Yukio Tokunago

Follow

Person

Fujieda, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Resin coated sand for shell foundry process
- Patent number 4,459,375
- Issue date Jul 10, 1984
- Sumitomo Durez Company, Ltd.
- Yukio Saeki
- B22 - CASTING POWDER METALLURGY