From the back of the "Elite" TV brochure:

"@2011 Sharp Electronics
Elite and Elite Logo are registered trademarks of Pioneer Corporation and used under license."

This is the ONLY place in the 10 page brochure to say Pioneer.

It's not "Pioneer Elite", it's not "Elite by Pioneer", it's just "Elite".

If you search for the Elite website by one of the model numbers it's on page 3 of Google results. The website is registered to Sharp Electronics Corporation.