田口 泰宏

Taguchi Yasuhiro is a Japanese composer and programmer. 

He started his career at Enix in 1987. At some point (likely 1988) he joined TamTam. He then joined Cube in 1990 under the alias Shibuya Dougen. Also in 1990, he joined Climax. He remained employed by Enix until 1991 and TamTam until 1992.

Around 1992, he left Climax to join Sonic! Software Planning, where he worked as director and programmer on many of the games in their Shining series, until Sonic's merger with Camelot Software Planning in 1998. 

After the merger he continued to work for Camelot where he still works to this day. At Camelot he has worked as a programmer on their Golden Sun series as well as many of their other games.