Patents by Inventor Byung Chan Lee
Byung Chan Lee 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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Publication number: 20240154073Abstract: According to embodiments, a light-emitting display device includes a light-emitting diode that emits blue light and green light, a color conversion layer on the light-emitting diode, and a scattering absorption layer disposed between the color conversion layer and the light-emitting diode and that transmits blue light and green light.Type: ApplicationFiled: September 12, 2023Publication date: May 9, 2024Applicant: Samsung Display Co., LTD.Inventors: Gak Seok LEE, Byung-Chul KIM, Jang Wi RYU, Jae Min SEONG, Keun Chan OH, Sang Hun LEE, HALIM JI
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Publication number: 20240154066Abstract: Embodiments provide an emissive display device including a light emitting diode that includes a first circuit part disposed in a display area and a cathode electrically connected to the first circuit part; and a non-emissive element that includes a second circuit part disposed in the display area and a cathode electrically connected to the second circuit part, and the cathode of the non-emissive element is separated from the cathode of the light emitting diode by a separator.Type: ApplicationFiled: October 24, 2023Publication date: May 9, 2024Applicant: Samsung Display Co., LTD.Inventors: Chung Sock CHOI, Byung Han YOO, Yoo Min KO, Ju Chan PARK, Dae-Young LEE
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Publication number: 20240145167Abstract: A multilayer capacitor includes a body including dielectric layers and internal electrodes and external electrodes disposed on an external surface of the body and connected to the internal electrodes. The body includes a first surface and a second surface to which the internal electrodes are exposed, the first surface and the second surface opposing each other in a first direction, a third surface and a fourth surface opposing each other in a second direction which is a direction in which the dielectric layers are stacked, and a fifth surface and a sixth surface opposing each other in a third direction. At least one of the internal electrodes include a first bottleneck structure having a first directional length of a third-directional outer region smaller than an inner region thereof and a second bottleneck structure having a third directional length of a first directional outer region smaller than an inner region thereof.Type: ApplicationFiled: January 10, 2024Publication date: May 2, 2024Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jong Ho Lee, Myung Chan Son, Sim Chung Kang, Eun Jin Shim, Sun Hwa Kim, Byung Soo Kim
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Publication number: 20240134478Abstract: A method of driving an electronic device includes displaying a plurality of fingerprint recognition icons on a display device configured to perform fingerprint recognition, and releasing a lock state of the display device through a fingerprint authentication process upon determining at least one first fingerprint recognition icon among the plurality of fingerprint recognition icons is touched. The plurality of fingerprint recognition icons include at least one first fingerprint recognition icon configured to support the fingerprint recognition and at least one second fingerprint recognition icon configured to not support the fingerprint recognition.Type: ApplicationFiled: September 7, 2023Publication date: April 25, 2024Inventors: Byung Han YOO, Jung Woo PARK, Hyang A PARK, Dae Young LEE, Hyun Dae LEE, Kang Bin JO, Sang Hwan CHO, Sung-Chan JO
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Patent number: 11967862Abstract: In a driving system, first and second inverters are connected to a driving motor, one end of a stator winding through which 3-phase current flows is connected to an output line of the first inverter, and the other end of the stator winding is connected to an output line of the second inverter. A winding pattern of the driving motor includes: coils wound in slots defined in the stator and to which 3-phase current is applied; coils wound on innermost and outermost sides based on a direction toward a rotating shaft of the driving motor in the slots, and being energized by different AC phases; and coils disposed between a first coil located on the outermost side and a second coil located on the innermost side, and being energized by the same AC phases as those of the first and second coils.Type: GrantFiled: November 16, 2021Date of Patent: April 23, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Woong Chan Chae, Jung Shik Kim, Jong Hoon Lee, Byung Kwan Son, Sang Hoon Moon, Young Jin Shin
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Patent number: 11943987Abstract: A color conversion substrate and a display device are provided. The color conversion substrate includes a base substrate, a first color filter and a second color filter disposed on a surface of the base substrate, a first partition layer disposed between the first color filter and the second color filter, a second partition layer disposed on the first partition layer, a first wavelength conversion pattern disposed on the first color filter and a second wavelength conversion pattern disposed on the second color filter, wherein the first partition layer includes a first lower surface disposed on the first color filter and a second lower surface disposed on the second color filter.Type: GrantFiled: June 11, 2020Date of Patent: March 26, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Gak Seok Lee, Byung Chul Kim, In Ok Kim, Jae Min Seong, In Seok Song, Keun Chan Oh, Ji Eun Jang, Chang Soon Jang, Sun Kyu Joo, Ha Lim Ji
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Patent number: 11924399Abstract: A stereoscopic display device including a barrier panel is provided. When a viewing distance of a viewer is out of the proper range, the stereoscopic display device may shift the blocking regions and the transmitting regions of the barrier panel. The stereoscopic display device may maintain the ratio of channels located within a barrier blocking region and a barrier transmitting region of the barrier panel by using the channels disposed within trigger regions of the barrier panel. Thus, the stereoscopic display device may provide a stereoscopic image of good quality to the viewer located at a region being out of the proper range.Type: GrantFiled: April 3, 2020Date of Patent: March 5, 2024Assignee: LG Display Co., Ltd.Inventors: You-Yong Jin, Hoon Kang, Byung-Joo Lee, Bu-Yeol Lee, Wook Jeon, Hee-Jin Im, Yong-Ku Lee, Ju-Hoon Jang, Dong-Yeon Kim, Woon-Chan Moon
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Patent number: 11118643Abstract: A brake disc, in which a hat part that is mounted on a hub and a disc part that provides friction surfaces with brake pads are made of different materials and are combined, includes: a plurality of bridges protruding and circumferentially arranged around an edge of the hat part for coupling to the disc part; a plurality of vanes defining a channel for air flow; and a plurality of coupling pillars, which are fixedly in contact with the bridges, respectively, arranged between a pair of disc plates. The coupling pillars are fixedly in contact with both sides of the bridges while exposing front ends of the bridges.Type: GrantFiled: November 6, 2019Date of Patent: September 14, 2021Assignees: Hyundai Motor Company, Kia Motors Corporation, Seohan Industry Co Ltd, Hyundai Sungwoo Casting Co LtdInventors: Yoon Joo Rhee, Jae Young Lee, Yoon Cheol Kim, Byung Chan Lee, Jin Han, Min Gyun Chung, Jeong Ho Shin, Jae Seok Lee
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Publication number: 20210190158Abstract: Disclosed are a brake disk and a method for manufacturing the same. In particular, the brake disk may include a friction surface formed of cast iron, and the friction surface of the brake disk is divided into a plurality of sections in a circumferential direction. Preferably, an average of the numbers per unit area of eutectic cells formed on surfaces of the sections may not be greater than 300 ea/cm2.Type: ApplicationFiled: February 24, 2021Publication date: June 24, 2021Inventors: Min Gyun Chung, Jai Min Han, Yoon Joo Rhee, Byung Chan Lee, Jae Young Lee, Yoon Cheol Kim
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Publication number: 20200191214Abstract: A brake disc, in which a hat part that is mounted on a hub and a disc part that provides friction surfaces with brake pads are made of different materials and are combined, includes: a plurality of bridges protruding and circumferentially arranged around an edge of the hat part for coupling to the disc part; a plurality of vanes defining a channel for air flow; and a plurality of coupling pillars, which are fixedly in contact with the bridges, respectively, arranged between a pair of disc plates. The coupling pillars are fixedly in contact with both sides of the bridges while exposing front ends of the bridges.Type: ApplicationFiled: November 6, 2019Publication date: June 18, 2020Inventors: Yoon Joo Rhee, Jae Young Lee, Yoon Cheol Kim, Byung Chan Lee, Jin Han, Min Gyun Chung, Jeong Ho Shin, Jae Seok Lee
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Publication number: 20200173507Abstract: A method of manufacturing a brake disc of heterogeneous materials, may include a disc device and a hub device formed in a cast-bonding manner using different materials, includes performing a first casting for casting the disc device using a grey cast-iron material, performing a preparation step by placing the disc device in a casting mold as an insert, performing a second casting for preparing a brake disc cast product by injecting molten aluminum alloy into the casting mold and casting the hub device to be cast-bonded to the disc device, and performing an oxynitriding process for forming an oxynitride layer by smoothing a surface of the brake disc cast product and performing heat treatment in a gaseous atmosphere at a temperature ranging from 425 to 500° C.Type: ApplicationFiled: February 6, 2020Publication date: June 4, 2020Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Yoon Cheol Kim, Jai Min Han, Yoon Joo Rhee, Min Gyun Chung, Byung Chan Lee, Jae Young Lee
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Patent number: 10655687Abstract: This invention relates to a paper friction material and a method of manufacturing the same, wherein the paper friction material is configured such that dispersibility and bondability are increased between a filler and a matrix. The paper friction material which is suitable for use in a vehicle, includes a friction base including pulp and a coating layer formed on the friction base using a mixture of latex and a functional material. The OH reactive group of the pulp and the aromatic ring of the latex are hydrogen-bonded so that the friction base and the coating layer are coupled with each other.Type: GrantFiled: November 15, 2018Date of Patent: May 19, 2020Assignees: Hyundai Motor Company, Jinmyung Frictech Co., Ltd., Kia Motors CorporationInventors: Yoon Cheol Kim, Jai Min Han, Min Gyun Chung, Jae Young Lee, Byung Chan Lee, Yoon Joo Rhee, Sung Jin Hong, Eun Pa Cho, Chi Deuk Ahn
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Patent number: 10612612Abstract: A solid type brake disc includes a hat part that includes a circular body that is fitted on a rotary shaft of a wheel and a plurality of hollow protrusions that are formed around the outer surface of the body and each have an internal space. The solid type brake disc also includes a friction part that includes a ring body that has a center hole and receives the hat part in the center hole and projections that protrude toward the hollow protrusions and are inserted in the internal spaces to be covered with the hollow protrusions.Type: GrantFiled: October 27, 2017Date of Patent: April 7, 2020Assignees: Hyundai Motor Company, Kia Motors Corporation, Hyundai Sungwoo Casting Co., Ltd.Inventors: Min Gyun Chung, Jai Min Han, Yoon Cheol Kim, Byung Chan Lee, Yoon Joo Rhee, Jae Young Lee, In Seop Kim, Jeong Ho Shin
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Patent number: 10598237Abstract: A method of manufacturing a brake disc of heterogeneous materials, may include a disc device and a hub device formed in a cast-bonding manner using different materials, includes performing a first casting for casting the disc device using a grey cast-iron material, performing a preparation step by placing the disc device in a casting mold as an insert, performing a second casting for preparing a brake disc cast product by injecting molten aluminum alloy into the casting mold and casting the hub device to be cast-bonded to the disc device, and performing an oxynitriding process for forming an oxynitride layer by smoothing a surface of the brake disc cast product and performing heat treatment in a gaseous atmosphere at a temperature ranging from 425 to 500° C.Type: GrantFiled: November 16, 2017Date of Patent: March 24, 2020Inventors: Yoon Cheol Kim, Jai Min Han, Yoon Joo Rhee, Min Gyun Chung, Byung Chan Lee, Jae Young Lee
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Publication number: 20200065508Abstract: An image sharing server includes a communicator and an image sharing device configured to communicate with a user terminal through the communicator. The image sharing device is configured to generate a shared database by receiving mapping information mapping between pieces of first identification data corresponding to a plurality of characters and first client user identifications (IDs) from the user terminal accessing through a main user ID, to acquire pieces of second identification data corresponding to characters of a first image provided from the user terminal, to select a client user ID being mapped to all of the pieces of second identification data among the first client user IDs with reference to the mapping information, and to permit the selected client user ID to access the first image.Type: ApplicationFiled: July 16, 2019Publication date: February 27, 2020Inventor: Byung Chan Lee
