Shigeyoshi Nakayama and Tokiko Umemoto of the Analysis Technology Research Center, along with their co-authors Takenori Notoya, Technical Advisor of Japan Copper & Brass Association, and Toshiyuki Osakai, Associate Professor of Kobe University, were presented with the Japan Society of Corrosion Engineering (JSCE) Best Paper Award for their research paper "Quantitative Analysis of Copper Sulfides by Voltammetry Using a Strongly Alkaline Solution."
The paper was selected from among those published from the January 2009 to December 2010 issues of the JSCE's journal Zairyo-to-Kankyo (Corrosion Engineering). Commemorative lectures and an award ceremony were held at the Zairyo-to-Kankyo 2011 Symposium at Waseda University; awardees received certificates and plaques.
The co-authors had spent many years studying methods of quantifying copper oxides, developing an electrochemical method of quantitatively analyzing corrosion products on the surface of copper. The awarded paper discusses an even better method of copper sulfide quantification developed by the researchers. This method is currently used to evaluate Sumitomo Electric's original products. It is hoped that the method will be used widely outside the Company and eventually become established as standard.