Heiichiro Obanawa

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for separating uranium isotopes by oxidation-reduction chro...
- Patent number 4,748,008
- Issue date May 31, 1988
- Asahi Kasei Kogyo Kabushiki Kaisha
- Kunihiko Takeda
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Composite porous material, process for production and separation of...
- Patent number 4,732,887
- Issue date Mar 22, 1988
- Asahi Kasei Kogyo Kabushiki Kaisha
- Heiichiro Obanawa
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for the separation of carbon isotopes by chemical exchange m...
- Patent number 4,406,870
- Issue date Sep 27, 1983
- Asahi Kasei Kogyo Kabushiki Kaisha
- Tetsuya Miyake
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL