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Pat. 10574163 United States, Int. Cl.22 H02P 21/14, H02M 1/08, H02M 5/458, H02M 7/487, H02P 21/00, H02P 21/06, H02P 21/22, H02P 27/14. Three-phase neutral-point-clamped power conversion device : Appl. N 15/516985 : Filed 07.10.2015 : Pub. 25.02.2020 : / Shizunori Hamada, Kenji Kobori ; Assignee Meidensha Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10574163/en?oq=US10574163.html (дата обращения: ДД.ММ.ГГГГ).