Patents by Inventor Junghwan Shin
Junghwan Shin 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: 11972831Abstract: A receiver that receives a multi-level signal includes a pre-amplifier circuit, a slicer circuit and a decoder circuit. The pre-amplifier circuit generates a plurality of intermediate data signals based on an input data signal and a plurality of reference voltages. The slicer circuit generates a plurality of decision signals based on the plurality of intermediate data signals and a clock signal. The decoder circuit generates output data based on the plurality of decision signals. The pre-amplifier circuit includes a first circuit and a second circuit. The first circuit generates one of the plurality of intermediate data signals based on the input data signal and one of the plurality of reference voltages, and has a first structure. The second circuit generates another one of the plurality of intermediate data signals based on the input data signal and another one of the plurality of reference voltages, and has a second structure different from the first structure.Type: GrantFiled: May 27, 2022Date of Patent: April 30, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyunsub Rie, Eunseok Shin, Youngdon Choi, Changsoo Yoon, Hyunyoon Cho, Junghwan Choi
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Patent number: 11958937Abstract: One embodiment relates to a polymerizable composition and an optical material produced therefrom which has excellent lightfastness and minimized color defects, and more specifically, the polymerizable composition according to one embodiment includes UV absorbers having, as the main absorption wavelength, either a long-wavelength region or a short-Wavelength region Within the UV region, wherein the UV absorbers do not absorb in the Visible light region. Accordingly, the polymerizable composition may be used to provide an optical material having excellent lightfastness and minimized color defects.Type: GrantFiled: June 4, 2019Date of Patent: April 16, 2024Assignee: SK PUCORE CO., LTD.Inventors: Seung Mo Hong, Jung Hwan Myung, Hyuk Hee Han, Jeongmoo Kim, Junghwan Shin
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Patent number: 11954142Abstract: A method and a system for producing a story video are provided. A method for producing a story video, according to one embodiment, can produce a specific story video by determining a theme of a story that is suitable for collected videos and selecting and arranging an appropriate video for each frame of a template associated with the theme.Type: GrantFiled: May 25, 2023Date of Patent: April 9, 2024Assignee: Snow CorporationInventors: Junghwan Jin, Sungwook Kim, Sangho Choi, Byung-Sun Park, Wonhyo Yi, Seongyeop Jeong, Noah Hahm, Jimin Kim, Hyeongbae Shin
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Patent number: 11935677Abstract: A magnetic device includes a fixed layer including a fixed pattern, a free layer, and a tunnel barrier between the fixed layer and the free layer. The fixed pattern includes a first magnetic pattern, a second magnetic pattern, and a hybrid spacer, including a nonmagnetic material layer, between the first magnetic pattern and the second magnetic pattern, the nonmagnetic material including a plurality of magnetic nanoparticles dispersed therein.Type: GrantFiled: June 17, 2021Date of Patent: March 19, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Younghyun Kim, Sechung Oh, Naoki Hase, Heeju Shin, Junghwan Park
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Patent number: 11914416Abstract: A transmitter circuit that receives parallel signals and outputs a serial signal in response to the parallel signals may include; a clock generator generating first clock signals having different respective phases, a multiplexer including selection circuits respectively configured to selectively provide at least two of the parallel signals to an output node in response to at least two of the first clock signals, and an output driver generating the serial signal by amplifying a signal at the output node.Type: GrantFiled: May 5, 2022Date of Patent: February 27, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Junyoung Park, Joohwan Kim, Jindo Byun, Eunseok Shin, Hyunyoon Cho, Youngdon Choi, Junghwan Choi
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Patent number: 11760721Abstract: An embodiment relates to a polymeric composition for a polythiourethane-based optical material, wherein the polymeric composition, comprising a particular additive, may appropriately adjust the reactivity of an isocyanate such that viscosity is maintained low for a predetermined period of time, and thus is capable of preparing a high-quality polythiourethane-based optical material, without a complicated purification process. Moreover, a polythiourethane-based optical material according to an embodiment has not only a uniform refractive index, but also a low yellow index, and thus may be used as a variety of plastic optical lenses, such as an eyeglass lens or a camera lens and the like.Type: GrantFiled: June 26, 2017Date of Patent: September 19, 2023Assignee: SKC CO., LTD.Inventors: Seung Mo Hong, Jung Hwan Myung, Hyeon Myeong Seo, Junghwan Shin
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Patent number: 11673992Abstract: An embodiment relates to an isocyanate composition with improved stability and reactivity and a plastic optical lens using the same. The isocyanate composition has improved stability since the content of chlorine in the composition is adjusted to 22-500 ppm, and thus the isocyanate composition can prevent the deterioration in reactivity even in the long-term storage. Therefore, the isocyanate composition according to an example, even when used after long-term storage after preparation, can be prepared, through polymerization with a thiol-based compound, as a polythiourethane-based optical material with excellent physical properties, such as refractive index, Abbe number, transparency, glass transition temperature, and yellowness, and thus the isocyanate composition is useful in fields of glass lenses, a camera lens, and the like.Type: GrantFiled: December 26, 2018Date of Patent: June 13, 2023Assignee: SKC CO., LTD.Inventors: Junghwan Shin, Jung Hwan Myung, Hyuk Hee Han
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Patent number: 11578038Abstract: The embodiments relate to a process for preparing a polythiol composition, which comprises reacting a halogen compound or an alcohol compound with thiourea to prepare a thiouronium salt solution; and adding a basic solution to the thiouronium salt solution to hydrolyze it. The hydrolysis reaction is terminated when the area of peak A in the graph measured by gel permeation chromatography of the reactant in the hydrolysis step under certain conditions is 0.5% to 8% based on the total peak area. A tetrafunctional polythiol composition having high purity can be obtained. Thus, an optical lens having excellent color, transparency, and refractive index can be obtained.Type: GrantFiled: December 10, 2020Date of Patent: February 14, 2023Assignee: SKC CO., LTD.Inventors: Jaeyoung Pai, Seung Mo Hong, Hyeon Myeong Seo, Junghwan Shin, Jeongmoo Kim, Jung Hwan Myung, Hyuk Hee Han
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Patent number: 11572432Abstract: Embodiments relate to a polythiourethane-based plastic lens. When a polythiourethane-based plastic lens is polymerized according to the embodiment, the types, contents, and the like of the polythiol compounds and the isocyanate compounds are adjusted to control the storage moduli at room temperature and high temperatures, their variations, the energy attenuation (KEL) obtained therefrom, and the glass transition temperature, whereby the polythiourethane-based plastic lens thus obtained is enhanced in impact resistance and thermal resistance.Type: GrantFiled: January 11, 2019Date of Patent: February 7, 2023Assignee: SKC CO., LTD.Inventors: Junghwan Shin, Jung Hwan Myung, Jongmin Shim, Hyuk Hee Han
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Patent number: 11453643Abstract: According to one embodiment, in producing polythiols in a manner similar to a conventional method, a polythiol having improved storage stability may be produced in a convenient manner by adjusting reaction conditions so as to prevent thiourea from remaining within products. In particular, the equivalent weight of thiourea to be used in a reaction may be adjusted to a predetermined range, thereby reducing the amount of unreacted thiourea, and thiourea may be removed once more in a sub sequent process, thereby effectively removing remaining thiourea while achieving a high yield. The polythiol thus produced does not contain residual thiourea, and thus does not show discoloration or cloudiness caused by precipitates even under prolonged storage or high-temperature conditions.Type: GrantFiled: April 25, 2019Date of Patent: September 27, 2022Assignee: SKC CO., LTD.Inventors: Seung Mo Hong, Hyeon Myeong Seo, Junghwan Shin, Jeongmoo Kim
