1. Household Research Laboratories No. 1, Household Products Division, Lion Corporation
2. Pharmaceutical Research Laboratories No. 1, Pharmaceutical Products Division, Lion Corporation
3. Biological Science Research Center, Lion Corporation
4. Research & Technology Headquarters, Lion Corporation
5. Department of Materials Engineering, Nagaoka National College of Technology, Japan
6. Department of Applied Microbiology, Faculty of Pharmaceutical Sciences, Hoshi University