Ryoba is the most common type, it's the two sided (rip/cross cut) backless kind. They're really widely available these days - I've seen them in my local big box hardware store.
Dozuki is a back saw, with usually fine teeth and narrow kerf (my favorite Japanese saw is a fine cross cut Dozuki). A Kataba is a backless, single sided saw.
There's a handful of other types too but they aren't nearly as common.
Dozuki is a back saw, with usually fine teeth and narrow kerf (my favorite Japanese saw is a fine cross cut Dozuki). A Kataba is a backless, single sided saw.
There's a handful of other types too but they aren't nearly as common.