Yutaka Harada

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Musashino, JA

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Patents Grantslast 30 patents

Information Patent Grant
Quick hardening cement-asphalt composition
- Patent number 4,084,981
- Issue date Apr 18, 1978
- Japanese National Railways
- Yoshiro Higuchi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Super rapid hardening mixture
- Patent number 4,060,425
- Issue date Nov 29, 1977
- Japanese National Railways
- Yutaka Harada
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES