Koichi Hatada, Professor Emeritus of Osaka University and the Fukui University of Technology and member of the IUPAC Polymer Division, celebrated his 80th birthday on 15 December 2014. We met Prof. Hatada more than 30 years ago, when we became members of the Commission of Macromolecular Nomenclature. It feels like yesterday. At that time Professor Hatada was already a seasoned member of IUPAC, where he started in 1988 as Associate Member of this Commission. He was Titular Member 1990-1997, Associate Member again 1998-2001, and concurrently a Member of the Interdivisional Committee on Nomenclature and Symbols (IDCNS). His kind and friendly personality, combined with his profound knowledge and great experience, has helped newcomers become familiar with the nomenclature of IUPAC. He is a great example of scientific rigor, integrity, and dependability, and has a natural authority.