KW

Keiichiro Watanabe

NI Ngk Insulators: 1 patents #43 of 158Top 30%
Overall (1994): #104,803 of 165,921Top 65%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5316072 Sealing members for use in gas preheater Shoji Seike, Akira Ito 1994-05-31