Inventor · disambiguated record
Chiaki Kumada
Also filed as: KUMADA CHIAKI
11 granted patents·3 pending applications·121 citations·filing 1996–2013
90Inventor score
Files withNGK SPARK PLUG CO14
Top patents by PatentIndex Score
14 records- 0186US6236148B1Spark plug with specific metal shell coatingNGK SPARK PLUG CO·Filed 2000·Granted May 22, 2001·18 cites·8 claims
- 0274US6420683B1Glow plug with Ni-Fe-Co resistorNGK SPARK PLUG CO·Filed 2001·Granted Jul 16, 2002·12 cites·7 claims
- 0369US6064039AGlow plug with small-diameter sheath tube enclosing heating and control coilsNGK SPARK PLUG CO·Filed 1999·Granted May 16, 2000·32 cites·29 claims
- 0467US7122947B2Glow plug and spark plug, and manufacturing method thereforNGK SPARK PLUG CO·Filed 2004·Granted Oct 17, 2006·7 cites·7 claims
- 0567US6843218B2Glow plug energization control apparatus and glow plug energization control methodNGK SPARK PLUG CO·Filed 2004·Granted Jan 18, 2005·16 cites·14 claims
- 0666US6437493B2Glow plug and spark plug, and manufacturing method thereforNGK SPARK PLUG CO·Filed 2001·Granted Aug 20, 2002·5 cites·12 claims
- 0756US7319208B2Controller and glow plug for controlling energization modesNGK SPARK PLUG CO·Filed 2003·Granted Jan 15, 2008·11 cites·23 claims
- 0850US7041938B2Glow plug, glow plug mounting structure, and glow plug manufacturing methodNGK SPARK PLUG CO·Filed 2002·Granted May 9, 2006·5 cites·12 claims
- 0947US6627854B2Heater and glow plugNGK SPARK PLUG CO·Filed 2002·Granted Sep 30, 2003·3 cites·10 claims
- 1047US5767485ASheathed heater with a series-connected current regulating resistor comprised of cobalt-copper alloyNGK SPARK PLUG CO·Filed 1996·Granted Jun 16, 1998·12 cites·9 claims
- 1142US6791245B2Glow plug and spark plug, and manufacturing method thereforNGK SPARK PLUG CO·Filed 2002·Granted Sep 14, 2004·0 cites·5 claims
- 1241US2004222207A1Glow plugNGK SPARK PLUG CO·Filed 2004·Application pending·0 cites
- 1338US2014117991A1Glow plug inspecting method, glow plug manufacturing method, sheathed heater inspecting method, and sheathed heater manufacturing methodNGK SPARK PLUG CO·Filed 2013·Application pending·0 cites
- 1429US2004173595A1Glow plugNGK SPARK PLUG CO·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →