NAITO, Kazuo
(Research & Development Division, Bridgestone Corporatiion 3-1-1 Ogawahigashi-cho, Kodaira-shi, Tokyo 187, Japan)
;
KUSANO, Yukihiro
(Research & Development Division, Bridgestone Corporatiion 3-1-1 Ogawahigashi-cho, Kodaira-shi, Tokyo 187, Japan)
;
HORIUCHI, Takao
(Faculty of Engineering, Tokai University 1112 Kiakaname, Hiratsuka, Kanakawa 259-12, Japan)
;
LEE, Bong-Ju
(Reserch Laboratory of Engineering Materials, Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku, Yokohama 226, Japan)
;
KATO, Nobuko
(Research & Development Division, Bridgestone Corporatiion 3-1-1 Ogawahigashi-cho, Kodaira-shi, Tokyo 187, Japan)
;
KOINUMA, Hideomi
(Reserch Laboratory of Engineering Materials, Tokyo Institute of Technology 4259 Nagatsuta, Midori-ku, Yokohama 226, Japan)