Patents by Inventor Tae-Jin Hwang

Tae-Jin Hwang 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: 12217415
    Abstract: A method of manufacturing a display device includes preparing a cover substrate assembly including a cover substrate, a protective film attached to a lower surface of the cover substrate, and an inspection pattern disposed between the cover substrate and the protective film, obtaining a first image by imaging the inspection pattern through an upper surface of the cover substrate, obtaining noise data by comparing a reference image of the inspection pattern with the first image, obtaining a second image by imaging the cover substrate assembly, obtaining a corrected image of the second image by reflecting the noise data in the second image, and detecting a defect of the cover substrate based on the corrected image of the second image.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: February 4, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae-Jin Hwang, Hyeongmin Ahn
  • Publication number: 20240192142
    Abstract: Disclosed are inspection apparatuses and methods. The inspection apparatus includes a light source configured to irradiate a beam to an inspection object including a first part and a second part different from the first part; an inspection module spaced apart from the inspection object and onto which a beam, whose path is changed after being irradiated to the inspection object, is incident; and a separator between the inspection object and the inspection module and through which at least a portion of the beam, whose path is changed, passes. The separator includes: a frame in which an opening is defined, and a separation member in the opening and configured to change a path of a beam, which passes through the separator.
    Type: Application
    Filed: September 13, 2023
    Publication date: June 13, 2024
    Inventors: TAE-JIN HWANG, SE-KWANG HAN, JAEMIN SON, SEONGHYEON CHEON
  • Publication number: 20240177114
    Abstract: Provided are a system for business process automation and a method thereof. The system according to some embodiments may include a connect manager configured to register and manage application programming interface (API) information for services, a process execution engine configured to execute a target business process comprising a particular service task, which is a task using a particular service provided by a service module, and a connect broker configured to acquire API information for the particular service, registered through the connect manager, during execution of the target business process in response to a request from the process execution engine, and process the particular service task by sending a request for the particular service to the service module using the acquired API information.
    Type: Application
    Filed: November 13, 2023
    Publication date: May 30, 2024
    Applicant: SAMSUNG SDS CO., LTD.
    Inventors: Young Sik JUNG, Moo Young CHO, Kang Hyeok LEE, Hyong Gook KIM, In Yong JANG, Chul Ho CHOI, Jeong Heon KIM, Ho Kyung YOO, Yeong Ho LEE, Kyung Ho CHO, Tae Jin HWANG, Jung Hee YOON, Hee Jong KIM
  • Patent number: 11624709
    Abstract: An adhesion defect detection apparatus includes an inspection window having a first dummy area, a second dummy area, and an inspection area disposed between the first dummy area and the second dummy area. A first shape changer is disposed on the inspection window. The first shape changer is configured to change a shape of the inspection window in a first direction. A second shape changer is disposed outside of both the first dummy area and the second dummy area. The second shape changer is configured to change a shape of the inspection window in a second direction that is perpendicular to the first direction.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: April 11, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventor: Tae Jin Hwang
  • Publication number: 20230101745
    Abstract: A method of manufacturing a display device includes preparing a cover substrate assembly including a cover substrate, a protective film attached to a lower surface of the cover substrate, and an inspection pattern disposed between the cover substrate and the protective film, obtaining a first image by imaging the inspection pattern through an upper surface of the cover substrate, obtaining noise data by comparing a reference image of the inspection pattern with the first image, obtaining a second image by imaging the cover substrate assembly, obtaining a corrected image of the second image by reflecting the noise data in the second image, and detecting a defect of the cover substrate based on the corrected image of the second image.
    Type: Application
    Filed: July 7, 2022
    Publication date: March 30, 2023
    Inventors: TAE-JIN HWANG, HYEONGMIN AHN
  • Patent number: 11271553
    Abstract: A buffer circuit configured to receive first and second input signals through first and second input transistors coupled to a first power voltage node, output a first output signal through a first output node and a second output signal through a second output node based on the first and second input signals. A load circuit is coupled among the first output node, the second output node, and a second power voltage node and a resistance value is adjusted based on at least one of the first and second output signals.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: March 8, 2022
    Assignee: SK hynix Inc.
    Inventors: Sun Ki Cho, Dong Uc Ko, Yang Ho Sur, Jun Yong Song, Sung Gil Jang, Hae Kang Jung, Min Sung Cheon, Chang Kyu Choi, Tae Jin Hwang
  • Publication number: 20220069813
    Abstract: A buffer circuit configured to receive first and second input signals through first and second input transistors coupled to a first power voltage node, output a first output signal through a first output node and a second output signal through a second output node based on the first and second input signals. A load circuit is coupled among the first output node, the second output node, and a second power voltage node and a resistance value is adjusted based on at least one of the first and second output signals.
