TO

Tamotsu Oka

MM Mitsubishi Mining: 2 patents #467 of 2,247Top 25%
Overall (All Time): #2,318,410 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5056275 Continuously-operable abrasive blasting apparatus Hirokazu Wada, Nagio Minami 1991-10-15
5040768 Powdery article supply valve mechanism Nagio Minami 1991-08-20