Inventor

KAGAWA JUNICHI

JP28 patents

⚠️ This page may combine multiple inventors who share the name “KAGAWA JUNICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KAGAWA JUNICHI

NGK SPARK PLUG CO

Spark plug and a method of making the same for an internal combustion engine

Electrode for a spark plug in which a firing tip is laser welded to a front end thereof

Spark plug

Spark plug

Spark plug

Spark plug having a platinum tip on an outer electrode

Spark plug

Spark plug having a noble metal electrode portion

Method of manufacturing a spark plug electrode

Spark plug

Multielectrode spark plug

Creeping discharge spark plug

Method of making a spark plug for an internal combustion engine

Multi-gap spark plug for an internal combustion engine

Process for producing the center electrode of spark plug

Electrode structure for a spark plug

Spark plug with counterelectrode having plural apertures in flat portion thereof

Nickel alloy for spark plug electrodes

Spark plug and a method of making of same

Misfire detector device for use in an internal combustion engine

Misfire detector device for use in an internal combustion engine

Spark plug for internal combustion engine

Spark plug with pressure sensor

Center electrode structure for spark plug

Center electrode structure for spark plug

Ceramic valve supporting structure in use for internal combustion engine

SG ENG CORPORATION

Method for injecting injection filler into concrete structure and syringe therefor

MATSUTANI WATARU

Spark plug with alloy chip