Keiichi Yamasaki

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Nara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process of making zirconia based ceramic material
- Patent number 5,863,850
- Issue date Jan 26, 1999
- Matsushita Electric Works, Ltd.
- Masahiro Nawa
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Zirconia based ceramic material
- Patent number 5,728,636
- Issue date Mar 17, 1998
- Matsushita Elec. Works, Ltd
- Masahiro Nawa
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES