Feature 米国の植物品種をめぐる権利に関する1930~2008年の変遷 2013年1月1日 Nature Biotechnology 31, 1 doi: 10.1038/nbt.2467 The types of plants being protected, by whom and by what form of varietal right, has changed markedly since the United States first enabled intellectual property protection for plant varieties in 1930. Full text PDF 目次へ戻る