Patents by Inventor Kwang-Ho Yoon
Kwang-Ho Yoon 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: 12002962Abstract: Disclosed is a method for manufacturing a dry electrode. The method allows determination of the micro-fibrilization degree of a binder resin from the crystallinity of the binder resin. Based on this, the processing conditions of mixed powder for electrode or an electrode film may be controlled. In this manner, it is possible to check and control the processing conditions easily and efficiently. In addition, the method for manufacturing a dry electrode includes a kneading step using a kneader under a low speed and high temperature and pulverization step. Therefore, there is no problem of blocking of a flow path caused by aggregation of the ingredients, which is favorable to mass production.Type: GrantFiled: August 5, 2022Date of Patent: June 4, 2024Assignee: LG Energy Solution, Ltd.Inventors: Seong-Wook Kang, Jae-Sung Han, Dong-Mok Shin, Dong-Oh Shin, Kyung-Hwan Yoon, Kwang-Ho Yoo
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Publication number: 20240165589Abstract: Disclosed herein is a catalyst for an upgrading reaction of biomass pyrolysis oil, a method for preparing the same, and a method for upgrading biomass pyrolysis oil using the same. The catalyst is a composite inorganic oxide, and the composite inorganic oxide includes lanthanum, nickel, titanium, and cerium. When a metal catalyst supported on carbon is used as a catalyst for a first step reaction, by using the catalyst as a catalyst for a second step reaction, the efficiency of the upgrading reaction of bio-oil is increased and a continuous reaction is possible without clogging of a continuous reactor.Type: ApplicationFiled: December 27, 2022Publication date: May 23, 2024Inventors: Chunjae YOO, Jeong-Myeong HA, Dong Jin SUH, Jae Wook CHOI, Young Hyun YOON, Kyeongsu KIM, Chang Soo KIM, Kwang Ho KIM, Thi Lien DO, Jong Hyun LEE, Jin A EUN
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Patent number: 11944958Abstract: Disclosed herein are a catalyst for hydrocracking reaction of high molecular weight components in bio-oil, a method for preparing the same and a method for bio-oil upgrading using the same. The catalyst includes a zeolite carrier; and at least one metal selected from the group consisting of nickel (Ni), ruthenium (Ru) and cerium (Ce) supported on the carrier. The catalyst promotes the hydrocracking of high molecular weight compounds contained in the bio-oil, but also inhibits the polymerization reaction of the decomposed product, thereby more effectively enhancing the hydrocracking reaction of the bio-oil.Type: GrantFiled: July 18, 2022Date of Patent: April 2, 2024Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Chunjae Yoo, Jeong-Myeong Ha, Dong Jin Suh, Jae Wook Choi, Young Hyun Yoon, Kyeongsu Kim, Chang Soo Kim, Kwang Ho Kim, Thi Lien Do
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Publication number: 20230421063Abstract: A buck-boost converter includes a first switch connected between an input terminal that receives an input voltage and a first terminal of an inductor, a second switch connected between the first terminal of the inductor and an output terminal that outputs an output voltage, a third switch connected between a second terminal of the inductor and a ground terminal, and a fourth switch connected between the second terminal of the inductor and an inverting input terminal that receives an inverted input voltage obtained by inverting the input voltage.Type: ApplicationFiled: June 28, 2023Publication date: December 28, 2023Applicants: SILICON MITUS, INC., Hangzhou Silicon-Magic Semiconductor Technology Co., Ltd.Inventors: Kwang Ho Yoon, Su Hun Lim, Jin Su Jung
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Patent number: 10084378Abstract: A single-inductor multi-output converter that includes a charge pump unit, a current supply unit, a first output unit, and a second output unit. The charge pump unit may be positioned between a first node and a second node, and may store electric charges flowing into the first node and the second node through a first capacitor, or may supply electric charges to the second node. In addition, the current supply unit may: include an inductor positioned between an input node and the first node; build up current in the inductor in the first time period; and transfer the current of the inductor to the charge pump unit in the second time period.Type: GrantFiled: June 30, 2017Date of Patent: September 25, 2018Assignee: Silicon Mitus, Inc.Inventors: Kwang Ho Yoon, JinSoo Jung
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Publication number: 20180006557Abstract: A single-inductor multi-output converter that includes a charge pump unit, a current supply unit, a first output unit, and a second output unit. The charge pump unit may be positioned between a first node and a second node, and may store electric charges flowing into the first node and the second node through a first capacitor, or may supply electric charges to the second node. In addition, the current supply unit may: include an inductor positioned between an input node and the first node; build up current in the inductor in the first time period; and transfer the current of the inductor to the charge pump unit in the second time period.Type: ApplicationFiled: June 30, 2017Publication date: January 4, 2018Applicant: Silicon Mitus, Inc.Inventors: Kwang Ho YOON, JinSoo JUNG
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Publication number: 20180006574Abstract: A converter that may include: a power stage configured to include at least one inductor and a plurality of switching devices, and configured to be able to operate in a buck mode, a boost mode, or a buck-boost mode according to the control; and a controller configured to apply, to the power stage, two or more operation modes selected from the buck mode, the boost mode, or the buck-boost mode, and configured to periodically change the operation mode of the power stage.Type: ApplicationFiled: June 30, 2017Publication date: January 4, 2018Applicant: Silicon Mitus, Inc.Inventors: Kwang Ho YOON, WooJae CHOI
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Patent number: 8083460Abstract: The present invention discloses a cable-driven manipulator comprising an operating unit having a drive motor, and a pulley rotated by the drive motor. An upper arm is coupled, through a joint, to one side of the operating unit. A forearm coupled, through a joint, to the other side of the upper arm by the cable. A gripper of an end effector operably coupled to the forearm, a cable compensation device is installed between the upper arm and the forearm so as to maintain constant the length of the cable that transmits the power of the operating unit to the end effector during the pivoting of the forearm. It is thus possible to prevent the variation of tensile force due to the variation of the length of the cable for operating the end effector during the pivoting of the forearm or the unintended malfunction of the end effector.Type: GrantFiled: December 5, 2008Date of Patent: December 27, 2011Assignee: Korea Atomic Energy Research InstituteInventors: Jong Kwang Lee, Chang Hwan Choi, Kwang Ho Yoon, Hyo Jik Lee, Byung Suk Park, Ji Sup Yoon
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Patent number: 7663681Abstract: In a driving method of a complementary metal oxide semiconductor active pixel, timing of a transmission control signal and a reset control signal generated in a read-out section is performed in advance in a reset section. A potential wall between a photodiode area and a transmission transistor having a size corresponding to one generated in the read-out section is generated in the reset section in advance and the photodiode area is filled with charges. A dead region is reduced in the read-out section. In the reset section, the transmission transistor connecting a collection node to accumulate the signal charges generated from the photodiode and the floating diffusive node is turned on at least one time, and a difference between an initial voltage of the collection node and a voltage of the reset level of the floating diffusive node is reduced.Type: GrantFiled: February 7, 2004Date of Patent: February 16, 2010Assignee: Siliconfile Technologies Inc.Inventors: Do Young Lee, Kwang Ho Yoon
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Publication number: 20090287755Abstract: Disclosed is a sequence similarity measuring apparatus and a method of controlling the same. The sequence similarity measuring apparatus using dynamic programming includes: a matrix generating unit for generating a matrix based on the dynamic programming by using two sequences; a normalization unit for calculating a similarity reference value by inputting an element value of a last row/column of the matrix generated by the matrix generating unit into a normalization formula for a given sequence length; and a similarity measuring unit for measuring predefined sequence similarity between the two sequences, based on the similarity reference value calculated by the normalization unit. This makes it possible to easily and correctly achieve similarity comparison between multiple sequences, and thus this technology is expected to be widely utilized in biology/programming application fields.Type: ApplicationFiled: November 20, 2008Publication date: November 19, 2009Inventors: Jae Kwang Kim, Jee Hyong Lee, Tae Bok Yoon, Dong Moon Kim, Jung Hoon Kim, Dong Hoon Lee, Kun Su Kim, Je Hee Jung, Seung Hoo Lee, Kwang Ho Yoon
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Publication number: 20090148263Abstract: The present invention discloses a cable-driven manipulator comprising an operating unit having a drive motor, and a pulley rotated by the drive motor. An upper arm is coupled, through a joint, to one side of the operating unit. A forearm coupled, through a joint, to the other side of the upper arm by the cable. A gripper of an end effector operably coupled to the forearm, a cable compensation device is installed between the upper arm and the forearm so as to maintain constant the length of the cable that transmits the power of the operating unit to the end effector during the pivoting of the forearm. It is thus possible to prevent the variation of tensile force due to the variation of the length of the cable for operating the end effector during the pivoting of the forearm or the unintended malfunction of the end effector.Type: ApplicationFiled: December 5, 2008Publication date: June 11, 2009Applicant: Korea Atomic Energy Research InstituteInventors: Jong Kwang Lee, Chang Hwan Choi, Kwang Ho Yoon, Hyo Jik Lee, Byung Suk Park, Ji Sup Yoon
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Patent number: 7498555Abstract: An image sensor includes first and second pixel circuits and an output node coupled to the first and second pixel circuits. A bias circuit provides a higher bias current at the output node during a sub-sampling mode of operation of the image sensor for improved image quality.Type: GrantFiled: July 6, 2006Date of Patent: March 3, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Kyoung-Min Koh, Kwang-Ho Yoon
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Patent number: 7394491Abstract: An image sensor of the present invention prevents the phenomenon that surrounding background of a bright object reflecting or emitting strong light like the sun is presented at dark and improves image quality of the image sensor by controlling the brightness of the bright object. The image sensor using correlated double sampling technology which outputs data of an object by using difference between a reset voltage signal and a data voltage signal of a unit pixel includes a plurality of unit pixels arranged in a matrix, each outputting the reset voltage signal and the data voltage signal; a plurality of clamping means, each coupled to each unit pixels for clamping up the reset signal to a predetermined voltage level; and a voltage controlling block for adjusting voltage level supplied to a gate of each of clamping means.Type: GrantFiled: December 30, 2003Date of Patent: July 1, 2008Assignee: MagnaChip Semiconductor, Ltd.Inventors: Chang-Min Bae, Kwang-Ho Yoon
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Publication number: 20070018072Abstract: An image sensor includes first and second pixel circuits and an output node coupled to the first and second pixel circuits. A bias circuit provides a higher bias current at the output node during a sub-sampling mode of operation of the image sensor for improved image quality.Type: ApplicationFiled: July 6, 2006Publication date: January 25, 2007Inventors: Kyoung-Min Koh, Kwang-Ho Yoon
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Patent number: 7065869Abstract: Disclosed is a design method for plating of a printed circuit board (PCB) strip, in which a main plating line is optionally formed on a component side, a solder side, or an inner layer of the PCB strip by modifying a sub-plating line of the PCB strip used to manufacture a semiconductor chip package, and a method of manufacturing the semiconductor chip package using the same. Therefore, an excellent semiconductor chip package is manufactured without a short when the PCB strip is cut using a sawing machine because misalignment of main plating lines of the solder side and the component side of the PCB strip is avoided, and an interval between PCB units is reduced to desirably increase the number of PCB units in the PCB strip without the short when the PCB strip is cut.Type: GrantFiled: February 7, 2003Date of Patent: June 27, 2006Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Tae-Hyeog Kang, Sang-Kab Park, Kwang-Ho Yoon, Bong-Kyu Choi
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Publication number: 20040155973Abstract: An image sensor of the present invention prevents the phenomenon that surrounding background of a bright object reflecting or emitting strong light like the sun is presented at dark and improves image quality of the image sensor by controlling the brightness of the bright object. The image sensor using correlated double sampling technology which outputs data of an object by using difference between a reset voltage signal and a data voltage signal of a unit pixel includes a plurality of unit pixels arranged in a matrix, each outputting the reset voltage signal and the data voltage signal; a plurality of clamping means, each coupled to each unit pixels for clamping up the reset signal to a predetermined voltage level; and a voltage controlling block for adjusting voltage level supplied to a gate of each of clamping means.Type: ApplicationFiled: December 30, 2003Publication date: August 12, 2004Inventors: Chang-Min Bea, Kwang-Ho Yoon
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Patent number: 6650310Abstract: A hybrid-level charge recycling method for use in implementing low power LCD column drivers. By having external capacitors of the column driver drive the same column lines of the LCD, the need for a polarity reversing circuit is eliminated, and the time necessary for charge recycling, as well as the amount of power consumed, is reduced. As a result, the multi-level recycling operation in column driving IC is made more practical.Type: GrantFiled: August 28, 2001Date of Patent: November 18, 2003Assignee: Hynix Semiconductor Inc.Inventor: Kwang-Ho Yoon
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Publication number: 20030150110Abstract: Disclosed is a design method for plating of a printed circuit board (PCB) strip, in which a main plating line is optionally formed on a component side, a solder side, or an inner layer of the PCB strip by modifying a sub-plating line of the PCB strip used to manufacture a semiconductor chip package, and a method of manufacturing the semiconductor chip package using the same. Therefore, an excellent semiconductor chip package is manufactured without a short when the PCB strip is cut using a sawing machine because misalignment of main plating lines of the solder side and the component side of the PCB strip is avoided, and an interval between PCB units is reduced to desirably increase the number of PCB units in the PCB strip without the short when the PCB strip is cut.Type: ApplicationFiled: February 7, 2003Publication date: August 14, 2003Inventors: Tae-Hyeong Kang, Sang-Kab Park, Kwang-Ho Yoon, Bong-Kyu Choi
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Publication number: 20020063668Abstract: A hybrid-level charge recycling method for use in implementing low power LCD column drivers. By having external capacitors of the column driver drive the same column lines of the LCD, the need for a polarity reversing circuit is eliminated, and the time necessary for charge recycling, as well as the amount of power consumed, is reduced. As a result, the multi-level recycling operation in column driving IC is made more practical.Type: ApplicationFiled: August 28, 2001Publication date: May 30, 2002Inventor: Kwang-Ho Yoon