Patents by Inventor Dong-hwan Kang
Dong-hwan Kang 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: 20230218895Abstract: The inventive concept relates to a needle tip for application of current, a hand piece, and a skin treatment apparatus that are equipped with a needle in which an electromagnetically-energized active region is formed as a partial region other than a tip end of the needle is exposed in a non-insulated state.Type: ApplicationFiled: March 16, 2023Publication date: July 13, 2023Applicant: JEISYS MEDICAL INC.Inventors: Dong Hwan KANG, Hye Jin SUN
-
Publication number: 20230142512Abstract: A porous silicon manufacturing method according to the present invention comprises the steps of: pretreating a silicon precursor and a heat dispersant; and conducting a thermal reduction reaction between the heat dispersant-pretreated silicon precursor and a metal reducing agent by using a rotary reaction chamber. When porous silicon manufactured by the manufacturing method is contained in a secondary battery anode active material and used in secondary batteries, the batteries exhibit high capacity and long lifespan characteristics. The present invention relates to a method for manufacturing porous silicon and a method for manufacturing a secondary battery anode active material containing the porous silicon manufactured thereby, with the aim of solving the problems with silicon materials under development for anode active materials for lithium secondary batteries, including excessive volume expansion during charge/discharge and resultant electrode fracture and lifespan shortening.Type: ApplicationFiled: March 16, 2021Publication date: May 11, 2023Inventors: Jung Kyoo LEE, Na Eun YOON, Dong Hwan KANG
-
Patent number: 11633592Abstract: The inventive concept relates to a needle tip for application of current, a hand piece, and a skin treatment apparatus that are equipped with a needle in which an electromagnetically-energized active region is formed as a partial region other than a tip end of the needle is exposed in a non-insulated state.Type: GrantFiled: September 18, 2020Date of Patent: April 25, 2023Assignee: JEISYS MEDICAL INC.Inventors: Dong Hwan Kang, Hye Jin Sun
-
Publication number: 20230124345Abstract: A laser device for skin treatment, includes: a laser generating unit including one or a plurality of diode lasers configured to generate a diode laser pulse, one or a plurality of diode laser drivers each arranged to correspond to the diode laser and configured to vary diode laser pulses generated from the diode laser into pulses having different durations, a laser amplifying unit configured to amplify the pulse transmitted from the diode laser generating unit, and a controller configured to control the diode laser generating unit and the laser amplifying unit to control a wavelength and intensity of a laser output from the laser amplifying unit.Type: ApplicationFiled: June 30, 2020Publication date: April 20, 2023Applicant: JEISYS MEDICAL INC.Inventors: Won Ju YI, Joo Hee CHO, Seong Jun KIM, Min Young KIM, Dong Hwan KANG
-
Publication number: 20230020863Abstract: The present invention relates to a needle-free injector using pulsed shock waves, the needle-free injector comprising: a power unit generating pulsed power; a pulsed shock wave generating unit which receives the pulsed power and generates pulsed shock waves; an upper housing in which a liquid and the pulsed shock wave generating unit are disposed; a lower housing which is connected to the upper housing, and in which a drug is disposed; a shock wave transmission unit which is provided between the upper housing and the lower housing to separate the upper housing and the lower housing; and an injection unit which is disposed in the lower housing and inject the drug.Type: ApplicationFiled: September 29, 2022Publication date: January 19, 2023Applicant: JEISYS MEDICAL INC.Inventors: Kyu Young SEO, Won Ju YI, Dong Hwan KANG
-
Publication number: 20230008067Abstract: The present invention relates to a drug injection device using pulsed shock waves, the drug injection device comprising: a power unit generating pulsed power; a pulsed shock wave generating unit which receives the pulsed power and generates pulsed shock waves; an upper housing in which a liquid and the pulsed shock wave generating unit are disposed; a lower housing which is connected to the upper housing, and in which a drug is disposed; a shock wave transmission unit which is provided between the upper housing and the lower housing to separate the upper housing and the lower housing; and an injection unit which is disposed in the lower housing and inject the drug.Type: ApplicationFiled: September 21, 2022Publication date: January 12, 2023Applicant: JEISYS MEDICAL INC.Inventors: Kyu Young SEO, Won Ju YI, Dong Hwan KANG
-
Publication number: 20220370731Abstract: Disclosed are a medicine injection tip that may smoothly insert and discharge a needle into and from skin, a hand piece, and a skin treatment device.Type: ApplicationFiled: May 11, 2022Publication date: November 24, 2022Applicant: JEISYS MEDICAL INC.Inventors: Jong Seung PARK, Kyoung Ho AN, Min Young KIM, Won Ju YI, Dong Hwan KANG
