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Inventor
MATSUOKA KAZUMASA
JP
2 patents
Patents
2 patents
US9444287B2
Sep 13, 2016
Power conversion device with ripple filtering
MATSUOKA KAZUMASA
2 citations
53
US9077201B2
Jul 7, 2015
Uninterruptible power supply device
MATSUOKA KAZUMASA
1 citations
42