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Patent number: 11279673Abstract: An embodiment relates to an aromatic polythiol compound for optical materials, and the aromatic polythiol compound according to the embodiment contains a phenyl group and a large number of sulfur atoms in its polythiol structure so that a polymerizable composition and an optical material obtained therefrom have excellent optical properties such as high refractive index and low specific gravity, as well as excellent mechanical properties such as low cure shrinkage; thus, they can be advantageously used for producing various plastic optical lenses such as eyeglass lenses and camera lenses.Type: GrantFiled: July 6, 2017Date of Patent: March 22, 2022Assignee: SKC CO., LTD.Inventors: Seung Mo Hong, Hyeon Myeong Seo, Jongmin Shim, Sang Mook Kim, Jung Hwan Myung, Junghwan Shin
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Patent number: 11248011Abstract: Embodiments relate to a polymerizable composition comprising a phosphorus-based mold releasing agent for an optical use whose preparation process is improved, and a process for preparing the phosphorus-based mold releasing agent. The phosphorus-based mold releasing agents can be prepared more easily and conveniently by using phosphorous pentoxide, which can easily react with a monoalcohol and/or water at room temperature in the absence of a catalyst or a solvent. In addition, byproducts are not generated during the reaction. Thus, when a lens is produced by using the mold release agent obtained therefrom, it is possible to prevent a defective appearance of the lens that may be caused by byproducts, thereby further enhancing the appearance properties thereof. Further, since separate steps for removing byproducts, specifically, such steps as washing and filtration, are not required, wastewater is not generated.Type: GrantFiled: February 22, 2019Date of Patent: February 15, 2022Assignee: SKC CO., LTD.Inventors: Seung Mo Hong, Jongmin Shim, Jung Hwan Myung, Junghwan Shin
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Patent number: 11201172Abstract: Disclosed is a semiconductor device including a substrate with first and second regions adjacent to each other in a first direction, and first to third gate electrodes extending from the first region toward the second region. Each of the first and second regions includes a PMOSFET region and an NMOSFET region. The first to third gate electrodes extend in the first direction and are sequentially arranged in a second direction different from the first direction. The first and third gate electrodes are supplied with a first signal. The second gate electrode is supplied with a second signal that is an inverted signal of the first signal. The first gate electrode includes a first gate of the first region and a first gate of the second region. The first gates are aligned and connected with each other in the first direction.Type: GrantFiled: January 21, 2021Date of Patent: December 14, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae-Woo Seo, Ki-Man Park, Ha-Young Kim, Junghwan Shin, Keunho Lee, Sungwe Cho
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Patent number: 11155006Abstract: In the method and the apparatus for releasing a molded article from a mold according to the embodiments, the lateral of the molded article in the mold is pressed, so that it is possible to minimize the damage of the mold and the molded article at the time of the release, while the amount of a mold release agent used is minimized.Type: GrantFiled: November 1, 2018Date of Patent: October 26, 2021Assignee: SKC CO., LTD.Inventors: Junghwan Shin, Jung Hwan Myung, Hyuk Hee Han, Jongmin Shim
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Publication number: 20210230352Abstract: Provided is a method for manufacturing diisocyanate and an optical lens in which, during the manufacture of diisocyanate from diamine via diamine hydrochloride, use is made of an aqueous hydrochloric acid solution and an organic solvent instead of hydrogen chloride gas and solid-phase triphosgen instead of phosgen gas while reaction conditions are controlled, whereby the diisocyanate of high quality can be manufactured at excellent yield, with the causation of less environmental problems.Type: ApplicationFiled: June 5, 2019Publication date: July 29, 2021Inventors: Dal Seong KIM, Oh Joon KWON, Sung Gi LEE, Gyeong Ha CHOI, Junghwan SHIN
