Thank you Bazza and Stephen.
Now I am not sure on the maker. It was brought to my attention that the Yokohama Sukekane tang signature may not match other known signatures . The third kanji to be specific.
Thoughts?
http://s1164.photobucket.com/user/Kenhash8/media/Japan%20Knives/K-sukekane-01_15_zpsa9oxka6r.jpg.html
http://s465.photobucket.com/albums/rr19/m115e/Dagger/IMG_0022_zpsrbxhu0ie.jpg