Patents by Inventor Kyoungho Yoo
Kyoungho Yoo 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: 20240027725Abstract: A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a housing disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.Type: ApplicationFiled: October 5, 2023Publication date: January 25, 2024Inventors: Seongmin Lee, Sangok Park, Sangjun Min, Kyoungho Yoo, Taejin Jung, Taemin Ha, Seungki Kim
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Patent number: 11809014Abstract: A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a housing disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.Type: GrantFiled: December 21, 2020Date of Patent: November 7, 2023Assignee: LG INNOTEK CO., LTD.Inventors: Seongmin Lee, Sangok Park, Sangjun Min, Kyoungho Yoo, Taejin Jung, Taemin Ha, Seungki Kim
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Publication number: 20210109310Abstract: A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a housing disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.Type: ApplicationFiled: December 21, 2020Publication date: April 15, 2021Inventors: Seongmin Lee, Sangok Park, Sangjun Min, Kyoungho Yoo, Taejin Jung, Taemin Ha, Seungki Kim
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Patent number: 10914914Abstract: A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a housing disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.Type: GrantFiled: December 13, 2018Date of Patent: February 9, 2021Assignee: LG INNOTEK CO., LTD.Inventors: Seongmin Lee, Sangok Park, Sangjun Min, Kyoungho Yoo, Taejin Jung, Taemin Ha, Seungki Kim
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Publication number: 20190154951Abstract: A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a housing disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.Type: ApplicationFiled: December 13, 2018Publication date: May 23, 2019Inventors: SEONGMIN LEE, SANGOK PARK, SANGJUN MIN, KYOUNGHO YOO, TAEJIN JUNG, TAEMIN HA, SEUNGKI KIM
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Patent number: 10185117Abstract: A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a housing disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.Type: GrantFiled: January 5, 2017Date of Patent: January 22, 2019Assignee: LG INNOTEK CO., LTD.Inventors: Seongmin Lee, Sangok Park, Sangjun Min, Kyoungho Yoo, Taejin Jung, Taemin Ha, Seungki Kim
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Publication number: 20170115464Abstract: A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a housing disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.Type: ApplicationFiled: January 5, 2017Publication date: April 27, 2017Inventors: Seongmin Lee, Sangok Park, Sangjun Min, Kyoungho Yoo, Taejin Jung, Taemin Ha, Seungki Kim
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Patent number: 9575283Abstract: A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a housing disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.Type: GrantFiled: October 15, 2015Date of Patent: February 21, 2017Assignee: LG INNOTEK CO., LTD.Inventors: Seongmin Lee, Sangok Park, Sangjun Min, Kyoungho Yoo, Taejin Jung, Taemin Ha, Seungki Kim
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Patent number: 9515542Abstract: Disclosed is a voice coil motor, the motor including a rotor having a cylindrical bobbin that has a support block protruding from an upper end of an outer circumference thereof and a coil block that is coupled to the outer circumference of the bobbin in a direction from a lower surface to an upper surface of the bobbin and is supported by the support block, a stator having a magnet facing the coil block and a yoke holding the magnet, elastic members coupled to upper and lower surfaces of the bobbin, respectively, a base supporting the stator and the elastic members, and a foreign substance inflow-prevention portion formed on an upper surface of the base in such a way as to protrude around an opening formed in a central portion of the base in a shape of a closed loop.Type: GrantFiled: November 11, 2014Date of Patent: December 6, 2016Assignee: LG INNOTEK, CO., LTD.Inventors: Seungki Kim, Kyoungho Yoo
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Publication number: 20160033736Abstract: A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a housing disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.Type: ApplicationFiled: October 15, 2015Publication date: February 4, 2016Inventors: Seongmin Lee, Sangok Park, Sangjun Min, Kyoungho Yoo, Taejin Jung, Taemin Ha, Seungki Kim
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Patent number: 9190891Abstract: A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a housing disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.Type: GrantFiled: August 12, 2014Date of Patent: November 17, 2015Assignee: LG INNOTEK CO., LTD.Inventors: Seongmin Lee, Sangok Park, Sangjun Min, Kyoungho Yoo, Taejin Jung, Taemin Ha, Seungki Kim
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Publication number: 20150061415Abstract: Disclosed is a voice coil motor, the motor including a rotor having a cylindrical bobbin that has a support block protruding from an upper end of an outer circumference thereof and a coil block that is coupled to the outer circumference of the bobbin in a direction from a lower surface to an upper surface of the bobbin and is supported by the support block, a stator having a magnet facing the coil block and a yoke holding the magnet, elastic members coupled to upper and lower surfaces of the bobbin, respectively, a base supporting the stator and the elastic members, and a foreign substance inflow-prevention portion formed on an upper surface of the base in such a way as to protrude around an opening formed in a central portion of the base in a shape of a closed loop.Type: ApplicationFiled: November 11, 2014Publication date: March 5, 2015Inventors: Seungki Kim, Kyoungho Yoo
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Patent number: 8912690Abstract: Disclosed is a voice coil motor, the motor including a rotor having a cylindrical bobbin that has a support block protruding from an upper end of an outer circumference thereof and a coil block that is coupled to the outer circumference of the bobbin in a direction from a lower surface to an upper surface of the bobbin and is supported by the support block, a stator having a magnet facing the coil block and a yoke holding the magnet, elastic members coupled to upper and lower surfaces of the bobbin, respectively, a base supporting the stator and the elastic members, and a foreign substance inflow-prevention portion formed on an upper surface of the base in such a way as to protrude around an opening formed in a central portion of the base in a shape of a closed loop.Type: GrantFiled: December 13, 2011Date of Patent: December 16, 2014Assignee: LG Innotek Co., Ltd.Inventors: Seungki Kim, Kyoungho Yoo
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Publication number: 20140347556Abstract: A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a magnet fixing member disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.Type: ApplicationFiled: August 12, 2014Publication date: November 27, 2014Inventors: Seongmin Lee, Sangok Park, Sangjun Min, Kyoungho Yoo, Taejin Jung, Taemin Ha, Seungki Kim
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Patent number: 8836177Abstract: A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a magnet fixing member disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.Type: GrantFiled: July 29, 2011Date of Patent: September 16, 2014Assignee: LG Innotek Co., Ltd.Inventors: Seongmin Lee, Sangok Park, Sangjun Min, Kyoungho Yoo, Taejin Jung, Taemin Ha, Seungki Kim
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Patent number: 8360665Abstract: A camera shutter device and an optical apparatus having the same are disclosed. The camera shutter device includes a pair of cores, each wrapped by a coil and having a distal end facing the other, wherein each coil is formed at the distal end with an electromagnetic force line generating unit. A magnet comprising a first magnet and a second magnet is interposed between the pair of cores. The magnet linearly and reciprocally moves in a direction perpendicular to the electromagnetic force line generating unit, and a slider opens and shuts a shutter blade as the magnet linearly and reciprocally moves, whereby miniaturization and thinning of the shutter device can be realized, and an opening/shutting operation can be stably performed.Type: GrantFiled: February 22, 2011Date of Patent: January 29, 2013Assignee: LG Innotek Co., Ltd.Inventors: Jinsuk Han, Kyoungho Yoo, Seungki Kim
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Publication number: 20120146432Abstract: Disclosed is a voice coil motor, the motor including a rotor having a cylindrical bobbin that has a support block protruding from an upper end of an outer circumference thereof and a coil block that is coupled to the outer circumference of the bobbin in a direction from a lower surface to an upper surface of the bobbin and is supported by the support block, a stator having a magnet facing the coil block and a yoke holding the magnet, elastic members coupled to upper and lower surfaces of the bobbin, respectively, a base supporting the stator and the elastic members, and a foreign substance inflow-prevention portion formed on an upper surface of the base in such a way as to protrude around an opening formed in a central portion of the base in a shape of a closed loop.Type: ApplicationFiled: December 13, 2011Publication date: June 14, 2012Applicant: LG Innotek Co., Ltd.Inventors: Seungki Kim, Kyoungho Yoo
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Publication number: 20120025633Abstract: A VCM (voice coil motor) is disclosed, the VCM including: a rotor including a lens-accommodating, both ends opened cylindrical bobbin and a coil block including a coil wound on a periphery of the bobbin; a stator including a cylindrical yoke formed with a lens-exposing opening, a plurality of magnets disposed inside the yoke and opposite to the coil block, and a magnet fixing member disposed inside the yoke to fix the plurality of magnets; and an elastic member elastically supporting the bobbin.Type: ApplicationFiled: July 29, 2011Publication date: February 2, 2012Applicant: LG Innotek Co., Ltd.Inventors: Seongmin Lee, Sangok Park, Sangjun Min, Kyoungho Yoo, Taejin Jung, Taemin Ha, Seungki Kim
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Publication number: 20110206365Abstract: A camera shutter device and an optical apparatus having the same are disclosed, wherein the device includes a core including a first rod and a second rod, each arranged in parallel with the other, and one of which is wrapped by a coil, a first distal end formed at the first rod to generate an electromagnetic force line, and a second distal end formed at the second rod to generate an electromagnetic force line, a magnet arranged in opposition to the first and second distal ends to linearly and reciprocally move between the first and second distal ends, a slider for opening and closing a shutter blade in a case the magnet linearly and reciprocally moves between the first and second distal ends, wherein each area of the first and second distal ends is larger than each cross-sectional area of the first and second rods, such that miniaturization and thinning of the shutter device can be realized, and generation of trembling phenomenon can be prevented during an opening/shutting operation of the shutter blade.Type: ApplicationFiled: February 22, 2011Publication date: August 25, 2011Applicant: LG Innotek Co., Ltd.Inventors: Kyoungho Yoo, Seungki Kim, Taehwan Kim
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Publication number: 20110206363Abstract: A camera shutter device and an optical apparatus having the same are disclosed. The camera shutter device includes a pair of cores, each wrapped by a coil and having a distal end facing the other, wherein each coil is formed at the distal end with an electromagnetic force line generating unit. A magnet comprising a first magnet and a second magnet is interposed between the pair of cores. The magnet linearly and reciprocally moves in a direction perpendicular to the electromagnetic force line generating unit, and a slider opens and shuts a shutter blade as the magnet linearly and reciprocally moves, whereby miniaturization and thinning of the shutter device can be realized, and an opening/shutting operation can be stably performed.Type: ApplicationFiled: February 22, 2011Publication date: August 25, 2011Applicant: LG Innotek Co., Ltd.Inventors: Jinsuk Han, Kyoungho Yoo, Seungki Kim