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Pat. 10510477 United States, Int. Cl.22 H01F 27/28, H02M 7/217. Planar transformer with multilayer circuit board : Appl. N 15/374239 : Filed 09.12.2016 : Pub. 17.12.2019 : / Bonggeun Chung, Gwanbon Koo, Taesung Kim, Yoonjoo You ; Assignee Semiconductor Components Industries LLC ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10510477/en?oq=US10510477.html (дата обращения: ДД.ММ.ГГГГ).