HN

Hisayoshi Nonaka

NI Ngk Insulators: 1 patents #50 of 163Top 35%
Overall (1997): #141,055 of 185,788Top 80%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5635432 High-strength silicon nitride sintered body Toshihiko Honda 1997-06-03