Trump Card for Countermeasures against Imitations
Zen International Patents and Trademarks
Toppan Printing Co., Ltd. (TOPPAN) has developed the world's first hologram that shines in pastel color when viewed from the front, and shines in monochrome when viewed from certain angles.
And this hologram can be manufactured by only TOPPAN's proprietary manufacturing method.
Therefore, if this hologram is affixed only to a genuine article, we can easily distinguish authentic one.

Source: http://www.toppan.co.jp/news/2018/01/newsrelease180115.html