Patents by Inventor Song-Yi Han
Song-Yi 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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Patent number: 12218345Abstract: The present invention relates to an electrode sheet comprising: a first cathode mixture layer which is formed in a central portion of a holding part and contains a first cathode active material of lithium nickel cobalt manganese oxide; and a second cathode mixture layer which is formed at one end or both ends of the first cathode mixture layer and contains a second cathode active material lower in nickel content than the first cathode active material, wherein a rolling density b of the second cathode mixture layer is lower than a rolling density a of the first cathode mixture layer, whereby the electrode sheet has the effect of improving the energy density while suppressing a reaction with water.Type: GrantFiled: April 20, 2021Date of Patent: February 4, 2025Assignee: LG ENERGY SOLUTION, LTD.Inventors: Song Yi Han, Ji Hoon Ryu
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Publication number: 20250038182Abstract: A positive electrode active material for a lithium secondary battery includes a lithium transition metal oxide containing nickel, cobalt, and manganese and a cobalt-containing coating layer. The lithium transition metal oxide is in the form of a secondary particle in which primary particles are aggregated. The coating layer is formed at interface between the primary particles positioned on the surface and inside of the lithium transition metal oxide secondary particle. A spectrum measured for the lithium transition metal by TEM-EELS includes a first peak in a region from a surface of a primary particle in a surface portion of the secondary particle to a depth of 50 nm, and a second peak in a region from the surface of a primary particle in a core portion of secondary particle to a depth of 50 nm.Type: ApplicationFiled: December 22, 2022Publication date: January 30, 2025Applicant: LG Chem, LtdInventors: Jun Ho Eom, Song Yi Han, Chae Jin Lim, Ji Hye Kim, Jun Won Lee, No Woo Kwak
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Patent number: 12198625Abstract: The present inventive concept provides a display device including a pixel unit which includes pixels, a sensing unit connected to the pixels through sensing lines, a first power voltage generator connected to the pixels through a first power line and generating a first power voltage for driving the pixels, a second power voltage generator connected to the pixels through the first power line and generating a second power voltage for sensing the pixels, and a timing controller selectively controlling operations of the first power voltage generator and the second power voltage generator according to a driving method of the pixel unit, and a method driving the same.Type: GrantFiled: April 21, 2023Date of Patent: January 14, 2025Assignee: Samsung Display Co., Ltd.Inventors: Sang Hyun Lee, Dae Sik Lee, Keun Oh Kang, Si Duk Sung, Song Yi Han
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Patent number: 12189238Abstract: A backlight unit includes a substrate comprising a first area having light source blocks and a second area having light source blocks, and a light source driver disposed on at least one side of the substrate and electrically connected to the light source blocks of each of the first and second areas through each of first and second sensing lines. The first sensing lines electrically connected to the light source blocks of the first area have a first resistance value, and the second sensing lines electrically connected to the light source blocks of the second area have a second resistance value.Type: GrantFiled: April 7, 2020Date of Patent: January 7, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dae Sik Lee, Sung Chul Hong, Jun Pyo Lee, Ji Eun Lee, Song Yi Han
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Patent number: 12182490Abstract: A semiconductor design automation system comprises a simulator configured to generate simulation data, a recovery module configured to correct a sampling error of the simulation data to generate recovery simulation data, a hardware data module configured to generate real data, a preprocessing module configured to preprocess the real data to generate preprocessed real data, a database configured to store the recovery simulation data and the preprocessed real data, a first graphic user interface including an automatic simulation generator configured to generate a machine learning model of the recovery simulation data and the preprocessed real data and generate predicted real data therefrom, and a second graphic user interface including a visualization unit configured to generate a visualized virtualization process result from the machine learning model.Type: GrantFiled: May 12, 2023Date of Patent: December 31, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Song-Yi Han, Jae Min Kim, Jae Ho Kim, Ji-Seong Doh, Kang-Hyun Baek, Young Kyou Shin, Seong Hun Jang, Young Jun Cho, Yun Ji Choi
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Patent number: 12142558Abstract: A semiconductor device includes a first lower line and a second lower line on a substrate, the first and second lower lines extending in a first direction, being adjacent to each other, and being spaced apart along a second direction, orthogonal the first direction, an airgap between the first and second lower lines and spaced therefrom along the second direction, a first insulating spacer on a side wall of the first lower line facing the second lower line, wherein a distance from the first airgap to the first lower line along the second direction is equal to or greater than an overlay specification of a design rule of the semiconductor device, and a second insulating spacer between the airgap and the second lower line.Type: GrantFiled: April 28, 2021Date of Patent: November 12, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Naoya Inoue, Dong Won Kim, Young Woo Cho, Ji Won Kang, Song Yi Han
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Patent number: 12119480Abstract: The present invention relates to a method of manufacturing a secondary battery with improved resistance. According to the present invention, since the electrode assembly with succinonitrile interposed at the interface between the electrode and the separator is manufactured and then laminated, a high-pressure process is not required during lamination compared to the prior art, thereby improving processability, and since succinonitrile is dissolved in the electrolyte solution, it exhibits an effect of improving the resistance of the battery.Type: GrantFiled: September 16, 2020Date of Patent: October 15, 2024Assignee: LG Energy Solution, Ltd.Inventors: Ji Hoon Ryu, Song Yi Han
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Patent number: 11955594Abstract: The electrode comprises: a plurality of unit electrodes formed by connecting a plurality of electrodes made of an electrode mixture having a solid shape to each other; a separator interposed between the plurality of unit electrodes; and an electrode tab attached to the unit electrode, wherein the electrode tab comprises first and second electrode tabs, which are respectively attached to the unit electrodes and have different specific resistance.Type: GrantFiled: October 14, 2022Date of Patent: April 9, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Dae Soo Kim, Young Deok Kim, Song Yi Han
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Publication number: 20240071292Abstract: A display device includes: a display panel; a driving voltage generator; a power voltage generator; an input voltage generator; and a timing controller. The display panel is provided with a pixel configured to emit light by using a driving voltage. The driving voltage generator is configured to supply the driving voltage to the pixel. The power voltage generator is configured to generate power voltages for driving of the display panel by using an input voltage, and generating an input voltage sensing value by sensing the input voltage. The input voltage generator is configured to supply the input voltage to the power voltage generator. The timing controller is configured to control an operation of at least one of the driving voltage generator, the power voltage generator, and the input voltage generator according to the input voltage sensing value.Type: ApplicationFiled: February 21, 2023Publication date: February 29, 2024Inventors: Keun Oh KANG, Dae Sik Lee, Si Duk Sung, Sang Hyun Lee, Song Yi Han
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Publication number: 20240046868Abstract: The present inventive concept provides a display device including a pixel unit which includes pixels, a sensing unit connected to the pixels through sensing lines, a first power voltage generator connected to the pixels through a first power line and generating a first power voltage for driving the pixels, a second power voltage generator connected to the pixels through the first power line and generating a second power voltage for sensing the pixels, and a timing controller selectively controlling operations of the first power voltage generator and the second power voltage generator according to a driving method of the pixel unit, and a method driving the same.Type: ApplicationFiled: April 21, 2023Publication date: February 8, 2024Inventors: Sang Hyun LEE, Dae Sik LEE, Keun Oh KANG, Si Duk SUNG, Song Yi HAN
