Takashi Tokita

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Niigata, JP

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Patents Grantslast 30 patents

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Amorphous silica or silica-alumina spherical particles and process...
- Patent number 5,453,260
- Issue date Sep 26, 1995
- Mizusawa Industrial Chemicals, Ltd.
- Tadahisa Nakazawa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Amorphous silica spherical particles
- Patent number 5,236,683
- Issue date Aug 17, 1993
- Mizusawa Industrial Chemicals, Ltd.
- Tadahisa Nakazawa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Preparation of amorphous silica-alumina particles by acid-treating...
- Patent number 5,236,680
- Issue date Aug 17, 1993
- Mizusawa Industrial Chemicals, Ltd.
- Tadahisa Nakazawa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Process for preparation of zeolite slurry excellent in static stabi...
- Patent number 4,622,166
- Issue date Nov 11, 1986
- Mizusawa Kagaku Kogyo Kabushiki Kaisha
- Tadahisa Nakazawa
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...