I remember seeing the last 8" plant shut down in 2007 or so, but I doubt there were any 12's being made in 2004.
edit: This auction might be interesting:
https://www.ebay.com/itm/Teichiku-Laser ... 3989714620 - if it's the same series that includes
#602. They're LD Singles, probably 8". Which would explain why the last factory was kept open longer,t hose are much easier to make.