Patents by Inventor In-Chul Hwang
In-Chul 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).
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Patent number: 11914145Abstract: Disclosed in the present invention is a floating hologram system. The floating hologram system includes a diffuser configured to form a projection image using light beams transmitted from an image transmitter and diffuse the formed image, and a holographic optical element on which the image diffused from the diffuser is incident and which generates a virtual image floating at a position a predetermined distance therefrom and has a convex lens characteristic. A distance between the diffuser and the holographic optical element is determined based on a focal length of the holographic optical element and a distance from the holographic optical element to the virtual image.Type: GrantFiled: December 10, 2020Date of Patent: February 27, 2024Assignee: KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATIONInventors: Seung Hyun Lee, Lee Hwan Hwang, Jae Hyun Lee, Sung Jae Ha, Soon Chul Kwon, Kwang Pyo Hong
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Publication number: 20240030611Abstract: Disclosed is a patch antenna in which coupling gaps are formed between a lower patch and feed pins so as to maximize the performance of the antenna. The disclosed patch antenna comprises: a base layer; an upper patch disposed on the upper surface of the base layer; a lower patch disposed on the lower surface of the base layer; and feed pins passing through the base layer, upper patch, and lower patch, wherein the feed pins are spaced from the upper patch and thereby form coupling gaps.Type: ApplicationFiled: June 23, 2023Publication date: January 25, 2024Applicant: AMOTECH CO., LTD.Inventor: Chul HWANG
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Patent number: 11870068Abstract: Provided is a secondary battery, specifically, a secondary battery having excellent stability and improved output characteristic and low temperature characteristic by including a cathode active material in which at least one of metals forming the cathode active material has a concentration gradient in at least a portion of a region between a central portion and a surface portion; and a conductive material mixture in which carbon nanotube is mixed with carbon black at an appropriate ratio, the carbon black being a spherical nanoparticle.Type: GrantFiled: October 19, 2020Date of Patent: January 9, 2024Assignee: SK ON CO., LTD.Inventors: Jin-Sub Lim, Kook-Hyun Han, Duck-Chul Hwang
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Patent number: 11871188Abstract: An electronic device comprising: a microphone array including at least three microphones; and at least one processor configured to: identify a kind of an application that is executed; activate one or more of the microphones in the array based on each microphone's respective position within the electronic device and the type of the application; and capture audio using the activated microphones.Type: GrantFiled: April 9, 2021Date of Patent: January 9, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Jong Mo Keum, Min Ho Bae, Jung Yeol An, Gang Youl Kim, Jun Tai Kim, Jae Mo Yang, Nam Il Lee, Ho Chul Hwang
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Patent number: 11853108Abstract: The disclosure relates to an artificial intelligence (AI) system using a machine learning algorithm such as deep learning and the like, and an application thereof. In particular, there is provided a control method for an electronic apparatus for searching for an image, the method comprising displaying an image comprising at least one object, detecting a user input for selecting an object, recognizing an object displayed at a point at which the user input is detected and acquiring information regarding the recognized object by using a recognition model trained to acquire information regarding an object, displaying a list including the information regarding the object, and based on one piece of information being selected from the information regarding the object included in the list, providing a related image by searching for the related image based on the selected information.Type: GrantFiled: October 24, 2018Date of Patent: December 26, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyeon Mok Ko, Hyung Rai Oh, Hong Chul Kim, Silas Jeon, In-Chul Hwang
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Patent number: 11848442Abstract: A lithium secondary battery includes a cathode formed of a cathode active material including a lithium metal oxide particle having a concentration gradient, and a coating formed on the lithium metal oxide particle, the coating including aluminum, titanium and zirconium, an anode, and a separator interposed between the cathode and the anode. The cathode active material includes 2,000 ppm to 4,000 ppm of aluminum, 4,000 ppm to 9,000 ppm of titanium and 400 ppm to 700 ppm of zirconium, based on the total weight of the cathode active material. The performance of the secondary battery may be maintained under a high temperature condition.Type: GrantFiled: December 8, 2022Date of Patent: December 19, 2023Assignee: SK ON CO., LTD.Inventors: Kyung Bin Yoo, Duck Chul Hwang
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Publication number: 20230402014Abstract: A display device includes: a display panel; a scan driver to provide scan signals to scan lines; an emission driver to provide emission control signals to emission control lines; and a readout circuit to receive a sensing signal from a readout line. The display panel includes: a first pixel in a first row, and connected to a first sub-scan line from among the scan lines, and a first emission control line; a first photo sensor in the first row, and connected to the first sub-scan line, a reset control line, and the readout line; a second pixel in a second row, and connected to a second sub-scan line from among the scan lines, and a second emission control line; and a second photo sensor in the second row, and connected to the second sub-scan line, a third emission control line, and the readout line.Type: ApplicationFiled: March 28, 2023Publication date: December 14, 2023Inventors: Il Nam KIM, Hyun Dae LEE, Kang Bin JO, Go Eun CHA, Hee Chul HWANG
