Assignee
UMEZAWA AKIRA
JP·3 granted patents·11 citations·filing 2009–2011
Top patents by PatentIndex Score
3 records- 0178US8432744B2Semiconductor storage device with a well control circuitUMEZAWA AKIRA·Filed 2011·Granted Apr 30, 2013·8 cites·20 claims
- 0256US8094496B2Nonvolatile semiconductor memory device and control method thereofUMEZAWA AKIRA·Filed 2009·Granted Jan 10, 2012·1 cites·23 claims
- 0346US8169253B2Power circuit including step-up circuit and stabilizing method thereofUMEZAWA AKIRA·Filed 2009·Granted May 1, 2012·2 cites·20 claims
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