Patents by Inventor Joo-won Lee

Joo-won Lee 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: 10808002
    Abstract: A method for producing high purity D-psicose crystals having a purity of 98% (w/w) or more and a grain size of MA200 or more. The method includes: removing impurities from a D-psicose solution to obtain a purified D-psicose solution; concentrating the purified D-psicose solution; cooling the concentrated D-psicose solution to 30° C. to 40° C. through a heat exchanger; seed crystallizing the D-psicose solution at 30° C. to 40° C. to obtain a seed crystallized massecuite; and full-scale crystallizing the seed crystallized massecuite. The method can produce pure D-psicose crystals in a suitable form for industrial application through an economical crystallization process from the D-psicose solution without using organic solvents.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: October 20, 2020
    Assignee: CJ Cheiljedang Corporation
    Inventors: Seong Bo Kim, Seung Won Park, Jun Gap An, Joo Hang Lee
  • Patent number: 10797056
    Abstract: A semiconductor device and methods of manufacturing the same are provided. The semiconductor device includes a substrate, buried semiconductor layers, a word line, a bit line, buried contacts, and insulation spacers, and a charge storage. The substrate has active regions and field regions. The buried semiconductor layers are buried in the substrate at the active regions. The word line is buried in the substrate and crosses one of the active regions. The bit line is disposed in one of the active regions. The buried contacts are disposed on the active regions and the field regions. The insulation spacers are disposed on the substrate and on a sidewall of the buried contacts, respectively. The charge storage is disposed on one or more of the buried contacts. The buried semiconductor layers contact, respectively, one of the buried contacts and one of the insulation spacers.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: October 6, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-A Kim, Yong-Kwan Kim, Se-Keun Park, Joo-Young Lee, Cha-Won Koh, Yeong-Cheol Lee
  • Patent number: 10778134
    Abstract: An apparatus for controlling an inverter for driving a motor includes a processor which includes: a current processor for generating a voltage command for causing a current detection value obtained by measuring a current supplied from the inverter to the motor to follow a current command for driving the motor; a voltage modulator for generating a pulse width modulation signal for controlling on and off states of switching elements in the inverter with a predetermined switching frequency based on the voltage command; and a frequency determining processor for setting a frequency change range within which the switching frequency will be randomly changed and randomly determining the switching frequency within the frequency change range when a random pulse width modulation method is applied to control of the inverter.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: September 15, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sung Kyu Kim, Yong Jae Lee, Su Hyun Bae, Ho Joon Shin, Tae Won Ha, Joo Young Park
  • Patent number: 10776580
    Abstract: Provided is a method of providing an unmanned dialogue service according to an embodiment of the inventive concept. The method includes transmitting or receiving text message data constituting a dialogue to or from a user terminal, analyzing the dialogue and determining whether an abnormal situation has occurred, transmitting an assistance request including information regarding the dialogue to a human agent management apparatus when it is determined that the abnormal situation has occurred, receiving dialogue advancement guide information, which is a response to the assistance request, from the human agent management apparatus, wherein the dialogue advancement guide information is configured using input data of a human agent input to a human agent terminal connected to the human agent management apparatus and configured to receive a task for processing the assistance request allocated by the human agent management apparatus, and continuing the dialogue using the dialogue advancement guide information.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: September 15, 2020
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Jin Woon Kim, Chang Pil Kim, Ji Hun Kim, Joon Won Lee, Bong Won Nah, Byung Jae Park, Seul Gi Kang, Jin Soo Lee, Keum Sik Im, Joo Hee Ahn, Young Min Park, Jean Su Byun
  • Publication number: 20200285660
    Abstract: Provided is a method of providing an unmanned dialogue service according to an embodiment of the inventive concept. The method includes transmitting or receiving text message data constituting a dialogue to or from a user terminal in an unmanned dialogue model, analyzing the dialogue to determine whether a counselor switching situation has occurred, transmitting a dialogue handover request including information regarding the dialogue to a counselor management apparatus when it is determined that the counselor switching situation has occurred, and automatically switching into a mode for relaying transmission or reception of messages between the user terminal and a counselor terminal that receives a task for processing the dialogue handover request allocated by the counselor management apparatus.
