Actually I may not be so sure...
http://www.utihamono.com/houcho/nakirik.html does look very similar and the price is not far off, but it might
See the price here. It's called 'Drifting Cloud"
Tosa is a region. Maker is Kajiwara I guess.
Oh and evil hush-hush site [/sarcasm] has
How warm does it need to be ?
I assume you don't boil it.
Thanks for the info guys