-
Publication number: 20220296911Abstract: The present invention provides a skin treatment device using radio frequency, the device including: a pair of electrodes including a first electrode and a second electrode and forming a bipolar electrode structure; an RF generation unit which has an output power of 100-500 W, and produces a radio frequency current of 4-15 MHz and supplies same to the first electrode and the second electrode so as to cause a discharge therebetween; a dielectric sheet on which the pair of electrodes is integrally formed and which is disposed to cover a skin portion to be treated, in a contact or non-contact type in the middle of a discharge path between the first electrode and the second electrode; and a cooling part including a nozzle for spraying a cooling fluid so as to cool the dielectric sheet.Type: ApplicationFiled: September 8, 2020Publication date: September 22, 2022Applicant: JEISYS MEDICAL INC.Inventor: Dong Hwan KANG
-
Patent number: 11338134Abstract: A skin treatment device includes: an RF generator configured to generate an RF output; and an applicator being of a bipolar type and including an applicator body and needles, wherein the needles are arranged on a front surface of the applicator body, inserted into a dermal layer of the skin of a person to be treated and electrically connected to the RF generator to transmit the RF output, wherein, when the applicator is turned on, the applicator transmits a single or a plurality of RF pulses according to the RF output to the person to be treated, and the RF output is 5 W or more and 13 W or less, and a frequency of the RF output is greater than 1 MHz and less than 3 MHz, and a duration of the RF pulse according to the RF output is 50 ms or more and 100 ms or less.Type: GrantFiled: October 7, 2019Date of Patent: May 24, 2022Assignees: JEISYS MEDICAL INC.Inventors: Dong Hwan Kang, Min Jung Shim, Hee Young Kim, Hyoung Moon Kim
-
Publication number: 20220133399Abstract: A needle tip for applying current is provided. The needle tip for applying current includes a needle fixing unit, and a plurality of needles disposed on one surface of the needle fixing unit, wherein each needle includes at least one active region which is formed, as an insulator is not coated on a partial area of the needle except for a distal end portion of the needle and electromagnetically conducted. The plurality of needles are connected to electrodes having alternately different polarities. When the plurality of needles include the plurality of active regions spaced apart from each other, the intensity of current applied to each of electrodes connected to the plurality of needles is adjusted, such that electric energy is transmitted between the plurality of active regions spaced apart from each other.Type: ApplicationFiled: January 13, 2022Publication date: May 5, 2022Applicant: JEISYS MEDICAL INC.Inventors: Dong Hwan KANG, Hye Jin SUN, Seung Hwan CHO
-
Publication number: 20220079650Abstract: Embodiments of the inventive concept provide an ultrasonic medical instrument moving horizontally by adjusting a depth wise location of an ultrasonic wave generating unit while not influencing an internal volume of a cartridge and variously setting focusing depths of ultrasonic waves in skin.Type: ApplicationFiled: September 14, 2021Publication date: March 17, 2022Applicant: JEISYS MEDICAL INC.Inventors: Min Young KIM, Kyun Tae KIM, Ki Ho JEONG, Won Ju YI, Dong Hwan KANG
-
Publication number: 20220072337Abstract: The inventive concept relates to an ultrasonic medical cartridge that may precisely move an ultrasonic wave generator by removing a backlash between a movable nut and a screw that move an ultrasonic wave generator, and an ultrasonic medical device including the same.Type: ApplicationFiled: August 27, 2021Publication date: March 10, 2022Applicant: JEISYS MEDICAL INC.Inventors: Kyun Tae KIM, Dong Hwan KANG
-
Publication number: 20210387023Abstract: Provided is an ultrasonic generator with an adjustable ultrasonic focusing depth. The ultrasonic generator with an adjustable ultrasonic focusing depth includes a cartridge housing in which an ultrasound generation portion generating ultrasonic waves is provided, a hand piece in which the cartridge housing is detachably mounted, the hand piece having a first actuator thereinside, and a main shaft to which the ultrasound generation portion is coupled so as to reciprocate in a horizontal direction, parallel to the bottom of the cartridge housing and a vertical direction, perpendicular to the bottom of the cartridge housing. One end of the main shaft is coupled to one end of the first actuator of the hand piece, and an other end of the main shaft is located inside the cartridge housing. The hand piece includes an adjustment portion adjusting an ultrasonic focusing depth of the ultrasound generation portion.Type: ApplicationFiled: June 10, 2021Publication date: December 16, 2021Applicant: JEISYS MEDICAL INC.Inventors: Eun Ho KIM, Kyun Tae KIM, Kwang Hee MOON, Su Yong LEE, Min Young KIM, Won Ju YI, Dong Hwan KANG
-
Publication number: 20210242657Abstract: A laser device for skin treatment includes: a laser generating unit including a diode laser for generating a pulse capable of being varied to a pulse width of 100 picoseconds (ps) to 2000 ps by a dedicated driver having a rising time of 100 ps or less and a pulse width adjustment unit for adjusting a width of the pulse generated by the diode laser, the laser generating unit configured to generate a single or a plurality of pulses; and a laser amplifying unit including a pumping lamp and a single or a plurality of amplification mediums having a rod structure for absorbing light energy from the pumping lamp, wherein, in the laser amplifying unit, a pulse supplied from the laser generating unit passes through at least one of the single or a plurality of amplification mediums a plurality of times inward from the outside and is gradually amplified.Type: ApplicationFiled: January 31, 2020Publication date: August 5, 2021Applicant: Jeisys Medical Inc.Inventors: Won Ju YI, Min Young KIM, Joo Hee CHO, Myeong Wook GU, Byoung Jin KO, Seong Jun KIM, Dong Hwan KANG
-
Publication number: 20210196951Abstract: A skin treatment device includes: an RF generator configured to generate an RF output; and an applicator being of a bipolar type and including an applicator body and needles, wherein the needles are arranged on a front surface of the applicator body, inserted into a dermal layer of the skin of a person to be treated and electrically connected to the RF generator to transmit the RF output, wherein, when the applicator is turned on, the applicator transmits a single or a plurality of RF pulses according to the RF output to the person to be treated, and the RF output is 5 W or more and 13 W or less, and a frequency of the RF output is greater than 1 MHz and less than 3 MHz, and a duration of the RF pulse according to the RF output is 50 ms or more and 100 ms or less.Type: ApplicationFiled: October 7, 2019Publication date: July 1, 2021Applicants: JEISYS MEDICAL INC.Inventors: Dong Hwan KANG, Min Jung SHIM, Hee Young KIM, Hyoung Moon KIM
-
Publication number: 20210016085Abstract: The inventive concept relates to a needle tip for application of current, a hand piece, and a skin treatment apparatus that are equipped with a needle in which an electromagnetically-energized active region is formed as a partial region other than a tip end of the needle is exposed in a non-insulated state.Type: ApplicationFiled: September 18, 2020Publication date: January 21, 2021Applicant: JEISYS MEDICAL INC.Inventors: Dong Hwan KANG, Hye Jin SUN
-
Patent number: 8666487Abstract: A device for skin treatment, which precisely transmits high-frequency energy to a target portion of skin tissue without causing a burn on the outer layer of the skin, thus artificially damaging the portion and inducing a wound curing reaction, therefore leading to the regeneration of skin and the propagation of collagen. The device prevents the surface of skin from suffering an injury during insertion, alleviates pain, and keeps the depth to which the needle is inserted into the skin uniform. The device includes a plurality of needles coated with an insulator except for sharp ends. A needle holding unit holds the needles. A drive unit directly or indirectly transmits a force to the needle holding unit, thus allowing the needles to be inserted into the skin. An electromagnetic wave transmitting unit is electrically connected to the needles and transmits electromagnetic waves to the needles.Type: GrantFiled: January 13, 2010Date of Patent: March 4, 2014Inventor: Dong Hwan Kang
-
Publication number: 20110092884Abstract: Disclosed herein is a device for skin treatment, which precisely transmits high-frequency energy to a target portion of skin tissue without causing a burn on the outer layer of the skin, thus artificially damaging the portion and inducing a wound curing reaction, therefore leading to the regeneration of skin and the propagation of collagen. The device prevents the surface of skin from suffering an injury during insertion, alleviates pain, and keeps the depth to which the needle is inserted into the skin uniform. The device includes a plurality of needles coated with an insulator except for sharp ends. A needle holding unit holds the needles. A drive unit directly or indirectly transmits a force to the needle holding unit, thus allowing the needles to be inserted into the skin. An electromagnetic wave transmitting unit is electrically connected to the needles and transmits electromagnetic waves to the needles.Type: ApplicationFiled: January 13, 2010Publication date: April 21, 2011Inventor: Dong Hwan Kang
-
Patent number: D933205Type: GrantFiled: February 28, 2020Date of Patent: October 12, 2021Assignee: JEISYS MEDICAL INC.Inventors: Dong Hwan Kang, Hye Jin Sun
-
Patent number: D941467Type: GrantFiled: March 5, 2020Date of Patent: January 18, 2022Assignee: JEISYS MEDICAL INC.Inventors: Dong Hwan Kang, Hye Jin Sun