Patents by Inventor Martin Kuo
Martin Kuo 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: 20250140463Abstract: A flat multi-phase inductor is provided. The flat multi-phase inductor includes a main iron core, a plurality of first coils, a plurality of second coils and a plurality of secondary iron core. The main iron core has a plurality of accommodating spaces, the plurality of first coils are respectively disposed in the plurality of accommodating spaces. The plurality of second coils are respectively disposed in the spaces defined by the plurality of first coils, and the plurality of secondary iron core are respectively disposed in the spaces defined by the plurality of second coils. The second coil includes a series part, and the series part connects two adjacent second coils to each other in a regular manner. The secondary iron core, the second coil and the first coil are correspondingly disposed in a plurality of accommodating spaces of the main iron core to form an inductor element.Type: ApplicationFiled: October 26, 2023Publication date: May 1, 2025Applicant: ITG ELECTRONICS, INC.Inventors: Martin KUO, Nanhai ZHU
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Publication number: 20250029779Abstract: A coupled inductor with adjustable leakage inductance is provided. The coupled inductor includes a first magnetic element, a second magnetic element, and two coil assemblies. The first magnetic element includes a first magnetic plate and at least two first magnetic core columns, which are disposed on the first magnetic plate and spaced apart along an arrangement direction. The second magnetic element is coupled to the first magnetic element. The second magnetic element includes a second magnetic plate and at least two second magnetic core columns, which are disposed on the second magnetic plate and spaced apart along the arrangement direction. The second magnetic core columns are respectively coupled to the first magnetic core columns to form magnetic core column bodies. The coil assemblies have a same quantity as that of the magnetic core column bodies, and the coil assemblies are respectively sleeved around the magnetic core columns.Type: ApplicationFiled: July 19, 2023Publication date: January 23, 2025Inventors: MARTIN KUO, NANHAI ZHU
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Publication number: 20250029766Abstract: An integrated coupling inductor includes a magnetic core frame, a magnetic core, two magnetic core columns, and two coil assemblies. The magnetic core is disposed on the magnetic core frame. In a first direction, a first space and a second space are defined by the magnetic core and the two inner wall surfaces of the magnetic core frame. In a second direction, a third space and a fourth space is defined by the magnetic core and two inner wall surfaces of the magnetic core frame. The two magnetic core columns are respectively disposed in the first space and the second space. One end of each of the magnetic core columns is connected to the magnetic core, and another end extends toward the inner wall surface of the magnetic core frame. The two coil assemblies are respectively sleeved around the two magnetic core columns.Type: ApplicationFiled: July 19, 2023Publication date: January 23, 2025Inventors: MARTIN KUO, NANHAI ZHU
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Patent number: 12159740Abstract: An inductor structure having a vertical coil with symmetrical pins is provided. The inductor structure includes a first magnetic core body, a second magnetic core body, and a coil body. An accommodation space is defined between the second magnetic core body and the first magnetic core body. The coil body is located in the accommodation space. The coil body includes a main body part, a first pin part, and a second pin part that are combined into an integrated and homogeneous single component. One end and another end of main body part are misaligned from each other, and the first pin part and the second pin part are symmetrically disposed facing each other.Type: GrantFiled: March 24, 2021Date of Patent: December 3, 2024Assignee: ITG Electronics, Inc.Inventors: Martin Kuo, Nanhai Zhu
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Patent number: 12094634Abstract: Provided is a coupled magnetic element having high voltage resistance and high power density, which includes: a first magnetic core, a first coil, a second coil, and at least one second magnetic core. There is a plurality of gaps between the first magnetic core and the at least one second magnetic core, the first coil is located between the first magnetic core and the second coil, and the second coil is located between the first coil and the at least one second magnetic core. The coupled magnetic element having high voltage resistance and high power density provided herein can achieve a coupled magnetic effect with high voltage resistance and high power density by means of the foregoing technical solution.Type: GrantFiled: December 22, 2020Date of Patent: September 17, 2024Assignee: ITG Electronics, Inc.Inventors: Martin Kuo, Nanhai Zhu
