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Pat. 10263457 United States, Int. Cl.22 H02J 9/06, H02J 3/38, H02M 7/12, H02M 7/493. Uninterruptible power supply device and uninterruptible power supply system using the same : Appl. N 15/562074 : Filed 01.04.2015 : Pub. 16.04.2019 : / Kazuki Nishimura, Hiroshi Masunaga, Masahiro Kinoshita ; Assignee Toshiba Mitsubishi Electric Industrial Systems Corp ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10263457/en?oq=US10263457.html (дата обращения: ДД.ММ.ГГГГ).