    Type: Application
    Filed: May 22, 2020
    Publication date: September 10, 2020
    Applicant: SAMSUNG SDS CO., LTD.
    Inventors: Jin Woon KIM, Chang Pil KIM, Ji Hun KIM, Joon Won LEE, Bong Won NAH, Byung Jae PARK, Seul Gi KANG, Jin Soo LEE, Keum Sik IM, Joo Hee AHN, Young Min PARK, Jean Su BYUN
  • Publication number: 20200241185
    Abstract: The present invention relates to an optical article, and an optical filter and an imaging device including the same. The optical article comprises: a near-infrared absorption glass substrate including a divalent copper ion as a chromatic ingredient; and a pigment dispersion layer formed on one surface or both surfaces of the near-infrared absorption glass substrate and having a near-infrared absorption pigment and an ultraviolet absorption pigment dispersed across the resin matrix thereof. Provided with a first and a second transmission cut-off region, the optical article has the advantage of allowing the fabrication of an excellent near-infrared cut-off filter that can effectively block light in near-infrared and ultraviolet bands and does not permit a difference in color sense with the change of incident angles.
    Type: Application
    Filed: September 21, 2018
    Publication date: July 30, 2020
    Applicant: LMS Co., Ltd.
    Inventors: Jeong Og CHOI, Joo Young KIM, Seon Ho YANG, Min Soo LEE, Yong Won CHOI
  • Patent number: 10718973
    Abstract: A display device includes a display panel for displaying an image, a light source module including a plurality of light sources, and an optical sheet provided between the display panel and the light source module for guiding light radiated by the light source module to the display panel. The optical sheet includes a first transparent layer including a plurality of grooves provided on a first surface of the optical sheet that is opposite to the display panel, and having a first refraction index, a second transparent layer provided in each of the plurality of grooves and having a second refraction index that is different from the first refraction index, and a reflective layer including a light reflective material provided in each of the plurality of grooves and covering the second transparent layer, and including a light-reflective material.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: July 21, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Jun Jeong, Joo Won Lee, Min Woo Kang, Sei Young Kang, Dong Jun Lee, Jae Jeong Lee
  • Publication number: 20200212438
    Abstract: A negative electrode for a lithium secondary battery including: a negative electrode current collector; and a negative electrode active material layer disposed on the negative electrode current collector, wherein the negative electrode active material layer includes: a graphite-based active material having an average particle diameter (D50) of 5 ?m to 50 ?m; silicon nanoparticles having an average particle diameter (D50) of 70 nm to 300 nm; a first conductive material; and two or more cellulose-based compounds, wherein each cellulose-based compound has a different weight average molecular weight, a method of forming the negative electrode, and a lithium secondary battery including the negative electrode.
    Type: Application
    Filed: August 27, 2018
    Publication date: July 2, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Joo Sung LEE, Hee Won LEE
  • Patent number: 10698933
    Abstract: Provided is a method of providing an unmanned dialogue service according to an embodiment of the inventive concept. The method includes transmitting or receiving text message data constituting a dialogue to or from a user terminal in an unmanned dialogue model, analyzing the dialogue to determine whether a counselor switching situation has occurred, transmitting a dialogue handover request including information regarding the dialogue to a counselor management apparatus when it is determined that the counselor switching situation has occurred, and automatically switching into a mode for relaying transmission or reception of messages between the user terminal and a counselor terminal that receives a task for processing the dialogue handover request allocated by the counselor management apparatus.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: June 30, 2020
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Jin Woon Kim, Chang Pil Kim, Ji Hun Kim, Joon Won Lee, Bong Won Nah, Byung Jae Park, Seul Gi Kang, Jin Soo Lee, Keum Sik Im, Joo Hee Ahn, Young Min Park, Jean Su Byun
  • Publication number: 20200172945
    Abstract: The present application relates to a method for producing D-psicose, the method comprising the steps of: putting a composition containing a D-psicose borate complex into a chromatography comprising divalent cations; and separating the composition containing the D-psicose borate complex into a D-psicose-containing fraction (i) and a borate-containing fraction (ii).
