Hard to tell much from the pictures provided. What I can see suggests that they appear to be fairly standard chitana, probably sold for a few hundred dollars or maybe much less originally, probably made out of Chinese mystery steel. The manufacturers or more accurately the factories come and go. A quick look at the big auction site shows a very similar one under the moniker.
"Handmade Gold Blade Japanese Samurai Sword Dragon Katana Full Tang Sharp"
For 120 dollars. The etchings are done differently but they are nearly identical in composition.
The company is listed as KATOKU and the blades are "carbon steel." I'll be pretty surprised if you ever find much more than that.