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Patent number: 12057257Abstract: A multi-layer coil structure and an inductor are provided. The multi-layer coil structure includes a first coil body and a second coil body. The first coil body includes a first extension portion and a second extension portion extending in a first direction, and at least one third extension portion extending in a second direction. The second coil body includes a fourth extension portion, a fifth extension portion, and at least one sixth extension portion, the fourth extension portion and the fifth extension portion extend in the first direction, and the at least one sixth extension portion extend in the second direction. When the first coil body is detachably assembled with the second coil body, at least one first pin is formed by the first extension portion and the fourth extension portion, and at least one second pin is formed by the second extension portion and the fifth extension portion.Type: GrantFiled: May 17, 2021Date of Patent: August 6, 2024Assignee: ITG ELECTRONICS, INC.Inventors: Martin Kuo, Nanhai Zhu
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Patent number: 11800650Abstract: A pin-aligned magnetic device is provided, which includes a first magnetic core body, a second magnetic core body, and a plurality of conductors. The first magnetic core body is internally disposed with a magnetic element, and the magnetic element is joined to the plurality of conductors. The second magnetic core body covers the plurality of conductors on the first magnetic core body, so that the plurality of conductors is mounted inside the magnetic device and pins thereof are exposed from two lateral sides of the magnetic device, to form a plurality of pins. The foregoing design makes room at the bottom of the magnetic device, thus facilitating space saving and utilization on a PCB board. Moreover, each pin can be in good electrical contact with the board, effectively enhancing product yield on a production line.Type: GrantFiled: March 31, 2021Date of Patent: October 24, 2023Assignee: ITG ELECTRONICS, INC.Inventors: Martin Kuo, Nanhai Zhu
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Publication number: 20230178287Abstract: A multiphase inductor structure is provided. The multiphase inductor structure includes a main magnetic core body, a plurality of secondary magnetic core bodies, a plurality of main coils, and a plurality of secondary coils. The main magnetic core body has a plurality of recesses. The secondary magnetic core body, the main coil, and the secondary coil are correspondingly disposed in the recess. The main coil is arranged between the main magnetic core body and a corresponding one of the secondary coils. The secondary coil is arranged between a corresponding one of the main coils and a corresponding one of the secondary magnetic core bodies. The main magnetic core body is coupled to the secondary magnetic core body, the main coil, and the secondary coil in each of the recesses to from an inductor, and the plurality of inductors are not coupled to each other.Type: ApplicationFiled: December 3, 2021Publication date: June 8, 2023Inventors: MARTIN KUO, NANHAI ZHU
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Publication number: 20220367107Abstract: A multi-layer coil structure and an inductor are provided. The multi-layer coil structure includes a first coil body and a second coil body. The first coil body includes a first extension portion and a second extension portion extending in a first direction, and at least one third extension portion extending in a second direction. The second coil body includes a fourth extension portion, a fifth extension portion, and at least one sixth extension portion, the fourth extension portion and the fifth extension portion extend in the first direction, and the at least one sixth extension portion extend in the second direction. When the first coil body is detachably assembled with the second coil body, at least one first pin is formed by the first extension portion and the fourth extension portion, and at least one second pin is formed by the second extension portion and the fifth extension portion.Type: ApplicationFiled: May 17, 2021Publication date: November 17, 2022Inventors: MARTIN KUO, NANHAI ZHU
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Publication number: 20220322539Abstract: A pin-aligned magnetic device is provided, which includes a first magnetic core body, a second magnetic core body, and a plurality of conductors. The first magnetic core body is internally disposed with a magnetic element, and the magnetic element is joined to the plurality of conductors. The second magnetic core body covers the plurality of conductors on the first magnetic core body, so that the plurality of conductors is mounted inside the magnetic device and pins thereof are exposed from two lateral sides of the magnetic device, to form a plurality of pins. The foregoing design makes room at the bottom of the magnetic device, thus facilitating space saving and utilization on a PCB board. Moreover, each pin can be in good electrical contact with the board, effectively enhancing product yield on a production line.Type: ApplicationFiled: March 31, 2021Publication date: October 6, 2022Inventors: MARTIN KUO, NANHAI ZHU
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Publication number: 20220310306Abstract: An inductor structure having a vertical coil with symmetrical pins is provided. The inductor structure includes a first magnetic core body, a second magnetic core body, and a coil body. An accommodation space is defined between the second magnetic core body and the first magnetic core body. The coil body is located in the accommodation space. The coil body includes a main body part, a first pin part, and a second pin part that are combined into an integrated and homogeneous single component. One end and another end of main body part are misaligned from each other, and the first pin part and the second pin part are symmetrically disposed facing each other.Type: ApplicationFiled: March 24, 2021Publication date: September 29, 2022Inventors: MARTIN KUO, NANHAI ZHU
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Publication number: 20220199312Abstract: Provided is a coupled magnetic element having high voltage resistance and high power density, which includes: a first magnetic core, a first coil, a second coil, and at least one second magnetic core. There is a plurality of gaps between the first magnetic core and the at least one second magnetic core, the first coil is located between the first magnetic core and the second coil, and the second coil is located between the first coil and the at least one second magnetic core. The coupled magnetic element having high voltage resistance and high power density provided herein can achieve a coupled magnetic effect with high voltage resistance and high power density by means of the foregoing technical solution.Type: ApplicationFiled: December 22, 2020Publication date: June 23, 2022Inventors: MARTIN KUO, NANHAI ZHU
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Publication number: 20190392312Abstract: A method for quantizing an image includes obtaining M batches of images; creating histograms by training based on each of the M batches of images; merging the histograms for each of the batches of images into a merged histogram; obtaining a minimum value from all minimum values of the M merged histograms and a maximum value from all maximum values of the M merged histograms; defining ranges of new bins of a new histogram according to the obtained minimum value, the obtained maximum value, and the number of the new bins; and estimating a distribution of each of the new bins by adding up frequencies falling into the ranges of the new bins to create the new histogram. The amount of the images in each of the M batches of images is N, and each of N and M is an integer and equal to or larger than two.Type: ApplicationFiled: June 10, 2019Publication date: December 26, 2019Inventors: Liu Liu, May-Chen Martin-Kuo, Yu-Ming Wei
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Publication number: 20190392311Abstract: A method for quantizing an image includes estimating a probability distribution by number of pixels versus gray level intensity from an image to create a histogram of the image; calculating a cumulative distribution function (CDF) of the histogram using the probability distribution; segmenting the gray level intensity into segments based on the cumulative distribution function; and quantizing the histogram based on the segments. Herein, the segments have identical number of pixel.Type: ApplicationFiled: June 10, 2019Publication date: December 26, 2019Inventors: Liu Liu, May-Chen Martin-Kuo
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Patent number: 10497504Abstract: The disclosure is related to an uncoupled multi-phase inductor that includes a primary iron core, multiple secondary iron cores, multiple metal strip coils and multiple sheet members. The primary iron core includes multiple grooves, in which multiple middle cylinders are correspondingly installed. The middle cylinders in the primary iron core, the secondary iron cores in the grooves, and the metal strip coils are assembled. The sheet members are also integrated in the assembly for forming one single device with two or more inductors. For reaching a requisite inductance, the inductors administrate air gaps among the primary iron core and the secondary iron cores by the sheet members. The multi-phase inductor shares the middle cylinder with the primary iron core as one device so as to increase power density since the space can be saved. The device integrated with the two or more inductors has an extreme low coupling coefficient.Type: GrantFiled: December 13, 2017Date of Patent: December 3, 2019Assignee: ITG ELECTRONICS, INC.Inventors: Martin Kuo, Nanhai Zhu
