38 patents
Utility
High-efficiency Phase Shift Full-bridge Converter
4 Jan 24
A phase shift full bridge (PSFB) converter includes a switch portion including first to fourth switches connected in a form of a full bridge, a transformer configured to convert the output of the switch portion, a rectifying portion including at least one of a switch and a diode and configured to rectify the output of the transformer, a resonance inductor having an end connected to another end of a primary portion of the transformer and another end connected to a node between the third switch and the fourth switch, a first clamp diode having an end connected to an end of the first switch and another end connected to the other end of the primary portion of the transformer, and a second clamp diode having an end connected to the other end of the primary portion of the transformer and another end connected to another end of the second switch.
Sang Keun JI, Jae Eun KIM, Dong Kyun RYU
Filed: 30 Jun 23
Utility
Air-pocket prevention PCB, air-pocket prevention PCB module, electrical device including the same, and manufacturing method of electrical device including the same
21 Nov 23
The present invention relates to an electrical device including a printed circuit board (PCB) accommodated in a case, and more particularly, to an air-pocket prevention PCB, an air-pocket prevention PCB module, an electrical device including the same, and a manufacturing method of an electrical device including the same with improved fluidity of a resin material so that air pockets that may occur when the case is filled with the resin material are easily discharged and the resin material may be evenly filled inside the case.
Jun Kyu Lee, Jeong Man Han, Su Young Kim, Yong Woo Kang, Sang Keun Ji, Dong Kyun Ryu
Filed: 13 Oct 21
Utility
Peg hook label apparatus
17 Oct 23
A peg hook label apparatus includes a body provided with an electronic display unit displaying product information, and a holder provided on one end of the body and configured to have a first width in a portion connected to the body, the first width being greater than a second width of a locking hook disposed on an end portion thereof.
Hyun Hun Cho, Yong Bum Lim, Mi Deum Choi, Sang Baek Park
Filed: 2 Aug 21
Utility
Transformer
10 Oct 23
A transformer includes: an upper primary substrate (110) which is formed by stacking a plurality of dielectric substrates, each substrate being provided with spiral conductive patterns; a lower secondary substrate (120) which is formed by stacking a plurality of dielectric substrates, each substrate being provided with spiral conductive patterns, in which the lower secondary substrate is positioned below the upper primary substrate (110) in such a way that the lower secondary substrate comes into contact with the upper primary substrate (110) or is spaced apart from the upper primary substrate (110); and a secondary coil element (200) of a planar shape to produce an induced current by a current applied to the upper primary substrate (110) and the lower primary substrate (120).
Eun Sik Kim, Jun Kyu Lee, Changyong Kwon, Dong-kyun Ryu, Sang-keun Ji, Taeksoo Han, Jung Soo Lee
Filed: 27 Nov 19
Utility
Label Apparatus for Peg Hook
21 Sep 23
A label apparatus for a peg hook includes a body including a display unit displaying product information and a holder detachably provided at one end of the body and including a first engaging portion and a second engaging portion in which one end portions are rotatably connected to each other and the other end portions are attached to each other so that a catching hole is formed therebetween.
Sang Baek PARK
Filed: 18 Jan 23
Utility
Electronic Shelf Label and Method of Controlling Information Display of the Same
14 Sep 23
Provided is a computing technology for controlling information display of an electronic shelf label that is connected to a management server via a network and displays electronic information.
Han Jin Cho, Hyun Hun Cho, Se Uk Jeon, Jeong Ho Yoo
Filed: 19 May 23
Utility
Method and Light Device for Programming Light Device Via Encrypted Communication
14 Sep 23
The method for programming a lighting device via encrypted communications includes pairing the lighting device with a user device to connect first radio frequency (RF) communications, receiving information necessary for second encrypted RF communications by a first memory of the lighting device via the first RF communications, connecting second encrypted RF communications between the lighting device and the user device by using the information necessary for the second encrypted RF communications, and receiving encrypted lighting device setting information via the second encrypted RF communications.
Sun Ik KIM
Filed: 1 Mar 23
Utility
Electronic label management apparatus and method
18 Jul 23
Disclosed is computing technology for managing information display of an electronic label which is connected to a management server via a network and displays electronic information.
Bo Il Seo, Hyun Suk Lee
Filed: 10 Jun 20
Utility
Electronic shelf label and method of controlling information display of the same
23 May 23
Provided is a computing technology for controlling information display of an electronic shelf label that is connected to a management server via a network and displays electronic information.
Han Jin Cho, Hyun Hun Cho, Se Uk Jeon, Jeong Ho Yoo
Filed: 19 Jun 20
Utility
Board coupling structure with separate power supply circuit board
16 May 23
Provided is a board coupling structure in which a power supply circuit board is formed as a separate board, more specifically, to a board coupling structure in which a signal processing circuit board for processing signals such as image signals, voice signals, and the like and a power supply circuit board are formed as different types of boards and the different types of boards are laterally coupled to each other.
Chang Min Seo
Filed: 9 Dec 21
Utility
Planar Transformer and Bobbin Assembly Applied Thereto
6 Apr 23
The following disclosure relates to a planar transformer and a bobbin assembly applied thereto, and more particularly, to a planar transformer in which pins may be firmly fixed through a bobbin body, a bobbin assembly may be conveniently assembled to a transformer board using snap protrusions of the bobbin body, and a total height of the planar transformer may be lowered using a flange part at the time of mounting the planar transformer, and a bobbin assembly applied thereto.
Yun Sic BANG, Dong Kyun RYU, Yun Seop SHIN, Sang Keun JI
Filed: 2 Mar 22
Utility
Charger having heat insulating structure
14 Mar 23
A charger having a heat insulating structure is provided.
HyunSu Kim, JunKyu Lee
Filed: 27 Jan 20
Utility
Transformer and Power Supplying Device Including the Same
16 Feb 23
A transformer includes: a magnetic core including a lower magnetic structure and an upper magnetic structure; a printed circuit board arranged between the lower magnetic structure and the upper magnetic structure and including a core hole through which a midsection of the magnetic core penetrates, a primary coil, a secondary coil, a primary via-hole formed at an end of the printed circuit board and electrically connected to the primary coil, and a secondary via-hole formed at another end of the printed circuit board and electrically connected to the secondary coil; a primary pin inserted into the primary via-hole; a secondary pin inserted into the secondary via-hole; an insulating block into which a portion of the printed circuit board is inserted; and a mount on which the printed circuit board and the insulating block are mounted.
Chang Yong KWON, Dong Kyun RYU, Yun Sic BANG, Sang Keun JI
Filed: 14 Dec 21
Design
Electronic shelf label
13 Dec 22
Hyun Hun Cho, Yong Bum Lim, Mi Deum Choi, Kang Ig Kim
Filed: 5 May 20
Design
Electronic shelf label
13 Dec 22
Hyun Hun Cho, Yong Bum Lim, Mi Deum Choi, Kang Ig Kim
Filed: 5 May 20
Utility
Lighting device and controlling method thereof
6 Dec 22
Disclosed is a lighting device.
Jurae Kim, Euiseok Kim, Semi Lee
Filed: 17 May 21
Utility
Coil Structure, Power Factor Correction Circuit Including the Coil Structure, and Power Supply Including the Power Factor Correction Circuit
1 Dec 22
Provided is a coil structure including an inductor coil having a self-bonding wire structure and including a central hole, a detection coil electromagnetically coupled to the inductor coil, a support unit surrounding at least a portion of an outer periphery of the inductor coil, and a housing including an upper magnetic body and a lower magnetic body facing each other in a vertical direction with the inductor coil therebetween to form an inner space in which the inductor coil and the detection coil are provided, the upper magnetic body and the lower magnetic body each including a protrusion inserted into the central hole of the inductor coil.
Chang Yong Kwon, Dong Kyun RYU, Yun Sic BANG
Filed: 10 Sep 21
Utility
Lighting device and controlling method thereof
15 Nov 22
A lighting device is disclosed.
Jurae Kim, Jeonggye Lim, Eunji Kim
Filed: 17 May 21
Utility
Battery Case and Electronic Price Indicator Including the Same
3 Nov 22
A battery case includes: a first battery accommodating portion accommodating at least one first battery; a second battery accommodating portion arranged apart from the first battery accommodating portion and accommodating at least one second battery serially connected with the at least one first battery; a rail arranged between the first battery accommodating portion and the second battery accommodating portion; and a structure configured to move along the rail between the first battery accommodating portion and the second battery accommodating portion and prevent contact between same terminals of the at least one first battery and the at least one second battery at a point at which the at least one first battery and the at least one second battery touch each other.
Sang Baek Park
Filed: 28 Apr 22
Utility
Printed circuit board assembly
13 Sep 22
A PCB assembly includes a second PCB disposed adjacent to a first PCB and have a second hole facing a first hole, an upper plate disposed at an upper of the first and second hole and have a third hole disposed at the upper of the first hole and a fourth hole disposed at the upper of the second hole, a holder disposed at a lower of the first and second hole and have a lower plate having a fifth hole disposed at the lower of the first hole and a sixth hole disposed at the lower of the second hole, a first fixing screw penetrating through the third first, and fifth hole, and a second fixing screw penetrating through the fourth, second and sixth hole, and the lower plate includes a protrusion penetrating through the second PCB coupling the first PCB and the second PCB.
Chang Min Seo, Yong Jae Kim, Dae Hyun Jang
Filed: 23 Mar 21