Noriyuki Ukai

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Nagoya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Silicon nitride ceramic sintered bodies
- Patent number 5,017,531
- Issue date May 21, 1991
- NGK Insulators, Ltd.
- Noriyuki Ukai
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method of producing homogeneous silicon nitride sintered bodies
- Patent number 4,871,697
- Issue date Oct 3, 1989
- NGK Insulators, Ltd.
- Issei Hayakawa
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Ceramic sintered bodies and a process for manufacturing the same
- Patent number 4,820,665
- Issue date Apr 11, 1989
- NGK Insulators, Ltd.
- Noriyuki Ukai
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES