Dr. Martin Dienwiebel, from Karlsruhe Institute for Technology (KIT), Germany, visited IROAST on August 16. Before giving a talk at a seminar for graduate students, Dr. Dienwiebel, appointed as an IROAST visiting professor on August 1, met with IROAST Director Hiyama and received the letter of appointment from the President of Kumamoto University. They then enjoyed talking about Dr. Dienwiebel's activities at Kumamoto University along with his host professors Takashima and Mine.