• JEITA - Japan Electronics and Information Technology Industries Association ( http://www.jeita.or.jp/ )
• IEC TC49 - Piezoelectric and Dielectric Devices for Frequency Control and Selection ( http://www.ieice.org/jpn/kikaku/tc49/ )
• Japanese Standards Association ( http://www.jsa.or.jp/ )
• IEC - The Institute of Electronics, Information and Communication Engineers ( http://www.ieice.org/ )