http://www.47news.jp/CN/201407/CN2014071401001859.html

http://www.yomiuri.co.jp/national/20140715-OYT1T50044.html?from=ytop_main9

http://www.ip.courts.go.jp/documents/thesis/thes_03/topics/topics_140711_01.html

http://headlines.yahoo.co.jp/hl?a=20140715-00000135-san-soci

http://headlines.yahoo.co.jp/hl?a=20140715-00000110-jij-soci