Katsuhiro Hashimoto

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Yamato, JP

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Patents Grantslast 30 patents

Information Patent Grant
Flocculant for water treatment
- Patent number 5,415,808
- Issue date May 16, 1995
- Suido Kiko Kabushiki Kaisha
- Takao Hasegawa
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for producing flocculant for water treatment
- Patent number 5,227,089
- Issue date Jul 13, 1993
- Suido Kiko Kabushiki Kaisha
- Takao Hasegawa
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method and flocculant for water treatment
- Patent number 4,923,629
- Issue date May 8, 1990
- Suido Kiko Kabushiki Kaisha
- Takao Hasegawa
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE