Akio Okumura

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Solar-system house
- Patent number 4,967,729
- Issue date Nov 6, 1990
- Kabushiki Kaisha Ohem Kenkyujyo
- Akio Okumura
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
Solar-system house
- Publication number 20020117166
- Publication date Aug 29, 2002
- KABUSHIKI KAISHA OHEM KENKYUJO
- Akio Okumura
- F24 - HEATING RANGES VENTILATING