Inventor · disambiguated record
Kazuyoshi Umezawa
Also filed as: UMEZAWA KAZUYOSHI
5 granted patents·37 citations·filing 1993–2021
72Inventor score
Top patents by PatentIndex Score
5 records- 0165US11275124B2Abnormality cause identifying method, abnormality cause identifying device, power converter and power conversion systemFUJI ELECTRIC CO LTD·Filed 2019·Granted Mar 15, 2022·2 cites·19 claims
- 0265US5381328APWM inverter control system and methodFUJI ELECTRIC CO LTD·Filed 1993·Granted Jan 10, 1995·34 cites·22 claims
- 0363US8743571B2Distributed power supply system with harmonic signal generation for stabilizationYAMADA TOSHIYA·Filed 2011·Granted Jun 3, 2014·1 cites·4 claims
- 0449US11539237B2Uninterruptible power supply system and uninterruptible power supplyFUJI ELECTRIC CO LTD·Filed 2021·Granted Dec 27, 2022·0 cites·9 claims
- 0549US10790698B2Uninterruptible power supply system and uninterruptible power supplyFUJI ELECTRIC CO LTD·Filed 2019·Granted Sep 29, 2020·0 cites·19 claims
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