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US Patent 8164408 Planar transformer

Patent 8164408 was granted and assigned to Samsung on April, 2012 by the United States Patent and Trademark Office.

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Patent abstractTimelineTable: Further ResourcesReferences
Is a
Patent
Patent
1

Patent attributes

Current Assignee
Samsung
Samsung
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
81644081
Patent Inventor Names
Chong Eun Kim1
Date of Patent
April 24, 2012
1
Patent Application Number
126401331
Date Filed
December 17, 2009
1
Patent Citations Received
‌
US Patent 11869855 Method of manufacturing transformers with laminate windings and build-up films
2
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US Patent 12094644 Electronic structure having a transformer
3
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US Patent 11948724 Method for making a multi-thickness electro-magnetic device
4
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US Patent 11875926 Inductor having high current coil with low direct current resistance
5
Patent Primary Examiner
‌
Anh Mai
1
Patent abstract

There is provided a planar transformer having a dual-bobbin structure. The planar transformer includes a core unit including a pair of cores that are electromagnetically coupled to each other, and a bobbin unit including an inner bobbin part and a board part. The inner bobbin part includes a bobbin body having a predetermined volume and having a through hole into which the core is inserted, and a first winding wound around an outer circumferential surface of the bobbin body, and the board part includes at least one board including a board body having a predetermined surface area and having a through hole into which the inner bobbin part and the core are inserted, and a second winding formed on at least one surface of the board body and causing electromagnetic action with the first winding.

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