    Type: Application
    Filed: February 9, 2021
    Publication date: March 3, 2022
    Applicant: SK hynix Inc.
    Inventors: Sun Ki Cho, Dong Uc Ko, Yang Ho Sur, Jun Yong Song, Sung Gil Jang, Hae Kang Jung, Min Sung Cheon, Chang Kyu Choi, Tae Jin Hwang
  • Publication number: 20210372934
    Abstract: An adhesion defect detection apparatus includes an inspection window having a first dummy area, a second dummy area, and an inspection area disposed between the first dummy area and the second dummy area. A first shape changer is disposed on the inspection window. The first shape changer is configured to change a shape of the inspection window in a first direction. A second shape changer is disposed outside of both the first dummy area and the second dummy area. The second shape changer is configured to change a shape of the inspection window in a second direction that is perpendicular to the first direction.
    Type: Application
    Filed: August 16, 2021
    Publication date: December 2, 2021
    Inventor: TAE JIN HWANG
  • Patent number: 11092554
    Abstract: An adhesion defect detection apparatus includes an inspection window having a first dummy area, a second dummy area, and an inspection area disposed between the first dummy area and the second dummy area. A first shape changer is disposed on the inspection window. The first shape changer is configured to change a shape of the inspection window in a first direction. A second shape changer is disposed outside of both the first dummy area and the second dummy area. The second shape changer is configured to change a shape of the inspection window in a second direction that is perpendicular to the first direction.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: August 17, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Tae Jin Hwang
  • Patent number: 10921840
    Abstract: A voltage generator includes a bias voltage generation circuit and a compensation circuit. The bias voltage generation circuit generates a first bias voltage based on a reference current and generates a second bias voltage based on the first bias voltage. The compensation circuit changes a voltage level of the first bias voltage based on the second bias voltage.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: February 16, 2021
    Assignee: SK hynix Inc.
    Inventor: Tae Jin Hwang
  • Patent number: 10847194
    Abstract: An input/output circuit includes a data buffer group configured to buffer data received through data lines, a data strobe buffer configured to buffer a data strobe signal to output a buffered data strobe clock, a digitally controlled delay line configured to output delay data by controlling skew of the buffered data according to a delay code, a data strobe clock output circuit configured to generate a delay data strobe clock in response to the buffered data strobe clock, a sampler configured to sample the delay data according to the delay data strobe clock to output sampled data, and a de-skew circuit configured to update the delay code according to the sampled data.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: November 24, 2020
    Assignee: SK hynix Inc.
    Inventors: Dong Hyun Kim, Dae Han Kwon, Kwan Su Shon, Soon Ku Kang, Jung Hyun Shin, Doo Bock Lee, Yo Han Jeong, Eun Ji Choi, Tae Jin Hwang
  • Publication number: 20200326741
    Abstract: A voltage generator includes a bias voltage generation circuit and a compensation circuit. The bias voltage generation circuit generates a first bias voltage based on a reference current and generates a second bias voltage based on the first bias voltage. The compensation circuit changes a voltage level of the first bias voltage based on the second bias voltage.
    Type: Application
    Filed: November 4, 2019
    Publication date: October 15, 2020
    Applicant: SK hynix Inc.
    Inventor: Tae Jin HWANG
  • Publication number: 20200240923
    Abstract: An adhesion defect detection apparatus includes an inspection window having a first dummy area, a second dummy area, and an inspection area disposed between the first dummy area and the second dummy area. A first shape changer is disposed on the inspection window. The first shape changer is configured to change a shape of the inspection window in a first direction. A second shape changer is disposed outside of both the first dummy area and the second dummy area. The second shape changer is configured to change a shape of the inspection window in a second direction that is perpendicular to the first direction.
    Type: Application
    Filed: December 11, 2019
    Publication date: July 30, 2020
    Inventor: TAE JIN HWANG
  • Publication number: 20190287587
    Abstract: An input/output circuit includes a data buffer group configured to buffer data received through data lines, a data strobe buffer configured to buffer a data strobe signal to output a buffered data strobe clock, a digitally controlled delay line configured to output delay data by controlling skew of the buffered data according to a delay code, a data strobe clock output circuit configured to generate a delay data strobe clock in response to the buffered data strobe clock, a sampler configured to sample the delay data according to the delay data strobe clock to output sampled data, and a de-skew circuit configured to update the delay code according to the sampled data.
    Type: Application
    Filed: November 19, 2018
    Publication date: September 19, 2019
    Inventors: Dong Hyun KIM, Dae Han KWON, Kwan Su SHON, Soon Ku KANG, Jung Hyun SHIN, Doo Bock LEE, Yo Han JEONG, Eun Ji CHOI, Tae Jin HWANG
  • Patent number: 10284156
    Abstract: An amplifier may include a differential pair circuit configured to generate an output signal according to a first input signal and a second input signal, a plurality of current sinks coupled between a ground terminal and the differential pair circuit, and a feedback circuit configured to sense a level of the output signal and generate a feedback signal. At least one of the plurality of current sinks is controlled according to the feedback signal.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: May 7, 2019
    Assignee: SK hynix Inc.
    Inventors: Dong Hyun Kim, Eun Ji Choi, Yo Han Jeong, Soon Ku Kang, Woo Jin Kang, Kwan Su Shon, Hyun Bae Lee, Tae Jin Hwang
  • Publication number: 20190077467
    Abstract: Disclosed is a cab locking device of a truck. The cab locking device includes a latch and a striker. The latch is mounted on a frame that is close to a vehicle body of the truck. The striker is mounted on a cab that is hinge-coupled to the frame to be tilted. The striker includes a body mounted on the cab, a locking pin mounted on the body to be selectively locked or unlocked by the latch according to whether the cab is tilted, and an impact absorbing cushion disposed between the latch and the body to maintain an interval between the body and the latch.
    Type: Application
    Filed: November 6, 2017
    Publication date: March 14, 2019
    Applicants: HYUNDAI MOTOR COMPANY, KIA Motors Corporation
    Inventors: Gi Yong Lee, Tae Jin Hwang, Jee Eung Lee
  • Publication number: 20180294784
    Abstract: An amplifier may include a differential pair circuit configured to generate an output signal according to a first input signal and a second input signal, a plurality of current sinks coupled between a ground terminal and the differential pair circuit, and a feedback circuit configured to sense a level of the output signal and generate a feedback signal. At least one of the plurality of current sinks is controlled according to the feedback signal.
    Type: Application
    Filed: August 3, 2017
    Publication date: October 11, 2018
    Applicant: SK hynix Inc.
    Inventors: Dong Hyun KIM, Eun Ji CHOI, Yo Han JEONG, Soon Ku KANG, Woo Jin KANG, Kwan Su SHON, Hyun Bae LEE, Tae Jin HWANG
  • Patent number: 9653629
    Abstract: The present invention relates to an exclusive alloy substrate material for CIGS solar cells. Particularly, the present invention provides a substrate material having a thermal expansion coefficient similar to that of a CIGS layer. The substrate material according to the present invention may prevent damage such as interlayer separation due to differing thermal expansion coefficients from occurring because the substrate material has a thermal expansion coefficient similar to that of the CIGS layer.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: May 16, 2017
    Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Tai Hong Yim, Heung Yeol Lee, Tae Jin Hwang, Young Sik Song, Yong Ki Cho, Min Su Lee, Yoon Ho Han
  • Patent number: 9595498
    Abstract: A semiconductor memory device includes a semiconductor circuit substrate having a chip pad forming region. A pair of data lines are formed on the semiconductor circuit substrate at one side of the chip pad region. The pair of data lines extend along a direction that the chip pad region of the semiconductor circuit substrate extends. The pair of data lines are arranged to be adjacent to each other and receive a pair of differential data signals. A power supply line is formed on the semiconductor circuit substrate at the other side of the chip pad region. The power supply line extends along the direction that the chip pad region of the semiconductor circuit substrate extends, and the power supply line receives power.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: March 14, 2017
    Assignee: SK HYNIX INC.
    Inventors: Chang Kun Park, Seong Hwi Song, Yong Ju Kim, Sung Woo Han, Hee Woong Song, Ic Su Oh, Hyung Soo Kim, Tae Jin Hwang, Hae Rang Choi, Ji Wang Lee, Jae Min Jang
  • Patent number: 9479170
    Abstract: A buffer circuit includes an amplification unit suitable for sensing and amplifying an input signal and a reference voltage, a buffer enable unit suitable for enabling the amplification unit based on a buffer enable signal, and a buffer enable signal generation unit suitable for generating the buffer enable signal based on a first or second operation control signal, selected according to a high voltage detection signal.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: October 25, 2016
    Assignee: SK Hynix Inc.
    Inventor: Tae Jin Hwang