ACOM CO., LTD. Company's logo.
<a href="//commons.wikimedia.org/wiki/User:%E9%89%84%E4%B9%8B%E4%BB%8B" title="User:鉄之介">鉄之介</a>
Own work  using: <a rel="nofollow" class="external free" href="http://www.acom.co.jp/">http://www.acom.co.jp/</a>