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Publication number: 20210230351Abstract: One embodiment relates to a polymerizable composition and an optical material produced therefrom which has excellent lightfastness and minimized color defects, and more specifically, the polymerizable composition according to one embodiment includes UV absorbers having, as the main absorption wavelength, either a long-wavelength region or a short-Wavelength region Within the UV region, wherein the UV absorbers do not absorb in the Visible light region. Accordingly, the polymerizable composition may be used to provide an optical material having excellent lightfastness and minimized color defects.Type: ApplicationFiled: June 4, 2019Publication date: July 29, 2021Inventors: Seung Mo HONG, Jung Hwan MYUNG, Hyuk Hee HAN, Jeongmoo KIM, Junghwan SHIN
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Publication number: 20210179552Abstract: The embodiments relate to a process for preparing a polythiol composition, which comprises reacting a halogen compound or an alcohol compound with thiourea to prepare a thiouronium salt solution; and adding a basic solution to the thiouronium salt solution to hydrolyze it. The hydrolysis reaction is terminated when the area of peak A in the graph measured by gel permeation chromatography of the reactant in the hydrolysis step under certain conditions is 0.5% to 8% based on the total peak area. A tetrafunctional polythiol composition having high purity can be obtained. Thus, an optical lens having excellent color, transparency, and refractive index can be obtained.Type: ApplicationFiled: December 10, 2020Publication date: June 17, 2021Inventors: Jaeyoung PAI, Seung Mo HONG, Hyeon Myeong SEO, Junghwan SHIN, Jeongmoo KIM, Jung Hwan MYUNG, Hyuk Hee HAN
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Publication number: 20210171491Abstract: According to one embodiment, in producing polythiols in a manner similar to a conventional method, a polythiol having improved storage stability may be produced in a convenient manner by adjusting reaction conditions so as to prevent thiourea from remaining within products. In particular, the equivalent weight of thiourea to be used in a reaction may be adjusted to a predetermined range, thereby reducing the amount of unreacted thiourea, and thiourea may be removed once more in a sub sequent process, thereby effectively removing remaining thiourea while achieving a high yield. The polythiol thus produced does not contain residual thiourea, and thus does not show discoloration or cloudiness caused by precipitates even under prolonged storage or high-temperature conditions.Type: ApplicationFiled: April 25, 2019Publication date: June 10, 2021Inventors: Seung Mo HONG, Hyeon Myeong SEO, Junghwan SHIN, Jeongmoo KIM
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Publication number: 20210163669Abstract: An embodiment relates to an isocyanate composition with improved stability and reactivity and a plastic optical lens using the same. The isocyanate composition has improved stability since the content of chlorine in the composition is adjusted to 22-500 ppm, and thus the isocyanate composition can prevent the deterioration in reactivity even in the long-term storage. Therefore, the isocyanate composition according to an example, even when used after long-term storage after preparation, can be prepared, through polymerization with a thiol-based compound, as a polythiourethane-based optical material with excellent physical properties, such as refractive index, Abbe number, transparency, glass transition temperature, and yellowness, and thus the isocyanate composition is useful in fields of glass lenses, a camera lens, and the like.Type: ApplicationFiled: November 26, 2018Publication date: June 3, 2021Inventors: Junghwan SHIN, Jung Hwan MYUNG, Hyuk Hee HAN
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Publication number: 20210143181Abstract: Disclosed is a semiconductor device including a substrate with first and second regions adjacent to each other in a first direction, and first to third gate electrodes extending from the first region toward the second region. Each of the first and second regions includes a PMOSFET region and an NMOSFET region. The first to third gate electrodes extend in the first direction and are sequentially arranged in a second direction different from the first direction. The first and third gate electrodes are supplied with a first signal. The second gate electrode is supplied with a second signal that is an inverted signal of the first signal. The first gate electrode includes a first gate of the first region and a first gate of the second region. The first gates are aligned and connected with each other in the first direction.Type: ApplicationFiled: January 21, 2021Publication date: May 13, 2021Inventors: JAE-WOO SEO, KI-MAN PARK, HA-YOUNG KIM, JUNGHWAN SHIN, KEUNHO LEE, SUNGWE CHO