The PhD is a doctoral degree, specifically called a "doctor of philosophy" degree. This is misleading because PhD holders are not necessarily philosophers (unless they earned their degree in philosophy!). That said, PhD recipients are able to engage in thought experiments, reason about problems, and solve problems in sophisticated ways.
A PhD qualification in Communication is put in the global arena in terms of proper articulation of the language as well as literature. This area of study also allows you to integrate the different branches of communication to have the best world knowledge about the forms of communication and related speaking issues.
Japan has one of the highly integrated higher education systems in Asia. Japans approach to science and technology is highly rated thus their education levels very structured from childhood to primary through secondary to tertiary levels. With 126 million people living in Japan it has a cultural rich environment. Greater Tokyo area is the largest metropolitan area in the world, with over 30 million residents.
Top Doctoral Programs in Communication in Japan 2017
PhD - Doctor of Philosophy in Communication Studies (60 credits) [+]