Assignee
UMENO SHIGERU
JP·3 granted patents·5 citations·filing 2008–2009
Top patents by PatentIndex Score
3 records- 0177US8771415B2Method of manufacturing silicon single crystal, silicon single crystal ingot, and silicon waferUMENO SHIGERU·Filed 2009·Granted Jul 8, 2014·4 cites·11 claims
- 0261US8105436B2Single crystal silicon wafer for insulated gate bipolar transistors and process for producing the sameUMENO SHIGERU·Filed 2008·Granted Jan 31, 2012·1 cites·4 claims
- 0349US8460463B2Silicon wafer and method for producing the sameUMENO SHIGERU·Filed 2009·Granted Jun 11, 2013·0 cites·5 claims
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