Assignee
SHIBATA TSUTOMU
JP·5 granted patents·1 pending application·4 citations·filing 2006–2011
Top patents by PatentIndex Score
6 records- 0160US8217563B2Spark plug for internal combustion engine and method of manufacturing the sameSHIBATA TSUTOMU·Filed 2009·Granted Jul 10, 2012·2 cites·14 claims
- 0256US8092269B2Method of manufacturing spark plugSHIBATA TSUTOMU·Filed 2009·Granted Jan 10, 2012·2 cites·8 claims
- 0348US8866370B2Spark plugSHIBATA TSUTOMU·Filed 2011·Granted Oct 21, 2014·0 cites·10 claims
- 0448US8492962B2Spark plug for internal combustion engineSHIBATA TSUTOMU·Filed 2009·Granted Jul 23, 2013·0 cites·11 claims
- 0543US2007127453A1Server apparatus and telephone terminalSHIBATA TSUTOMU·Filed 2006·Application pending·0 cites
- 0640US8283846B2Spark plug containing specific ratio contentSHIBATA TSUTOMU·Filed 2010·Granted Oct 9, 2012·0 cites·9 claims
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