Electronics and Communications in Japan (ECJ) publishes papers translated from the Transactions of the Institute of Electrical Engineers of Japan 12 times per year as an official journal of the Institute of Electrical Engineers of Japan (IEEJ). ECJ aims to provide world-class researches in highly diverse and sophisticated areas of Electrical and Electronic Engineering as well as in related disciplines with emphasis on electronic circuits, controls and communications. ECJ focuses on the following fields:

- Electronic theory and circuits,

- Control theory,

- Communications,

- Cryptography,

- Biomedical fields,

- Surveillance,

- Robotics,

- Sensors and actuators,

- Micromachines,

- Image analysis and signal analysis,

- New materials.

For works related to the science, technology, and applications of electric power, please refer to the sister journal Electrical Engineering in Japan (EEJ).