Hiroyasu Takahashi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process of fabricating a manganese-zinc-ferrite core, and manganese...
- Patent number 6,309,558
- Issue date Oct 30, 2001
- TDK Corporation
- Yukiharu Kinoshita
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES