Patents by Inventor Jun Kun Choi
Jun Kun Choi 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: 11569722Abstract: A sound vibration actuator includes: a casing having an internal space formed by an underside casing part, a side periphery casing part, and a top casing part; a coil part coupled to the top casing part in such a manner as to receive power from the outside; a magnet part disposed in the internal space of the casing and having a magnet and a weight; an elastic member whose one surface coupled to the magnet part; and a weight part coupled to the coil part. The sound vibration actuator can be varied in coupling ways of the components thereof to generate vibrations in a high frequency band as well as a low frequency band.Type: GrantFiled: December 5, 2019Date of Patent: January 31, 2023Assignee: MPLUS CO., LTD.Inventors: Seok Jun Park, Jun Kun Choi, Yeon Ho Son, Yong Tae Kim, Yong Jin Kim, Seung Wook Kim, Dong Su Moon
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Patent number: 11489427Abstract: A sound vibration actuator includes: a casing having an internal space formed by an underside casing part, a side periphery casing part, and a top casing part; a first vibration assembly disposed in the internal space of the casing; a second vibration assembly disposed between the first vibration assembly and the top casing part in such a manner as to be coupled to the top casing part; an elastic member whose one surface coupled to the first vibration assembly; and a third vibration assembly disposed between the first vibration assembly and the underside casing part in such a manner as to be coupled to the underside casing part. The sound vibration actuator includes at least three or more vibration assemblies disposed therein, thereby obtaining at least three or more resonance frequencies.Type: GrantFiled: December 5, 2019Date of Patent: November 1, 2022Assignee: MPLUS CO., LTD.Inventors: Jun Kun Choi, Yong Jin Kim, Yeon Ho Son, Yong Tae Kim, Dong Su Moon, Seok Jun Park, Tae Hoon Lee
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Patent number: 10986448Abstract: A sound vibration actuator includes: a casing having an internal space, a coil part coupled to the casing to receive power, a magnet part disposed in the casing, an elastic member whose one surface coupled to the magnet part, a substrate drawn from the internal space, and an external device-coupling part disposed on an outer peripheral surface of the casing to be coupled to an external device, wherein the casing has an underside casing part, a side periphery casing part, and a top casing part, the coil part is coupled to the top casing part, and the external device-coupling part includes a first coupling area coming into contact with a portion of the outer periphery of the side periphery casing part and second coupling areas extended from the first coupling area in a vertical direction to the first coupling area coupled to the external device.Type: GrantFiled: December 5, 2019Date of Patent: April 20, 2021Assignee: MPLUS CO., LTD.Inventors: Yong Jin Kim, Jun Kun Choi, Yeon Ho Son, Yong Tae Kim, Dong Su Moon, Seok Jun Park, Tae Hoon Lee
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Publication number: 20200295647Abstract: A sound vibration actuator includes: a casing having an internal space formed by an underside casing part, a side periphery casing part, and a top casing part; a first vibration assembly disposed in the internal space of the casing; a second vibration assembly disposed between the first vibration assembly and the top casing part in such a manner as to be coupled to the top casing part; an elastic member whose one surface coupled to the first vibration assembly; and a third vibration assembly disposed between the first vibration assembly and the underside casing part in such a manner as to be coupled to the underside casing part. The sound vibration actuator includes at least three or more vibration assemblies disposed therein, thereby obtaining at least three or more resonance frequencies.Type: ApplicationFiled: December 5, 2019Publication date: September 17, 2020Inventors: Jun Kun CHOI, Yong Jin KIM, Yeon Ho SON, Yong Tae KIM, Dong Su MOON, Seok Jun PARK, Tae Hoon LEE
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Publication number: 20200296516Abstract: A sound vibration actuator includes: a casing having an internal space, a coil part coupled to the casing to receive power, a magnet part disposed in the casing, an elastic member whose one surface coupled to the magnet part, a substrate drawn from the internal space, and an external device-coupling part disposed on an outer peripheral surface of the casing to be coupled to an external device, wherein the casing has an underside casing part, a side periphery casing part, and a top casing part, the coil part is coupled to the top casing part, and the external device-coupling part includes a first coupling area coming into contact with a portion of the outer periphery of the side periphery casing part and second coupling areas extended from the first coupling area in a vertical direction to the first coupling area coupled to the external device.Type: ApplicationFiled: December 5, 2019Publication date: September 17, 2020Inventors: Yong Jin KIM, Jun Kun CHOI, Yeon Ho SON, Yong Tae KIM, Dong Su MOON, Seok Jun PARK, Tae Hoon LEE
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Publication number: 20200260190Abstract: A sound vibration actuator includes a casing having an internal space formed by an underside casing part, a side periphery casing part, and a top casing part, a coil part coupled to the top casing part in such a manner as to receive power from the outside, a magnet part disposed in the internal space of the casing, an elastic member whose one surface coupled to the magnet part, and a weight part coupled to the top casing part. The sound vibration actuator is configured to allow the weight part to be coupled to the part for generating vibrations, thereby controlling vibrations in a high frequency resonance band.Type: ApplicationFiled: December 10, 2019Publication date: August 13, 2020Inventors: Seok Jun PARK, Jun Kun CHOI, Yeon Ho SON, Yong Tae KIM, Yong Jin KIM, Seung Wook KIM, Dong Su MOON
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Publication number: 20200136489Abstract: A sound vibration actuator includes: a casing having an internal space formed by an underside casing part, a side periphery casing part, and a top casing part; a coil part coupled to the top casing part in such a manner as to receive power from the outside; a magnet part disposed in the internal space of the casing and having a magnet and a weight; an elastic member whose one surface coupled to the magnet part; and a weight part coupled to the coil part. The sound vibration actuator can be varied in coupling ways of the components thereof to generate vibrations in a high frequency band as well as a low frequency band.Type: ApplicationFiled: December 5, 2019Publication date: April 30, 2020Inventors: Seok Jun PARK, Jun Kun CHOI, Yeon Ho SON, Yong Tae KIM, Yong Jin KIM, Seung Wook KIM, Dong Su MOON
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Patent number: 10562066Abstract: A linear vibrator having a flexible printed circuit board including a copper film pattern processed in a meander line pattern and, more particularly, a linear vibrator for solving a frequency interference problem between an electromagnetic structure and antenna disposed within a mobile device using a flexible printed circuit board (FPCB) including a copper film pattern processed in a meander line pattern in the linear vibrator. The linear vibrator can avoid resonant frequency interference through the copper film pattern having a frequency region out of the resonant frequency region of an antenna within a mobile device by processing the copper film pattern unique to an FPCB used in a linear vibrator.Type: GrantFiled: June 15, 2017Date of Patent: February 18, 2020Assignee: MPLUS CO., LTD.Inventors: Jun Kun Choi, Yeon Ho Son, Seok Jun Park, Tae Hoon Lee
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Publication number: 20180250709Abstract: A linear vibrator having a flexible printed circuit board including a copper film pattern processed in a meander line pattern and, more particularly, a linear vibrator for solving a frequency interference problem between an electromagnetic structure and antenna disposed within a mobile device using a flexible printed circuit board (FPCB) including a copper film pattern processed in a meander line pattern in the linear vibrator. The linear vibrator can avoid resonant frequency interference through the copper film pattern having a frequency region out of the resonant frequency region of an antenna within a mobile device by processing the copper film pattern unique to an FPCB used in a linear vibrator.Type: ApplicationFiled: June 15, 2017Publication date: September 6, 2018Inventors: Jun Kun CHOI, Yeon Ho SON, Seok Jun PARK, Tae Hoon LEE
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Patent number: 9793463Abstract: Disclosed herein is a piezoelectric vibration module capable of improving adhesion between a piezoelectric element and an external electrode disposed on the piezoelectric element, the piezoelectric vibration module, including: a piezoelectric element printing patterns of a first internal electrode and a second internal electrode therein and having a first external electrode electrically connected to the first internal electrode and a second external electrode electrically connected to the second internal electrode on an external surface thereof, wherein the first external electrode and the second external electrode are made of silver (Ag) and are formed on the external surface of the piezoelectric element.Type: GrantFiled: March 27, 2014Date of Patent: October 17, 2017Assignee: MPLUS CO., LTD.Inventors: Yeon Ho Son, Jae Kyung Kim, Jun Kun Choi
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Patent number: 9636708Abstract: A piezoelectric element includes an element layer, an electrode layer including one or more positive electrode layers and one or more negative electrode layers repeatedly stacked to alternate with each other on the element layers in a vertical direction, a primary positive electrode connection member connecting the positive electrode layers, a primary negative electrode connection member connecting the negative electrode layers, at least one secondary positive electrode connection member, at least one secondary negative electrode connection member, and a primary electrode connected to the primary positive electrode connection member and the primary negative electrode connection member and configured of a pair of electrodes, and at least one secondary electrode spaced apart from the primary electrode and configured of a pair of electrodes.Type: GrantFiled: August 1, 2016Date of Patent: May 2, 2017Assignee: MPLUS CO., LTD.Inventors: Yeon Ho Son, Joon Choi, Kyung Su Park, Jae Kyung Kim, Seung Hyeon Jeong, Jun Kun Choi
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Patent number: 9579691Abstract: A piezoelectric element includes an element layer, an electrode layer including one or more positive electrode layers and one or more negative electrode layers repeatedly stacked to alternate with each other on the element layers in a vertical direction, a primary positive electrode connection member connecting the positive electrode layers, a primary negative electrode connection member connecting the negative electrode layers, at least one secondary positive electrode connection member, at least one secondary negative electrode connection member, and a primary electrode connected to the primary positive electrode connection member and the primary negative electrode connection member and configured of a pair of electrodes, and at least one secondary electrode spaced apart from the primary electrode and configured of a pair of electrodes.Type: GrantFiled: May 16, 2014Date of Patent: February 28, 2017Assignee: MPLUS CO., LTD.Inventors: Yeon Ho Son, Joon Choi, Kyung Su Park, Jae Kyung Kim, Seung Hyeon Jeong, Jun Kun Choi
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Patent number: 9553497Abstract: The present invention provides a horizontal linear vibrator which can reduce the thickness but increase vibration strength while at the same time guaranteeing a sufficiently long lifetime and satisfactory responsivity. The horizontal linear vibrator includes a casing, a bracket, a vibration unit and springs. The casing defines an internal space therein. The bracket is disposed under the casing. A cylindrical coil is provided on the bracket. The vibration unit has a magnet, a yoke and a weight. The yoke contains the magnet therein and is open on the lower end thereof. The weight is coupled to the outer surface of the yoke. The springs are coupled to sidewall plates of the casing or the bracket. The springs elastically support the vibration unit to allow the vibration unit to vibrate in the horizontal direction.Type: GrantFiled: April 30, 2013Date of Patent: January 24, 2017Assignee: MPLUS CO., LTD.Inventors: Yong Jin Kim, Jun Kun Choi, Jae Woo Jun, Ki Suk Woo, Kwang Hyung Lee, Je Hyun Bang, Seok Jun Park, Kyung Ho Lee, Hwa Young Oh
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Publication number: 20160359098Abstract: A piezoelectric element includes an element layer, an electrode layer including one or more positive electrode layers and one or more negative electrode layers repeatedly stacked to alternate with each other on the element layers in a vertical direction, a primary positive electrode connection member connecting the positive electrode layers, a primary negative electrode connection member connecting the negative electrode layers, at least one secondary positive electrode connection member, at least one secondary negative electrode connection member, and a primary electrode connected to the primary positive electrode connection member and the primary negative electrode connection member and configured of a pair of electrodes, and at least one secondary electrode spaced apart from the primary electrode and configured of a pair of electrodes.Type: ApplicationFiled: August 1, 2016Publication date: December 8, 2016Inventors: Yeon Ho SON, Joon CHOI, Kyung Su PARK, Jae Kyung KIM, Seung Hyeon JEONG, Jun Kun CHOI
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Patent number: 9093888Abstract: There is provided a linear vibrator including a fixing unit having a magnet in an inner space of a certain size, the magnet generating magnetic force; a vibration unit including a coil disposed to face the magnet and generating electromagnetic force by interaction with the magnet, and a holder coupled with a surface of the coil and fixedly supporting a mass body which vibrates; and an elastic member coupled with the holder and the fixing unit and providing elastic force to the vibration unit.Type: GrantFiled: April 15, 2011Date of Patent: July 28, 2015Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventor: Jun Kun Choi
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Patent number: 9071121Abstract: A linear vibrator including: a fixing unit having a magnet in an inner space, the magnet generating magnetic force; a vibration unit including a coil disposed to face the magnet and generating electromagnetic force by interaction with the magnet, and a holder coupled with a surface of the coil and fixedly supporting a mass body which vibrates; and an elastic member coupled with the holder and the fixing unit and providing elastic force to the vibration unit.Type: GrantFiled: January 8, 2014Date of Patent: June 30, 2015Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventor: Jun Kun Choi
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Patent number: 9059623Abstract: A linear vibrator, including: a fixing part providing an inner space having a predetermined size; at least one magnet disposed in the inner space of the fixing part to generate a magnetic force; a vibration part including a coil disposed to face the magnet to generate electromagnetic force by interacting with the magnet, and a mass body being vibrated; an elastic member coupled to the fixing part and the vibration part to provide an elastic force; and a substrate coupled to the vibration part and disposed to surround at least a portion of an outer circumferential surface of the magnet so as to prevent the substrate from contacting the magnet when the vibration part is vibrated.Type: GrantFiled: February 19, 2013Date of Patent: June 16, 2015Assignee: SASMUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jun Kun Choi, Kwang Hyung Lee, Hwa Young Oh
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Patent number: 8957558Abstract: A linear vibration generator is disclosed. The linear vibration generator in accordance with an embodiment of the present invention includes a stationary part, which has a polygonal-prism-shaped coil and in which the polygonal-prism-shaped coil induces a magnetic field by having an electric current supplied, a vibrating part, which has a polygonal-prism-shaped magnet and in which a portion of the polygonal-prism-shaped magnet is inserted into the coil, an elastic member, which is coupled to the stationary part and elastically supports the vibrating part such that the vibrating part can move linearly, and a lubricating band, which is formed on an outer circumferential surface of the magnet.Type: GrantFiled: October 20, 2010Date of Patent: February 17, 2015Assignee: Samsung Electro-Mechanics Co., Ltd.Inventor: Jun-Kun Choi
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Publication number: 20140346924Abstract: A piezoelectric element includes an element layer, an electrode layer including one or more positive electrode layers and one or more negative electrode layers repeatedly stacked to alternate with each other on the element layers in a vertical direction, a primary positive electrode connection member connecting the positive electrode layers, a primary negative electrode connection member connecting the negative electrode layers, at least one secondary positive electrode connection member, at least one secondary negative electrode connection member, and a primary electrode connected to the primary positive electrode connection member and the primary negative electrode connection member and configured of a pair of electrodes, and at least one secondary electrode spaced apart from the primary electrode and configured of a pair of electrodes.Type: ApplicationFiled: May 16, 2014Publication date: November 27, 2014Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Yeon Ho Son, Joon Choi, Kyung Su Park, Jae Kyung Kim, Seung Hyeon Jeong, Jun Kun Choi
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Publication number: 20140292146Abstract: Disclosed herein is a piezoelectric vibration module capable of improving adhesion between a piezoelectric element and an external electrode disposed on the piezoelectric element, the piezoelectric vibration module, including: a piezoelectric element printing patterns of a first internal electrode and a second internal electrode therein and having a first external electrode electrically connected to the first internal electrode and a second external electrode electrically connected to the second internal electrode on an external surface thereof, wherein the first external electrode and the second external electrode are made of silver (Ag) and are formed on the external surface of the piezoelectric element.Type: ApplicationFiled: March 27, 2014Publication date: October 2, 2014Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Yeon Ho Son, Jae Kyung Kim, Jun Kun Choi