KN

Katsunari Ninomiya

Ngk Spark Plug Co.: 1 patents #48 of 120Top 40%
Overall (2002): #179,161 of 266,432Top 70%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6437493 Glow plug and spark plug, and manufacturing method therefor Hiroaki Nasu, Wataru Matsutani, Chiaki Kumada 2002-08-20