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Patent number: 10418166Abstract: A none-coupling dual inductor is provided, including a main iron core body having a middle bump, a plurality of subsidiary iron core bodies respectively disposed corresponding to two sides of the main iron core body, a plurality of metal sheet coils respectively disposed between the two sides of the main iron core body and the plurality of subsidiary iron core bodies, and a plurality of plate bodies respectively disposed between the main iron core body and the plurality of metal sheet coils and the plurality of subsidiary iron core bodies. The none-coupling dual inductor shares the middle bump of the main iron core body to be integrally formed so as to save space and increase power density. Even if the magnetic circuits of two inductors have a significant difference in the magnetic resistance, the none-coupling dual inductor of the present disclosure can still have a low coupling coefficient.Type: GrantFiled: June 16, 2017Date of Patent: September 17, 2019Assignee: ITG ELECTRONICS, INC.Inventors: Martin Kuo, Nanhai Zhu
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Publication number: 20190180910Abstract: The disclosure is related to an uncoupled multi-phase inductor that includes a primary iron core, multiple secondary iron cores, multiple metal strip coils and multiple sheet members. The primary iron core includes multiple grooves, in which multiple middle cylinders are correspondingly installed. The middle cylinders in the primary iron core, the secondary iron cores in the grooves, and the metal strip coils are assembled. The sheet members are also integrated in the assembly for forming one single device with two or more inductors. For reaching a requisite inductance, the inductors administrate air gaps among the primary iron core and the secondary iron cores by the sheet members. The multi-phase inductor shares the middle cylinder with the primary iron core as one device so as to increase power density since the space can be saved. The device integrated with the two or more inductors has an extreme low coupling coefficient.Type: ApplicationFiled: December 13, 2017Publication date: June 13, 2019Inventors: Martin Kuo, Nanhai Zhu
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Publication number: 20180366256Abstract: A none-coupling dual inductor is provided, including a main iron core body having a middle bump, a plurality of subsidiary iron core bodies respectively disposed corresponding to two sides of the main iron core body, a plurality of metal sheet coils respectively disposed between the two sides of the main iron core body and the plurality of subsidiary iron core bodies, and a plurality of plate bodies respectively disposed between the main iron core body and the plurality of metal sheet coils and the plurality of subsidiary iron core bodies. The none-coupling dual inductor shares the middle bump of the main iron core body to be integrally formed so as to save space and increase power density. Even if the magnetic circuits of two inductors have a significant difference in the magnetic resistance, the none-coupling dual inductor of the present disclosure can still have a low coupling coefficient.Type: ApplicationFiled: June 16, 2017Publication date: December 20, 2018Inventors: Martin Kuo, Nanhai Zhu
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Patent number: 9305696Abstract: A stacked inductor is provided with a conductive frame including a top surface, two side surfaces depending downward from the top surface, two spaced bottom surfaces each inward bending from a bottom of either side surface, an upper space defined by the top surface, the side surfaces, and the bottom surfaces, two vertical legs each depending downward from either bottom surface, two supports each inward bending from a bottom of either leg, and a lower space defined by the bottom surfaces, the legs, and the supports; an upper core including a bottom groove; an intermediate core; and a lower core including a top groove. The bottom groove is on the top surface, the intermediate core is in the upper space, the lower core is in the lower space and supported by the supports. The upper, intermediate, and lower cores are magnetically connected together.Type: GrantFiled: July 8, 2014Date of Patent: April 5, 2016Assignee: ALLIANCE MAGNETICS (H.K.) CO. LTD.Inventors: Martin Kuo, Andrew Chu
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Publication number: 20160012955Abstract: A stacked inductor is provided with a conductive frame including a top surface, two side surfaces depending downward from the top surface, two spaced bottom surfaces each inward bending from a bottom of either side surface, an upper space defined by the top surface, the side surfaces, and the bottom surfaces, two vertical legs each depending downward from either bottom surface, two supports each inward bending from a bottom of either leg, and a lower space defined by the bottom surfaces, the legs, and the supports; an upper core including a bottom groove; an intermediate core; and a lower core including a top groove. The bottom groove is on the top surface, the intermediate core is in the upper space, the lower core is in the lower space and supported by the supports. The upper, intermediate, and lower cores are magnetically connected together.Type: ApplicationFiled: July 8, 2014Publication date: January 14, 2016Inventors: Martin Kuo, Andrew Chu