Hirofumi Okui

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for producing hydrogen, electrochemical device, method fo...
- Patent number 7,056,423
- Issue date Jun 6, 2006
- Sony Corporation
- Ryuichiro Maruyama
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...

Patents Applicationslast 30 patents

Information Patent Application
Apparatus for producing hydrogen, electrochemical device, method fo...
- Publication number 20030116443
- Publication date Jun 26, 2003
- Ryuichiro Maruyama
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR