Hmm... I did a little more digging into this rumor, and it seems that it was so widespread that both Aikawa and Kyoda addressed this on their twitters.
https://twitter.com/#!/nishi_ogi/status/191876984098394114
Aikawa's tweet reads: 武良翔人 (Bura Tobito) is an actual person's pen name. It is not a studio credit system like Hajime Yatate, nor is it myself or Fumihiko Takayama. I'm sorry that I cannot say anything more regarding this, out of respect for proper manners.
https://twitter.com/#!/kyoda_contact/status/191939311665545216
Kyoda's tweet is in reply to someone commenting that the pen name belongs to Fumihiko Takayama: No, that is not the case.
It seems they're both strongly denying this, but Aikawa indicates clearly that this is a pen name of someone who is probably known within the industry. Interesting...