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Publication number: 20230397472Abstract: Provided is a display device including a substrate including a fingerprint area. The fingerprint area includes a first area and a second area. A light-emitting element layer is disposed on the substrate. The light-emitting element layer includes light-emitting elements. A sensor layer is disposed on the substrate, the sensor layer including photosensors. The light-emitting elements include a first light-emitting element arranged in the first area and a second light-emitting element arranged in the second area. During a fingerprint sensing period, the first light-emitting element emits light and the second light-emitting element does not emit light.Type: ApplicationFiled: August 16, 2023Publication date: December 7, 2023Inventors: YUN HO KIM, Keum Dong Jung, Jin Oh Kwag, Won Sang Park, Deok Hwa Woo, Bong Hyun You, Chul Kim, Seung Hyun Moon, Jun Hee Moon, Hee Chul Hwang
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Publication number: 20230378174Abstract: A semiconductor device includes a first active pattern extending lengthwise along a first direction and a second active pattern extending lengthwise along the first direction and spaced apart from the first active pattern in the first direction. The device also includes a field insulating film between the first active pattern and the second active pattern. An upper surface of the field insulating film is lower than or coplanar with upper surfaces of the first and second active patterns. The device further includes an element isolation structure in an isolation trench in the first active pattern and the field insulating film. An upper surface of the element isolation structure is higher than the upper surfaces of the first and second active patterns.Type: ApplicationFiled: August 3, 2023Publication date: November 23, 2023Inventors: Sang Min YOO, Ju Youn KIM, Hyung Joo NA, Bong Seok SUH, Joo Ho JUNG, Eui Chul HWANG, Sung Moon LEE
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Patent number: 11818526Abstract: An electronic device according to various embodiments of the present invention may comprise: a housing comprising a first surface facing in a first direction and a second surface facing in a second direction that is opposite to the first direction, the first surface comprising an at least partially transparent part and at least one opening formed adjacent to the at least partially transparent part; a camera positioned inside the housing, the camera comprising an image sensor facing in the first direction through the at least partially transparent part of the housing; and an acoustic component arranged between the first surface and the second surface, the acoustic component comprising a vibration plate configured to generate a sound such that the same moves in at least one direction selected from the first and second directions, a first passage formed in a third direction that is substantially perpendicular to the first direction such that the generated sound passes through the same, and a second passage formeType: GrantFiled: April 9, 2021Date of Patent: November 14, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Young-Bae Park, Byoung-Hee Lee, Jae-Hee You, Tae-Eon Kim, Han-Bom Park, Sun-Young Lee, Byoung-Uk Yoon, Kyung-Hee Lee, Ho-Chul Hwang
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Publication number: 20230355404Abstract: Proposed is an interbody fusion device including a circular opening into which a fixator can be inserted, an elastic band configured to surround at least a portion of the circular opening, and comprising a first distal end including a fixing part protruding from the circular opening to prevent separation of the fixator, and a connection part connected to a second distal end of the elastic band, the elastic band is implemented with the same material as the interbody fusion device, and the elastic band and the interbody fusion device are integral.Type: ApplicationFiled: April 25, 2023Publication date: November 9, 2023Applicant: Innosys Co., Ltd.Inventors: Suk-Woo Lee, Sung-Chul Hwang, Jun-Taek Lim
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Publication number: 20230360427Abstract: A display device including: scan lines including first and second scan lines; pixels connected to the scan lines; photo sensors connected to some of the scan lines, the photo sensors including a first photo sensor connected to the first scan line and a readout line, and a second photo sensor connected to the second scan line and the readout line; a scan driver to provide scan signals to the scan lines; and a readout circuit to receive, through the readout line, detection signals which are outputted from the photo sensors in response to the scan signals, wherein, while the scan signals are provided to the first and second scan lines, the readout circuit samples a detection signal of one of the first photo sensor and the second photo sensor without sampling a detection signal of the other one of the first photo sensor and the second photo sensor.Type: ApplicationFiled: April 18, 2023Publication date: November 9, 2023Inventors: Il Nam KIM, Seung Hyun MOON, Dong Wook YANG, Hyun Dae LEE, Kang Bin JO, Go Eun CHA, Hee Chul HWANG
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Publication number: 20230317931Abstract: A cathode active material for a lithium secondary battery includes a lithium metal oxide particle and a thio-based compound formed on at least portion of a surface of the lithium metal oxide particle. The thio-based compound has a double bond that contains a sulfur atom. Chemical stability of the lithium metal oxide particle may be improved and surface residues may be reduced by the thio-based compound.Type: ApplicationFiled: April 20, 2023Publication date: October 5, 2023Inventors: Jik Soo KIM, Sang Bok KIM, Hyo Shin KWAK, Myoung Lae KIM, Se Rah MOON, Jin Seok SEO, Mi Jung NOH, Duck Chul HWANG
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Publication number: 20230320168Abstract: A display device includes a substrate having an active region and a first non-active region positioned around the active region. A plurality of pixels is disposed in the active region and emits light. A light source unit is disposed in the first non-active region and emits light. A plurality of optical sensors is disposed in the active region and senses incident light emitted by the light source unit. An encapsulation layer is disposed on the plurality of pixels, the plurality of optical sensors, and the light source unit. A scattering pattern layer is disposed on the encapsulation layer in the first non-active region and includes a plurality of holes.Type: ApplicationFiled: January 6, 2023Publication date: October 5, 2023Inventors: Il Nam KIM, Seung Hyun MOON, Dong Wook YANG, Hyun Dae LEE, Kang Bin JO, Go Eun CHA, Hee Chul HWANG
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Publication number: 20230307838Abstract: Proposed is an RFID antenna module in which feed pins of a patch antenna are connected to a first coupler and a second coupler so that the patch antenna operates as a left hand circular polarization antenna and a right hand circular polarization antenna. The proposed RFID antenna module comprises first to fourth feed pins penetrating through a laminate in which a dielectric, an upper patch, and a lower patch are laminated, and the first to fourth feed pins are spaced apart from each other.Type: ApplicationFiled: June 23, 2021Publication date: September 28, 2023Applicant: AMOTECH CO., LTD.Inventor: Chul HWANG
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Publication number: 20230299487Abstract: Disclosed is a lightweight patch antenna having grooves formed in a dielectric, an upper patch, and a lower patch so as to maintain antenna performance while being lightweight. The disclosed lightweight patch antenna comprises: a dielectric; an upper patch layered on the dielectric; a lower patch layered under the dielectric; and a plurality of lightweight grooves formed by removing a portion of a stack from the outside of the stack in which the dielectric, the upper patch, and the lower patch are stacked.Type: ApplicationFiled: June 21, 2021Publication date: September 21, 2023Applicant: AMOTECH CO., LTD.Inventor: Chul HWANG
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Patent number: 11758793Abstract: Provided is a display device including a substrate including a fingerprint area. The fingerprint area includes a first area and a second area. A light-emitting element layer is disposed on the substrate. The light-emitting element layer includes light-emitting elements. A sensor layer is disposed on the substrate, the sensor layer including photosensors. The light-emitting elements include a first light-emitting element arranged in the first area and a second light-emitting element arranged in the second area. During a fingerprint sensing period, the first light-emitting element emits light and the second light-emitting element does not emit light.Type: GrantFiled: August 13, 2020Date of Patent: September 12, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Yun Ho Kim, Keum Dong Jung, Jin Oh Kwag, Won Sang Park, Deok Hwa Woo, Bong Hyun You, Chul Kim, Seung Hyun Moon, Jun Hee Moon, Hee Chul Hwang
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Publication number: 20230268566Abstract: A positive electrode active material has a pressure of gas produced by a reaction with an electrolyte solution of 0.4 to 0.6 atm/mAh. The positive electrode active material according to the present disclosure allows prediction of an amount of gas produced and gas components in a secondary battery cell without actually manufacturing a secondary battery cell. In addition, a process from sample preparation to measurement completion, which is required for measuring an amount of gas produced, may be performed within a short time.Type: ApplicationFiled: January 6, 2023Publication date: August 24, 2023Inventors: Kyung Bin YOO, Duck Chul HWANG
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Patent number: 11735727Abstract: Provided is a lithium secondary battery including a cathode containing a cathode active material in which a central part has a different concentration from a surface part, and a conductive material having a specific composition ratio, and specifically, a lithium secondary battery including a cathode containing a cathode active material in which a central part of one or more kinds of metals configuring the cathode active material has a different concentration from a surface part thereof, and two or more kinds of conductive materials mixed at a specific ratio, thereby having excellent stability and high low-temperature characteristic and high output characteristic as compared to a conventional lithium secondary battery.Type: GrantFiled: February 2, 2022Date of Patent: August 22, 2023Assignee: SK ON CO., LTD.Inventors: Kook Hyun Han, Kyung Bin Yoo, Duck Chul Hwang
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Patent number: 11727848Abstract: A display device includes a display panel including a plurality of pixels, and a panel driver configured to receive input data, and to drive the display panel based on the input data. The panel driver includes a partial still image detector configured to detect a still image data portion in the input data by determining whether at least a portion of the input data represents a still image, and a command decoder configured to extract command data from the input data by decoding the still image data portion in which the command data are encoded.Type: GrantFiled: July 23, 2020Date of Patent: August 15, 2023Assignee: Samsung Display Co., Ltd.Inventors: Hae-Kwan Seo, Dong-Wook Choi, Se Ja Chul Hwang