Patents by Inventor Chang Heon Lee

Chang Heon 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).

  • Publication number: 20240132357
    Abstract: An embodiment of the present specification provides a method for preparing a catalyst for preparing a carbon nanotube, comprising: (a) dissolving a main catalyst precursor, a support precursor, a cocatalyst precursor and a precipitation inhibitor in a solvent to prepare a precursor solution; and (b) pyrolyzing the precursor solution by spraying the precursor solution into a reactor, wherein a mole fraction of the precipitation inhibitor to the cocatalyst precursor is 0.1 to 1.5.
    Type: Application
    Filed: October 19, 2023
    Publication date: April 25, 2024
    Applicant: KOREA KUMHO PETROCHEMICAL CO., LTD.
    Inventors: Myung Hoon JEONG, Hyun Tae KIM, Sang Hyo RYU, Chung Heon JEONG, Wan Sung LEE, Woo Ram JUNG, Chang Gu KANG
  • Patent number: 11956712
    Abstract: Electronic device includes first wireless communication interface; second wireless communication interface; and controller.
    Type: Grant
    Filed: January 10, 2022
    Date of Patent: April 9, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-woo Lee, Chang-heon Yoon, Jong-min Kim, Sang-hun Park, Sung-min So, Wha-seob Sim, Se-young Oh
  • Publication number: 20230358434
    Abstract: An air conditioner includes a discharge blade configured to move between a guide position at which a direction of air blown from a blower fan and discharged to an outlet is controlled, and a closing position at which the outlet is closed, wherein the discharge blade includes a plurality of blade holes through which the air is discharged through the discharge blade at the closing position, wherein the discharge blade moves between the guide position and the closing position and controls an air flow from the blower fan to a discharge plate or the outlet. Through this configuration, an air flow discharged to the outside of the housing can be controlled by operation of the discharge blade.
    Type: Application
    Filed: July 13, 2023
    Publication date: November 9, 2023
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sang Ki CHO, Ki Jun KIM, Dae Dong KIM, Chang Heon LEE, Moon Sun SHIN, Young Lae JO
  • Patent number: 11739976
    Abstract: An air conditioner includes a discharge blade configured to move between a guide position at which a direction of air blown from a blower fan and discharged to an outlet is controlled, and a closing position at which the outlet is closed, wherein the discharge blade includes a plurality of blade holes through which the air is discharged through the discharge blade at the closing position, wherein the discharge blade moves between the guide position and the closing position and controls an air flow from the blower fan to a discharge plate or the outlet. Through this configuration, an air flow discharged to the outside of the housing can be controlled by operation of the discharge blade.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: August 29, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Ki Cho, Ki Jun Kim, Dae Dong Kim, Chang Heon Lee, Moon Sun Shin, Young Lae Jo
  • Publication number: 20220059558
    Abstract: A semiconductor device comprises a substrate; an element isolation film that defines a first active region in the substrate; a first gate electrode on the first active region; a first source/drain region located inside the first active region between the element isolation film and the first gate electrode; and an isolation contact that extends in a vertical direction intersecting an upper face of the substrate, in the element isolation film. The isolation contact is configured to have a voltage applied thereto.
    Type: Application
    Filed: March 24, 2021
    Publication date: February 24, 2022
    Inventors: Hak Seon Kim, Byung Joo Go, Sung Kweon Baek, Jae Hwa Seo, Chang Heon Lee
  • Patent number: 11067298
    Abstract: Disclosed is an air conditioner to prevent deterioration of cooling or heating performance caused by re-introduction of cooling or heating air into a heat exchanger. The air conditioner includes a housing including an air discharge plate having a plurality of holes and an outlet, a heat exchanger located inside the housing, a blower fan configured to blow air heat-exchanged with the heat exchanger toward the air discharge plate or the outlet, a blade rotating between a guide position to guide a direction of air blown from the blower fan and discharged through the outlet and a closing position to close the outlet, wherein the blade includes a first blade and a second blade spaced apart from the first blade and configured to guide air blown from the blower fan toward the air discharge plate when the first blade is located at the closing position.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: July 20, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki Jun Kim, Dae Dong Kim, Se Woong Youn, Chang Heon Lee, Min Gu Jeon, Sang Ki Cho, Do-Hoon Kim, Jong Moon Lee, Jun Hwang, Keun Jeong Jang, Jung Won Kim, Se Joo Na, Bu Youn Lee, Hyeong Kyu Cho
  • Patent number: 11054152
    Abstract: An air conditioner includes a heat exchanger configured to exchange heat with air introduced into a housing and a blowing fan configured to blow the air which is heat-exchanged with the heat exchanger to outside of the housing. The air conditioner may control a first and a second doors configured to open or close a first and second blowing ports provided in the housing and a guide blade configured to control paths in the housing, so that the air conditioner may blow the air of various flow.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: July 6, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Ki Cho, Ki Jun Kim, Dae Dong Kim, Chang Heon Lee, Moon Sun Shin, Young Lae Jo
  • Publication number: 20210010711
    Abstract: An air conditioner includes a discharge blade configured to move between a guide position at which a direction of air blown from a blower fan and discharged to an outlet is controlled, and a closing position at which the outlet is closed, wherein the discharge blade includes a plurality of blade holes through which the air is discharged through the discharge blade at the closing position, wherein the discharge blade moves between the guide position and the closing position and controls an air flow from the blower fan to a discharge plate or the outlet. Through this configuration, an air flow discharged to the outside of the housing can be controlled by operation of the discharge blade.
