maybe a rep from Konami? (bandai and konami have booths at acen and other big cons i found... )
And once more I ask, Why?
Why would you want these people to come and what ywould you want to get out of a panel from them?
Atlus had a panel at AX two years ago, and it was horrible (I'm an ex-atus employee and my friends at Atlus felt that it was a waste of time. They got a bunch of horrible questions that could be answered using basic research on the web or questions that are confidential.
While it's nice you want to see and support industry, once more, I ask "why would you want these people to come".
The only thing I can think of, is different stories that they have in the industry, but really, a lot of that is confidential to share. It's very unprofessional to share stories concerning other companies/people without their consent and all. Also, at this point, it no longer becomes an "industry panel" but instead a personal panel.
This was what I tried to do years ago, and no one showed up. A personal panel with people from the industry, where people could ask about experiences and stuff without actually drawing a line of industry.
It's really tricky to deal with because of lines drawn all over the place.
Something else to keep in mind, is that almost all the major "anime" game companies in the US don't really produce, they are merely localization companies and have very little say in what comes out. They take already made games, translate, localize and release them in the states, they don't make them. So getting "interesting" industry guest is quite difficult, because you'd be aiming towards the JP industry guessts, which is incredibly difficult since they as well as cons rarely think it's worth bringing them over.
Itagaki came to AX this year, I think he's the closest a con has gotten to having a video game industry personal worth getting for a panel. His panel failed though, because everything he was asked almost was so horrible.