Murakami, Suguru
Shimamoto, Toshi
Nagano, Hideaki
Tsuruno, Masahiro
Okuhara, Hiroaki
Hatanaka, Haruyo
Tojo, Hiromasa
Kodama, Yukiko
Funato, Kouichi
Article History
Received: 17 August 2015
Accepted: 12 October 2015
First Online: 17 November 2015
Competing interests
: Some of this work has been included in patents (Japanese, Patent No. 4737531, 5344517; United States, Patent No. US8,367,375 B2; European, Patent No. 2157186).