Atsunori Negishi

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Tsukuba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Thiobacillus thiooxidansgrowth inhibitor, cement composition, and c...
- Patent number 6,224,658
- Issue date May 1, 2001
- Hazama Corporation
- Terunobu Maeda
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Thiobacillus thiooxidans growth inhibitor
- Patent number 6,146,666
- Issue date Nov 14, 2000
- Hazama Corporation
- Terunobu Maeda
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Dephosphorizing material and dephosphorizing method
- Patent number 5,665,241
- Issue date Sep 9, 1997
- Hazama Corporation
- Terunobu Maeda
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE