Inventor · disambiguated record
Akio Kokubu
Also filed as: KOKUBU AKIO
8 granted patents·185 citations·filing 1989–2000
89Inventor score
Top patents by PatentIndex Score
8 records- 0186US5929556ASpark plug with center electrode having variable diameter portion retracted from front end on insulatorNGK SPARK PLUG CO·Filed 1996·Granted Jul 27, 1999·42 cites·19 claims
- 0281US6091185ALateral electrode type spark plug with geometrical relationships with ground electrodeNGK SPARK PLUG CO·Filed 1998·Granted Jul 18, 2000·33 cites·10 claims
- 0375US6225752B1Spark plug for internal combustion engineNGK SPARK PLUG CO·Filed 2000·Granted May 1, 2001·19 cites·8 claims
- 0475US5130652AAC magnetic flux leakage flaw detecting apparatus for detecting flaws in flat surfaces with rotating leakage detection elementEDDIO CORP·Filed 1989·Granted Jul 14, 1992·38 cites·9 claims
- 0568US6208066B1Semi-creeping discharge type spark plugNGK SPARK PLUG CO·Filed 1998·Granted Mar 27, 2001·22 cites·37 claims
- 0662US7058804B1Data storing system, issuing apparatus, data providing apparatus and computer readable medium storing data storing programNIPPON TELEGRAPH & TELEPHONE·Filed 2000·Granted Jun 6, 2006·10 cites·14 claims
- 0755US6617706B2Ignition systemNGK SPARK PLUG CO·Filed 1999·Granted Sep 9, 2003·13 cites·12 claims
- 0832US6244247B1Ignition device for internal combustion enginesNGK SPARK PLUG CO·Filed 1997·Granted Jun 12, 2001·8 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →