Takeyuki Yonezawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Fiber-reinforced silicon nitride ceramic
- Patent number 5,187,127
- Issue date Feb 16, 1993
- Kabushiki Kaisha Toshiba
- Yasuhiro Goto
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Sialon based composite and method of manufacturing the same
- Patent number 5,112,780
- Issue date May 12, 1992
- Kabushiki Kaisha Toshiba
- Yasuhiro Goto
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Silicon nitride-ceramic and a manufacturing method therof
- Patent number 4,886,767
- Issue date Dec 12, 1989
- Kabushiki Kaisha Toshiba
- Yasuhiro Goto
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Silicon carbide sintered body and method of manufacturing the same
- Patent number 4,853,299
- Issue date Aug 1, 1989
- Kabushiki Kaisha Toshiba
- Toshiaki Mizutani
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES