Author Affiliations +
Seizo Miyata,1,2 Naoto Tsutsumi,3 Junji Watanabe,1 Toyohiko Yatagai,4 Okihiro Sugihara,5 Kohzo Hakuta6
1Tokyo Institute of Technology (Japan)
2Japan Science and Technology Agency (Japan)
3Kyoto Institute of Technology (Japan)
4Utsunomiya Univ. (Japan)
5Tohoku Univ. (Japan)
6The Univ. of Electro-Communications (Japan)