| http://www.w3.org/ns/prov#value | - 8, 2005National Institute Of Advanced Industrial Science And TechnologyProton-conducting membrane, method for producing the same, and fuel cell using the sameUS20020004453Dec 22, 2000Jan 10, 20023M Innovative Properties CompanyMultilayer; containing platinum and metal oxide such as titanium, tantalum, tungsten or molybdenum oxideUS20020015875Aug 20, 2001Feb 7, 2002Hae-Kyoung KimReinforced composit
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