    Type: Application
    Filed: September 25, 2020
    Publication date: January 14, 2021
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sang Ki CHO, Ki Jun KIM, Dae Dong KIM, Chang Heon LEE, Moon Sun SHIN, Young Lae JO
  • Patent number: 10788238
    Abstract: An air conditioner includes a discharge blade configured to move between a guide position at which a direction of air blown from a blower fan and discharged to an outlet is controlled, and a closing position at which the outlet is closed, wherein the discharge blade includes a plurality of blade holes through which the air is discharged through the discharge blade at the closing position, wherein the discharge blade moves between the guide position and the closing position and controls an air flow from the blower fan to a discharge plate or the outlet. Through this configuration, an air flow discharged to the outside of the housing can be controlled by operation of the discharge blade.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: September 29, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Ki Cho, Ki Jun Kim, Dae Dong Kim, Chang Heon Lee, Moon Sun Shin, Young Lae Jo
  • Patent number: 10777193
    Abstract: A system includes network interface, processor operatively connected to the network interface, and memory operatively connected to the processor. The memory stores a plurality of language models of a first language. The plurality of language models be different from one another. Each of the plurality of language models is provided for speakers whose native language is different from the first language. The memory further stores instructions that cause the processor to receive a user's speech data associated with a plurality of sample texts from an external electronic device, to perform automatic speech recognition (ASR) on the speech data using the plurality of language models, to select one language model from the plurality of language models based on results from the performed ASR, and to use the selected one language model as a default language model for speech of the user.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: September 15, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung In Lee, Min Seok Kwon, In Jong Rhee, Chang Heon Lee, Seok Yeong Jung
  • Patent number: 10767044
    Abstract: A polycarbonate resin composition of the present invention comprises: a polycarbonate resin; and a polycarbonate polyol comprising a terminal hydroxyl group and a repeat unit represented by Formula 1. The polycarbonate resin composition exhibits good properties in terms of color, impact resistance, stiffness and the like even after irradiation with ionizing radiation.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: September 8, 2020
    Assignee: Lotte Advanced Materials Co., Ltd.
    Inventors: Hyun Hye Jang, Chang Heon Lee, Woo Suk Chei, O Sung Kwon
  • Patent number: 10458673
    Abstract: An air conditioner includes a discharge blade configured to move between a guide position at which a direction of air blown from a blower fan and discharged to an outlet is controlled, and a closing position at which the outlet is closed, wherein the discharge blade includes a plurality of blade holes through which the air is discharged through the discharge blade at the closing position, wherein the discharge blade moves between the guide position and the closing position and controls an air flow from the blower fan to a discharge plate or the outlet. Through this configuration, an air flow discharged to the outside of the housing can be controlled by operation of the discharge blade.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: October 29, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Ki Cho, Ki Jun Kim, Dae Dong Kim, Chang Heon Lee, Moon Sun Shin, Young Lae Jo
  • Publication number: 20190219277
    Abstract: Disclosed is an air conditioner to prevent deterioration of cooling or heating performance caused by re-introduction of cooling or heating air into a heat exchanger. The air conditioner includes a housing including an air discharge plate having a plurality of holes and an outlet, a heat exchanger located inside the housing, a blower fan configured to blow air heat-exchanged with the heat exchanger toward the air discharge plate or the outlet, a blade rotating between a guide position to guide a direction of air blown from the blower fan and discharged through the outlet and a closing position to close the outlet, wherein the blade includes a first blade and a second blade spaced apart from the first blade and configured to guide air blown from the blower fan toward the air discharge plate when the first blade is located at the closing position.
