Inventor · disambiguated record
Keiji Ishikawa
Also filed as: ISHIKAWA KEIJI
11 granted patents·3 pending applications·99 citations·filing 2000–2015
88Inventor score
Files withDENSO CORP6MATSUSHITA ELECTRIC INDUSTRIAL CO LTD4FURUKAWA ELECTRIC CO LTD1IWANAGA SHIGERU1PANASONIC CORP1
Top patents by PatentIndex Score
14 records- 0189US7909701B2Power transmission apparatusDENSO CORP·Filed 2008·Granted Mar 22, 2011·11 cites·8 claims
- 0275US7123738B1LoudspeakerFURUKAWA ELECTRIC CO LTD·Filed 2000·Granted Oct 17, 2006·41 cites·4 claims
- 0371US7020301B2LoudspeakerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Mar 28, 2006·16 cites·26 claims
- 0454USD523422SSpeaker for an automobileMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Jun 20, 2006·11 cites·1 claims
- 0553US8231737B2Dish washer/dryerIWANAGA SHIGERU·Filed 2008·Granted Jul 31, 2012·3 cites·14 claims
- 0652US9674595B2Speaker and manufacturing method thereofPANASONIC IP MAN CO LTD·Filed 2014·Granted Jun 6, 2017·1 cites·14 claims
- 0748US2008312018A1Power transmission and hub used for power transmissionDENSO CORP·Filed 2008·Application pending·0 cites
- 0847USD524299SSpeaker for an automobileMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Jul 4, 2006·8 cites·1 claims
- 0947USD523849SSpeaker for an automobileMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Jun 27, 2006·8 cites·1 claims
- 1047US2008236979A1Power transmission apparatusDENSO CORP·Filed 2008·Application pending·0 cites
- 1146US7993227B2Hub for power transmission apparatusDENSO CORP·Filed 2008·Granted Aug 9, 2011·0 cites·8 claims
- 1243US2008295644A1Power transmission apparatusDENSO CORP·Filed 2008·Application pending·0 cites
- 1341US9008350B2Loudspeaker, electronic device and mobile device both including the same, and method of producing the samePANASONIC CORP·Filed 2013·Granted Apr 14, 2015·0 cites·17 claims
- 1438US9835205B2Friction clutchDENSO CORP·Filed 2015·Granted Dec 5, 2017·0 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →