1. Obayashi Corporation
2. Dept. of Architecture, Faculty of Sci. and Tech., Sci. Univ. of Tokyo
3. DPRI, Kyoto University
4. Smoke Control Div., Building Research Institute, MOC.
5. Fire Preventive Materials Div., Building Research Institute, MOC.
6. Dept. of Architecture, Faculty of Sci. and Tech., Science Univ. of Tokyo