三菱樹脂事件
http://ja.wikipedia.org/wiki/%E4%B8%89%E8%8F%B1%E6%A8%B9%E8%84%82%E4%BA%8B%E4%BB%B6
http://backno.mini.mag2.com/r/servlet/MBack?id=M0061235
http://www.law.kobegakuin.ac.jp/~jura/hogaku/34-1/34-1-03.pdf#search='%E4%B8%89%E8%8F%B1%E6%A8%B9%E8%84%82%E4%BA%8B%E4%BB%B6%20%E7%A7%81%E4%BA%BA%E9%96%93%E9%81%A9%E7%94%A8'