荒川 憲一

Arakawa Ken'ichi is a Japanese composer. He got his start composing for PC-88 doujin music disks, much like many of his contemporaries. He started his game composition for Nakamura Ken'ichirou's doujin circle MIN where he used the alias Thomas Brown. When MIN incorporated as Silence he composed under his real name, while he used the alias TOMAZO for titles from their main ***** brand, Sogna, as well as for their other ***** brand C-Class. During this time he also did composition for other companies, including C-Lab, Fairy Dust, Jaleco, Movic, Sega, and Studio Twinkle (where he used the alias Komoro Tatsuya). 

After leaving Silence (he may actually still have worked for Silence, I need to check this for sure), he did some work for a number of other companies, namely SofthouseChara, where he composed with his long time composition rival, Kajihara Masahiro, whom he had previously worked with on C-Lab and Studio Twinkle titles, and who's doujin circle published his doujin disks. He also worked on some Actress, AniSeed, Prima, Raziel, and Ripe games. 

Later he went to work for Success where he stayed for several years. His latest activity was part of the now defunct doujin circle GeOnDan of which other famous composers such as Hosoe Shinji and Umemoto Ryuu also were part of.

Despite having an alias "Komoro Tatsuya / Tetsuya", he is not the anime composer who shares his alias, Komoro Tatsuya (小諸 たつや).