Assignee
KUMAGAI KEIZO
JP·4 granted patents·1 pending application·12 citations·filing 2009–2021
Top patents by PatentIndex Score
5 records- 0185US11387821B2Pulse signal sending circuitKUMAGAI KEIZO·Filed 2021·Granted Jul 12, 2022·2 cites·13 claims
- 0271US9048729B2Step-up/down DC-DC converter and switching control circuitKUMAGAI KEIZO·Filed 2011·Granted Jun 2, 2015·4 cites·5 claims
- 0361US8193793B2DC-DC converterKUMAGAI KEIZO·Filed 2009·Granted Jun 5, 2012·6 cites·4 claims
- 0438US8957650B2Step-up/down DC-DC converter and switching control circuitKUMAGAI KEIZO·Filed 2011·Granted Feb 17, 2015·0 cites·6 claims
- 0536US2012105031A1Switching power-supply unitKUMAGAI KEIZO·Filed 2011·Application pending·0 cites
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