VGFacts

Because Iwasaki supervised both Drakengard and Ace Combat 3, both games were given working titles Dragonsphere and Electrosphere respectively.

Original Source
http://www.vgtime.com/topic/883021.jhtml

Translation
https://docs.google.com/document/d/e/2PA...r4NOLa/pub

Source says the supervisor was someone under the name of Iwaki Takuya if I'm reading this correctly. Who is Iwasaki? Is that a translation error and the person's name is Takuya Iwasaki?

yes, he directed both games