1. Reproductive Biology and Technology Laboratory, Developmental Biology Department, National Institute of Agrobiological Sciences
2. Present: Laboratory of Reproductive Physiology and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University
3. Present: Animal Cell Biology Laboratory, Physiology and Genetic Regulation Department, National Institute of Agrobiological Sciences
4. Present: Laboratory of Veterinary Pharmacology, School of Veterinary Medicine and Animal Science, Kitasato University
5. Present: Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Iwate University