Patents by Inventor In Chang Hwang

In Chang 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).

  • Publication number: 20240118196
    Abstract: In the case of a gas in which several gases are mixed, a type and concentration of the gas may be incorrectly measured when measured using only an optical band-pass filter. The invention of the present application is directed to providing a technology in which a plurality of broadband band-pass filters having overlapping regions are provided to calculate a magnitude of absorption for each wavelength band for light passing through each broadband band-pass filter, thereby identifying the presence of a gas of interest and the presence of a gas other than the gas of interest.
    Type: Application
    Filed: September 8, 2023
    Publication date: April 11, 2024
    Inventors: Cheol Woo NAM, Byung Yul MOON, Eung Yul KIM, Jae Hwan KIM, Chun Ho SHIN, Kwang Hun PARK, Myun Gu CHOI, Chang Hwang CHOI, Yong Geol KIM, Jae Min JEON
  • Patent number: 11949008
    Abstract: A semiconductor structure is provided. The semiconductor structure includes a substrate having a front side and a back side opposite the front side. The semiconductor structure also includes a first contact metal layer disposed on the front side of the substrate. The semiconductor structure further includes a III-V compound semiconductor layer disposed between the substrate and the first contact metal layer. Moreover, the semiconductor structure includes a via hole penetrating through the substrate and the III-V compound semiconductor layer from the back side of the substrate. The bottom of the via hole is defined by the first contact metal layer, and the first contact metal layer includes molybdenum, tungsten, iridium, palladium, platinum, cobalt, ruthenium, osmium, rhodium, rhenium, or a combination thereof.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: April 2, 2024
    Assignee: WIN SEMICONDUCTORS CORP.
    Inventors: Chang-Hwang Hua, Chia-Hao Chen
  • Patent number: 11945276
    Abstract: The present disclosure discloses a preview vehicle height control system and a method of controlling the same. The system includes a monitoring device configured to detect the road surface condition of a driving path of a vehicle, an active suspension configured to adjust a vehicle height, a memory configured to store a plurality of data maps distinguished based on a type of bump, each data map having a vehicle dynamic characteristic as an input and a tuning factor as an output, and a controller configured to derive the tuning factor based on a data map, among the plurality of data maps of the memory, corresponding to the bump detected by the monitoring device, derive a target vehicle height in a form of a Gaussian distribution by substituting the tuning factor, and control the active suspension to follow the derived target vehicle height.
    Type: Grant
    Filed: August 19, 2022
    Date of Patent: April 2, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, FOUNDATION FOR RESEARCH AND BUSINESS SEOUL NATIONAL UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Youngil Sohn, Min Jun Kim, Sang Woo Hwang, Sehyun Chang, Jun Ho Seong, Yong Hwan Jeong, Seong Jin Yim
  • Patent number: 11944504
    Abstract: The present invention relates to an automatic tension measurer, comprising: a band lengthily formed in a longitudinal direction; a main body formed to allow the band to be guided thereinto such that one-side end portion of the band is fixed and the other-side end portion thereof is drawn to the outside; a marking part implemented in the main body, and formed so as to enable marking in the band at a specific position in response to the tension applied to the band; and a stopper formed in the main body, and stopping the band at a specific position.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: April 2, 2024
    Assignee: JSR MEDICAL CO., LTD.
    Inventors: Jae Hwang Kim, Min Ho Jung, Chang Young Chae
  • Publication number: 20240100898
    Abstract: A suspension includes a knuckle to which a wheel of a vehicle is fastened, a steering drive portion connected to the knuckle, a lower arm positioned at a lower end portion of the steering drive portion and including a first end portion connected to the knuckle and a second end portion connected to a vehicle body frame, a connecting link including a first end portion connected to an upper end portion of the steering drive portion, an upper arm connected to a second end portion of the connecting link, a damper connecting the upper arm and the vehicle body frame, and a push rod including a first end portion connected to the upper arm and a second end portion connected to the lower arm.
    Type: Application
    Filed: April 5, 2023
    Publication date: March 28, 2024
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Sehyun CHANG, Youngil SOHN, Jun Ho SEONG, Min Jun KIM, Sang Woo HWANG
  • Patent number: 11939173
    Abstract: A transportation head for a microchip transfer device capable of minimizing mechanical and chemical damage to a microchip, a microchip transfer device having same, and a transfer method thereby, and the transportation head includes a head body having a pickup area and a dummy area; a first protruding pin disposed in the pickup area of the head body; and a liquid droplet attached to the first protruding pin.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: March 26, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dahl-Young Khang, Sung-Hwan Hwang, Jia Lee, Sung-Soo Yoon, Su Seok Choi, Kiseok Chang, Jeong Min Moon, Soon Shin Jung, Sungpil Ryu, Jihwan Jung
  • Publication number: 20240092134
    Abstract: A vehicle-height control system of an independent corner module, includes a suspension link connected to a wheel and configured to be rotated according to upward-downward displace of the wheel, a gear unit connected to a vehicle body and a rotational center portion of the suspension link and configured to receive a rotation force from the suspension link, a control torsion bar, a first end portion thereof being connected to the gear unit and the second end portion thereof being connected to a torsion variation unit, the torsion variation unit applying a drive force to adjust a height of the control torsion bar and to maintain the adjusted height, and a controller connected to the torsion variation unit and adjusting the height of the control torsion bar.
    Type: Application
    Filed: March 28, 2023
    Publication date: March 21, 2024
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Sehyun CHANG, Sang Woo HWANG, Min Jun KIM, Youngil SOHN
  • Publication number: 20240079485
    Abstract: A high electron mobility transistor device including a channel layer, a first barrier layer, and a P-type gallium nitride layer is provided. The first barrier layer is disposed on the channel layer. The P-type gallium nitride layer is disposed on the first barrier layer. The first thickness of the first barrier layer located directly under the P-type gallium nitride layer is greater than the second thickness of the first barrier layer located on two sides of the P-type gallium nitride layer.
    Type: Application
    Filed: October 27, 2022
    Publication date: March 7, 2024
    Applicant: Powerchip Semiconductor Manufacturing Corporation
    Inventors: Jih-Wen Chou, Chih-Hung Lu, Bo-An Tsai, Zheng-Chang Mu, Po-Hsien Yeh, Robin Christine Hwang
  • Publication number: 20230365035
    Abstract: A latch assembly capable of maintaining a locking state includes a locking plate including a striker selectively disposed in and out of the locking plate, and rotatably provided, a pawl engaged with the locking plate to prevent rotation of the locking plate, maintaining a locking state in which the locking plate restrains the striker, and separated from the locking plate when being rotated by a cable coupled to the pawl to release restraint of the striker from the locking plate, being in an unlocking state, and a locking maintenance member configured to prevent the rotation of the pawl and the rotation of the locking plate in the locking state, and enable the rotation of the pawl and the rotation of the locking plate when starting to be unlocked from the locking state, which is provided between the pawl and the locking plate.
    Type: Application
    Filed: February 2, 2023
    Publication date: November 16, 2023
    Applicants: Hyundai Motor Company, Kia Corporation, Daechang Seat Co., LTD-Dongtan, Hyundai Transys Inc.
    Inventors: Hyeok-Seung LEE, Sang-Do PARK, Ho-Suk JUNG, Mu-Young KIM, Jun-Hwan LEE, Chan-Ho JUNG, Jun-Young YUN, Dong-Jin KIM, In-Chang HWANG
  • Publication number: 20230317633
    Abstract: A semiconductor chip includes an active device and a passive device formed over a substrate. A passivation layer covers the active device and the passive device. A barrier structure surrounds the active device. A ceiling layer is formed across the barrier structure over the active device. The ceiling layer has an opening exposing the barrier structure.
    Type: Application
    Filed: March 30, 2022
    Publication date: October 5, 2023
    Inventors: Chang-Hwang HUA, Chun-Han SONG, Rong-Hao SYU, Hsi-Tsung LIN, Shu-Hsiao TSAI
  • Publication number: 20230126870
    Abstract: A transistor device includes a substrate and a gate structure. The gate structure is disposed on the substrate. The gate structure includes a first metal layer and a refractory metal layer disposed on the first metal layer, wherein the first metal layer is disconnected and the refractory metal layer is disconnected.
    Type: Application
    Filed: October 17, 2022
    Publication date: April 27, 2023
    Inventors: Chang-Hwang HUA, Shu-Hsiao TSAI, Rong-Hao SYU, Chun-Han SONG, Pei-Ying WU, Zong-Zheng YAN
  • Patent number: 11505096
    Abstract: The present disclosure relates to a reclining device for a seat, which can adjust a seatback at various angles through movement of a striker installed in a vehicle body. The reclining device for a seat includes a latch installed on a side of a seatback and configured to be rotated together with the seatback, and a striker module in which the latch is engaged with a striker installed in a vehicle body, where the striker moves in a certain section overlapping a rotation trajectory of the latch in a state where the latch is engaged and reclines the seatback together with the latch.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: November 22, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, DAECHANG SEAT CO., LTD-DONGTAN
    Inventors: Suk Won Hong, Jong Seok Han, Jun Yong Kim, Sang Do Park, Sang Man Seo, Sung Hak Hong, Myung Soo Lee, In Chang Hwang, Kyoung Min Cho
  • Patent number: 11472129
    Abstract: A cap and a method for forming the same are provided. An integrally formed outer layer of fabric and an integrally formed moldable layer are adhesively bonded together to form a moldable panel. A curved edge of the moldable panel is then formed by a mold. After that, the moldable panel and at least one second panel are connected to form a crown, to which a peak is subsequently connected to form the cap. Once the curved edge of the moldable panel is formed by heating and pressure application through the mold, the integrally formed moldable layer keeps the moldable panel in shape, so there is no need to support the outer layer of fabric and curve, for example, the front panel with two pieces of buckram that are stitched together, as is conventionally required.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: October 18, 2022
    Inventor: Ya-Chang Hwang
  • Patent number: 11472324
    Abstract: A combination structure of a seat frame includes: a first and a second side cushion frames installed on a first and a second sides of a seat, and configured to slide forward and rearward, wherein the first and the second sides of the seat are opposite to each other; a center cushion frame provided between the side cushion frames and having a first side fixed to the first side cushion frame; and a support guide device connected between a second side of the center cushion frame and the second side cushion frame, and configured to guide a sliding movement of each of the second side cushion frame and the center cushion frame while supporting weights of the second side cushion frame and the center cushion frame.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: October 18, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, Daechang Seat Co., LTD-Dongtan, Hyundai Transys Inc.
    Inventors: Min Ju Lee, Seung Hyun Kim, Byung Yong Choi, Sang Hyun Lee, Seon Chae Na, Chan Ki Cho, In Chang Hwang, Dong Hwan Kim, Young Woon Choi, Jae Jin Lee
  • Publication number: 20220297578
    Abstract: A railess variable seatback type rear seat includes: a linear movement device configured to convert a rotation of a motor into a linear movement; a sliding movement device configured to convert the linear movement into a sliding movement in which a seat cushion is pushed forward or backward; and a reclining angle change device configured to convert the sliding movement into a reclining movement, and to fold a seatback, which is connected to the seat cushion, forward or to recline the seatback backward.
    Type: Application
    Filed: July 20, 2021
    Publication date: September 22, 2022
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation, Daechang Seat Co.,LTD-Dongtan, Hyundai Transys Inc.
    Inventors: Seung-Hyun KIM, Sang-Hyun LEE, Min-Ju LEE, Byung-Yong CHOI, Chan-Ho JUNG, Seon-Chae NA, Young-Woon CHOI, Jae-Jin LEE, Dong-Hwan KIM, In-Chang HWANG
  • Publication number: 20220211137
    Abstract: A cap and a method for forming the same are provided. An integrally formed outer layer of fabric and an integrally formed moldable layer are adhesively bonded together to form a moldable front panel. A curved front side of the front panel is then formed by a mold. After that, the front panel and a plurality of side panels are connected to form a crown, and a peak is subsequently connected to the front panel of the crown to form the cap. Once the curved front side of the front panel is formed by heating and pressure application through the mold, the integrally formed moldable layer keeps the front panel in shape, so there is no need to support the outer layer of fabric and curve the front panel with two pieces of buckram that are stitched together, as is conventionally required.
    Type: Application
    Filed: January 4, 2021
    Publication date: July 7, 2022
    Inventor: YA-CHANG HWANG
  • Publication number: 20220208999
    Abstract: A semiconductor structure is provided. The semiconductor structure includes a substrate having a front side and a back side opposite the front side. The semiconductor structure also includes a first contact metal layer disposed on the front side of the substrate. The semiconductor structure further includes a III-V compound semiconductor layer disposed between the substrate and the first contact metal layer. Moreover, the semiconductor structure includes a via hole penetrating through the substrate and the III-V compound semiconductor layer from the back side of the substrate. The bottom of the via hole is defined by the first contact metal layer, and the first contact metal layer includes molybdenum, tungsten, iridium, palladium, platinum, cobalt, ruthenium, osmium, rhodium, rhenium, or a combination thereof.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Inventors: Chang-Hwang HUA, Chia-Hao CHEN
  • Publication number: 20220184896
    Abstract: A cap and a method for forming the same are provided. An integrally formed outer layer of fabric and an integrally formed moldable layer are adhesively bonded together to form a moldable panel. A curved edge of the moldable panel is then formed by a mold. After that, the moldable panel and at least one second panel are connected to form a crown, to which a peak is subsequently connected to form the cap. Once the curved edge of the moldable panel is formed by heating and pressure application through the mold, the integrally formed moldable layer keeps the moldable panel in shape, so there is no need to support the outer layer of fabric and curve, for example, the front panel with two pieces of buckram that are stitched together, as is conventionally required.
    Type: Application
    Filed: June 15, 2021
    Publication date: June 16, 2022
    Inventor: YA-CHANG HWANG
  • Publication number: 20220153174
    Abstract: A combination structure of a seat frame includes: a first and a second side cushion frames installed on a first and a second sides of a seat, and configured to slide forward and rearward, wherein the first and the second sides of the seat are opposite to each other; a center cushion frame provided between the side cushion frames and having a first side fixed to the first side cushion frame; and a support guide device connected between a second side of the center cushion frame and the second side cushion frame, and configured to guide a sliding movement of each of the second side cushion frame and the center cushion frame while supporting weights of the second side cushion frame and the center cushion frame.
    Type: Application
    Filed: June 7, 2021
    Publication date: May 19, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, Daechang Seat Co.,LTD-Dongtan, Hyundai Transys Inc.
    Inventors: Min Ju LEE, Seung Hyun KIM, Byung Yong CHOI, Sang Hyun LEE, Seon Chae NA, Chan Ki CHO, In Chang HWANG, Dong Hwan KIM, Young Woon CHOI, Jae Jin LEE
  • Publication number: 20220111770
    Abstract: An apparatus for adjusting a seat of a vehicle includes a seat back frame, a cushion frame that is moved forward and backward by a motor driving unit, a cushion hinge part connecting the seat back frame and the cushion frame and rotating according to the movement of the cushion frame to adjust the angle of the seat back frame, and a seat back hinge part connecting the seat back frame and the vehicle body and rotating according to the movement of the seat back frame.
    Type: Application
    Filed: March 3, 2021
    Publication date: April 14, 2022
    Inventors: Min Ju Lee, Seunghyun Kim, Byung Yong Choi, Sanghyun Lee, Seon Chae Na, Chan Ki Cho, In Chang Hwang, Donghwan Kim, Youngwoon Choi, Jaejin Lee