You can logout by clicking the Execute button for Logout on the Settings page.
For Browsers
1. Click on the symbol in the upper right corner of the screen.
2. Click on "設定"
3. Click the "実行" button on the logout.
For Application
1. Click the "設定" button in the menu.
2. Click the "実行" button.
Automatic Logout
For security reasons, the system is set to automatically log out after a certain period of time.