Patents by Inventor Myung Koo Park
Myung Koo Park 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: 9832835Abstract: An LED fluorescent lamp connected to an electronic fluorescent lamp ballast comprises a plurality of external connection pins having at least, a first connection pin connected to a terminal of the electronic fluorescent lamp ballast and a second connection pin connected to another terminal of the electronic fluorescent lamp ballast, an LED array including a plurality of LEDs connected in series, one or more diodes connected in series between the first connection pin and the second connection pin, one or more resistors connected in series between the first connection pin and the second connection pin. The LED array, the one or more resistors and the one or more diodes are connected in series with each other between the first connection pin and the second connection pin.Type: GrantFiled: November 23, 2016Date of Patent: November 28, 2017Assignees: KUMHO ELECTRIC INC.Inventor: Myung Koo Park
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Patent number: 9732914Abstract: Provided is a Light Emitting Diode (LED) lamp. The LED lamp includes: four external connection pins including at least two connection pins connected to a ballast stabilizer for a fluorescent lamp; an LED array in which a plurality of LEDs are connected in series; and at least a pair of capacitors formed between the LED array and the external connection pin, wherein in each of the at least a pair of capacitors, two polarized capacitors are connected in series with a back-to-back method.Type: GrantFiled: December 11, 2015Date of Patent: August 15, 2017Assignees: KUMHO ELECTRIC INC.Inventor: Myung Koo Park
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Patent number: 9732915Abstract: A light-emitting diode (LED) lamp which can replace a typical fluorescent lamp is provided. The LED lamp comprises external connection pins connected to terminals of an electronic or magnetic fluorescent lamp ballast, capacitor pairs connected to each of the external connection pins, diodes connected to each of the capacitor pairs and a LED array connected between the diodes, wherein an first external connection pin, a first capacitor pair, a first diode, an LED array, a second diode, a second capacitor pair and a second external connection pin are connected in series. Here, the first and second capacitor pairs include capacitors connected back to back. The LED lamp also further comprises a diode connected in anti-parallel with a series circuit of the second diode and the LED array, and another diode connected in anti-parallel with a series circuit of the first diode and the LED array.Type: GrantFiled: December 29, 2016Date of Patent: August 15, 2017Assignees: KUMHO ELECTRIC INC.Inventor: Myung Koo Park
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Publication number: 20170108176Abstract: A light-emitting diode (LED) lamp which can replace a typical fluorescent lamp is provided. The LED lamp comprises external connection pins connected to terminals of an electronic or magnetic fluorescent lamp ballast, capacitor pairs connected to each of the external connection pins, diodes connected to each of the capacitor pairs and a LED array connected between the diodes, wherein an first external connection pin, a first capacitor pair, a first diode, an LED array, a second diode, a second capacitor pair and a second external connection pin are connected in series. Here, the first and second capacitor pairs include capacitors connected back to back. The LED lamp also further comprises a diode connected in anti-parallel with a series circuit of the second diode and the LED array, and another diode connected in anti-parallel with a series circuit of the first diode and the LED array.Type: ApplicationFiled: December 29, 2016Publication date: April 20, 2017Applicants: KUMHO ELECTRIC INC.Inventor: Myung Koo PARK
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Publication number: 20170097124Abstract: Provided is a Light Emitting Diode (LED) lamp. The LED lamp includes: four external connection pins including at least two connection pins connected to a ballast stabilizer for a fluorescent lamp; an LED array in which a plurality of LEDs are connected in series; and at least a pair of capacitors formed between the LED array and the external connection pin, wherein in each of the at least a pair of capacitors, two polarized capacitors are connected in series with a back-to-back method.Type: ApplicationFiled: December 11, 2015Publication date: April 6, 2017Applicants: KUMHO ELECTRIC INC.Inventor: Myung Koo PARK
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Publication number: 20170079114Abstract: An LED fluorescent lamp connected to an electronic fluorescent lamp ballast comprises a plurality of external connection pins having at least, a first connection pin connected to a terminal of the electronic fluorescent lamp ballast and a second connection pin connected to another terminal of the electronic fluorescent lamp ballast, an LED array including a plurality of LEDs connected in series, one or more diodes connected in series between the first connection pin and the second connection pin, one or more resistors connected in series between the first connection pin and the second connection pin. The LED array, the one or more resistors and the one or more diodes are connected in series with each other between the first connection pin and the second connection pin.Type: ApplicationFiled: November 23, 2016Publication date: March 16, 2017Applicants: KUMHO ELECTRIC INC.Inventor: Myung Koo PARK
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Patent number: 9572205Abstract: A light-emitting diode (LED) lamp which can replace a typical fluorescent lamp is provided. The LED lamp comprises external connection pins connected to terminals of an electronic or magnetic fluorescent lamp ballast, capacitors connected to each of the external connection pins, diodes connected to each of the capacitors and a LED array connected between the diodes, wherein an first external connection pin, a first capacitor, a first diode, an LED array, a second diode, a second capacitor and a second external connection pin are connected in series. The LED lamp also further comprises a diode connected in anti-parallel with a series circuit of the second diode and the LED array, and another diode connected in anti-parallel with a series circuit of the first diode and the LED array.Type: GrantFiled: May 20, 2015Date of Patent: February 14, 2017Assignees: KUMHO ELECTRIC INC.Inventor: Myung Koo Park
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Publication number: 20160234909Abstract: A light-emitting diode (LED) lamp which can replace a typical fluorescent lamp is provided. The LED lamp includes an LED array including a plurality of external connection pins having at least, a first connection pin connected to a terminal of the electronic fluorescent lamp ballast and a second connection pin connected to another terminal of the electronic fluorescent lamp ballast; an LED array including a plurality of LEDs connected in series; one or more circuit breakers connected in series between the first connection pin and the second connection pin; and one or more diodes connected in series between the first connection pin and the second connection pin, wherein the LED array, the one or more circuit breakers, and the one or more diodes are connected in series each other between the first connection pin and the second connection pin.Type: ApplicationFiled: April 20, 2016Publication date: August 11, 2016Applicants: KUMHO ELECTRIC INC.Inventor: Myung Koo PARK
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Patent number: 9253830Abstract: A light-emitting diode (LED) lamp which can replace a typical fluorescent lamp is provided. The LED lamp comprises external connection pins connected to terminals of an electronic or magnetic fluorescent lamp ballast, capacitors connected to each of the external connection pins, diodes connected to each of the capacitors and a LED array connected between the diodes, wherein an first external connection pin, a first capacitor, a first diode, an LED array, a second diode, a second capacitor and a second external connection pin are connected in series. The LED lamp also further comprises a diode connected in anti-parallel with a series circuit of the second diode and the LED array, and another diode connected in anti-parallel with a series circuit of the first diode and the LED array.Type: GrantFiled: December 31, 2013Date of Patent: February 2, 2016Assignees: KUMHO ELECTRIC, INC.Inventor: Myung Koo Park
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Publication number: 20150257213Abstract: A light-emitting diode (LED) lamp which can replace a typical fluorescent lamp is provided. The LED lamp comprises external connection pins connected to terminals of an electronic or magnetic fluorescent lamp ballast, capacitors connected to each of the external connection pins, diodes connected to each of the capacitors and a LED array connected between the diodes, wherein an first external connection pin, a first capacitor, a first diode, an LED array, a second diode, a second capacitor and a second external connection pin are connected in series. The LED lamp also further comprises a diode connected in anti-parallel with a series circuit of the second diode and the LED array, and another diode connected in anti-parallel with a series circuit of the first diode and the LED array.Type: ApplicationFiled: May 20, 2015Publication date: September 10, 2015Applicants: KUMHO ELECTRIC INC.Inventor: Myung Koo PARK
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Publication number: 20150257233Abstract: A light-emitting diode (LED) fluorescent lamp which can replace a typical fluorescent lamp is provided. The LED fluorescent lamp includes an LED array including a plurality of LEDs connected in series; first through fourth connection pins; first through fourth capacitors connected to the first through fourth connection pins, respectively; a first diode having an commonly connected to second ends of the first and third capacitors and a cathode connected to a first end of the LED array; a second diode having an anode connected to a second end of the LED array and a cathode commonly connected to second ends of the second and fourth capacitors. The LED fluorescent lamp can replace a typical fluorescent lamp without a requirement of the installation of additional equipment or the change of wiring.Type: ApplicationFiled: May 20, 2015Publication date: September 10, 2015Applicants: KUMHO ELECTRIC INC.Inventor: Myung Koo PARK
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Patent number: 9078309Abstract: A light-emitting diode (LED) fluorescent lamp which can replace a typical fluorescent lamp is provided. The LED fluorescent lamp includes an LED array including a plurality of LEDs connected in series; first through fourth connection pins; first through fourth capacitors connected to the first through fourth connection pins, respectively; a first diode having an commonly connected to second ends of the first and third capacitors and a cathode connected to a first end of the LED array; a second diode having an anode connected to a second end of the LED array and a cathode commonly connected to second ends of the second and fourth capacitors. The LED fluorescent lamp can replace a typical fluorescent lamp without a requirement of the installation of additional equipment or the change of wiring.Type: GrantFiled: May 2, 2013Date of Patent: July 7, 2015Assignees: KUMHO ELECTRIC INC.Inventor: Myung Koo Park
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Patent number: 9072136Abstract: A light-emitting diode (LED) fluorescent lamp which can replace a typical fluorescent lamp is provided. The LED fluorescent lamp includes an LED array including a plurality of LEDs connected in series; first through fourth connection pins; first through fourth capacitors connected to the first through fourth connection pins, respectively; a first diode having an commonly connected to second ends of the first and third capacitors and a cathode connected to a first end of the LED array; a second diode having an anode connected to a second end of the LED array and a cathode commonly connected to second ends of the second and fourth capacitors. The LED fluorescent lamp can replace a typical fluorescent lamp without a requirement of the installation of additional equipment or the change of wiring.Type: GrantFiled: November 3, 2014Date of Patent: June 30, 2015Assignees: KUMHO ELECTRIC INC.Inventor: Myung Koo Park
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Patent number: 9041301Abstract: A light emitting diode (LED) fluorescent lamp includes an external connection pin including a first connection pin and a second connection pin, an LED array including a plurality of light emitting diodes (LEDs) connected in series, a current stabilizing capacitor connected in parallel to the LED array, and a capacitive element unit connected between the LED array and the external connection pin and configured to vary an impedance of a fluorescent lamp ballast connected to the capacitive element unit through the external connection pin.Type: GrantFiled: February 27, 2013Date of Patent: May 26, 2015Assignees: KUMHO ELECTRIC, INC.Inventor: Myung Koo Park
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Patent number: 8987998Abstract: An LED fluorescent lamp includes: an LED array having a plurality of LEDs connected in series; a first connection pin and a third connection pin connected to one side of the LED array; a second connection pin and a fourth connection pin connected to the other side of the LED array; at least one pair of capacitors connected to the LED array; and a short-circuit means for connecting at least one of the first connection pin and the third connection pin, and the second connection pin and the fourth connection pin, wherein the capacitors include: a first capacitor having one end connected to the first connection pin and the other end connected to one side of the LED array; a third capacitor having one end connected to the third connection pin and the other end connected to the one side of the LED array; a second capacitor having one end connected to the second connection pin and the other end connected to the other side of the LED array; and a fourth capacitor having one end connected to the fourth connection pinType: GrantFiled: June 3, 2011Date of Patent: March 24, 2015Assignees: Kumho Electric, Inc.Inventor: Myung Koo Park
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Publication number: 20150048746Abstract: A light-emitting diode (LED) fluorescent lamp which can replace a typical fluorescent lamp is provided. The LED fluorescent lamp includes an LED array including a plurality of LEDs connected in series; first through fourth connection pins; first through fourth capacitors connected to the first through fourth connection pins, respectively; a first diode having an commonly connected to second ends of the first and third capacitors and a cathode connected to a first end of the LED array; a second diode having an anode connected to a second end of the LED array and a cathode commonly connected to second ends of the second and fourth capacitors. The LED fluorescent lamp can replace a typical fluorescent lamp without a requirement of the installation of additional equipment or the change of wiring.Type: ApplicationFiled: November 3, 2014Publication date: February 19, 2015Applicants: KUMHO ELECTRIC INC.Inventor: Myung Koo PARK
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Patent number: 8907557Abstract: A light-emitting diode (LED) fluorescent lamp which can replace a typical fluorescent lamp is provided. The LED fluorescent lamp includes an LED array including a plurality of LEDs connected in series; first through fourth connection pins; first through fourth capacitors connected to the first through fourth connection pins, respectively; a first diode having an commonly connected to second ends of the first and third capacitors and a cathode connected to a first end of the LED array; a second diode having an anode connected to a second end of the LED array and a cathode commonly connected to second ends of the second and fourth capacitors. The LED fluorescent lamp can replace a typical fluorescent lamp without a requirement of the installation of additional equipment or the change of wiring.Type: GrantFiled: December 7, 2012Date of Patent: December 9, 2014Assignees: Kumho Electric Inc.Inventor: Myung Koo Park
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Patent number: 8907556Abstract: A light-emitting diode (LED) fluorescent lamp which can replace a typical fluorescent lamp is provided. The LED fluorescent lamp includes an LED array including a plurality of LEDs connected in series; first through fourth connection pins; first through fourth capacitors connected to the first through fourth connection pins, respectively; a first diode having an commonly connected to second ends of the first and third capacitors and a cathode connected to a first end of the LED array; a second diode having an anode connected to a second end of the LED array and a cathode commonly connected to second ends of the second and fourth capacitors. The LED fluorescent lamp can replace a typical fluorescent lamp without a requirement of the installation of additional equipment or the change of wiring.Type: GrantFiled: December 7, 2012Date of Patent: December 9, 2014Assignees: Kumho Electric Inc.Inventor: Myung Koo Park
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Publication number: 20140239827Abstract: A light emitting diode (LED) fluorescent lamp includes an external connection pin including a first connection pin and a second connection pin, an LED array including a plurality of light emitting diodes (LEDs) connected in series, a current stabilizing capacitor connected in parallel to the LED array, and a capacitive element unit connected between the LED array and the external connection pin and configured to vary an impedance of a fluorescent lamp ballast connected to the capacitive element unit through the external connection pin.Type: ApplicationFiled: February 27, 2013Publication date: August 28, 2014Applicant: KUMHO ELECTRIC, INC.Inventor: Myung Koo PARK
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Publication number: 20140111112Abstract: A light-emitting diode (LED) lamp which can replace a typical fluorescent lamp is provided. The LED lamp comprises external connection pins connected to terminals of an electronic or magnetic fluorescent lamp ballast, capacitors connected to each of the external connection pins, diodes connected to each of the capacitors and a LED array connected between the diodes, wherein an first external connection pin, a first capacitor, a first diode, an LED array, a second diode, a second capacitor and a second external connection pin are connected in series. The LED lamp also further comprises a diode connected in anti-parallel with a series circuit of the second diode and the LED array, and another diode connected in anti-parallel with a series circuit of the first diode and the LED array.Type: ApplicationFiled: December 31, 2013Publication date: April 24, 2014Applicants: KUMHO ELECTRIC INC.Inventor: Myung Koo PARK