Yoshitaka Yamana

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Carbonaceous particles and carbonaceous fibers both coated with bor...
- Patent number 6,194,067
- Issue date Feb 27, 2001
- Nippon Steel Corporation
- Takeshi Hamada
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Atomizing roasting furnace for producing ferrite raw material powder
- Patent number 6,017,497
- Issue date Jan 25, 2000
- Nippon Steel Corporation
- Katsushige Matsuzaki
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Soft ferrite raw material powder, its sintered body, and their prod...
- Patent number 5,688,430
- Issue date Nov 18, 1997
- Nippon Steel Corporation
- Katsushige Matsuzaki
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES