Mr. Sumida, Dr. Nishida, Dr. Wang, Prof. Takahashi visited this lab on Jun 1st, 2010

Mr. Toshio Sumida, Dr. Mayumi Nishida, Dr. Haiyu Wang, Prof. Tamotsu Takahashi visited this lab on Jun 1st, 2010.
 
Mr. Toshio Sumida is the Director of Koei Chemical Com. Ltd., Japan
Dr. Mayumi Nishida is the Director of Research Institute, Koei Chemical Com. Ltd., Japan
Dr. Haiyu Wang is from Research Institute, Koei Chemical Com. Ltd., Japan
Prof. Tamotsu Takahashi is from Hokkaido University, Japan