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).

  • Patent number: 8810094
    Abstract: Disclosed herein is a linear vibration motor. The motor includes a stator and a vibrator. The stator includes a magnet. The vibrator includes a coil facing the magnet. A weight is coupled to the coil. A PCB is connected to the coil and the stator. An elastic member is coupled to stator and the coil. A damper is provided on the weight at a position facing the elastic member. The damper may be provided between the elastic member and the weight or between the elastic member and the inner surface of a casing. The damper can mitigate metallic high frequency noise attributable to friction between the elastic member and the weight or between the elastic member and the casing. Furthermore, the spatial utilization is increased, thereby enhancing the degree of freedom in designing the linear vibration motor.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: August 19, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd
    Inventors: An Soo Yoon, Hwa Young Oh, Joon Choi, Kwang Hyung Lee, Jun Kun Choi
  • Patent number: 8736121
    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: Grant
    Filed: March 9, 2011
    Date of Patent: May 27, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jun Kun Choi, Kwang Hyung Lee, Hwa Young Oh
  • Publication number: 20140117787
    Abstract: 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: Application
    Filed: January 8, 2014
    Publication date: May 1, 2014
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Jun Kun CHOI
  • Patent number: 8624449
    Abstract: Disclosed herein is a linear vibration motor, including: a fixing part, a vibrator part vibrating in a horizontal direction, and an elastic member coupled with the outer side of the vibrator part and a round-shaped bending part to elastically support the fixing part opposite to the vibrator part linearly vibrating in a horizontal direction.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: January 7, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd
    Inventors: Yong Jin Kim, Kyung Ho Lee, Jun Kun Choi, Hwa Young Oh
  • Patent number: 8536745
    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: Grant
    Filed: June 11, 2010
    Date of Patent: September 17, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    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: 8450886
    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: Grant
    Filed: March 29, 2011
    Date of Patent: May 28, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jong Hyun Yoon, Seung Hyeon Jeong, Joon Choi, Jun Kun Choi
  • Patent number: 8446055
    Abstract: A linear type vibration motor having a magnet casing is disclosed. The linear type vibration motor in accordance with an embodiment of the present invention includes a magnet assembly having a pair of magnets, in which same magnetic poles thereof face each other, a magnet casing, which has a hollow part formed therein and houses the magnet assembly in the hollow part, a base, which has a bobbin formed thereon and in which the magnet casing is inserted into the bobbin, a coil, which is coupled to the bobbin, a weight, which is coupled to both ends of the magnet casing, and a pair of elastic bodies, which are interposed between either end of the base and either end of the weight, respectively. Thus, the operating lifetime of the linear type vibration motor can be extended, and this arrangement can prevent the linear type vibration motor from being damaged by an external shock.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: May 21, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae-Woo Jun, Jun-Kun Choi, Hwa-Young Oh, Jee-Sung Lee, Yong-Jin Kim, Kyung-Ho Lee, Seok-Jun Park, Kwang-Hyung Lee, Je-Hyun Bang
  • Publication number: 20130113305
    Abstract: There is provided a linear vibrator including: a fixed part including a magnet generating magnetic force in an interior space having a predetermined size; a vibration part including a coil provided to face the magnet and generating electromagnetic force through interaction with the magnet, and a mass body; an elastic member coupled to the vibration part and the fixed part to thereby provide elastic force thereto; and a substrate including a free end, the free end being solid and coupled to the vibration part, and a fixed end coupled to the fixed part.
    Type: Application
    Filed: May 22, 2012
    Publication date: May 9, 2013
    Inventor: Jun Kun CHOI
  • Patent number: 8384259
    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: Grant
    Filed: June 2, 2010
    Date of Patent: February 26, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jun Kun Choi, Hwa Young Oh, Yong Jin Kim
  • Patent number: 8299658
    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: Grant
    Filed: August 6, 2010
    Date of Patent: October 30, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jun Kun Choi, Hwa Young Oh, Yong Jin Kim
  • Patent number: 8288898
    Abstract: A linear vibrator is disclosed. In accordance with an embodiment of the present invention, the linear vibrator includes a base, a coil unit, which is coupled to the base, a magnet, which is coupled to the coil unit such that the magnet can move relatively with respect to the coil unit, and a leaf spring, which is interposed between the magnet and the base and includes a plurality of plate-shaped members having center portions thereof being separated from one another and both respective ends thereof being coupled to one another. Thus, the linear vibrator can increase the range of displacement in the leaf spring and increase the magnitude of vibration in the linear vibrator.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: October 16, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae-Woo Jun, Jun-Kun Choi, Hwa-Young Oh, Yong-Jin Kim, Kyung-Ho Lee, Seok-Jun Park, Kwang-Hyung Lee, Je-Hyun Bang
  • Patent number: 8288899
    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: Grant
    Filed: November 24, 2010
    Date of Patent: October 16, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seok Jun Park, Jun Kun Choi, Hwa Young Oh, Jee Sung Lee, Yong Jin Kim, Kyung Ho Lee
  • Patent number: 8278786
    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: Grant
    Filed: April 1, 2010
    Date of Patent: October 2, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    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
  • Patent number: 8258657
    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: Grant
    Filed: April 14, 2010
    Date of Patent: September 4, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    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
  • Patent number: 8237314
    Abstract: Disclosed herein is a horizontal linear vibrator. The horizontal linear vibrator includes: a case and a bracket that are assembled with each other to form an inner space; a hollow coil that is installed in the case or the bracket; a vibrator that includes a magnetic field unit including one or more magnet disposed to penetrate through the inside of the hollow coil and a yoke formed to enclose the hollow coil and the magnets to generate magnetic field and a weight mounted in the magnetic field unit; a buffer member that is provided between the hollow coil and the yoke; and a spring member whose one end is fixed to the case or the bracket and other end is fixed to the vibrator and elastically supports the vibrator so as to horizontally move the vibrator.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: August 7, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jee Sung Lee, Seok Jun Park, Jun Kun Choi
  • Publication number: 20120187780
    Abstract: There is provided an apparatus for generating vibrations, the apparatus including: a lower case made of a non-magnetic material; a coil plate mounted on the lower case and made of a magnetic material so as to reduce magnetic force leakage; a coil mounted on the coil plate; and a motion element including a magnet disposed to be opposite to the coil such that an electromagnetic force is generated by interaction with the coil.
    Type: Application
    Filed: June 24, 2011
    Publication date: July 26, 2012
    Inventors: Je Hyun BANG, Suck Jun Park, Jun Kun Choi, Yong Jin Kim
  • Publication number: 20120169148
    Abstract: Disclosed herein is a linear vibration motor, including: a fixing part, a vibrator part vibrating in a horizontal direction, and an elastic member coupled with the outer side of the vibrator part and a round-shaped bending part to elastically support the fixing part opposite to the vibrator part linearly vibrating in a horizontal direction.
    Type: Application
    Filed: February 17, 2011
    Publication date: July 5, 2012
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yong Jin Kim, Kyung Ho Lee, Jun Kun Choi, Hwa Young Oh
  • Publication number: 20120169149
    Abstract: Disclosed herein is a linear vibration motor. The motor includes a stator and a vibrator. The stator includes a magnet. The vibrator includes a coil facing the magnet. A weight is coupled to the coil. A PCB is connected to the coil and the stator. An elastic member is coupled to stator and the coil. A damper is provided on the weight at a position facing the elastic member. The damper may be provided between the elastic member and the weight or between the elastic member and the inner surface of a casing. The damper can mitigate metallic high frequency noise attributable to friction between the elastic member and the weight or between the elastic member and the casing. Furthermore, the spatial utilization is increased, thereby enhancing the degree of freedom in designing the linear vibration motor.
    Type: Application
    Filed: April 20, 2011
    Publication date: July 5, 2012
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: An Soo Yoon, Hwa Young Oh, Joon Choi, Kwang Hyung Lee, Jun Kun Choi
  • Patent number: 8198769
    Abstract: The present invention provides a horizontal linear vibrator which can 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 bracket and the casing form the internal space therein. A coil is provided above the bracket such that the center axis thereof is oriented in a horizontal direction. The vibration unit is disposed through the coil and comprises a magnetic field generating unit and a weight. The magnetic field generating unit includes a magnet assembly and a yoke. The magnet assembly has magnets which are provided on opposite sides of a magnetic body core such that the similar magnetic poles of the magnets face each other. The weight is mounted to the magnetic field generating unit. The springs are coupled to the casing or the bracket and elastically support the vibration unit.
    Type: Grant
    Filed: October 17, 2009
    Date of Patent: June 12, 2012
    Assignee: Samsung Electro-Mechanics, Co., Ltd.
    Inventors: Hwa Young Oh, Jun Kun Choi, Yong Jin Kim, Kyung Ho Lee, Seok Jun Park, Je Hyun Bang, Kwang Hyung Lee, Ki Suk Woo, Seung Heon Han, Jae Woo Jun
  • Patent number: 8188623
    Abstract: Disclosed herein is a linear vibration motor. The motor includes a casing surrounding the top and widthwise side of the motor, and a bracket surrounding the bottom and lengthwise side of the motor. A plate is provided on an inner surface of a side of the bracket and integrally has a cylindrical part to accommodate a coil. A mass body is provided in a central portion of the bracket and vibrates horizontally, a yoke is provided on a side surface of the mass body, and a magnet is mounted to a central portion of the yoke to be inserted into an internal space of the coil. A spring couples the plate with the yoke, thus transmitting vibratory force to the motor. An extension part extends from an end of the spring, and a bearing is provided on an end of the extension part, thus minimizing friction with the casing.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: May 29, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seok Jun Park, Jun Kun Choi, Jae Woo Jun, Hwa Young Oh, Je Hyun Bang, Kwang Hyung Lee, Yong Jin Kim, Kyung Ho Lee