Patents by Inventor Won Gook Lee
Won Gook 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: 20230112671Abstract: A horizontal linear-vibration generating apparatus that includes: a case coupled to a bracket so as to provide mounting space therein; a stator mounted in the mounting space and including a coil-yoke unit electrically connected to a circuit substrate on the bracket; a vibrator having magnets corresponding to the coil-yoke unit and weighted bodies configured to amplify vibration and vibrating in a first direction with respect to the stator in the mounting space; and first and second springs correspondingly provided between the case and the vibrator and elastically supporting a shaking motion of the vibrator in the first direction with respect to the stator in the mounting space, at opposite sides of the vibrator, where the first spring and the second spring are integrally provided with first and second spring feet, respectively, for mounting the vibrator.Type: ApplicationFiled: December 30, 2020Publication date: April 13, 2023Applicant: JAHWA ELECTRONICS CO., LTD.Inventors: Soon Koo SHIM, Kyung Yang JUNG, Won Gook LEE, Han Ho YOO, Seung Ki KIM
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Patent number: 11070121Abstract: A vibration generating apparatus includes a bracket coupled to a rectangular case to form an inner space, a stator including a circuit board coupled to an upper surface of the bracket and a coil connected to the circuit board, a vibrator including a permanent magnet arranged on an exterior of the coil and a weighted body coupled to an outer circumferential surface of the permanent magnet, and an elastic member connecting the stator and the vibrator and elastically supporting the vibrator. The weighted body is polyhedral, and the vibrator moves up-and-down.Type: GrantFiled: August 4, 2017Date of Patent: July 20, 2021Assignee: JAHWA ELECTRONICS CO., LTD.Inventors: Nam Jin Choi, Kyung Hoon Jo, Soon Koo Shim, Young Bin Chong, Chun Choi, Won Gook Lee, Min Goo Lee
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Publication number: 20200321845Abstract: A vibration generating apparatus includes a bracket coupled to a rectangular case to form an inner space, a stator including a circuit board coupled to an upper surface of the bracket and a coil connected to the circuit board, a vibrator including a permanent magnet arranged on an exterior of the coil and a weighted body coupled to an outer circumferential surface of the permanent magnet, and an elastic member connecting the stator and the vibrator and elastically supporting the vibrator. The weighted body is polyhedral, and the vibrator moves up-and-down.Type: ApplicationFiled: August 4, 2017Publication date: October 8, 2020Applicant: JAHWA ELECTRONICS CO., LTD.Inventors: Nam Jin CHOI, Kyung Hoon JO, Soon Koo SHIM, Young Bin CHONG, Chun CHOI, Won Gook LEE, Min Goo LEE
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Patent number: 10389219Abstract: A vibration actuator includes a bracket coupled to a case to form an inner space; a stator having a circuit board coupled to an upper surface of the bracket, a coil connected to the circuit board, and a yoke provided in the coil; a vibrator having a permanent magnet disposed at an outer side of the coil and a weight coupled to an outer circumference of the permanent magnet; an elastic member configured to connect the stator and the vibrator and elastically support the vibrator; and a non-magnetic damper provided between the weight and the elastic member.Type: GrantFiled: October 26, 2016Date of Patent: August 20, 2019Assignee: JAHWA ELECTRONICS CO., LTD.Inventors: Nam Jin Choi, Kyung Hoon Jo, Soon Koo Shim, Young Bin Chong, Won Gook Lee, Min Goo Lee
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Patent number: 10381910Abstract: A linear vibration generating device, which includes a stator fixed on a bracket and having a center yoke concentrically fixed in an inner space of coil winding units and at least one blade extending from the center yoke in a direction perpendicular to the concentric axis, and a vibrator having a magnet surrounding outer circumferences of the coil winding units, and an elastic body disposed between the stator and the vibrator. The blade has at least one passage through which a coil wire for electrically connecting the coil winding units passes.Type: GrantFiled: November 25, 2015Date of Patent: August 13, 2019Assignee: JAHWA electronics Co., Ltd.Inventors: Soon Koo Shim, Young Bin Chong, Chun Choi, Won Gook Lee, Min Goo Lee
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Publication number: 20180166960Abstract: A linear vibration generating device, which includes a stator fixed on a bracket and having a center yoke concentrically fixed in an inner space of coil winding units and at least one blade extending from the center yoke in a direction perpendicular to the concentric axis, and a vibrator having a magnet surrounding outer circumferences of the coil winding units, and an elastic body disposed between the stator and the vibrator. The blade has at least one passage through which a coil wire for electrically connecting the coil winding units passes.Type: ApplicationFiled: November 25, 2015Publication date: June 14, 2018Applicant: JAHWA electronics Co., Ltd.Inventors: Soon Koo SHIM, Young Bin CHONG, Chun Choi, Won Gook LEE, Min Goo LEE
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Patent number: 9913364Abstract: A printed circuit board includes a pad to receive an electric signal from a controller, a plurality of signal lines connected to the pad to transmit the electric signal received at the pad, and a signal transmission unit connected to the signal lines to transmit the electric signal to a coil. The plurality of signal lines are configured to face each other in at least a partial region and/or disposed in a zigzag form in at least a partial region. If the printed circuit board and a vibration actuator including the printed circuit board are used, it is possible to change a high frequency interference region according to a pattern by changing a pattern of the printed circuit board, and to improve receiving efficiency of an antenna by reducing high frequency noise.Type: GrantFiled: March 17, 2017Date of Patent: March 6, 2018Assignee: JAHWA ELECTRONICS CO., LTD.Inventors: Chun Choi, Soon Koo Shim, Young Bin Chong, Nam Jin Choi, Won Gook Lee, Min Goo Lee, Kyung Hoon Jo
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Publication number: 20180042102Abstract: A printed circuit board includes a pad to receive an electric signal from a controller, a plurality of signal lines connected to the pad to transmit the electric signal received at the pad, and a signal transmission unit connected to the signal lines to transmit the electric signal to a coil. The plurality of signal lines are configured to face each other in at least a partial region and/or disposed in a zigzag form in at least a partial region. If the printed circuit board and a vibration actuator including the printed circuit board are used, it is possible to change a high frequency interference region according to a pattern by changing a pattern of the printed circuit board, and to improve receiving efficiency of an antenna by reducing high frequency noise.Type: ApplicationFiled: March 17, 2017Publication date: February 8, 2018Inventors: Chun CHOI, Soon Koo SHIM, Young Bin CHONG, Nam Jin CHOI, Won Gook LEE, Min Goo LEE, Kyung Hoon JO
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Publication number: 20180006542Abstract: A vibration actuator includes a bracket coupled to a case to form an inner space; a stator having a circuit board coupled to an upper surface of the bracket, a coil connected to the circuit board, and a yoke provided in the coil; a vibrator having a permanent magnet disposed at an outer side of the coil and a weight coupled to an outer circumference of the permanent magnet; an elastic member configured to connect the stator and the vibrator and elastically support the vibrator; and a non-magnetic damper provided between the weight and the elastic member.Type: ApplicationFiled: October 26, 2016Publication date: January 4, 2018Inventors: NAM JIN CHOI, KYUNG HOON JO, SOON KOO SHIM, YOUNG BIN CHONG, WON GOOK LEE, MIN GOO LEE
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Patent number: 9742254Abstract: Disclosed is an apparatus for generating linear vibration with a damper, which includes a housing having an inner space formed therein, a fixed body provided in the inner space and having a coil, a vibrating body having a magnet and a weight coaxially disposed with the coil and configured to move in a vertical direction on the basis of the fixed body, an elastic body configured to elastically support the vibrating body, a viscous fluid provided at an upper surface of the magnet and having viscosity, and a damper installed in the housing to face an upper surface of the vibrating body and configured to make a surface contact with the viscous fluid when the vibrating body moves upwards, the damper having a shape not making a surface contact with the entire viscous fluid simultaneously.Type: GrantFiled: November 10, 2016Date of Patent: August 22, 2017Assignee: JAHWA electronics Co., Ltd.Inventors: Nam Jin Choi, Kyung Hoon Jo, Soon Koo Shim, Young Bin Chong, Won Gook Lee, Min Goo Lee