YN

Yukio Niwa

DT Daido Tokushuko: 1 patents #152 of 382Top 40%
📍 Kounan, JP: #21 of 48 inventorsTop 45%
Overall (All Time): #4,055,057 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4395280 Preheating process for steel-making materials Akira Takenouchi 1983-07-26