Hirofumi Tsutsumi

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Fukuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of dusting-preventive treatment of powder having dusting pro...
- Patent number 6,998,067
- Issue date Feb 14, 2006
- Hirofumi Tsutsumi
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Dusting-inhibited cement composition improved in strength
- Patent number 6,464,776
- Issue date Oct 15, 2002
- Aso Cement Co., Ltd.
- Hirofumi Tsutsumi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

Information Patent Application
Method of dusting-preventive treatment of powder having dusting pro...
- Publication number 20040245495
- Publication date Dec 9, 2004
- ASO CEMENT CO., LTD.
- Hirofumi Tsutsumi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Method of dusting-preventive treatment of powder having dusting pro...
- Publication number 20040048935
- Publication date Mar 11, 2004
- Hirofumi Tsutsumi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES