Kuwahara, Atsushi
Ozone, Chikafumi
Nakano, Tokushige
Saito, Koichi
Eiraku, Mototsugu
Sasai, Yoshiki
Article History
Received: 10 May 2014
Accepted: 12 January 2015
First Online: 19 February 2015
Competing interests
: A.K., T.N. and K.S. are employed by Sumitomo Chemical Co., Ltd (SCC). The authors are co-inventors on patent applications filed by RIKEN and SCC. The authors declare no other competing financial interests.