I tried matching up the original composers to each track and got:
01 Shoji Meguro
02 Kenichi Tsuchiya
03 Kenichi Tsuchiya
04 Ryota Koduka
05 Kenichi Tsuchiya
06 Shoji Meguro
07 Shoji Meguro
08 Shoji Meguro
09 Shoji Meguro
10 Hidehito Aoki
11 Atsushi Kitajoh, Shoji Meguro
12 Shoji Meguro
13 Shoji Meguro
14 Shoji Meguro
So I dropped Toshiro Tasaki, Masaki Kurokawa and Misaki Okibe from the composer list.
Some of the original soundtracks didn't have composer breakdowns, so I consulted this:
http://72.14.235.132/search?q=cache:...&hl=en&strip=1
Although I can't vouch for its accuracy.