Kanji translation help

[simona]

Hej, hope you are all having a great evening/day, wherever you are.
I wonder if someone could help with this? it's on a smaller nakiri I picked up at an online Japanese auction. The seller said it was a bespoke piece that was never collected from his family's cutler shop.
Much appreciated.
Cheers.

 

[blokey]

Kawata Betsusaku Sanmai, specially made by Kawata, cladded

 

[simona]

Than

Kawata Betsusaku Sanmai, specially made by Kawata, cladded

Thank you so much!! It's not a name I am familiar with, are you?

Cheers!!