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Patent number: 11804599Abstract: A crystalline precursor compound for manufacturing a lithium transition metal based oxide powder usable as an active positive electrode material in lithium-ion batteries, the precursor having a general formula Li1?a((Niz(Ni0.5Mn0.5)yCox)1?kAk)1+aO2, wherein A comprises at least one element of the group consisting of: Mg, Al, Ca, Si, B, W, Zr, Ti, Nb, Ba, and Sr, with 0.05?x?0.40, 0.25?z?0.85, x+y+z=1, 0?k?0.10, and 0?a?0.053, wherein said crystalline precursor powder has a crystalline size L, expressed in nm, with 15?L?36.Type: GrantFiled: May 18, 2022Date of Patent: October 31, 2023Assignees: Umicore, Umicore Korea Ltd.Inventors: Areum Park, Jihye Kim, Song-Yi Han, Jens Martin Paulsen, Kyung-Tae Lee, Randy De Palma
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Publication number: 20230281375Abstract: A semiconductor design automation system comprises a simulator configured to generate simulation data, a recovery module configured to correct a sampling error of the simulation data to generate recovery simulation data, a hardware data module configured to generate real data, a preprocessing module configured to preprocess the real data to generate preprocessed real data, a database configured to store the recovery simulation data and the preprocessed real data, a first graphic user interface including an automatic simulation generator configured to generate a machine learning model of the recovery simulation data and the preprocessed real data and generate predicted real data therefrom, and a second graphic user interface including a visualization unit configured to generate a visualized virtualization process result from the machine learning model.Type: ApplicationFiled: May 12, 2023Publication date: September 7, 2023Inventors: Song-Yi Han, Jae Min Kim, Jae Ho Kim, Ji-Seong Doh, Kang-Hyun Baek, Young Kyou Shin, Seong Hun Jang, Young Jun Cho, Yun Ji Choi
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Patent number: 11705587Abstract: A terminal case configured to effectively estimate the life or degradation of a secondary battery as the secondary battery degrades includes a housing that can be coupled to the secondary battery, a plurality of normal mode terminals disposed on a first surface of the housing and a plurality of measurement mode terminals disposed on a second surface of the housing. The housing is configured to be coupled to the secondary battery with either the first surface or the second surface facing the secondary battery, such as by rotation of the housing about an axis passing through a center of two surfaces of the housing that are parallel to one another and perpendicular to both the first and second surfaces of the housing.Type: GrantFiled: February 13, 2019Date of Patent: July 18, 2023Inventor: Song-Yi Han
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Publication number: 20230223510Abstract: The present invention relates to a secondary battery comprising an electrode assembly. The electrode assembly comprises: a first unit electrode in which a plurality of first electrodes entirely made of a first electrode mixture having a solid shape are connected to each other; a second unit electrode in which a plurality of second electrodes entirely made of a second electrode mixture having a solid shape are connected to each other; a separator interposed between the first unit electrode and the second unit electrode; and an electrode tab comprising a plurality of first electrode tab provided on the first unit electrode and a plurality of second electrode tab provided on the second unit electrode.Type: ApplicationFiled: March 23, 2023Publication date: July 13, 2023Applicant: LG ENERGY SOLUTION, LTD.Inventors: Dae Soo KIM, Young Deok KIM, Song Yi HAN
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Patent number: 11687696Abstract: A semiconductor design automation system comprises a simulator configured to generate simulation data, a recovery module configured to correct a sampling error of the simulation data to generate recovery simulation data, a hardware data module configured to generate real data, a preprocessing module configured to preprocess the real data to generate preprocessed real data, a database configured to store the recovery simulation data and the preprocessed real data, a first graphic user interface including an automatic simulation generator configured to generate a machine learning model of the recovery simulation data and the preprocessed real data and generate predicted real data therefrom, and a second graphic user interface including a visualization unit configured to generate a visualized virtualization process result from the machine learning model.Type: GrantFiled: August 6, 2021Date of Patent: June 27, 2023Inventors: Song-Yi Han, Jae Min Kim, Jae Ho Kim, Ji-Seong Doh, Kang-Hyun Baek, Young Kyou Shin, Seong Hun Jang, Young Jun Cho, Yun Ji Choi
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Publication number: 20230169934Abstract: A display device includes a display panel including a plurality of pixels which are connected to a plurality of gate lines and a plurality of data lines and display a plurality of consecutive frames of images, a data driver driving the data lines, a gate driver driving the gate lines, a clock generator outputting a gate clock signal, which drives the gate driver and swings between a gate-on voltage and a gate-off voltage, and a signal controller outputting a gate pulse signal which drives the clock generator and a data control signal which controls the data driver. The clock generator includes a voltage maintainer maintaining the gate clock signal at a reference voltage that has a fixed value between the gate-on voltage and the gate-off voltage for a predetermined time.Type: ApplicationFiled: January 24, 2023Publication date: June 1, 2023Inventors: Dong Beom CHO, Hee Bum PARK, Dae Sik LEE, Song Yi HAN
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Patent number: 11641011Abstract: An electrode assembly comprising a first unit electrode in which a plurality of first electrodes entirely made of a first electrode mixture having a solid shape are connected to each other; a second unit electrode in which a plurality of second electrodes entirely made of a second electrode mixture having a solid shape are connected to each other; a separator interposed between the first unit electrode and the second unit electrode; and an electrode tab comprising a plurality of first electrode tab provided on the first unit electrode and a plurality of second electrode tab provided on the second unit electrode.Type: GrantFiled: June 27, 2019Date of Patent: May 2, 2023Assignee: LG ENERGY SOLUTION, LTD.Inventors: Dae Soo Kim, Young Deok Kim, Song Yi Han
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Patent number: 11594196Abstract: A display device includes a display panel including a plurality of pixels which are connected to a plurality of gate lines and a plurality of data lines and display a plurality of consecutive frames of images, a data driver driving the data lines, a gate driver driving the gate lines, a clock generator outputting a gate clock signal, which drives the gate driver and swings between a gate-on voltage and a gate-off voltage, and a signal controller outputting a gate pulse signal which drives the clock generator and a data control signal which controls the data driver. The clock generator includes a voltage maintainer maintaining the gate clock signal at a reference voltage that has a fixed value between the gate-on voltage and the gate-off voltage for a predetermined time.Type: GrantFiled: December 23, 2020Date of Patent: February 28, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Dong Beom Cho, Hee Bum Park, Dae Sik Lee, Song Yi Han
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Publication number: 20230054397Abstract: A crystalline precursor compound for manufacturing a lithium transition metal based oxide powder usable as an active positive electrode material in lithium-ion batteries, the precursor having a general formula Li1-a((Niz(Ni0.5Mn0.5)yCox)1-kAk)1+aO2, wherein A comprises at least one element of the group consisting of: Mg, Al, Ca, Si, B, W, Zr, Ti, Nb, Ba, and Sr, with 0.05?x?0.40, 0.25?z?0.85, x+y+z=1, 0?k?0.10, and 0?a?0.053, wherein said crystalline precursor powder has a crystalline size L, expressed in nm, with 15?L?36.Type: ApplicationFiled: May 18, 2022Publication date: February 23, 2023Inventors: Areum PARK, JiHye KIM, Song-Yi HAN, Jens Martin PAULSEN, Kyung-Tae LEE, Randy De Palma
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Publication number: 20230044623Abstract: Provided is a positive electrode for a secondary battery, which has a multi-layer structure including a first positive electrode active material layer and a second positive electrode active material layer, wherein the first positive electrode active material layer includes a first lithium composite transition metal oxide containing nickel, cobalt, and manganese, the second positive electrode active material layer includes a second lithium composite transition metal oxide containing nickel, cobalt, and manganese, the first lithium composite transition metal oxide and the second lithium composite transition metal oxide have mutually different nickel contents, wherein the positive electrode active material layer including a lithium composite transition metal oxide having a relatively high nickel content includes an electrolyte additive, and the positive electrode active material layer including a lithium composite transition metal oxide having a relatively low nickel content does not include an electrolyte additType: ApplicationFiled: May 7, 2021Publication date: February 9, 2023Applicant: LG Energy Solution, Ltd.Inventors: Ji Hoon Ryu, Song Yi Han, Ki Won Sung