    Type: Application
    Filed: November 15, 2018
    Publication date: July 18, 2019
    Inventors: Ki Jun KIM, Dae Dong KIM, Se Woong YOUN, Chang Heon LEE, Min Gu JEON, Sang Ki CHO, Do-Hoon KIM, Jong Moon LEE, Jun HWANG, Keun Jeong JANG, Jung Won KIM, Se Joo NA, Bu Youn LEE, Hyeong Kyu CHO
  • Publication number: 20190062550
    Abstract: A polycarbonate resin composition of the present invention comprises: a polycarbonate resin; and a polycarbonate polyol comprising a terminal hydroxyl group and a repeat unit represented by Formula 1. The polycarbonate resin composition exhibits good properties in terms of color, impact resistance, stiffness and the like even after irradiation with ionizing radiation.
    Type: Application
    Filed: October 12, 2016
    Publication date: February 28, 2019
    Applicant: LOTTE ADVANCED MATERIALS CO., LTD.
    Inventors: Hyun Hye JANG, Chang Heon LEE, Woo Suk CHEI, O Sung KWON
  • Publication number: 20190056120
    Abstract: An air conditioner includes a heat exchanger configured to exchange heat with air introduced into a housing and a blowing fan configured to blow the air which is heat-exchanged with the heat exchanger to outside of the housing. The air conditioner may control a first and a second doors configured to open or close a first and second blowing ports provided in the housing and a guide blade configured to control paths in the housing, so that the air conditioner may blow the air of various flow.
    Type: Application
    Filed: August 1, 2017
    Publication date: February 21, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Ki CHO, Ki Jun KIM, Dae Dong KIM, Chang Heon LEE, Moon Sun SHIN, Young Lae JO
  • Publication number: 20180374476
    Abstract: A system includes network interface, processor operatively connected to the network interface, and memory operatively connected to the processor. The memory stores a plurality of language models of a first language. The plurality of language models be different from one another. Each of the plurality of language models is provided for speakers whose native language is different from the first language. The memory further stores instructions that cause the processor to receive a user's speech data associated with a plurality of sample texts from an external electronic device, to perform automatic speech recognition (ASR) on the speech data using the plurality of language models, to select one language model from the plurality of language models based on results from the performed ASR, and to use the selected one language model as a default language model for speech of the user.
    Type: Application
    Filed: June 27, 2018
    Publication date: December 27, 2018
    Inventors: Jung In LEE, Min Seok KWON, In Jong RHEE, Chang Heon LEE, Seok Yeong JUNG
  • Patent number: 10158745
    Abstract: A vehicle connected to a terminal of a user to perform dialing includes a speech input unit that receives a speech of the user, a speech recognition unit that recognizes a command included in the received speech, a control unit that determines a preparation state for performing the dialing, and a display unit that displays information about the preparation state when preparation for performing the dialing is not completed.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: December 18, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Chang-Heon Lee, Hyun-woo Lee
  • Patent number: RE47536
    Abstract: An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving, by an audio processing apparatus, an audio signal including a first data of a first block encoded with rectangular coding scheme and a second data of a second block encoded with non-rectangular coding scheme; receiving a compensation signal corresponding to the second block; estimating a prediction of an aliasing part using the first data; and, obtaining a reconstructed signal for the second block based on the second data, the compensation signal and the prediction of aliasing part.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: July 23, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Hyen-O Oh, Chang Heon Lee, Hong Goo Kang, Jeungook Song
  • Patent number: RE48916
    Abstract: An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving, by an audio processing apparatus, an audio signal including a first data of a first block encoded with rectangular coding scheme and a second data of a second block encoded with non-rectangular coding scheme; receiving a compensation signal corresponding to the second block; estimating a prediction of an aliasing part using the first data; and, obtaining a reconstructed signal for the second block based on the second data, the compensation signal and the prediction of aliasing part.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: February 1, 2022
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Hyen-O Oh, Chang Heon Lee, Hong-Goo Kang, Jeungook Song
  • Patent number: RE49813
    Abstract: An apparatus for processing an audio signal and method thereof are disclosed. The present invention includes receiving, by an audio processing apparatus, an audio signal including a first data of a first block encoded with rectangular coding scheme and a second data of a second block encoded with non-rectangular coding scheme; receiving a compensation signal corresponding to the second block; estimating a prediction of an aliasing part using the first data; and, obtaining a reconstructed signal for the second block based on the second data, the compensation signal and the prediction of aliasing part.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: January 23, 2024
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Hyen-O Oh, Chang Heon Lee, Hong-Goo Kang, Jeungook Song