Tadashi Okamoto

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Fujisawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Reinforcing member for civil and architectural structures
- Patent number 5,580,642
- Issue date Dec 3, 1996
- Mitsui Kensetsu Kabushiki Kaisha
- Tadashi Okamoto
- E04 - BUILDING
Information Patent Grant
Process for manufacturing of structural reinforcing material
- Patent number 4,770,832
- Issue date Sep 13, 1988
- Mitsui Kensetsu Kabushiki Kaisha
- Tadashi Okamoto
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process of producing resin concrete
- Patent number 4,758,610
- Issue date Jul 19, 1988
- Mitsui Kensetsu Kabushiki Kaisha
- Okamoto Tadashi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Reinforced structural material and reinforced fibrous inorganic str...
- Patent number 4,684,567
- Issue date Aug 4, 1987
- Mitsui Kensetsu Kabushiki Kaisha
- Tadashi Okamoto
- B28 - WORKING CEMENT, CLAY, OR STONE