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).

  • Publication number: 20120119595
    Abstract: Disclosed is a linear vibrator including a fixing part providing an inner space of 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 vibrating mass body, 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 including a through hole through which the magnet passes to prevent the substrate from contacting the magnet when the vibration part is vibrated.
    Type: Application
    Filed: March 9, 2011
    Publication date: May 17, 2012
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jun Kun Choi, Kwang Hyung Lee, Hwa Young Oh
  • Patent number: 8138639
    Abstract: Disclosed herein is a linear vibrator. The linear vibrator includes a casing defining an internal space. A vibratory unit is accommodated in the casing to vibrate up and down. A spring is mounted at an upper circumferential end thereof to an upper surface of the casing and secured at a lower end thereof to an upper portion of the vibratory unit, thus elastically supporting the vibratory unit. An annular locking ring has a larger outer diameter than an outer diameter of the vibratory unit and an outer diameter of the spring so that the upper circumferential end of the spring is locked to the casing through press-fitting. A bracket supports the casing and the vibratory unit, with a circuit board being mounted on the bracket.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: March 20, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Jun Kun Choi
  • Patent number: 8134259
    Abstract: Disclosed herein is a linear vibrator. The linear vibrator includes a stationary unit which has on an upper portion thereof a magnet generating a predetermined magnetic force and a yoke, and defines an internal space. A vibratory unit includes a coil mounted to face the magnet and applying an electric current, and a mass body. A spring is secured at a lower end thereof to the stationary unit and secured at an upper end thereof to the vibratory unit, thus elastically supporting the linear motion of the vibratory unit. A lubricating part is provided between an outer circumference of each of the magnet and the yoke and the coil, thus preventing noise and abrasion when the vibratory unit moves linearly, in addition to maintaining a vibration.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: March 13, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Jun Kun Choi
  • Patent number: 8097988
    Abstract: The present invention provides a horizontal linear vibrator which can reduce the thickness but increase the strength of vibrations 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, a cylindrical coil and springs. The bracket is coupled to the casing to form an internal space. The vibration unit includes a weight, a pair of yokes and magnets. The weight has an opening therein. The yokes are disposed on the inner surfaces of the weight. The magnets are provided in the yokes such that different poles of the magnets face each other. The cylindrical coil is perpendicularly mounted to the bracket and disposed in space between the pair of yoke. The springs are coupled to both ends 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: Grant
    Filed: September 18, 2009
    Date of Patent: January 17, 2012
    Assignee: Samsung Electro-Mechanics 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
  • Publication number: 20110316361
    Abstract: There is provided a horizontal linear vibrator including a bracket providing an internal space; a vibration unit mounted in the internal space and including a mass body moving horizontally and linearly; and a magnetic field unit including a magnet fixed to the mass body and a coil installed within a magnetic field of the magnet and generating electromagnetic force to allow the vibration unit to move horizontally and linearly, wherein the coil includes a coil line disposed between the bracket and a printed circuit board and extending outside of the internal space of the bracket such that the coil line is connected with the printed circuit board for applying power from an external source to the coil outside of the internal space of the bracket.
    Type: Application
    Filed: November 24, 2010
    Publication date: December 29, 2011
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Seok Jun Park, Jun Kun Choi, Hwa Young Oh, Jee Sung Lee, Yong Jin Kim, Kyung Ho Lee
  • Publication number: 20110309691
    Abstract: There is provided a linear vibrator including a housing providing an internal space; a magnetic field part having a yoke disposed in the internal space and a magnet magnetized on a surface of the yoke and vibrating in the internal space by an interaction with a coil to which power is applied; an elastic member connecting the yoke and the housing and allowing the magnetic field part to be elastically supported in the internal space; and a magnetic flux collecting part collecting magnetic flux of the magnetic field part and allowing the magnetic field part to move towards the coil.
    Type: Application
    Filed: November 19, 2010
    Publication date: December 22, 2011
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Seok Jun Park, Joon Choi, Jun Kun Choi, Hwa Young Oh
  • Publication number: 20110291497
    Abstract: 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: Application
    Filed: April 15, 2011
    Publication date: December 1, 2011
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Jun Kun Choi
  • Publication number: 20110278959
    Abstract: There is provided a linear vibrator including: a housing having an internal space formed therein; a magnetic field unit including a yoke disposed in the internal space and having a magnet and a magnet insertion part formed therein, and interacting with a coil to which power is applied to linearly move in the internal space, the magnet insertion part determining an insertion position of the magnet; and an elastic member disposed in a space between the housing and the magnetic field unit and elastically supporting linear movement of the magnetic field unit.
    Type: Application
    Filed: March 29, 2011
    Publication date: November 17, 2011
    Inventors: Jong Hyun YOON, Seung Hyeon Jeong, Joon Choi, Jun Kun Choi
  • Publication number: 20110227426
    Abstract: Disclosed herein is a linear vibrator having a mass body which is accommodated in a casing defining an internal space and is vibrated. The linear vibrator includes a bracket supporting the linear vibrator from a lower position. The bracket has a depression in a bottom thereof such that a coil lead wire of a coil is placed in the depression, thus preventing friction between the coil lead wire and a movable unit.
    Type: Application
    Filed: June 11, 2010
    Publication date: September 22, 2011
    Inventors: Kwang Hyung Lee, Jun Kun Choi, Hwa Young Oh, Jee Sung Lee, Je Hyun Bang, Yong Jin Kim, Kyung Ho Lee, Seok Jun Park
  • Patent number: 7999421
    Abstract: The present invention provides a horizontal linear vibrator which can reduce the thickness but increase the strength of vibrations 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. A first magnet is attached to an upper plate of the casing. The bracket is coupled to the lower end of the casing. The second magnet is attached to the bracket such that different poles of the first and second magnets face each other. The vibration unit has a weight, and a cylindrical coil which is provided in or under the weight. The springs are coupled to the 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: Grant
    Filed: September 14, 2009
    Date of Patent: August 16, 2011
    Assignee: Samsung Electro-Mechanics 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
  • Publication number: 20110133578
    Abstract: Disclosed herein is a linear vibrator. The linear vibrator includes a stationary unit which has on an upper portion thereof a magnet generating a predetermined magnetic force and a yoke, and defines an internal space. A vibratory unit includes a coil mounted to face the magnet and applying an electric current, and a mass body. A spring is secured at a lower end thereof to the stationary unit and secured at an upper end thereof to the vibratory unit, thus elastically supporting the linear motion of the vibratory unit. A lubricating part is provided between an outer circumference of each of the magnet and the yoke and the coil, thus preventing noise and abrasion when the vibratory unit moves linearly, in addition to maintaining a vibration.
    Type: Application
    Filed: February 9, 2010
    Publication date: June 9, 2011
    Inventor: Jun Kun CHOI
  • Publication number: 20110101797
    Abstract: A vibration motor is disclosed. In accordance with an embodiment of the present invention, the vibration motor includes a base, a vibrator, which reciprocates, a coupling part, which is protruded on at least one of the base and the vibrator, and a leaf spring, which includes a frame and an elastic part. Here, the frame is coupled to the coupling part and disposed apart from the base or the vibrator in which the coupling part is formed, and the elastic part is extended from the frame and elastically supports the vibrator. Thus, the leaf spring can be prevented from having concentrated stress and damage occurred, thereby improving the lifetime of the leaf spring.
    Type: Application
    Filed: March 17, 2010
    Publication date: May 5, 2011
    Inventors: Kyoung-Ho LEE, Hwa-Young Oh, Jee-Sung Lee, Seok-Jun Park, Je-Hyun Bang, Kwang-Hyung Lee, Yong-Jin Kim, Jun-Kun Choi
  • Publication number: 20110101799
    Abstract: A linear vibrator is disclosed. The linear vibrator in accordance with an embodiment of the present invention includes a base, a coil unit, which is coupled to the base, a magnet assembly, which forms a closed circuit of a magnetic force perpendicular to an electric current flowing through the coil unit and in which the magnet assembly relatively moves with respect to the coil unit, and an elastic member, which elastically supports the magnet assembly. Thus, a linear vibrator with an increased driving force can be provided by preventing the leakage of magnetic flux.
    Type: Application
    Filed: April 1, 2010
    Publication date: May 5, 2011
    Inventors: Ki-Suk Woo, Kyung-Ho Lee, Jun-Kun Choi, Yong-Jin Kim, Hwa-Young Oh, Je-Hyun Bang, Young-Bok Yoon, Suck-Jun Park, Kwang-Hyung Lee
  • Publication number: 20110089773
    Abstract: 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: Application
    Filed: October 20, 2010
    Publication date: April 21, 2011
    Inventor: Jun-Kun CHOI
  • Publication number: 20110074229
    Abstract: A vibration motor is disclosed. In accordance with an embodiment of the present invention, the vibration motor includes a base, a vibrator, which reciprocates in the base, a protruding part, which is formed on at least one of the base and the vibrator, and an elastic body, which is interposed between the base and the vibrator and has a through-part formed therein and in which the protruding part is inserted into the through-part and the elastic body is coupled to the base or the vibrator by caulking or bending the protruding part which is protruded through the through-part. Thus, the vibration motor can have a uniform resonant frequency characteristic since a spring is coupled by way of caulking or bending.
    Type: Application
    Filed: April 14, 2010
    Publication date: March 31, 2011
    Inventors: Yong-Jin KIM, Hwa-Young Oh, Jee-Sung Lee, Seok-Jun Park, Je-Hyun Bang, Kwang-Hyung Lee, Kyoung-Ho Lee, Jun-Kun Choi, Ki-Suk Woo
  • Publication number: 20110074228
    Abstract: A vibration motor is disclosed. In accordance with an embodiment of the present invention, the vibration motor includes a cylinder-shaped coil unit, a vibrator, which is inserted into the coil unit and includes a magnet that forms an asymmetric magnetic field in a vibration direction, and an elastic body, which elastically supports the vibrator. Thus, the vibration motor can have a nonlinear characteristic, and thus a frequency bandwidth in which a resonance occurs can be expanded.
    Type: Application
    Filed: April 14, 2010
    Publication date: March 31, 2011
    Inventors: Yong-Jin KIM, Hwa-Young Oh, Jee-Sung Lee, Seok-Jun Park, Je-Hyun Bang, Kwang-Hyung Lee, Kyoung-Ho Lee, Jun-Kun Choi, Ki-Suk Woo
  • Publication number: 20110068640
    Abstract: A horizontal linear vibrator includes: a bracket providing an internal space; a vibration unit mounted in the internal space and making a horizontal, linear movement; a magnetic field unit providing an electromagnetic force to allow the vibration unit to move horizontally; and a cover unit formed to cover an upper portion of the bracket, wherein the bracket includes a support plate part so as to support the vibration unit to make a horizontal, linear movement, and the cover unit is formed to overlap with the support plate part.
    Type: Application
    Filed: August 6, 2010
    Publication date: March 24, 2011
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jun Kun Choi, Hwa Young Oh, Yong Jin Kim
  • Publication number: 20110068639
    Abstract: A horizontal linear vibrator includes: a cover unit; a bracket providing an internal space between the cover unit and the bracket; a vibration unit including a mass body having an insertion part providing an accommodating space at one surface thereof, mounted in the internal space, and making a horizontal, linear movement; a magnetic field unit providing an electromagnetic force to allow the vibration unit to move horizontally; and one or more sub-mass units inserted in the insertion part in order to adjust a resonance frequency of the vibration unit.
    Type: Application
    Filed: June 2, 2010
    Publication date: March 24, 2011
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jun Kun Choi, Hwa Young Oh, Yong Jin Kim
  • Patent number: D639738
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: June 14, 2011
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Kyung Ho Lee, Jun Kun Choi, Yong Jin Kim, Jee Sung Lee, Hwa Young Oh, Seok Jun Park, Kwang Hyung Lee, Je Hyun Bang
  • Patent number: D639739
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: June 14, 2011
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Kyung Ho Lee, Jee Sung Lee, Jun Kun Choi, Seok Jun Park, Je Hyun Bang, Kwang Hyung Lee, Hwa Young Oh, Yong Jin Kim