Patents by Inventor Seong Min Cho
Seong Min Cho 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: 9938391Abstract: The present invention relates to a method for preparing a polyolefin resin composition including the step of mixing a first resin chip including a first polyolefin resin and glass filaments and a second resin chip including a second polyolefin resin and an aerogel or glass bubbles, a polyolefin resin composition including a first resin chip including a first polyolefin resin and glass filaments and a second resin chip including a second polyolefin resin and an aerogel or glass bubbles, and a polyolefin resin molded article including an extrusion molded article of the polyolefin resin composition.Type: GrantFiled: July 6, 2015Date of Patent: April 10, 2018Assignee: LOTTE CHEMICAL CORPORATIONInventors: Eun Hwa Jang, Young-Bum Kim, Seong-Min Cho
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Patent number: 9936190Abstract: An optical modulation device is provided. The optical modulation device includes first and second plates facing each other, a liquid crystal layer interposed between the first and second plates, and first and second electrodes. The liquid crystal layer includes a plurality of liquid crystal molecules. The first plate includes a first aligner. The second plate includes a second aligner. A first alignment direction of the first aligner and a second alignment direction of the second aligner are substantially parallel to each other. The first and second electrodes extend to cross each other. The first and second electrodes are insulated from each other. The second electrode extends to cross the second alignment direction. An angle ?P formed between a vertical axis of the second alignment direction and an extending direction of the second electrode is a value between 5° and 45°.Type: GrantFiled: June 12, 2015Date of Patent: April 3, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jung-Hyun Cho, Seung Jun Jeong, Seong Min Cho
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Patent number: 9803059Abstract: A polyolefin resin molded product includes a base which comprises at least one kind of polypropylene resin having a crystallization temperature of 112° C. to 150° C.; low density polyethylene; an inorganic filler; and an olefin polymer comprising 2 wt % to 10 wt % of a reactive functional group bonded to a main chain or an end thereof and having a diameter of 0.5 ?m to 200 ?m. The base has foam cells having an average diameter of 20 ?m to 50 ?m are distributed on thereon.Type: GrantFiled: November 28, 2014Date of Patent: October 31, 2017Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, LOTTE CHEMICAL CORPORATIONInventors: Hak Soo Kim, Dae Sik Kim, KieYoun Jeong, Young-Gyu You, Byung-kook Nam, Seong Min Cho
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Patent number: 9779647Abstract: A display device according to an exemplary embodiment of the present invention includes: a display panel including a plurality of pixels respectively displaying a first color, a second color, and a third color; and a signal controller controlling the display panel by processing an input image signal, wherein, in a color weakness mode, at least one color among the first to third colors is displayed with a higher gray than an input gray of the input image signal, and the other colors are displayed with the same gray as the input gray of the input image signal.Type: GrantFiled: February 16, 2015Date of Patent: October 3, 2017Assignee: Samsung Display Co., Ltd.Inventors: Chan Young Park, Jong Sung Bae, Dong Hyeon Lee, Jusuck Lee, Hee Soon Jeong, Seong Min Cho, Eun Sil Han, Jeong Jin Hong
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Patent number: 9767745Abstract: A method for driving an optical modulation device is provided. The optical modulation device includes first and second portions. Each of the first and second portions includes a first plate, a second plate opposite to the first plate, and a liquid crystal layer disposed between the first and second plates. The method includes forming a forward phase gradient in the first portion by applying a first driving signal to first and second electrodes in the first plate of the first portion and a third electrode in the second plate of the first portion. The method further includes forming a reverse phase gradient in the second portion by applying a second driving signal differing from the first driving signal to fourth and fifth electrodes in the first plate of the second portion and a sixth electrode in the second plate of the second portion.Type: GrantFiled: May 5, 2015Date of Patent: September 19, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Seung Jun Jeong, Yoon Kyung Park, Hyun Seung Seo, Soo Hee Oh, Seong Min Cho
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Publication number: 20170263762Abstract: Provided are a low-cost semiconductor device manufacturing method and a semiconductor device made using the method. The method includes forming multiple body regions in a semiconductor substrate, forming multiple gate insulating layers and multiple gate electrodes in the body region; implementing a blanket ion implantation in an entire surface of the substrate to form a low concentration doping region (LDD region) in the body region without a mask, forming a spacer at a side wall of the gate electrode, and implementing a high concentration ion implantation to form a high concentration source region and a high concentration drain region around the LDD region. According to the examples, devices have favorable electrical characteristics and at the same time, manufacturing costs are reduced. Since, when forming high concentration source region and drain regions, tilt and rotation co-implants are applied, an LDD masking step is potentially omitted.Type: ApplicationFiled: May 22, 2017Publication date: September 14, 2017Applicant: Magnachip Semiconductor, Ltd.Inventors: Francois HEBERT, Yon Sup PANG, Yu Shin RYU, Seong Min CHO, Ju Ho KIM
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Patent number: 9743508Abstract: An electroless surface treatment plated layer of a printed circuit board, a method for preparing the same, and printed circuit board including the same. The electroless surface treatment plated layer includes: electroless nickel (Ni) plated coating/palladium (Pd) plated coating/gold (Au) plated coating, wherein the electroless nickel, palladium, and gold plated coatings have thicknesses of 0.02 to 1 ?m, 0.01 to 0.3 ?m, and 0.01 to 0.5 ?m, respectively. In the electroless surface treatment plated layer of the printed circuit board, a thickness of the nickel plated coating is specially minimized to 0.02 to 1 ?m, thereby making it possible to form an optimized electroless Ni/Pd/Au surface treatment plated layer.Type: GrantFiled: September 8, 2015Date of Patent: August 22, 2017Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Dong Jun Lee, Dong Ju Jeon, Jung Youn Pang, Seong Min Cho, Chi Seong Kim
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Publication number: 20170194401Abstract: The described technology relates generally to a thin film transistor for a display device and an organic light emitting diode display device including the same.Type: ApplicationFiled: July 13, 2016Publication date: July 6, 2017Inventors: SEONG MIN CHO, SUK HOON KU
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Patent number: 9691893Abstract: Provided are a low-cost semiconductor device manufacturing method and a semiconductor device made using the method. The method includes forming multiple body regions in a semiconductor substrate, forming multiple gate insulating layers and multiple gate electrodes in the body region; implementing a blanket ion implantation in an entire surface of the substrate to form a low concentration doping region (LDD region) in the body region without a mask, forming a spacer at a side wall of the gate electrode, and implementing a high concentration ion implantation to form a high concentration source region and a high concentration drain region around the LDD region. According to the examples, devices have favorable electrical characteristics and at the same time, manufacturing costs are reduced. Since, when forming high concentration source region and drain regions, tilt and rotation co-implants are applied, an LDD masking step is potentially omitted.Type: GrantFiled: October 20, 2014Date of Patent: June 27, 2017Assignee: Magnachip Semiconductor, Ltd.Inventors: Francois Hebert, Yon Sup Pang, Yu Shin Ryu, Seong Min Cho, Ju Ho Kim
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Patent number: 9666700Abstract: The present disclosure relates to a vertical bipolar junction transistor. A vertical bipolar junction transistor includes a high concentration doping region emitter terminal disposed on a semiconductor substrate; a high concentration doping region collector terminal disposed on a semiconductor substrate; a high concentration doping region base terminal disposed between the emitter terminal and the collector terminal; a drift region having a first doping concentration surrounding the emitter terminal and being deeper than either the base terminal or the collector terminal; a base layer disposed below the drift region; a collector layer in contact with the base layer, the collector layer having a second doping concentration higher than the first doping concentration. The manufacturing cost of the vertical bipolar junction transistor can be lowered and a current gain can be elevated using a low-cost BCD process.Type: GrantFiled: October 28, 2014Date of Patent: May 30, 2017Assignee: MagnaChip Semiconductor, Ltd.Inventors: Francois Hebert, Yon Sup Pang, Seong Min Cho, Ju Ho Kim
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Publication number: 20170121486Abstract: The present invention relates to a method for preparing a polyolefin resin composition including the step of mixing a first resin chip including a first polyolefin resin and glass filaments and a second resin chip including a second polyolefin resin and an aerogel or glass bubbles, a polyolefin resin composition including a first resin chip including a first polyolefin resin and glass filaments and a second resin chip including a second polyolefin resin and an aerogel or glass bubbles, and a polyolefin resin molded article including an extrusion molded article of the polyolefin resin composition.Type: ApplicationFiled: July 6, 2015Publication date: May 4, 2017Inventors: Eun Hwa JANG, Young-Bum KIM, Seong-Min CHO
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Patent number: 9499689Abstract: The present invention provides a carbon fiber reinforced polypropylene resin composition with improved molding property. In particular, provided is a carbon fiber reinforced polypropylene resin composition with significantly improved molding property, tensile strength, flexural strength and the like by adding a modified polypropylene grafted with maleic anhydride as a compatibilizer to a polypropylene resin to reinforce the carbon fiber.Type: GrantFiled: September 8, 2014Date of Patent: November 22, 2016Assignees: Hyundai Motor Company, Lotte Chemical CorporationInventors: Chi Hoon Choi, Young Ho Choi, Gi Hwan Kim, Jeong Min Cho, Eun Hwa Jang, Seong Min Cho, Chang Hyoo Choi
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Publication number: 20160326350Abstract: The present invention relates to a preparing method of a polyolefin resin mono chip including: forming a thermoplastic resin composite by impregnating a fiber reinforcing agent having a length of 5 mm to 20 mm into a molten mixture including a propylene homopolymer of which a molecular weight distribution is 3 to 6, and a colorant, wherein a cooling speed at room temperature of the thermoplastic resin composite is 19° C./min or more. In addition, the present invention relates to a polyolefin resin mono chip including: a thermoplastic resin composite including a polymer substrate including a propylene homopolymer of which a molecular weight distribution is 3 to 6, and a colorant; and a fiber reinforcing agent having a length of 5 mm to 20 mm and impregnated into the polymer substrate, wherein an impact strength measured according to ASTM D256 is 200 J/m or more.Type: ApplicationFiled: April 28, 2016Publication date: November 10, 2016Inventors: Eun Hwa JANG, Seong-Min CHO, Young-Bum KIM, Byeong Kyu MOON
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Publication number: 20160203785Abstract: An optical modulation device is provided. The optical modulation device includes first and second plates facing each other, a liquid crystal layer interposed between the first and second plates, and first and second electrodes. The liquid crystal layer includes a plurality of liquid crystal molecules. The first plate includes a first aligner. The second plate includes a second aligner. A first alignment direction of the first aligner and a second alignment direction of the second aligner are substantially parallel to each other. The first and second electrodes extend to cross each other. The first and second electrodes are insulated from each other. The second electrode extends to cross the second alignment direction. An angle ?P formed between a vertical axis of the second alignment direction and an extending direction of the second electrode is a value between 5° and 45°.Type: ApplicationFiled: June 12, 2015Publication date: July 14, 2016Inventors: JUNG-HYUN CHO, SEUNG JUN JEONG, SEONG MIN CHO
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Publication number: 20160156903Abstract: A method for driving an optical modulation device is provided. The optical modulation device includes first and second portions. Each of the first and second portions includes a first plate, a second plate opposite to the first plate, and a liquid crystal layer disposed between the first and second plates. The method includes forming a forward phase gradient in the first portion by applying a first driving signal to first and second electrodes in the first plate of the first portion and a third electrode in the second plate of the first portion. The method further includes forming a reverse phase gradient in the second portion by applying a second driving signal differing from the first driving signal to fourth and fifth electrodes in the first plate of the second portion and a sixth electrode in the second plate of the second portion.Type: ApplicationFiled: May 5, 2015Publication date: June 2, 2016Inventors: SEUNG JUN JEONG, Yoon Kyung Park, Hyun Seung Seo, Soo Hee Oh, Seong Min Cho
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Publication number: 20160103343Abstract: The present invention provides an optical path converting element. The optical path converting element includes a first layer, a second layer, and a liquid crystal layer. The first layer includes at least one first-layer electrode. The second layer includes at least one second-layer electrode. The liquid crystal layer is interposed between the first layer and the second layer. Liquid crystal of the liquid crystal layer has a first state or a second state in accordance with a voltage applied to the first-layer and second layer electrodes. The liquid crystal of the liquid crystal layer is vertically aligned in the first state. The liquid crystal of the liquid crystal layer is horizontally aligned in the second state. The liquid crystal of the liquid crystal layer is spirally aligned in a first direction in the second state. The liquid crystal of the liquid crystal layer has chirality.Type: ApplicationFiled: April 29, 2015Publication date: April 14, 2016Inventors: SEONG MIN CHO, Soo Hee Oh, Seung Jun Jeong
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Publication number: 20160071468Abstract: A display device according to an exemplary embodiment of the present invention includes: a display panel including a plurality of pixels respectively displaying a first color, a second color, and a third color; and a signal controller controlling the display panel by processing an input image signal, wherein, in a color weakness mode, at least one color among the first to third colors is displayed with a higher gray than an input gray of the input image signal, and the other colors are displayed with the same gray as the input gray of the input image signal.Type: ApplicationFiled: February 16, 2015Publication date: March 10, 2016Inventors: Chan Young PARK, Jong Sung BAE, Dong Hyeon LEE, Jusuck LEE, Hee Soon JEONG, Seong Min CHO, Eun Sil HAN, Jeong Jin HONG
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Publication number: 20160066434Abstract: The circuit board provided with a first conductive pattern and a second conductive pattern performed by different types of surface treatments are disclosed. The circuit board in accordance with one embodiment of the present invention forms the first conductive pattern and the second conductive pattern on an insulating layer, wherein the first metal plating layer and the second metal plating layer are formed on the surface of the first conductive pattern, the second metal plating layer is formed on the surface of the second conductive pattern, and the second metal plating layer is made of the material different from that of the first metal plating layer to be exposed to the outside, whereby the pattern pitch is easily reduced, the reduction of the electrical characteristics due to the surface treatment can be minimized and the efficiency of the manufacturing process may be improved.Type: ApplicationFiled: July 30, 2015Publication date: March 3, 2016Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Seong Min CHO, Jung Youn KIM, Sang Kun KIM
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Publication number: 20150382452Abstract: An electroless surface treatment plated layer of a printed circuit board, a method for preparing the same, and printed circuit board including the same. The electroless surface treatment plated layer includes: electroless nickel (Ni) plated coating/palladium (Pd) plated coating/gold (Au) plated coating, wherein the electroless nickel, palladium, and gold plated coatings have thicknesses of 0.02 to 1 ?m, 0.01 to 0.3 ?m, and 0.01 to 0.5 ?m, respectively. In the electroless surface treatment plated layer of the printed circuit board, a thickness of the nickel plated coating is specially minimized to 0.02 to 1 ?m, thereby making it possible to form an optimized electroless Ni/Pd/Au surface treatment plated layer.Type: ApplicationFiled: September 8, 2015Publication date: December 31, 2015Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Dong Jun LEE, Dong Ju JEON, Jung Youn PANG, Seong Min CHO, Chi Seong KIM
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Publication number: 20150361237Abstract: A polyolefin resin molded product includes a base which comprises at least one kind of polypropylene resin having a crystallization temperature of 112° C. to 150° C.; low density polyethylene; an inorganic filler; and an olefin polymer comprising 2 wt % to 10 wt % of a reactive functional group bonded to a main chain or an end thereof and having a diameter of 0.5 ?m to 200 ?m. The base has foam cells having an average diameter of 20 ?m to 50 ?m are distributed on thereon.Type: ApplicationFiled: November 28, 2014Publication date: December 17, 2015Inventors: Hak Soo KIM, Dae Sik KIM, KieYoun JEONG, Young-Gyu YOU, Byung-kook NAM, Seong Min CHO