Yoshio Kosaka

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Sintered aluminum nitride body and method for making
- Patent number 4,711,861
- Issue date Dec 8, 1987
- TDK Corporation
- Kentaro Sawamura
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Sintered aluminum nitride body
- Patent number 4,672,046
- Issue date Jun 9, 1987
- TDK Corporation
- Kentaro Sawamura
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES