I suspect the source page -- or maybe the album credits itself -- misspelt the kanji name, and it should actually be 安岡孝章 (which is indeed Takaaki Yasuoka).
http://homepage2.nifty.com/PESAN/cdg-data.htm
This page shows that Takaaki Yasuoka and Kakumi Nishigomi collaborated on a Super Robot Wars album (search for their kanji names), so it's quite likely.