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Pat. 11522380 United States, Int. Cl.22 H02J 7/00, H01M 10/44, H01M 10/48, H02J 3/32, H02J 7/32, H02J 7/35, H02M 3/158. Power storage apparatus with voltage stepping-up/down bi-directional converter : Appl. N 16/823546 : Filed 19.03.2020 : Pub. 06.12.2022 : / Shuichi Tagawa ; Assignee Murata Manufacturing Co Ltd ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US11522380/en?oq=US11522380.html (дата обращения: ДД.ММ.ГГГГ).