Patents by Inventor Hyeongdo Kim
Hyeongdo Kim 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: 20240194273Abstract: A nonvolatile memory device comprising a charge pump circuit with pump units connected in series that receives an external voltage for charge pumping and outputs a pump voltage in stages according to stage control signals, a switching circuit that controls the charge pump circuit to output pumping voltages in response to switch control signals, a stage controller that outputs the stage control signals and the switch control signals based on a temperature code, and a digital temperature sensor that generates the temperature code.Type: ApplicationFiled: August 29, 2023Publication date: June 13, 2024Inventors: Chiweon Yoon, Chihyun Kim, Philkyu Kang, Junehong Park, Jayang Yoon, Hyeongdo Choi
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Patent number: 11079088Abstract: A lamp for a vehicle includes a light source part including a light source, a first lens part including a plurality of micro incidence lenses on which light generated from the light source part is incident, a second lens part including a plurality of micro emitting lenses each corresponding to each of the plurality of micro incidence lenses, and a shield part disposed between the first lens part and the second lens part. The shield part includes a plurality of shields configured to block some of the light incident from the plurality of micro incidence lenses on the plurality of micro emitting lenses. In particular, a light axis of the light source may be disposed to be spaced apart from a center line which connects centers of an incidence surface and an emitting surface of the first lens part in at least one of a side direction or a downward direction.Type: GrantFiled: March 18, 2020Date of Patent: August 3, 2021Assignee: SL CorporationInventors: Jongwoon Kim, Nakjung Choi, Hyeongdo Kim, Kihae Shin
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Publication number: 20200217475Abstract: A lamp for a vehicle includes a light source part including a light source, a first lens part including a plurality of micro incidence lenses on which light generated from the light source part is incident, a second lens part including a plurality of micro emitting lenses each corresponding to each of the plurality of micro incidence lenses, and a shield part disposed between the first lens part and the second lens part. The shield part includes a plurality of shields configured to block some of the light incident from the plurality of micro incidence lenses on the plurality of micro emitting lenses. In particular, a light axis of the light source may be disposed to be spaced apart from a center line which connects centers of an incidence surface and an emitting surface of the first lens part in at least one of a side direction or a downward direction.Type: ApplicationFiled: March 18, 2020Publication date: July 9, 2020Inventors: Jongwoon KIM, Nakjung Choi, Hyeongdo Kim, Kihae Shin
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Patent number: 10634307Abstract: The lamp for a vehicle includes a light source part including a light source, a first lens part including a plurality of micro incidence lenses on which light generated from the light source part is incident, a second lens part including a plurality of micro emitting lenses each corresponding to the micro incidence lenses, and a shield part disposed between the first lens part and the second lens part. The shield part includes a plurality of shields configured to block some of the light incident from the micro incidence lenses on the micro emitting lenses. In particular, a center line of the second lens part is disposed to be spaced apart from a center line of the first lens part in at least one of a side direction or a downward direction.Type: GrantFiled: September 6, 2018Date of Patent: April 28, 2020Assignee: SL CorporationInventors: Jongwoon Kim, Nakjung Choi, Hyeongdo Kim, Kihae Shin
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Publication number: 20200080704Abstract: The lamp for a vehicle includes a light source part including a light source, a first lens part including a plurality of micro incidence lenses on which light generated from the light source part is incident, a second lens part including a plurality of micro emitting lenses each corresponding to the micro incidence lenses, and a shield part disposed between the first lens part and the second lens part. The shield part includes a plurality of shields configured to block some of the light incident from the micro incidence lenses on the micro emitting lenses. In particular, a center line of the second lens part is disposed to be spaced apart from a center line of the first lens part in at least one of a side direction or a downward direction.Type: ApplicationFiled: September 6, 2018Publication date: March 12, 2020Inventors: Jongwoon Kim, Nakjung Choi, Hyeongdo Kim, Kihae Shin
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Patent number: 10533724Abstract: Provided is a lamp for a vehicle capable of ensuring light efficiency to satisfy the performance requirements for light distribution. The lamp includes a light source portion, a first lens portion with a plurality of micro incident lenses onto which light generated by the light source portion is incident, a second lens portion with a plurality of micro exit lenses corresponding to the plurality of micro incident lenses, respectively, and a shielding portion with a plurality of shields that are disposed on rear focal points of the plurality of micro exit lenses to obstruct a portion of incident light. In particular, a focal distance of a micro exit lens among the plurality of micro exit lenses is shorter than a focal distance of a micro incident lens among the plurality of micro incident lenses, which corresponds to the micro exit lens.Type: GrantFiled: July 17, 2018Date of Patent: January 14, 2020Assignee: SL CorporationInventors: Jongwoon Kim, Nakjung Choi, Hyeongdo Kim, Kihae Shin
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Patent number: 10274153Abstract: Provided is a lamp for a vehicle which is capable of forming a beam pattern having a cutoff line with a moderate sharpness. The lamp includes a light source portion, a first lens portion with a plurality of micro incident lenses, a second lens portion with a plurality of micro exit lenses corresponding to the plurality of micro incident lenses, respectively, and a shielding portion which includes a plurality of shields which form a plurality of illumination regions for forming a beam pattern by obstructing a portion of light which is incident onto each of the plurality of micro exit lenses. In particular, upper boundary lines of illumination regions formed by a first set of the plurality of shields are formed in positions different from those of upper boundary lines of illumination regions formed by a second set of the plurality of shields.Type: GrantFiled: July 17, 2018Date of Patent: April 30, 2019Assignee: SL CorporationInventors: Jongwoon Kim, Nakjung Choi, Hyeongdo Kim, Kihae Shin
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Publication number: 20190032881Abstract: Provided is a lamp for a vehicle which is capable of forming a beam pattern having a cutoff line with a moderate sharpness. The lamp includes a light source portion, a first lens portion with a plurality of micro incident lenses, a second lens portion with a plurality of micro exit lenses corresponding to the plurality of micro incident lenses, respectively, and a shielding portion which includes a plurality of shields which form a plurality of illumination regions for forming a beam pattern by obstructing a portion of light which is incident onto each of the plurality of micro exit lenses. In particular, upper boundary lines of illumination regions formed by a first set of the plurality of shields are formed in positions different from those of upper boundary lines of illumination regions formed by a second set of the plurality of shields.Type: ApplicationFiled: July 17, 2018Publication date: January 31, 2019Inventors: Jongwoon Kim, Nakjung Choi, Hyeongdo Kim, Kihae Shin
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Publication number: 20190024865Abstract: Provided is a lamp for a vehicle capable of ensuring light efficiency to satisfy the performance requirements for light distribution. The lamp includes a light source portion, a first lens portion with a plurality of micro incident lenses onto which light generated by the light source portion is incident, a second lens portion with a plurality of micro exit lenses corresponding to the plurality of micro incident lenses, respectively, and a shielding portion with a plurality of shields that are disposed on rear focal points of the plurality of micro exit lenses to obstruct a portion of incident light. In particular, a focal distance of a micro exit lens among the plurality of micro exit lenses is shorter than a focal distance of a micro incident lens among the plurality of micro incident lenses, which corresponds to the micro exit lens.Type: ApplicationFiled: July 17, 2018Publication date: January 24, 2019Inventors: Jongwoon Kim, Nakjung Choi, Hyeongdo Kim, Kihae Shin