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In this study, we quantitatively compared the impact of mission-oriented research grants and curiosity-driven grants on the diversity of research subjects in Japan. First, we examined data for Japanese principal investigators receiving research funding between 2000 and 2010 in the field of nanotechnology and materials science, and identified groups of researchers whose publication performance was...
This paper examines the structure and the evolution of the patents judged as essential for three major recent technical standards in information technology (MPEG2, DVD and W-CDMA). We have found that these standards have many essential patents, which are owned by many firms with different interests. The number of essential patents has increased significantly over time since the standard was set. We...
International research collaboration has become important in recent years. This paper analyzes what gains drive the expansion of international research collaboration and what costs prevent it, with a special focus on the incidence of international co‐inventions (ICIs) in Asia and major Organisation for Economic Cooperation and Development countries. The major findings are as follows. ICIs become more...
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