    Type: Application
    Filed: June 22, 2018
    Publication date: June 4, 2020
    Applicant: CJ CHEILJEDANG CORPORATION
    Inventors: Min Hoe KIM, Joo Hang LEE, Hye Jin JO, Seong Bo KIM, Yang Hee KIM, Jung Eun KIM, Seung Won PARK, Eun Jung CHOI
  • Publication number: 20200161308
    Abstract: A semiconductor device and methods of manufacturing the same are provided. The semiconductor device includes a substrate, buried semiconductor layers, a word line, a bit line, buried contacts, and insulation spacers, and a charge storage. The substrate has active regions and field regions. The buried semiconductor layers are buried in the substrate at the active regions. The word line is buried in the substrate and crosses one of the active regions. The bit line is disposed in one of the active regions. The buried contacts are disposed on the active regions and the field regions. The insulation spacers are disposed on the substrate and on a sidewall of the buried contacts, respectively. The charge storage is disposed on one or more of the buried contacts. The buried semiconductor layers contact, respectively, one of the buried contacts and one of the insulation spacers.
    Type: Application
    Filed: January 22, 2020
    Publication date: May 21, 2020
    Applicant: SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME
    Inventors: Jin-A KIM, Yong-Kwan Kim, Se-Keun Park, Joo-Young Lee, Cha-Won Koh, Yeong-Cheol Lee
  • Patent number: 10650816
    Abstract: An artificial intelligence voice interactive system may provide various services to a user in response to a voice command. The system may perform at least one of: receiving user speech from a user; transmitting the received user speech to the central server; receiving at least one of control signals and audio and video answers, which are generated based on an analysis and interpretation result of the user speech, from at least one of the central server, the internal service servers, and the external service servers; and outputting the received audio and video answers through at least one of speakers and a display coupled to the user interactive device and controlling at least one device according to the control signals.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: May 12, 2020
    Assignee: KT CORPORATION
    Inventors: Sang-Wook Lee, Hyun-Jung Kang, Sun-Jong Kwon, Mi-Hee Kim, Jin-Han Kim, Gyu-Tae Baek, Joo-Won Sung, Kyeong-Jin Oh, Jin-Young Oh, Ji-Hui Im, Du-Seong Chang, Won-Seock Choi
  • Patent number: 10651263
    Abstract: A display device includes: a first substrate; a display area with a plurality of pixels on the first substrate; a pad portion adjacent to a first side of the display area and including a plurality of connecting pads positioned on the first substrate; a first common power wire positioned between the display area and the pad portion and connected to a first connecting pad as at least one of the plurality of connecting pads to receive a power voltage; a second common power wire positioned adjacent to a second side of the display area facing the first side; an encapsulation layer positioned on the display area to protect the plurality of pixels; and a first path wire including one end connected to a second connecting pad of the plurality of connecting pads and the other end connected to the second common power wire and positioned on the encapsulation layer.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: May 12, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joo-Han Bae, Jung Ho Park, Jeong Kug Lee, Jae Won Choi
  • Publication number: 20200131041
    Abstract: Disclosed are a method of manufacturing graphene and an apparatus therefor. The method of manufacturing graphene and the apparatus therefor according to the present disclosure allow production of high-quality graphene in a simple manner in a short time without addition of a separate additive.
    Type: Application
    Filed: August 14, 2019
    Publication date: April 30, 2020
    Inventors: Ho Seong NA, Joo Young KIM, Min Soo LEE, Yong Won CHOI
  • Patent number: 10627416
    Abstract: The present invention relates to an aptasensor for detecting a female-specific trace of blood including an aptamer which is used as a biosensor and emits light as the aptamer is bound to the female-specific trace of blood, and a detection apparatus using the same. The aptasensor for detecting a trace of blood to discriminate genders from the trace of blood at a crime scene has a configuration in which the aptasensor emits light as the aptasensor is binding to the female-specific trace of blood, so that genders of a suspect and a victim is distinguished from each other at the crime scene.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: April 21, 2020
    Assignee: REPUBLIC OF KOREA(NATIONAL FORENSIC SERVICE DIRECTOR MINISTRY OF THE INTERIOR AND SAFETY)
    Inventors: Joo Young Kim, Pil Won Kang, Sang Ok Moon, Man Il Kim, Hye Hyeon Lee, Hye Lim Kim, Ki Won Park, Yang Han Lee, Byung Won Chun
  • Patent number: 10630217
    Abstract: An apparatus for controlling an inverter for driving a motor including a processor which includes: a current processor configured to generate a voltage command for allowing a current detection value, generated by measuring a current provided from an inverter to a motor, to follow a current command for driving the motor; a voltage modulator configured to generate a pulse width modulation signal for controlling on and off states of a switching element within the inverter with a predetermined switching frequency based on the voltage command; and a frequency determining processor configured to randomly change the switching frequency based on driving information of the motor.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: April 21, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yong Jae Lee, Tae Won Ha, Su Hyun Bae, Ho Joon Shin, Sung Kyu Kim, Joo Young Park
  • Publication number: 20200119559
    Abstract: An MMC converter linked to a HVDC system and a sub-module are proposed. The sub-module includes: first and second power semiconductor switches serially connected in the same direction, each including a semiconductor switch and a diode connected in anti-parallel to the semiconductor switch; a capacitor parallelly connected to the first and second power semiconductor switches serially connected; a first terminal connected to a first node between the first and second power semiconductor switches; a second terminal connected to a second node between the second power semiconductor switch and the capacitor; a third power semiconductor switch of which a side is connected to the second node, the third power semiconductor switch including a semiconductor switch and a diode connected in anti-parallel to the semiconductor switch; and a third terminal connected to a terminal of an AC grid system and connected to the other side of the third power semiconductor switch.
    Type: Application
    Filed: May 28, 2018
    Publication date: April 16, 2020
    Inventors: Jung Won HONG, Hong Ju JUNG, Sung Min OH, Hyun Ho YOO, Joo Yeon LEE
  • Patent number: 10611109
    Abstract: Provided is a manufacturing method of an optical film, which manufactures an optical film in which at least a first film and a second film are stacked, the method including: pressing the first film and the second film with the optical film by passing both the first film and the second film between a pair of pressing rolls; forming a slit line in a width direction of the optical film by cutting the second film without cutting the first film at a rear end of a connection portion when the connection portion is included, to which a unit film is connected by a connection member between the first film and the second film which are pressed in the pressing; and conveying the optical film by passing the optical film with the slit line in the slit forming between a pair of conveying rolls.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: April 7, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jeong Hwan Lee, Yun Seok Choe, Joo Sang Kim, Do Won Yang, Yong Gou Lee, Bong Su Jeung, Jea Han Ryoo
  • Publication number: 20200105854
    Abstract: An organic light emitting diode (OLED) display includes a first electrode, a pixel defining layer that at least partially exposes the first electrode, an organic light emitting layer on the first electrode, a thin-film encapsulation layer on the organic light emitting layer, and a light shielding member on the thin-film encapsulation the light shielding member overlapping the pixel defining layer. The organic light emitting layer includes a main area not overlapping the pixel defining layer and a sub area overlapping the pixel defining layer. The main area includes an open portion not overlapping the light shielding member and a shadow portion around the open portion overlapping the light shielding member.
    Type: Application
    Filed: August 23, 2019
    Publication date: April 2, 2020
    Inventors: Gun Hee KIM, Sang Ho PARK, Ju Won YOON, Seung Chan LEE, Joo Hee JEON
  • Patent number: 10589753
    Abstract: A warning system for a hearing-impaired person of a vehicle includes: a sound sensing unit disposed at a vehicle to sense sound outside of the vehicle; a database storing characteristic information of a plurality of specific sounds and visual information corresponding to the characteristic information of the plurality of specific sounds; an output unit outputting visual information corresponding to the plurality of specific sounds; and a controller extracting characteristic information of the sound sensed by the sound sensing units. In particular, the controller determines a type of the sensed sound by comparing the extracted characteristic information of the sensed sound with the characteristic information of the plurality of specific sounds stored in the database, and outputs visual information corresponding to the determined type of the sensed sound through the output unit.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: March 17, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Jun Young Kwon, Seong Hyeon Lee, Oh Sol Kwon, Joo Hwan Lee, Jong Won Kim, Hyeong Jun Park, Ji In Jung