It took me over an hour to find one in Japanese that wasn't dead. This knowledge might save someone time. (日本人は哲学を嫌いそうな. 一番の最低。)
The topics all are over the place and unlike here very few subject titles that have to do with western philosophers, or even philosophers in general. Topics are stereotypically Japanese. Here is a sample from the first page:
"If you were born in the midst of war and died in the Heian era." "Fate", "life and money", "kukai (buddhist founder)", "truth is subjective", "a method to transcend sophism," "questioning existence", "Nishida kitarou (philosophy professor born in 1870 with no corresponding wikipedia article in English)", "what is bad?", "is materialism not bad?", "let's talk about Christianity!", "the target of a smile", "the emptiness of the modern era's spirit of freedom", "the proof 1 + 1 = 2", "everything is one", "philosophical discourses on environmental problems". There is even a topic on white and black holes.
http://mb2.jp/_tetsugaku/all-res.html#M