Inventor
KOKUBU AKIO
JP8 patents
⚠️ This page may combine multiple inventors who share the name “KOKUBU AKIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NGK SPARK PLUG CO
6 patentsUS6208066B1Mar 27, 2001
Semi-creeping discharge type spark plug
NGK SPARK PLUG CO22 citations92
US6091185AJul 18, 2000
Lateral electrode type spark plug with geometrical relationships with ground electrode
NGK SPARK PLUG CO33 citations92
US5929556AJul 27, 1999
Spark plug with center electrode having variable diameter portion retracted from front end on insulator
NGK SPARK PLUG CO42 citations92
US6225752B1May 1, 2001
Spark plug for internal combustion engine
NGK SPARK PLUG CO19 citations84
US6617706B2Sep 9, 2003
Ignition system
NGK SPARK PLUG CO13 citations83
US6244247B1Jun 12, 2001
Ignition device for internal combustion engines
NGK SPARK PLUG CO8 citations69