1. Y. Kakino, A. Matubara, Y. Kita, H. Nakagawa, H. Otubo, S. Tozawa, Proc. Advanced of Intelligent Production, (Chiba, japan, 1994), pp.435-460.
2. Kita,Y., Kakino,Y.,. Matubara,A., Nakagawa,H., Otsubo, Proc. Intelligent Processing and Manufacturing of Material, Australasian-Pacific Forum, (Gold Cost, Australia, 1997), pp.900-906.
3. Y. KITA, H. Choi, H. Nakagawa,Y. Kakino Proc. of the Int. Conf. on Leading Edge Manufacturing in 21st Century, (Niigata, Japan, 2003, ), pp.275-280.