Patents by Inventor Jai Min Han
Jai Min Han 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: 20230182131Abstract: A pattern electrode structure for an electrowetting apparatus, which is laminated between a base material and a dielectric layer of the electrowetting apparatus, includes a first electrode portion including a first electrode connection portion, a first basal pattern electrode connected to the first electrode connection portion, and a plurality of first upper branch electrodes connected to the first basal pattern electrode, and a second electrode portion including a second electrode connection portion, a second basal pattern electrode connected to the second electrode connection portion, and a plurality of second upper branch electrodes connected to the second basal pattern electrode, the second electrode portion having a different polarity from the first electrode portion, in which the second basal pattern electrode extends and traverses in a width direction of a plane of the pattern electrode structure.Type: ApplicationFiled: May 19, 2022Publication date: June 15, 2023Applicants: Hyundai Motor Company, Kia CorporationInventors: Kwang-Joon HAN, Jai-Min HAN, Byung-Kyu CHO
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Publication number: 20230185079Abstract: A pattern electrode structure, which is stacked between a base material and a dielectric layer of an electro-wetting apparatus, includes a plurality of branch electrodes formed in a direction perpendicular to an arbitrary plane perpendicular to a plane formed by the pattern electrode structure to be spaced from each other at regular intervals, and a plurality of sub-branch electrodes formed to extend from the plurality of branch electrodes by as much as a predetermined length in an inclined direction, whereby, self-cleaning performance may be more efficiently exhibited even for small droplets.Type: ApplicationFiled: May 18, 2022Publication date: June 15, 2023Applicants: Hyundai Motor Company, Kia CorporationInventors: Kwang-Joon Han, Jai-Min Han, Byung-Kyu Cho
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Publication number: 20230176359Abstract: A pattern electrode structure stacked between a base material and a dielectric layer of an electro-wetting device includes a center branch electrode extending in a first direction, and a plurality of sub-branch electrodes extending from the center branch electrode in an inclined direction relative to the first direction. According to the present disclosure, self-cleaning performance can be more efficiently exhibited even for small droplets.Type: ApplicationFiled: May 18, 2022Publication date: June 8, 2023Applicants: Hyundai Motor Company, Kia CorporationInventors: Byung-Kyu CHO, Jai-Min HAN, Kwang-Joon HAN
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Patent number: 11592685Abstract: An apparatus for displaying a floating image is disclosed. The apparatus includes a light source that extends in a planar direction and emits light for realizing the floating image, a collecting lens, which extends parallel to the light source and refracts the light, a reflective plate, which faces the collecting lens and reflects the light that is refracted at the collective lens, and a dihedral reflector array, which extends in a planar direction and includes mirrors extending in directions intersecting each other, where a first surface of the dihedral reflector array facing the reflective plate such that the reflected light is incident on the first surface, and the reflected light is emitted from a second surface of the dihedral reflector array by being reflected by the mirrors, thereby realizing the floating image at a position spaced apart from the second surface.Type: GrantFiled: September 23, 2020Date of Patent: February 28, 2023Assignees: Hyundai Motor Company, Kia Motors Corporation, University-Industry Cooperation Group of Kyung Hee UniversityInventors: Jai Min Han, Sung Wook Min, Sung Won Choi
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Publication number: 20210364818Abstract: An apparatus for displaying a floating image is disclosed. The apparatus includes a light source that extends in a planar direction and emits light for realizing the floating image, a collecting lens, which extends parallel to the light source and refracts the light, a reflective plate, which faces the collecting lens and reflects the light that is refracted at the collective lens, and a dihedral reflector array, which extends in a planar direction and includes mirrors extending in directions intersecting each other, where a first surface of the dihedral reflector array facing the reflective plate such that the reflected light is incident on the first surface, and the reflected light is emitted from a second surface of the dihedral reflector array by being reflected by the mirrors, thereby realizing the floating image at a position spaced apart from the second surface.Type: ApplicationFiled: September 23, 2020Publication date: November 25, 2021Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, University-Industry Cooperation Group of Kyung Hee UniversityInventors: Jai Min HAN, Sung Wook MIN, Sung Won CHOI
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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: 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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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: 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
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Publication number: 20190085909Abstract: 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: ApplicationFiled: November 15, 2018Publication date: March 21, 2019Applicants: 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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Publication number: 20190072145Abstract: 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: December 11, 2017Publication date: March 7, 2019Inventors: Min Gyun Chung, Jai Min Han, Yoon Joo Rhee, Byung Chan Lee, Jae Young Lee, Yoon Cheol Kim
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Patent number: 10161461Abstract: 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 30, 2016Date of Patent: December 25, 2018Assignees: Hyundai Motor Company, JINMYUNG FRICTECH CO., LTD.Inventors: 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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Publication number: 20180340585Abstract: 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: November 16, 2017Publication date: November 29, 2018Applicants: 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: 10138963Abstract: Disclosed is a solid-type brake disc including a hat part, which includes a circular main body mounted on a rotation shaft of a wheel, and a plurality of protrusions protruding in a circumferential direction from an outside surface of the main body, and a friction part, which includes a ring body having a through-hole formed in the center thereof for receiving the hat part in the through-hole, and recessed portions protruding from the periphery of the through-hole toward the respective protrusions, the recessed portions being connected to the respective protrusions to enclose the protrusions.Type: GrantFiled: December 8, 2016Date of Patent: November 27, 2018Assignees: Hyundai Motor Company, 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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Publication number: 20180156288Abstract: 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: ApplicationFiled: June 5, 2017Publication date: June 7, 2018Applicants: 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
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Publication number: 20180142745Abstract: 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: ApplicationFiled: October 27, 2017Publication date: May 24, 2018Inventors: 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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Publication number: 20180080514Abstract: Disclosed is a solid-type brake disc including a hat part, which includes a circular main body mounted on a rotation shaft of a wheel, and a plurality of protrusions protruding in a circumferential direction from an outside surface of the main body, and a friction part, which includes a ring body having a through-hole formed in the center thereof for receiving the hat part in the through-hole, and recessed portions protruding from the periphery of the through-hole toward the respective protrusions, the recessed portions being connected to the respective protrusions to enclose the protrusions.Type: ApplicationFiled: December 8, 2016Publication date: March 22, 2018Applicants: Hyundai Motor Company, 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