A Study on the Advancedness of Technological Development of Electronic Components Using Patent Information

Japanese capacitor companies have a high share of the global market. High reliability of electronic components plays an important role in ensuring high safety and performance of the entire system. This study focuses on corporate R&D activities related to electrolytic capacitors. This paper proposes a method for analyzing the number of patents that are the result of technological development and for deriving advancedness through textual analysis of patent information. The method was also used to investigate the advanced nature of technological development. The results show that although the number of patents is at a high level, there are issues with the advancedness of the technology.