Thanks for your help Grey that was very interesting but was a lot harder than I thought it would be - haha
I used that link and focused on the four dashes at the bottom as my easy radicals - but if its kane then that was a red herring as the strokes should be down strokes not four dashes ....
I did consider kane for some reason, I think because you said it was common, but ended up with ou, ryou and niru - but didn't think they were right so sneaked back here for another look !!
Thank you to those that helped me out.
On the plus side - it's amazingly addictive solving these sorts of problems!
But comparing the computer kane to the signature, well you can see how much you have to work at these to pick them out, I wouldn't have called that with any conviction in a million years...