Patents by Inventor Chul Choi

Chul 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).

  • Publication number: 20230099705
    Abstract: A display device includes a display panel foldable with respect to a folding axis substantially parallel to a first direction and a support plate disposed under the display panel and including a folding plate foldable with respect to the folding axis. The folding plate includes at least one first support layer and at least one second support layer. The folding plate has a first elastic modulus corresponding to a bending strength with respect to a second direction intersecting the first direction and a second elastic modulus corresponding to a bending strength with respect to the first direction. The first elastic modulus is smaller than the second elastic modulus.
    Type: Application
    Filed: August 4, 2022
    Publication date: March 30, 2023
    Inventors: Jaiku Shin, Sung Chul Choi, Sojeong La, Jin Yong Sim, Gyeongho Jeong
  • Patent number: 11616082
    Abstract: A display apparatus includes an oxide semiconductor pattern disposed on a device substrate and including a channel region disposed between a source region and a drain region, a gate electrode overlapping the channel region of the oxide semiconductor pattern and having a structure in which a first hydrogen barrier layer and a gate conductive layer are stacked, and a gate insulating film disposed between the oxide semiconductor pattern and the gate electrode to expose the source region and the drain region of the oxide semiconductor pattern. The gate electrode exposes a portion of the gate insulating film that is adjacent to the source region and a portion of the gate insulating film that is adjacent to the drain region.
    Type: Grant
    Filed: July 3, 2020
    Date of Patent: March 28, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: So-Young Noh, Ki-Tae Kim, Kyeong-Ju Moon, Hyuk Ji, Jin-Kyu Roh, Jung-Doo Jin, Kye-Chul Choi, Dong-Yup Kim, Chan-Ho Kim
  • Patent number: 11616943
    Abstract: Provided are an image encoding method and device. When carrying out image encoding for a block within a slice, at least one block in a restored block of the slice is set as a reference block. When this is done, the encoding parameters of the reference block are distinguished, and the block to be encoded is encoded adaptively based on the encoding parameters.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: March 28, 2023
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sung Chang Lim, Jong Ho Kim, Hae Chul Choi, Hui Yong Kim, Ha Hyun Lee, Jin Ho Lee, Se Yoon Jeong, Suk Hee Cho, Jin Soo Choi, Jin Woo Hong, Jin Woong Kim
  • Patent number: 11616868
    Abstract: A camera module device includes: a base plate; one or more cameras fixed to and disposed on one surface of the base plate; a plurality of movable cameras movably disposed on the one surface of the base plate and configured to move individually or collectively; a driving gear disposed on the base plate; and a plurality of sub-gears engaged with the driving gear, wherein positions of the plurality of sub-gears are configured to change to selectively transfer power to one or more of the plurality of movable cameras.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: March 28, 2023
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae Woo Jun, Chul Choi
  • Publication number: 20230088384
    Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus according to the present invention may comprise deriving an intra-prediction mode of a current block, and performing intra-prediction for the current block based on the intra-prediction mode. The deriving of the intra-prediction mode may comprise decoding a predetermined mode sameness indicator.
    Type: Application
    Filed: November 17, 2022
    Publication date: March 23, 2023
    Applicants: Electronics and Telecommunications Research Institute, Industry-University Cooperation Foundation Korea Aerospace University, Hanbat National University Industry-Academic Cooperation Foundation
    Inventors: Jin Ho LEE, Sung Chang LIM, Jung Won KANG, Hyun Suk KO, Ha Hyun LEE, Dong San JUN, Seung Hyun CHO, Hui Yong KIM, Jae Gon KIM, Do Hyeon PARK, Jin Soo CHOI, Hae Chul CHOI
  • Publication number: 20230093587
    Abstract: A display device includes a display module that is foldable about first and second folding axes that are spaced apart from each other along a first direction and are extended in a second direction crossing the first direction, and a digitizer module below the display module. The digitizer module includes a plurality of first electrodes that are extended in the first direction and are arranged along the second direction, and a plurality of second electrodes that are extended in the second direction, are arranged along the first direction, and are electrically disconnected from the first electrodes. The plurality of first electrodes include a plurality of first sub-electrodes overlapped with the first folding axis and a plurality of second sub-electrodes overlapped with the second folding axis and located at a different layer from the first sub-electrodes.
    Type: Application
    Filed: November 28, 2022
    Publication date: March 23, 2023
    Inventors: Jaiku SHIN, Dongjin PARK, Dongwoo SEO, Sung Chul CHOI
  • Publication number: 20230087637
    Abstract: A device for conveying a biological material includes a body including an aperture configured to enable connection with an outside of the body and a chamber configured to store a biological material, a plurality of conveyors accommodated in the body and configured to convey the material, and a driver configured to select one of the plurality of conveyors, align the selected conveyor with the aperture, and move the selected conveyor to the outside of the body through the aperture.
    Type: Application
    Filed: November 24, 2022
    Publication date: March 23, 2023
    Inventors: Suk Ho PARK, Hyun Chul CHOI
  • Patent number: 11605484
    Abstract: A multilayer seed pattern inductor includes a magnetic body and an internal coil part. The magnetic body contains a magnetic material. The internal coil part is embedded in the magnetic body and includes connected coil conductors disposed on two opposing surfaces of an insulating substrate. Each of the coil conductors includes a seed pattern formed of at least two layers, a surface coating layer covering the seed pattern, and an upper plating layer formed on an upper surface of the surface coating layer.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: March 14, 2023
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Woon Chul Choi, Myung Jun Park, Hye Min Bang, Jun Ah, Myung Sam Kang, Jung Hyuk Jung
  • Publication number: 20230071578
    Abstract: A display device includes: a display module; a plate attached to the display module; and a digitizer on a lower portion of the plate. The plate is multi-layered, and includes: a layer with an isotropic elasticity coefficient; and a layer with an anisotropic elasticity coefficient.
    Type: Application
    Filed: April 26, 2022
    Publication date: March 9, 2023
    Inventors: Jin Yong SIM, Jai Ku SHIN, Sung Chul CHOI
  • Patent number: 11600208
    Abstract: A display device includes a display module including a first non-folding area, a second non-folding area, and a folding area disposed between the first and second non-folding areas, a first support plate disposed beneath the display module and including openings to overlap the folding area in a plan view, a second support plate disposed beneath the first support plate and including first and second sub-support plates respectively overlapping the first and second non-folding areas in a plan view, and a digitizer module disposed between the first support plate and the second support plate.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: March 7, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sojeong La, Dongjin Park, Jaiku Shin, Sung Chul Choi
  • Publication number: 20230055609
    Abstract: A display device includes: a display module having a first non-foldable area, a foldable area, and a second non-foldable area, which are arranged in a first direction in a unfolded state; and a first support layer disposed under the display module and having a lattice pattern including a plurality of first holes overlapping the foldable area, wherein the first holes are arranged in the first direction and a second direction intersecting the first direction, and wherein: each of the first holes has a first width in the second direction and a second width in the first direction, the first width is in a range from about 2,000 ?m to about 9,000 ?m, and the second width is in a range from about 100 ?m to about 250 ?m.
    Type: Application
    Filed: November 3, 2022
    Publication date: February 23, 2023
    Inventors: DONGWOO SEO, DONGJIN PARK, JAIKU SHIN, SUNG CHUL CHOI
  • Publication number: 20230047942
    Abstract: A heat dissipation apparatus and antenna assembly using the same is disclosed herein. According to an embodiment of the present disclosure, a heat dissipation apparatus configured to cool a circuit board including at least one heat generation element is provided, the heat dissipation apparatus including: a plate disposed to face the circuit board; a plurality of first heat dissipation fins disposed in a first direction on one surface of the plate spaced apart from the circuit board; and a blowing unit disposed to face the one surface of the plate, the blowing unit including at least one fan configured to discharge air toward the one surface of the plate, wherein a space between two adjacent first heat dissipation fins defines a side flow path configured to guide the air discharged from the at least one fan.
    Type: Application
    Filed: October 28, 2022
    Publication date: February 16, 2023
    Applicant: KMW INC.
    Inventors: Duk Yong KIM, Kyu Chul CHOI, In Hwa CHOI, Youn Jun CHO, Jae Hyun PARK, Kyo Sung JI, Hye Yeon KIM, Chi Back RYU, Jeong Hyun CHOI, Jae Ho JANG
  • Publication number: 20230051763
    Abstract: A camera apparatus includes a camera body portion including a prism unit, a lens assembly, and an image sensor unit, a gyro sensor detecting a hand-shake with respect to the camera body portion and outputting gyro sensor information, a driver circuit generating at least one of a prism driving signal for image stabilization of the prism unit and a sensor driving signal for image stabilization of the image sensor unit based on the gyro sensor information, a prism actuator disposed in the camera body portion for driving the prism unit and performing image stabilization on the prism unit in response to the prism driving signal, and a sensor actuator disposed in the camera body portion for driving the image sensor unit and performing image stabilization on the image sensor unit in response to the sensor driving signal.
    Type: Application
    Filed: July 11, 2022
    Publication date: February 16, 2023
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Chul CHOI
  • Patent number: 11578718
    Abstract: An apparatus for reducing noise of a gear pump through uneven pitch-simulated control includes a calculation unit to calculate different control current values for each tooth of a teeth order by applying a teeth number, the teeth order, and a teeth angle of the gear pump in which a plurality of teeth are evenly formed, a storage unit to map and store the teeth order and the different control current values corresponding to the teeth order for each tooth, and a current controller to variably generate the control current value mapped corresponding to the teeth order when each tooth reaches a reference position when the gear pump rotates by a motor, wherein the control current value is added to a reference current value of a motor control signal and applied to the motor.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: February 14, 2023
    Assignees: Hyundai Motor Company, Kia Corporation, Myunghwa Ind. Co., Ltd.
    Inventors: Sung Wook Jang, Dong Kuk Han, MinSu Kim, Chin Chul Choi, Byung Jun Hwang, Hyung Suk Kim
  • Publication number: 20230040680
    Abstract: Disclosed is a battery module with improved manufacturing efficiency and improved cooling efficiency. The battery module includes a plurality of secondary batteries; and a cooling member configured so that the plurality of secondary batteries are mounted thereto, and the cooling member includes an upper frame having a plate shape with a predetermined length so that the plurality of secondary batteries are mounted to a first surface thereof; and a lower frame coupled to a second surface of the upper frame on a side opposite the first surface and having a coolant channel configured so that a coolant flows through the coolant channel.
    Type: Application
    Filed: May 14, 2021
    Publication date: February 9, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Bum CHOI, Jong-Yoon KEUM, Dong-Hwan SHIN, Jong-Chul CHOI
  • Publication number: 20230045544
    Abstract: A display device includes: a display panel including a first area, a bending area, and a second area arranged along a first direction, the second area being located underneath the first area when the bending area is bent; and a spacer between the first area and the second area, and including: a first part; and a second part protruding from the first part in the first direction. Opposite sides of the second part in a second direction that crosses the first direction define steps that are stepped from the first part, and the steps are located at an outside of the second area in a plan view.
    Type: Application
    Filed: April 18, 2022
    Publication date: February 9, 2023
    Inventors: JAIKU SHIN, JINHYOUNG KIM, SUNG CHUL CHOI
  • Publication number: 20230032397
    Abstract: An example operation method of an image forming apparatus includes determining a state of a toner refill operation of injecting toner from a toner reload kit (TRK) into a cartridge in the image forming apparatus, based on completion of injecting toner from the TRK into the cartridge, controlling the TRK to store information indicating a toner refill completion in a memory of the TRK, based on completion of injecting toner from the TRK into the cartridge, updating information of an amount of remaining toner of the cartridge based on an amount of the toner injected into the cartridge from the TRK, and based on the information indicating the toner refill completion being stored in the memory of the TRK, unlocking a locking apparatus in the image forming apparatus so the TRK may be removed from the cartridge.
    Type: Application
    Filed: October 11, 2022
    Publication date: February 2, 2023
    Inventors: Hong-Chul CHOI, Yun-Su KIM, Seong-ho JIN, Jinwoo NOH
  • Patent number: 11570911
    Abstract: A display device includes a display panel and a lower member disposed below the display panel. The display panel includes a first non-folding region, a second non-folding region, and a folding region disposed between the first non-folding region and the second non-folding region. The lower member includes a support layer and a digitizer. The support layer comprises a first support part disposed below the first non-folding region, and having insulating property, and a second support part disposed below the second non-folding region and having insulating property. The digitizer is disposed below the first support part and the second support part.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: January 31, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jaiku Shin, Sung Chul Choi
  • Publication number: 20230018300
    Abstract: A protective window includes a glass substrate which faces a display surface of an image-generating panel and has a thickness of about 20 micrometers to about 80 micrometers; a protective film which faces the display surface of the image-generating panel with the glass substrate therebetween; an adhesive layer which is between the protective film and the glass substrate and combines the protective film with the glass substrate; and a protective layer which covers an edge portion of the glass substrate. A thickness of the protective layer which covers the edge portion of the glass substrate is equal to or less than about ? of a thickness of the adhesive layer which combines the protective film with the glass substrate.
    Type: Application
    Filed: September 22, 2022
    Publication date: January 19, 2023
    Inventors: Jai Ku SHIN, Dong Jin PARK, Dongwoo SEO, Sung Chul CHOI
  • Publication number: 20230021186
    Abstract: The present invention relates to a heat dissipation device for an electronic element, the heat dissipation device including a first chamber in which a printed circuit board having heating elements mounted thereon is disposed, a second chamber configured to exchange heat with heat transferred from the first chamber and configured such that an injection part configured to inject a refrigerant and a refrigerant supply part configured to supply the refrigerant to the injection part are disposed in the second chamber, a heat transfer part disposed between the first chamber and the second chamber and configured to receive heat from the heating elements of the first chamber and supply the heat to the second chamber, and a condensing part configured to condense the refrigerant injected into the second chamber, in which a plurality of evaporation-inducing ribs is provided on a surface of the heat transfer part exposed to the second chamber and allows the liquid refrigerant injected by the injection part to be adsorbed
    Type: Application
    Filed: September 18, 2022
    Publication date: January 19, 2023
    Applicant: KMW INC.
    Inventors: Duk Yong KIM, Jin Soo YEO, Kyu Chul CHOI, In Hwa CHOI, Youn Jun CHO, Jeong Hyun CHOI, Jae Hyun PARK