Audio Technica is Japanese, and though they may be built in China, I would think there are still copyright laws in Japan safeguarding design. I wonder if AT isn't even a division of Matsushita.........I don't have a clue. Perhaps your right, John.
W
Sorry for the tangent, Jazz-Vinyl...

Patents run from 17 to 20 years in the US (it changed to 20 years I think in 1995), so Matsushita patents for most things turntable related died by the late 90's/early 2000's as I'm pretty sure all R & D basically stopped with the advent of CD.
Audio-Technica is a Japanese company, the deck is likely made in China for lower labor/material costs to sell for under $300 (as opposed for $500 for the genuine article). But is it an authorized clone or not?
Here's where the story gets interesting...anybody know who founded Audio-Technica in 1962? Hideo
Matsushita.....yes, a family member to the then-fledgling Matshushita Corporation (parent of Technics and JVC)
http://www.audio-technica.com/cms/site/24ca27d9a4b486fe/index.htmlI love investigating interwoven situations like this

John