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Patent number: 10436268Abstract: A method of manufacturing a brake disk made of gray cast iron is disclosed. The method includes casting a disk body using gray cast iron containing 3.1 wt % to 3.7 wt % of C; machining a surface of the cast disk body; nitriding the disk body by exposing the machined surface to a temperature in the range of 540° C. to 580° C. for 50 min to 70 min, and coating the nitrided disk body.Type: GrantFiled: March 13, 2019Date of Patent: October 8, 2019Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Min Gyun Chung, Yoon Cheol Kim, Yoon Joo Rhee, Byung Chan Lee, Jae Young Lee
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Publication number: 20190211894Abstract: A method of manufacturing a brake disk made of gray cast iron is disclosed. The method includes casting a disk body using gray cast iron containing 3.1 wt % to 3.7 wt % of C; machining a surface of the cast disk body; nitriding the disk body by exposing the machined surface to a temperature in the range of 540° C. to 580° C. for 50 min to 70 min, and coating the nitrided disk body.Type: ApplicationFiled: March 13, 2019Publication date: July 11, 2019Inventors: Min Gyun CHUNG, Yoon Cheol KIM, Yoon Joo RHEE, Byung Chan LEE, Jae Young LEE
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Patent number: 10344817Abstract: A vehicle brake pad includes a back plate layer, an underlayer, an adhesive layer that mediates between the back plate layer and the underlayer, and a friction material layer, wherein the vehicle brake pad does not include a shim and wherein at least one of the back plate layer, the adhesive layer, and the underlayer has a loss factor of 0.2 or higher, calculated according to the following Equation 1, at temperatures from ?100 to 300° to damp noise of a frequency range of 200 to 20,000 Hz at temperatures from ?100 to 300°: (Equation 1) Loss factor ?=(f2?f1)/f0, where ? is a loss factor, f0 is a noise frequency, f1 is a minimum value of amplitude of a noise frequency when a noise level is reduced by 3 dB, and f2 a maximum value of amplitude when the noise level is reduced by 3 dB.Type: GrantFiled: November 3, 2016Date of Patent: July 9, 2019Assignee: Hyundai Motor CompanyInventors: Jae Young Lee, Yoon Joo Rhee, Byung Chan Lee, Jai Min Han, Yoon Cheol Kim
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Patent number: 10274031Abstract: A method of manufacturing a brake disk made of gray cast iron is disclosed. The method includes casting a disk body using gray cast iron containing 3.1 wt % to 3.7 wt % of C; machining a surface of the cast disk body; nitriding the disk body by exposing the machined surface to a temperature in the range of 540° C. to 580° C. for 50 min to 70 min, and coating the nitrided disk body.Type: GrantFiled: April 26, 2018Date of Patent: April 30, 2019Assignees: HYUNDAI MOTOR COMPANY, KIA Motors CorporationInventors: Min Gyun Chung, Yoon Cheol Kim, Yoon Joo Rhee, Byung Chan Lee, Jae Young Lee
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Patent number: 10260581Abstract: Disclosed is a brake disc for vehicles including a ring-shaped disc part provided with an insertion space formed at the central region thereof, a hub part disposed within the insertion space and provided with recesses formed on the external circumferential surface thereof, and connection parts configured to connect the disc part and the hub part, wherein each of the connection parts is divided into a curved section extending from the internal circumferential surface of the disc part and having both curved side surfaces and a rectilinear section extending from the curved section, having both flat side surfaces and inserted into each of the recess, and widths of the curved section and the rectilinear section are decreased in a direction toward the hub part.Type: GrantFiled: June 5, 2017Date of Patent: April 16, 2019Assignees: Hyundai Motor Company, Kia Motors Corporation, SEOHAN INDUSTRY CO., LTD.Inventors: Yoon Cheol Kim, Seong Jin Kim, Jai Min Han, Joo Beom Kim, Soo Hyuk Lee, Jae Young Lee, Byung Soo Yoo, Tae Ho Jung, Min Gyun Chung, Byung Chan Lee, Yoon Joo Rhee, Sang Do Kwak, Gwang Yun Kim, Taeg Jo Kim, Cheol Ki Kim, O Sung Kwon, Kyoung Don Yi, Jae Seok Lee