Takeo Toyoizumi

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Ohi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Catalyst and process for hydrofining petroleum wax
- Patent number 4,186,078
- Issue date Jan 29, 1980
- Toa Nenryo Kogyo Kabushiki Kaisha
- Takuji Itoh
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Catalyst for hydrofining petroleum wax
- Patent number 4,139,494
- Issue date Feb 13, 1979
- Toa Nenryo Kogyo Kabushiki Kaisha
- Takuji Itoh
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL