Inventor
SAKAYANAGI NOBUAKI
JP11 patents
⚠️ This page may combine multiple inventors who share the name “SAKAYANAGI NOBUAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SAKAYANAGI NOBUAKI
4 patentsUS8212463B2Jul 3, 2012
Spark plug and its manufacturing method
SAKAYANAGI NOBUAKI8 citations82
US8487520B2Jul 16, 2013
Spark plug and method of manufacturing the same
SAKAYANAGI NOBUAKI6 citations71
US8841827B2Sep 23, 2014
Spark plug with improved resistance to spark-induced erosion of the ground electrode tip
SAKAYANAGI NOBUAKI3 citations60
US8264131B2Sep 11, 2012
Spark plug
SAKAYANAGI NOBUAKI3 citations60