kai gunto , need help reading signature , please

[tommy l]

i have a ww2 kai gunto naval sword with 3 characters the last one says "saku" but thats all i know so far i added a pic if anyone reads Japanese or knows about this signature it would be greatly appreciated

[cabowen]

Hello-

 

I would be happy to help you but you will need to post photos that are large enough to read....

[Stephen]

maybe Yoshishige?

[cabowen]

I believe it is Takeyasu saku...

 

This would appear to be a stainless blade and is therefore non-traditionally made.

[Stephen]

lol i was going by the small pix, you can see my wild guess.