Shigeru Matsuyama

Follow

Person

Utsunomiya, JA

People

Patents Grantslast 30 patents

Information Patent Grant
Process of manufacturing killed steel ingots of superior quality
- Patent number 4,046,187
- Issue date Sep 6, 1977
- Aikoh Co., Ltd.
- Shigeru Matsuyama
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Monoblock hot tops with aligned fibrous material
- Patent number 4,042,206
- Issue date Aug 16, 1977
- Aikoh Co., Ltd.
- Shigeru Matsuyama
- B22 - CASTING POWDER METALLURGY