Zhong-qing Wang[1]
Yasufumi Murakami[1]
Toshihiko Eki[1]
Akira Oyama[2]
Yukihiro Eguchi[2]
Akinori Sarai[1]
Hideaki Sugawara[1]
[1]Tsukuba life Science Center, The Institute of Physical and Chemical Research (RIKEN)
3-1-1 Koyadai, Tsukuba, Ibaraki 305, Japan
[2]Mitsui Knowledge Industry Co., Ltd., Research Institute
7-4, 3-chome Kojimachi, Chiyoda-ku, Tokyo, Japan