Japan boasts the world's highest number of patent applications in the field of renewable energies, with 55 percent, followed by the U.S. with 21 percent, EU with 7 percent, PCT Applications [Note], South Korea, and China, according to a document released by the Japan's Ministry of the Environment (MOE) on July 27, 2011. The document was compiled by MOE based on a 2010 report by the World Intellectual Patent Organization (WIPO) and presented at the 94th Global Environmental Committee of the Central Environment Council as a position document from the former session.
..Japan's research and development in the renewable energy field is "very advanced" both in academic/public research institutes and private sectors, according to the 2011 edition of "International Comparison of Science and Technology/Research and Development 2011" produced by the Japan Science and Technology Agency (JST). Japan is leading the world in the solar cells field, and its wind power and geothermal generation technologies have maintained equivalent positions to the US and European nations. However, when it comes to biomass technologies, Japan depends too much on technology transfer from overseas, except for particular technologies such as biofuel. Japan thus needs to carefully select and focus on specific fields.
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