Patents by Inventor Sung-Chan Choi

Sung-Chan Choi 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: 12269965
    Abstract: A resin composition according to an exemplary embodiment of the present disclosure includes a first polyol represented by Chemical Formula 1, a second polyol represented by Chemical Formula 2, and a polyisocyanate, wherein the first polyol and the second polyol have a linear structure without a side chain. each of Y1 to Y4 is H or OH—, at least one of Y1 and Y2 is OH—, at least one of Y3 and Y4 is OH—, each of X1 to X3 is independently a C1-C20 alkyl group, the alkyl group includes or does not include an unsaturated bond, —CH2— in the alkyl group may be substituted or unsubstituted with —CHOH—, and each of n and m is independently 1 to 200.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: April 8, 2025
    Assignees: Samsung Display Co., Ltd., Samhwa Paints Industries Co., Ltd.
    Inventors: Sung Kim, Hyun Sook Kim, Sung-Chan Jo, Kyung Lae Rho, Soo Im Jeong, Seung Kyu Lee, Jang Hwan Jeong, Jae Ho Choi, Soon Jong Kim, Seong Gea Kim, Jae Duck Jung, Dong Hyeok Oh, Kyoung Seok Cho
  • Publication number: 20250093262
    Abstract: Disclosed are an imaging device for correcting and reconstructing a target image in a scattering medium using a multiple scattering tracing algorithm based on a reflection matrix and a method thereof. According to an embodiment of the present disclosure, the imaging device corrects and reconstructs an image of a target object located deep inside a scattering medium such as a biological tissue by tracing a multiple scattering trajectory using a time-resolved reflection matrix obtained from an imaging device that uses a time-resolved light source and then correcting it.
    Type: Application
    Filed: September 9, 2024
    Publication date: March 20, 2025
    Inventors: Won Shik CHOI, Sung Sam KANG, Seok Chan YOON
  • Patent number: 12244053
    Abstract: The present disclosure relates to an antenna RF module, an RF module assembly including the antenna RF modules, and an antenna apparatus including the RF module assembly. Particularly, the antenna RF module includes an RF module, a radiation element module arranged on a first side of the RF filter, and an amplification unit board arranged on a second side of the RF filter, an analog amplification element being mounted on the amplification unit board. A plurality of antenna RF modules constitute the RF module assembly, and the RF module assembly and an antenna housing constitute the antenna apparatus. Accordingly, a radome that interrupts dissipation of heat to in front of an antenna is unnecessary, and heat generated from heat generating elements of the antenna apparatus is spatially separated. Thus, it is possible that the heat is dissipated in a distributed manner toward the front and rear directions of the antenna apparatus. The effect of greatly improving performance in heat dissipation can be achieved.
    Type: Grant
    Filed: April 16, 2023
    Date of Patent: March 4, 2025
    Assignee: KMW INC.
    Inventors: Duk Yong Kim, Young Chan Moon, Nam Shin Park, Sung Ho Jang, Jae Hong Kim, Joon Hyong Shim, Bae Mook Jeong, Min Seon Yun, Sung Hwan So, Yong Won Seo, Oh Seog Choi, Kyo Sung Ji, Chi Back Ryu, Seong Min Ahn, Jae Eun Kim
  • Patent number: 12227478
    Abstract: Provided are a process for preparing (3R,4R)-1-benzyl-N,4-dimethylpiperidin-3-amine or a salt thereof, which is an intermediate useful for the preparation of tofacitinib, an intermediate used in the process, i.e., isopropanol solvate of methyl ((3R,4R)-1-benzyl-4-methylpiperidin-3-yl)carbamate dibenzoyl-L-tartrate, an intermediate, having excellent stability, useful for the preparation of tofacitinib, i.e., (3R,4R)-1-benzyl-N,4-dimethylpiperidin-3-amine acetate, and a process for preparing tofacitinib or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: February 18, 2025
    Assignee: YUHAN CORPORATION
    Inventors: Sang-Ho Oh, Doo-Byung Lee, Kyoung-Chan Kwon, Sang-Won Kim, Hyo-Ick Hwang, Kyeong-Sill Lee, Ik-Su Jo, Ji-Hye Choi, Sung-Hee Cho, Su-Young Lee
  • Patent number: 12210384
    Abstract: A display device includes a display panel; a first digitizer layer disposed on the display panel; a second digitizer layer disposed on the display panel and separated from the first digitizer layer; a first plate member disposed on the first digitizer layer; and a second plate member disposed on the second digitizer layer, wherein each of the first plate member and the second plate member includes a plurality of plate portions and one or more hinge portions configured to rotatably connect the plurality of plate portions to each other.
    Type: Grant
    Filed: July 5, 2023
    Date of Patent: January 28, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Woo Seo, So Jeong La, Dong Jin Park, Jai Ku Shin, Seok Chan Lee, Sung Chul Choi, Ji Hye Shin
  • Publication number: 20250023237
    Abstract: According to an embodiment of the present disclosure, provided is a radiation element structure arranged on a reflective plate, comprising: a radiation unit including a dielectric portion made from plastic material and first to fourth radiation arms arranged in a four-sided symmetrical structure on one surface of the dielectric portion; and a plurality of balun units, including a balun body connecting the reflective plate and the radiation unit, a feed line disposed on the upper surface of the balun body to feed the radiation unit, and a ground disposed on the lower surface of the balun body.
    Type: Application
    Filed: September 27, 2024
    Publication date: January 16, 2025
    Applicant: KMW INC.
    Inventors: Young Chan MOON, Sung Hwan SO, Kwang Seok CHOI, Seong Man KANG, Hun Jung JUNG, Seung Han SON, Yong Sang LEE, Oh Seog CHOI
  • Patent number: 12147472
    Abstract: There is provided a data interworking method between a oneM2M system and an NGSI-LD system. The data interworking method according to an embodiment of the present disclosure includes: retrieving, by an IPE, resources in the oneM2M system that perform data interworking with the NGSI-LD system; retrieving labels of the retrieved resources; acquiring a mapping-rule from the retrieved labels; and storing the acquired mapping-rule. Accordingly, data interworking between data platforms using different standards is performed more easily, so that technology may go one step further to the goal of interconnecting and servicing all things in a global environment as IoT ultimately pursues.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: November 19, 2024
    Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Seong Yun Kim, Sung Chan Choi, Jong Hong Park, Sung Wook Jung
  • Publication number: 20240238153
    Abstract: The present disclosure relates to a hybrid massage module of a massage device. The hybrid massage module according to the present disclosure may include: a module base provided in a massage device; an actuator provided at the module base so as to provide power for at least one from among vibration, linear movement, rotational movement, and massage position adjustment for massaging of the body; a coupling bracket connected to the actuator so as to transmit power of the actuator; a unit bracket provided at the coupling bracket so as to be rotatable around a hinge shaft; an elastic member for elastically supporting the unit bracket with respect to the coupling bracket; a sample member rotatably provided at the unit bracket so as to apply acupressure to the body while rolling along body parts of the user; and a locking unit for locking or unlocking the unit bracket to or from the coupling bracket by means of a control signal applied from a control unit of the massage device.
    Type: Application
    Filed: December 19, 2022
    Publication date: July 18, 2024
    Inventors: Ju Song HUR, Sung Chan CHOI
  • Patent number: 12005019
    Abstract: Provided is a massage module and a massage device including same. The massage module may include: a procedure member including an upper finger member and a lower finger member cooperating with the upper finger member; and a cam driving part connected to the upper finger member so as to move the upper finger member in the vertical direction, so that the upper finger member and the lower finger member are away from or close to each other.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: June 11, 2024
    Assignee: BODYFRIEND CO., LTD.
    Inventors: Sung Chan Choi, Cheul Kyu Jin, Myeong Jin You, Gi Won Um, Jong Sick Park
  • Publication number: 20240184824
    Abstract: There is provided a data interworking method between a oneM2M system and an NGSI-LD system. The data interworking method according to an embodiment of the present disclosure includes: retrieving, by an IPE, resources in the oneM2M system that perform data interworking with the NGSI-LD system; retrieving labels of the retrieved resources; acquiring a mapping-rule from the retrieved labels; and storing the acquired mapping-rule. Accordingly, data interworking between data platforms using different standards is performed more easily, so that technology may go one step further to the goal of interconnecting and servicing all things in a global environment as IoT ultimately pursues.
    Type: Application
    Filed: October 19, 2021
    Publication date: June 6, 2024
    Applicant: Korea Electronics Technology Institute
    Inventors: Seong Yun KIM, Sung Chan CHOI, Jong Hong PARK, Sung Wook JUNG
  • Publication number: 20220257453
    Abstract: A massage module according to an embodiment includes: a support plate including a circular opening therein; a massage body provided in the circular opening of the support plate; and a rotating mechanism for rotating the massage body relative to the support plate, wherein the massage body includes: a massage unit which provides a massage to a user through mechanical stimulation; a rotating plate provided to be rotatably moved relative to the support plate by the rotating mechanism; and a moving mechanism provided in the rotating plate to move the massage unit in a direction perpendicular to the rotation plane of the rotating plate. The rotating plate includes a through-opening through which the moving mechanism can pass, and the moving mechanism can pass through the through-opening to move the massage unit between a first position and a second position.
    Type: Application
    Filed: August 13, 2020
    Publication date: August 18, 2022
    Inventors: Gi Won UM, Ji Hyoung LIM, Sung Chan CHOI, Deok Hyun KONG
  • Patent number: 11205049
    Abstract: A method for managing semantic information on an M2M/IoT platform is provided. The method for managing semantic information according to an embodiment of the present invention stores semantic data in the first attribute of an M2M resource and updates a part of the semantic data stored in the first attribute. Accordingly, efficient management of semantic information on an M2M/IoT platform is possible, and particularly a partial update of the semantic information can be performed.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: December 21, 2021
    Assignee: Korea Electronics Technology Institute
    Inventors: Min Woo Ryu, Jae Ho Kim, Il Yeup Ahn, Jae Seok Yun, Sung Chan Choi
  • Publication number: 20200375842
    Abstract: Provided is a massage module and a massage device including same. The massage module may include: a procedure member including an upper finger member and a lower finger member cooperating with the upper finger member; and a cam driving part connected to the upper finger member so as to move the upper finger member in the vertical direction, so that the upper finger member and the lower finger member are away from or close to each other.
    Type: Application
    Filed: August 10, 2018
    Publication date: December 3, 2020
    Inventors: Sung Chan CHOI, Cheul Kyu JIN, Myeong Jin YOU, Gi Won UM, Jong Sick PARK
  • Publication number: 20190294478
    Abstract: A method for validating the validity of a group member of a virtual resource is provided. A method for validating the validity of a group according to an embodiment of the present invention obtains parent resource type information of a resource designated by a group member ID included in a group generation request and validates the validity of the group by using the obtained parent resource information. Accordingly, the validity of a virtual resource as a group member can be validated.
    Type: Application
    Filed: March 23, 2017
    Publication date: September 26, 2019
    Inventors: Seung Myeong JEONG, Il Yeup AHN, Jae Ho KIM, Sung Chan CHOI, Nak Myoung SUNG, Jae Seok YUN
  • Publication number: 20190197108
    Abstract: A method for managing semantic information on an M2M/IoT platform is provided. The method for managing semantic information according to an embodiment of the present invention stores semantic data in the first attribute of an M2M resource and updates a part of the semantic data stored in the first attribute. Accordingly, efficient management of semantic information on an M2M/IoT platform is possible, and particularly a partial update of the semantic information can be performed.
    Type: Application
    Filed: May 2, 2017
    Publication date: June 27, 2019
    Applicant: Korea Electronics Technology Institute
    Inventors: Min Woo RYU, Jae Ho KIM, Il Yeup AHN, Jae Seok YUN, Sung Chan CHOI
  • Publication number: 20190133875
    Abstract: A leg massage device includes a calf massage module and an up/down movement module to move the calf massage module up and down. The calf massage module includes a unit massage module including a massage module plate, a moving roller installed on the massage module plate to move up and down along a guide surface, and a calf massage roller mounted on the massage module plate to massage the user's calf. The up/down movement module includes a driving link unit connected to the massage module plate to push up or pull down the massage module plate and a driving power source configured to provide power to the driving link unit.
    Type: Application
    Filed: July 27, 2018
    Publication date: May 9, 2019
    Inventors: Sung Chan CHOI, Cheulkyu JIN, Myeong Jin YOU, Giwon UM
  • Patent number: 10091134
    Abstract: An open M2M system and a method are provided. A method for managing resources according to an exemplary embodiment of the present invention includes: registering resources existing in a first domain at a second domain; and discovering metadata of a desired resource in the second domain. Accordingly, information management and sharing can be optimized, and registration and discovery of resources can be supported to be performed on a global scale.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: October 2, 2018
    Assignee: Korea Electronics Technology Institute
    Inventors: Sung Chan Choi, Jae Ho Kim, Kwang Ho Won, Sang Shin Lee, Il Yeup Ahn, Min Hwan Song, Jae Seok Yun
  • Patent number: 10003908
    Abstract: A method and system for allocating device object identifier (OID) in open machine-to-machine (m2m) system and application system applying the same are disclosed. In one aspect, the method includes generating, at a hardware server device, an OID of a first computing device, wherein the OID includes a first arc identifying a manufacturer of the first computing device, a second arc identifying a model number of the first computing device and a third arc identifying a serial number of the first computing device. The method also includes allocating, at the hardware server device, the generated OID to the first computing device.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: June 19, 2018
    Assignee: Korea Electronics Technology Institute
    Inventors: Sung Chan Choi, Jae Ho Kim, Jae Seok Yun, Kwang Ho Won, Sang Shin Lee, Il Yeup Ahn, Min Hwan Song, Jeong Wook Seo
  • Patent number: 9756535
    Abstract: A method of communication for a terminal in a content-centric network is provided. The method includes suspending a data message associated with a content from being provided to a face before a handover when the handover is expected to occur in the terminal that requests the content, and transmitting, to a hub, a new interest message after the handover associated with the content so that the hub may provide the data message associated with the content to the face after the handover.
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: September 5, 2017
    Assignee: Samsung Electronis Co., Ltd.
    Inventors: Ji Hoon Lee, Myeong Wuk Jang, Jae Hoon Kim, Do Jun Byun, Joong Hong Park, Sung Chan Choi
  • Patent number: 9632130
    Abstract: An apparatus and method for detecting a cable fault which simultaneously apply a plurality of measurement frequencies mutually orthogonal to a cable and estimate reflection coefficients at the measurement frequencies using filters for filtering only the respective measurement frequencies to reduce a time taken to detect a cable fault.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: April 25, 2017
    Assignee: INNOWIRELESS CO., LTD.
    Inventors: Jin Soup Joung, Sung Chan Choi, Yong Hoon Lim, Kyoung Hwan Ju, Hyo Bin Yim