Takehiko Hagio

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Dazaifu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing zirconia yttria grinding media used for grind...
- Patent number 4,430,279
- Issue date Feb 7, 1984
- Nippon Tungsten Co., Ltd.
- Takehiko Hagio
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Sintered bodies Al.sub.2 O.sub.3 -TiC-TiO.sub.2 continuing yttrium (y)
- Patent number 4,356,272
- Issue date Oct 26, 1982
- Nippon Tungsten Co., Ltd.
- Yutaka Kanemitsu
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES