spring is reduced, thereby increasing productivity. Further, since the leaf spring has a curved portion or is formed in a stair shape, elasticity of the leaf spring is maintained, and deformation of the leaf spring is prevented.Type: GrantFiled: May 14, 2008Date of Patent: December 17, 2013Assignee: Autoliv Development ABInventors: In-Su Choi, Jung-Min Lee, Byung-Jin Lee, Dong-Sub Lee, Sang-Hong Bai, Gi-Young Bae, Jong-Kag Kim, Do-Shik Kim
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Publication number: 20130316205Abstract: 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: ApplicationFiled: July 30, 2013Publication date: November 28, 2013Applicant: LG CHEM, LTD.Inventors: Young Wook KIM, Dong-Myung KIM, Dong Sub LEE, Dae Sung KIM
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Patent number: 8573648Abstract: An apparatus for rotating a webbing guide of a seat belt for a vehicle may include a drive unit for moving a cable connected at one end thereof by controlling driving of a motor in response to an actuating signal or a stop signal, the webbing guide connected to the other end of the cable, and hingedly rotated to a first direction of a vehicular body as the cable moves in a second direction, and a return unit provided on the webbing guide, and providing an elastic force to the webbing guide so that the webbing guide hingedly rotated to the first direction of the vehicular body returns to the second direction of the vehicular body when the motor stops driving.Type: GrantFiled: March 23, 2012Date of Patent: November 5, 2013Assignees: Hyundai Motor Company, Autoliv Development ABInventors: Woo Chul Park, Hyun Jeong You, Dong Sub Lee
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Publication number: 20130252055Abstract: 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: ApplicationFiled: May 31, 2013Publication date: September 26, 2013Inventors: Do Gyun KIM, Dong-Myung KIM, Dong Sub LEE, Sang Bong NAM, Sang Sok JUNG
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Publication number: 20130088001Abstract: An apparatus for rotating a webbing guide of a seat belt for a vehicle may include a drive unit for moving a cable connected at one end thereof by controlling driving of a motor in response to an actuating signal or a stop signal, the webbing guide connected to the other end of the cable, and hingedly rotated to a first direction of a vehicular body as the cable moves in a second direction, and a return unit provided on the webbing guide, and providing an elastic force to the webbing guide so that the webbing guide hingedly rotated to the first direction of the vehicular body returns to the second direction of the vehicular body when the motor stops driving.Type: ApplicationFiled: March 23, 2012Publication date: April 11, 2013Applicants: Autoliv Development AB, Hyundai Motor CompanyInventors: Woo Chul PARK, Hyun Jeong YOU, Dong Sub LEE
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Patent number: 8128016Abstract: Provided is a torsion bar support structure of a seat belt retractor capable of smoothly rotating a rotary torsion bar and preventing deformation of the torsion bar due to moment applied to the torsion bar by coupling support members to both ends of the torsion bar. The torsion bar support structure of a seat belt retractor includes a housing constituting a main body of the seat belt retractor, a guide drum rotatably coupled to the housing, a torsion bar inserted into the guide drum, a base member fixed to one side of the housing, a locking member fixed to the other side of the housing, and a cylinder accommodating a piston therein to rotate a gear member fixed to the base member, the structure including: a bearing member coupled to the gear member, and a cap surrounding a cover fixing shaft projecting from the locking member, wherein the bearing member and the cap rotatably support the torsion bar when rotation moment is applied in a circumferential direction and an axial direction of the torsion bar.Type: GrantFiled: May 14, 2008Date of Patent: March 6, 2012Assignee: Autoliv Development ABInventors: In-Su Choi, Jung-Min Lee, Byung-Jin Lee, Dong-Sub Lee, Sang-Hong Bai, Gi-Young Bae, Jong-Kag Kim, Do-Shik Kim
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Patent number: 8042758Abstract: Provided is a pretensioner for a seat belt retractor. The pretensioner for a seat belt retractor of a vehicle includes a torsion bar on which a webbing is wound; a gear member connected to the torsion bar; a base member with which the gear member is meshed and through which the torsion bar passes; a cylinder having a movement guide hole formed therein to supply a gas upon rapid deceleration of the vehicle; a piston having a rack formed at a side surface thereof in a longitudinal direction to be meshed with the gear member and moved along the movement guide hole upon supply of a gas, and; a cylindrical sealing operation part integrally formed with a bottom of the piston and projecting therefrom; and a sealing part coupled to an outer periphery of the sealing operation part to seal between the piston and an inner wall of the cylinder, wherein the base member has a hooking means for hooking the piston to a rack.Type: GrantFiled: May 14, 2008Date of Patent: October 25, 2011Assignee: Autoliv Development ABInventors: In-Su Choi, Jung-Min Lee, Byung-Jin Lee, Dong-Sub Lee, Sang-Hong Bai, Gi-Young Bae, Jong-Kag Kim, Do-Shik Kim
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Publication number: 20100118196Abstract: A method and an apparatus for scanning a channel in a digital broadcast receiver are provided. In the method, number of broadcast channels to be scanned are determined. Frequency values corresponding to the broadcast channels are determined. Thereafter, at least one broadcast channel is scanned based on the determined frequency values.Type: ApplicationFiled: November 13, 2009Publication date: May 13, 2010Inventor: Dong-Sub Lee
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Publication number: 20090134691Abstract: Provided is a pretensioner for a seat belt retractor. The pretensioner for a seat belt retractor of a vehicle includes a torsion bar on which a webbing is wound; a gear member connected to the torsion bar; a base member with which the gear member is meshed and through which the torsion bar passes; a cylinder having a movement guide hole formed therein to supply a gas upon rapid deceleration of the vehicle; a piston having a rack formed at a side surface thereof in a longitudinal direction to be meshed with the gear member and moved along the movement guide hole upon supply of a gas, and; a cylindrical sealing operation part integrally formed with a bottom of the piston and projecting therefrom; and a sealing part coupled to an outer periphery of the sealing operation part to seal between the piston and an inner wall of the cylinder, wherein the base member has a hooking means for hooking the piston to a rack.Type: ApplicationFiled: May 14, 2008Publication date: May 28, 2009Applicant: DELPHI KOREA CORPORATIONInventors: In-Su Choi, Jung-Min Lee, Byung-Jin Lee, Dong-Sub Lee, Sang-Hong Bai, Gi-Young Bae, Jong-Kag Kim, Do-Shik Kim
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Publication number: 20090057468Abstract: Provided is a torsion bar support structure of a seat belt retractor capable of smoothly rotating a rotary torsion bar and preventing deformation of the torsion bar due to moment applied to the torsion bar by coupling support members to both ends of the torsion bar. The torsion bar support structure of a seat belt retractor includes a housing constituting a main body of the seat belt retractor, a guide drum rotatably coupled to the housing, a torsion bar inserted into the guide drum, a base member fixed to one side of the housing, a locking member fixed to the other side of the housing, and a cylinder accommodating a piston therein to rotate a gear member fixed to the base member, the structure including: a bearing member coupled to the gear member, and a cap surrounding a cover fixing shaft projecting from the locking member, wherein the bearing member and the cap rotatably support the torsion bar when rotation moment is applied in a circumferential direction and an axial direction of the torsion bar.Type: ApplicationFiled: May 14, 2008Publication date: March 5, 2009Applicant: DELPHI KOREA CORPORATIONInventors: In-Su Choi, Jung-Min Lee, Byung-Jin Lee, Dong-Sub Lee, Sang-Hong Bai, Gi-Young Bae, Jong-Kag Kim, Do-Sik Kim