(1 October 2014) The National Diet Library (NDL) has acquired electronic doctoral dissertations for which degrees were conferred in or after April 2013. On 1 October 2014, the NDL started making them available.
You can view these electronic doctoral dissertations from Japanese institutions on the National Diet Library Digital Collections (Doctoral Dissertations) within the facilities of the NDL, and some titles are also available on the internet with the authors’ permission.
The announcement is here.