Hideo Ohshima

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Omiya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Al.sub.2 O.sub.3 based ceramic
- Patent number 5,275,981
- Issue date Jan 4, 1994
- Mitsubishi Material Corporation
- Akio Nishiyama
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Al.sub.2 O.sub.3 Based ceramics
- Patent number 5,188,908
- Issue date Feb 23, 1993
- Mitsubishi Materials Corporation
- Akio Nishiyama
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Silicon nitride based sintered material and process of manufacturin...
- Patent number 5,130,279
- Issue date Jul 14, 1992
- Mitsubishi Materials Corporation
- Takashi Koyama
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES